CA2284568C - Press for compressing lubricating grease and the cartridges used therefor - Google Patents

Press for compressing lubricating grease and the cartridges used therefor Download PDF

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Publication number
CA2284568C
CA2284568C CA002284568A CA2284568A CA2284568C CA 2284568 C CA2284568 C CA 2284568C CA 002284568 A CA002284568 A CA 002284568A CA 2284568 A CA2284568 A CA 2284568A CA 2284568 C CA2284568 C CA 2284568C
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Canada
Prior art keywords
cartridge
press
connecting element
pipe
press head
Prior art date
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Expired - Lifetime
Application number
CA002284568A
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French (fr)
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CA2284568A1 (en
Inventor
Steffen Simon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mato Maschinen und Metallwarenfabrik Curt Matthaei GmbH and Co KG
Original Assignee
Mato Maschinen und Metallwarenfabrik Curt Matthaei GmbH and Co KG
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Filing date
Publication date
Priority claimed from DE19749512A external-priority patent/DE19749512A1/en
Application filed by Mato Maschinen und Metallwarenfabrik Curt Matthaei GmbH and Co KG filed Critical Mato Maschinen und Metallwarenfabrik Curt Matthaei GmbH and Co KG
Publication of CA2284568A1 publication Critical patent/CA2284568A1/en
Application granted granted Critical
Publication of CA2284568C publication Critical patent/CA2284568C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N3/00Devices for supplying lubricant by manual action
    • F16N3/10Devices for supplying lubricant by manual action delivering grease
    • F16N3/12Grease guns

Abstract

The invention relates to a press for compressing lubricating grease. The inventive device is provided with a heed (2) and a tube (21) screwed and held therein. The cartridge connection element is fitted with a connecting member (18) for a cartridge. The tube (21) is open at the end opposite to the press head.
The cartridge, which is joined to the cartridge connecting member, protrudes from the open end of the tube. Said cartridge is configured as a cylinder.

Description

PRESS FOR EXTRUDING LUBRICATING GREASE
DESCRIPTION
The invention concerns a press for extruding lubricating grease, with a press head with a high-pressure reciprocating pump, a high-pressure outlet opening with check valve, a low-pressure intake opening for feeding to the reciprocating pump the mass to be extruded, a device for actuating the pump piston of the reciprocating pump, and a connection on the press head for connecting a pipe to the press head, the pipe containing a lubricating grease filled, cylindrically shaped cartridge with a displaceable trailing piston.
Such a press, in the form of a hand lever press, is known from DE-A-22 14 652.
There, the rigid cartridge displays, in the region of its end facing the press head, a circular bead that is clamped between the pipe screwed into the press head and the press head. The bottom of the cartridge, displaying the outlet opening for the viscous mass, is formed in a convex manner, so that its ring edge abuts the press head. Between the bead of the cartridge and the press head is designed a seal, which is likewise intended to prevent the viscous mass from reaching the ring gap formed between the cartridge and the pipe. The end of the pipe turned away from the press head is formed open, so that the position of the trailing piston lodged displaceably in the pipe, and thus the fill level of the cartridge, can be perceived from outside through the opening. The diameter of the opening in the pipe is dimensioned smaller than the outer diameter of the cartridge. To replace a cartridge, it is thus necessary to unscrew the pipe from the press head, insert a new cartridge with bead from the side of the pipe turned away from the press head, and again screw the pipe onto the press head.
The designs of the lever press and of the cartridge to be found in connection with this application have various disadvantages. Thus, it is quite time-consuming to replace the cartridge, because the press head and the pipe must be separated.
Furthermore, provision must be made for sealing means between cartridge and press head or pipe. The cartridge is costly to make, since it is not designed as a component with constant inner and outer diameters, but rather displays a bead.
The contents of the cartridge, i.e. the type of lubricating grease, is not recognizable from the outside, since indications as to the lubricating grease located in a particular cartridge are not, as a rule, present in the bottom region of the cylinder section of the cartridge.
Known from US-A-5 044 471 is a hand lever press for extruding lubricating grease.
There, instead of a cylindrical cylinder, a bellows cartridge is used. This has, among others, the disadvantage that it does not permit a complete and clean emptying.
Clamped between the press head and a pipe screwed into this is an attachment element, which displays a connection for the screwing in of the bellows cartridge.
The pipe that surrounds the bellows cartridge is closed in the region of its end turned away from the press head and inside the pipe is arranged a compression spring, which is effective between this end and a piston that impinges upon the bellows cartridge. With increasing emptying, the bellows cartridge is compressed.
The fill level of the bellows cartridge inserted into the pipe cannot be perceived from outside. To replace the bellows cartridge, the pipe must be unscrewed from the press head.
Known from GB-A-2 273 745 is likewise a hand lever press for extruding lubricating grease in which a bellows cartridge finds application. This bellows cartridge is screwed directly into the press head in the region of the outlet connection piece of the cartridge and is surrounded by a pipe that is likewise screwed into the press head. The pipe is formed open in the region of its end turned away from the press head. The bellows cartridge is located completely inside the space enclosed by the pipe, so that it is protected against damage from outside during use of the press. In order enable the fill level of the bellows cartridge to be ascertained, the pipe is provided on its side with a slot that extends in the longitudinal direction of the pipe over a part of its length. According to the fill level of the bellows cartridge and thus to the greater spacing of the circumferential bellows edges when the cartridge is full, or, on the other hand, to the lesser spacing of these bellows edges in the partially or completely empty state, the approximate fill level of the bellows cartridge can be perceived through the slot. Since the bellows cartridge collapses with increasing emptying, for its replacement it is necessary to unscrew the pipe from the press head.
Under the type designation MATO DF 500, a pneumatic one-hand press of the firm MATO Machinen- and Metallwarenfabrik Curt Metthaei GmbH & Co. KG, Miihlheim, has become known. This displays a main body that is formed in essence by the pressure unit and the press head. Here, the cartridge, after its sealing cap has been removed, is screwed, together with the grease-pressing cylinder, into the press head. Furthermore, pneumatic presses for lubricating grease are known from DE-A-35 27 925.
A dispenser for issuing pasty masses, for example toothpaste, is known from DE-A-40 13 705. In this dispenser, a cylindrical cartridge with a base is used, which cartridge completes a housing that displays a conveying device, arranged in a head piece, for proportioned issuing of the mass from a mouth piece, under the step-by-step advance of a trailing piston arranged in the cartridge. The cartridge is introduced through the lower opening of the housing into a pipe-shaped section of the housing and the cartridge, along with its socket displaying an outer thread, is screwed into a central housing floor, whereby an annular collar forming the base of the cartridge contacts the housing on the face side. This is necessary so that a cylindrical wall of the cartridge is at the correct distance from a pump piston of the dispenser and the latter thus functions correctly. The dispenser standing open in the region of the cartridge is grasped by one hand on the outside in the region of the housing and an actuating handle integrated in the head piece is pressed by one of the fingers of this hand. With this dispenser the cartridge is guided radially by the pipe-shaped section of the housing and the socket is held axially in the central housing floor. The cartridge is fixed through the contacting of its annular collar on the face side at the housing in the region of the lower opening of the housing.
From DE-A-39 24 926 is known a device for applying fluid, for example a cosmetic fluid, ink, dye, or a liquid pharmaceutical. The fluid is located in a cartridge that is inserted into a shaft and projects out of this in the rear. When the cartridge is moved in the longitudinal direction relative to the shaft, the cartridge moves together with a valve unit that works with it; the valve unit issues the fluid, for example onto a brush.
The task of the invention is to further develop a press of the type given in the introduction, in such a manner that cartridges used in it can be exchanged quickly and easily. With this device, the fill level of the cartridge should be perceivable, as well as the type and/or manufacturer of the lubricating grease located inside the cartridge. The sealing between cartridge and press should be ensured. The cartridge should be protected from damage from outside and, on account of the underlying conventional pressing-device type of construction, high stresses during use should be withstood.
The task is accomplished in a press of the type given in the introduction by the fact that provision is made for a cartridge-connecting element that is held between the press head and the pipe, the connecting element displaying a connection for the cartridge, and by the fact that the pipe is formed open in the region of its end turned away from the press head, the cartridge joined to the connecting element projecting from the open end of the pipe, guided by the pipe radially and is held fixed axially through the connecting element.
Thus, in the press according to the invention, provision is made for a cartridge-connecting element to which the cartridge is joined, it being essential that the cartridge is inserted into the pipe from the end of the pipe that is turned away from the press head. The sealing of the cartridge results directly at the cartridge connecting element, which thus forms a stop for the cartridge. The connecting element serves thus not only the holding of the cartridge but also its fixing because of the stop function. Since the cartridge exhibits a greater length than the pipe, the cartridge end protruding from the pipe can be conveniently grasped in order to join the cartridge to the cartridge-connecting element or to separate it from this.
In this, it is important that the cylindrical, stiffly designed cartridge protrudes sufficiently far from the pipe. This ensures that the cartridge can be well grasped and firmly screwed in, with the result that an airtight connection between cartridge and connecting piece, necessary for the functioning of the press according to the invention, is produced. Thus, the drawing of the lubricating grease from the cartridge during operation of the press is ensured. Since for replacement of the cartridge the pipe need not be removed from the press head, the cartridge can be replaced very quickly and easily and the operation of the press is substantially simplified. Beyond this, the cartridge is protected by the pipe. The cartridge end protruding from the pipe is marked with indications concerning the type of lubricating grease and/or the manufacturer. Through the fact that the end of the pipe turned away from the press head is open, the position of the trailing piston of the cartridge can be determined at any time, and thus its fill level.
The cartridge-connecting element can be designed as a separate component or can be integrated into the press head. The latter is of advantage in particular with a press head produced in a molding or casting process. In a preferred implementation form, provision is made for a cartridge-connecting element formed as a separate component that is held between the press head and the pipe.
Preferably, the press is designed as a hand-lever press, one-hand press, or pneumatic press.
If the press is designed as a hand lever press and displays only one hand lever, namely that for actuating the pump piston, then the pipe takes on the function of a grip, i.e. during operation the hand lever press is grasped at the grip and the hand lever. The number of components of the hand lever press can be considerably reduced with respect to the conventional hand lever press with pipe, piston rod, compression spring, collar, and clamp lever. The production costs of the hand lever press according to the invention is therefore correspondingly lower.
The concept of the press according to the invention makes possible a substantially improved tightness compared to a press with a collar. The cartridge is closely joined to the cartridge-connecting element, which for its part is positioned between the pipe and the press head so as to be sealed. The trailing piston is optimally matched to the cartridge.

Preferably, the cartridge-connection element is designed as a rotationally symmetrical body, with a bead that is wedged between press head and the pipe screwed into the latter, in particular with one or more sealing elements interposed.
The cartridge-connection element is thus positioned between the press head and the pipe during the assembly of the press. Between the cartridge-connection element and the actual bottom of the press head remains a space for receiving the viscous mass, which space is connected to the low-pressure intake opening of the press head. Preferably, this space is so formed that an optimal streaming of the viscous mass out of the cartridge and into the press head is ensured. The sealing between the bead of the cartridge-connection element and the press head is undertaken appropriately by means of a sealing ring, or, in the case of a plastic part, through the part itself.
According to a first preferred implementation form of the invention, the cartridge-connection element is designed so that it displays a threaded connection for the cartridge in the region of the outlet opening. Thus, provision is made for a screw connection between cartridge and cartridge-connection element. According to an advantageous further development, the cartridge-connection element is disc-shaped and possesses a perforating central threaded bore for receiving a projection of the cartridge displaying an outer thread, the threaded projection being provided with the outlet opening for the viscous mass. Alternatively, the cartridge-connection element can display a connecting piece with an outer thread and an inner opening, the outlet opening of the cartridge having an inner thread. The two above-specified configurations thus require different designs of the cartridge, one the one hand with a projection with an outer thread, and on the other hand an opening with an inner thread made in the base of the cartridge.
According to a second preferred implementation form of the invention, the cartridge-connection element displays a plug connector for the cartridge. In this case, in an advantageous further development the cartridge-connection element is designed in a ring-shaped manner, in which the wall strength of the ring can be calculated so as to be relatively low, since in this implementation form no thread for connecting the cartridge to the cartridge-connection element is required.
According to a useful design, the cartridge-connection element is provided with a recess in the region of its outer diameter, centered in the end turned towards the press head, as well as in the end of the cartridge-connection element turned away from the press head, for the purpose of inserting the cartridge between the connecting element and the pipe. It is considered especially advantageous if the cartridge-connection element is provided with a groove in the region of its recess for a locking connection to a bead of the cartridge and/or with a groove for receiving a sealing ring, in particular an elastic 0-ring.
In principle, also realizable is a one-piece cartridge-connection element, in which through selection of a suitable material both a sealing effect and a fixing can be achieved.
The press so characterized can be loaded with a full cartridge in an especially simple manner, since after the removal of a sealing cap turned towards the press, the cartridge is merely slid into the press pipe and, by means of a thrust, is pressed over the connecting element. Just as easily the empty cartridge can be removed again by a simple pulling away. A further advantage of this solution is the fact that the connecting element can be produced with an inner diameter that approaches the inner diameter of the cartridge, whereby an optimal viscous-mass influx space for the inflow into the inlet opening of the press is given.
The cartridge-connecting element consists preferably of plastic or metal. The cartridge consists preferably of plastic and is designed as a relatively stiff component. The press head and the pipe consist preferably of metal.
Since the cartridge is screwed or inserted, as the case may be, into the pipe from behind, the outer diameter of the cartridge must be adapted only to the inner diameter of the pipe. In this connection it is suggested that the cartridge be cylinder-shaped and that the outer diameter of the cartridge be slightly smaller than the inner diameter of the pipe, so that the cartridge is seated in the pipe largely without play. Consequently, during the insertion of a new cartridge, the latter is brought into the connection position at the cartridge-connecting element in a defined manner. When the cartridge has been inserted into the cartridge-connecting element, the cartridge should protrude from the pipe approximately 20 to 50 mm.
On this protruding cartridge end can be marked, for example, the type of grease as well as the supplier.
A specially designed cylindrical cartridge for receiving a viscous mass, in particular lubricating grease, can be used not only with the press designed according to the invention, employing a cartridge-connecting element provided with a thread, but also with conventional presses that display the piston rod and the collar that is prestressed by means of the spring.
Such a universally applicable cylindrical cartridge displays a pipe section with inner and outer diameters that remain constant over its length, the trailing piston being seated in the pipe section so as to be displaceable and the cartridge displaying a flat base, which is provided with a central opening for letting the viscous mass out of the cartridge; also, the base possesses an inner thread in the region of the opening.
The cartridge formed in this manner can, on the one hand, be screwed onto the cartridge-connecting element displaying the threaded projection, and on the other hand can be used with conventional presses, by virtue of the flat design of the cartridge base. After the retraction of the piston rod and its locking by means of the clamp lever, the cartridge is inserted into the unscrewed pipe from the press-head side and the pipe is again screwed to the press head. In order that the piston rod can be pushed in, the trailing piston is provided with, for example, a central predetermined breaking point. When the piston rod is pushed in, the nose of the piston rod breaks through the predetermined breaking point of the trailing piston and the nose of the piston rod, when the latter is pushed completely into the pipe, passes through the central opening of the cartridge. Through the ring gap between the piston rod, or rather its nose, and the central opening in the cartridge base, the viscous mass can be discharged from the cartridge into the press head upon compression. Instead of the design of the trailing piston with a central predetermined breaking point, it is also possible to fashion the trailing piston in such a manner that it is removed before the insertion of the cartridge into the unscrewed pipe. In this case, the collar presses not upon the trailing piston, but rather directly upon the viscous mass located in the cartridge. In order that a sufficient volume remains between the cartridge and the press head for the viscous mass to continue flowing, in particular in the region of the low-pressure intake opening, the cartridge should display in the region of its base a protruding ring bead, by means of which the cartridge supports itself against the lid of the press head or a sealing element that is adjacent to this.
An empty cartridge is either replaced with a new, full cartridge or it is refilled. The latter is possible without unscrewing the pipe from the press head by, for example, the fact that the press head is provided with a filling valve.
Further features of the invention are presented in the description of the figures an in the figures themselves; in this connection, it is noted that all individual features and all combinations of individual features are essential to the invention.
In the figures the invention is represented with the aid of several implementation forms as examples, without being limited to this. Shown are:
Figure 1: a first implementation form of a hand lever press, in a longitudinal central section Figure 2: a second implementation form of a hand lever press, in a longitudinal central section Figure 3: a side view of the hand lever presses illustrated in Figures 1 and 2 Figure 4: a view A of the hand lever press illustrated in Figure 3 Figure 5: an implementation form of a pneumatic press, in a longitudinal central section Figure 6: a third implementation form of a hand lever press, in a longitudinal central section Figure 7: an enlarged representation of the press shown in Figure 6, in the region of the cartridge-connecting element The hand lever presses 1 illustrated in Figures 1 through 4, for extruding a viscous mass, in particular lubricating grease, display a press head 2 with a high-pressure reciprocating pump 3. The latter is connected to a lid 4, which is provided with an inner thread 5. The reciprocating pump 3 displays a low-pressure intake opening 6 that is in alignment with a bore 7 in the lid 4. In addition, the reciprocating pump 3 is provided with a high-pressure outlet opening 8, into which a check valve 9 is inserted. A hand lever 10 is attached to the piston 1 1 of the reciprocating pump 3 so as to be swingable. The end of the hand lever 10 that is opposite from the hand grip 12 is connected to a connecting lever 13 in an articulated manner; the other end of the connecting lever 13 is attached in an articulated manner to the housing 14 of the reciprocating pump 3.
The lid 4, which is of an essentially rotationally-symmetric form, displays in its crease region at its edge a bead 15 that is directed outward. In the region of this bead 15 a sealing ring 16 is set into the lid. A cartridge-connecting element 17, formed rotationally-symmetric, is essentially cone-shaped and displays a projection 18 with an outer thread 19 arranged in its tapered region as well as a bead 20 extending outward in its region that is turned toward the bead 15 or the sealing ring 16. The outer diameter of the bead 20 is adapted to the inner diameter of the threaded section of the lid 4 in such a manner that the cartridge-connecting element can be inserted into the lid 4 against the sealing ring 16 with minimal play.
A pipe 21 of constant inner diameter and constant wall strength, which pipe is provided in the region of its end turned towards the press head 2 with a outer thread 22, can be screwed into the inner thread 5 of the lid 4, whereby the pipe 21 contacts with its front surface the bead 20 of the cartridge-connecting element 17 and presses the latter against the sealing ring 16. The pipe thereby effects a tight connection between the cartridge-connecting element 17 and the lid 4.
Inserted into the pipe is a cylindrical cartridge 23, which displays the same outer diameter over its entire length, which diameter is slightly smaller than the inner diameter of the pipe 21, so that the cartridge can be inserted into the pipe 21 from the rear, thus in the direction of the arrow 24, in an essentially play-free manner.
The cartridge consists of stiff plastic end possesses in the region of its end turned towards the cartridge-connecting element 17 a flat base 25, as well as a trailing piston 26 at its opposite end. This piston is provided with a predetermined breaking point 28 in the central region of its piston plate 27. The base 25 of the cartridge 23 displays, concentrically with the longitudinal central axis of the cartridge 23, an outlet opening 29 for the grease 30 contained in the cartridge, the ring section 31 that forms the opening 29 being provided with an inner thread 32 whose thread diameter corresponds to that of the outer thread 19 of the projection 18 on the cartridge-connecting element 17. Located on the outer edge of the base 25 is an axially-extending ring bead 50.
Not shown in the figures is a sealing element, in particular a sealing element formed as a threaded stopper that is screwed into the outlet opening 29 of the cartridge 23 and seals it up until the loading of the hand lever press. If the hand lever press is to be loaded, the sealing element is unscrewed and it is only necessary to insert the filled cartridge 23 into the pipe 21 and to screw it to the cartridge-connecting element 17. The length of the cartridge 23 here so calculated that it protrudes from the pipe 21 when screwed to the cartridge-connecting element 17; it can thereby be optimally grasped and in addition the information applied to the cartridge concerning type of grease and/or grease supplier is visible. Figure 1 illustrates with dashed lines the trailing piston 26 with a completely full cartridge 23 end with solid lines the piston when a cartridge is approximately half empty. The actual extrusion of the viscous mass, in particular the lubricating grease, takes place here in the following manner: The hand lever press 1 is grasped with two hands, one hand gripping the pipe 21 in the region of its free end, the other hand the grip 12 of the hand lever 10. If the grip 12 is moved away from the pipe 21, the piston 1 1, with a closed check valve 9, produces a vacuum in the cylinder of the reciprocating pump 3. As soon as the hand lever 10 has been swung far enough that the piston 11 unblocks the openings 6 and 7, the lubricating grease flows from the space 33 formed inside of the cartridge-connecting element 17 into the cylinder 14 of the reciprocating pump 3, so that upon the swinging back of the hand lever, and thus the progressing of the piston 1 1, the grease is fed through the high-pressure outlet opening 8 and the connection with the check valve 9. If at the start there is no grease in the space 33, several pump strokes must be carried out; in this, the inflow of grease into the space 33 can be supported by manual pressing on the trailing piston 26.
As can be seen in Figures 3 and 4, the press head 2 displays in addition a filling valve 34 via which the emptied cartridge 23 can be refilled, unless the exchanging of an empty cartridge with a new, filled cartridge is desired. The filling valve 34 is designed as a check valve.
If an emptied cartridge 23 is to be replaced by a new one, it is necessary merely to seize the empty cartridge in the region where it projects from the pipe 21 and to unscrew it from the cartridge-connecting element 17. Then a new cartridge 23 can be inserted into the pipe 21 and screwed onto the cartridge-connecting element 17.
In the implementation form according to Figure 2, the cartridge-connecting element 17 and the cartridge 23 are modified with respect to the implementation form according to Figure 1. Instead of a ring section 31 with an inner thread 32, the cartridge 23 displays in the region of its base 25 a central projection 35 with an outside thread 36, which projection is pointed towards the lid 4, and the ring bead is not present. Instead of the design of the cartridge-connecting element 17 as a conical component with a projection 18 and an outer thread 19, the cartridge-connecting element 17 is formed as a thick-walled plate with a bead 20, the plate displaying a bore with an inner thread 37. With this design, just as with the implementation form according to Figure 1, the cartridge-connecting element 17 is held fast in the region of its bead 20 between the pipe 21 and the lid 4, or the sealing ring 16 set into this. The cartridge 23 is screwed into the cartridge-connecting element 17 in the region of the projection 35 of the cartridge.
Figure 5 shows an implementation form of the press according to the invention that is designed as a pneumatic one-hand press. In this, the lid 4, the pipe 21, and the cartridge-connecting element 17 are designed in accordance with the corresponding parts of the implementation form according to Figure 1. The cartridge-connecting element serves to receive the above-described cartridge 23. To this extent, reference is made to the preceding implementations. In the pneumatic one-hand press the housing 14 of the reciprocating pump 3, which housing is connected to the lid 4, shows the check valve 9 with a high-pressure outlet opening 8.
Connected to the reciprocating pump 3 is a pneumatic cylinder 51, whose piston is displaceable against the force of a spiral spring 53 by means of pressurized air.
Connected to the air piston 52 is the piston 11 of the high-pressure reciprocating pump 3. Flanged onto the pneumatic cylinder 51 is a grip component 55, which displays a pressurized-air connection 55 as well as a valve 56 with a trigger arm 57 for triggering the lifting of the piston 52.
The implementation form of the press according to Figures 6 and 7 is modified with respect to the implementation forms according to Figures 1, 2, and 9 by the tact that, instead of the threaded connection of cartridge 23 and cartridge-connecting element 17 described in the context of the last-named implementation form, provision is made for a plug connection 59 between these parts. Parts of these implementation forms that correspond in their function and/or in their structure are marked with the same reference numerals for the sake of simplicity.
Figure 7, which illustrates the press in the region of the lid 4 on an enlarged scale, shows the ring-shaped cartridge-connecting element 17, which in the region of its outer diameter 60 is centered in the pipe end turned towards the press head 2, in the region of the inner diameter of the pipe. The end of the cartridge-connecting element 17 turned away from the press head 2 is provided with an outer, circular recess 61 for sticking the cartridge 23 between the connecting element 17 and the pipe 23. In addition, the cartridge-connecting element 17 displays in the region of its recess 61 a groove 62 for an engaged connection to a bead 63 of the cartridge 23. The recess 61 is furthermore provided with a ring groove 64 for receiving a sealing ring 65. This sealing ring 65, formed as an O-ring, seals the connecting element 17 completely at the cartridge 23. The connection and disconnection of the cartridge-connecting element 17 and the cartridge 23 takes place in a simple manner through the insertion of the free end of the cartridge into the connecting element 17 and the pulling of the cartridge 23 oft of the cartridge-connecting element 17.

Claims (16)

WHAT IS CLAIMED IS:
1. A press for extruding a lubricating grease from a cylindrically shaped cartridge having a displaceable trailing piston, the press comprising:
a press head having a high-pressure reciprocating pump defining a high-pressure outlet opening and a low-pressure intake opening for feeding a flowable mass to the pump to be extruded, the press head also having a check valve coupled to the outlet opening, said high-pressure reciprocating pump including an actuator;
a pipe for containing the cylindrically shaped cartridge, the pipe having a proximal end and a distal end, the proximal end being connected to the press head; and a cartridge-connecting element defining an upper opening and a lower opening, the upper opening being in communication with the intake opening and the lower opening being adapted for connection to the cartridge to provide fluid communication with the interior of the cartridge and to fix the cartridge axially, wherein the pipe has an axial length less than the axial length of the cartridge, such that when the cartridge is connected to the cartridge-connecting element a portion of the cartridge extends beyond the distal end of the pipe.
2. The press claimed in claim 1, wherein the cartridge-connecting element is a separate component held between the proximal end of the pipe and the press head.
3. The press claimed in claim 1 or 2, wherein said actuator is selected from the group consisting of: a hand lever actuator, a one-hand actuator and a pneumatic actuator.
4. The press claimed in any one of claims 1 to 3, wherein the press head includes a threaded coupling to the proximal end of the pipe, and wherein the cartridge-connecting element includes a rotationally-symmetric body having an outer bead thereon, the outer bead being clamped between the proximal end of the pipe and the press head, the press further comprising a sealing element compressed between the outer bead and the press head.
5. The press claimed in any one of claims 1 to 4, wherein the lower opening of the cartridge-connecting element includes a threaded connection for coupling to the cartridge.
6. The press claimed in claim 5, wherein the cartridge-connecting element includes a circular plate having a threaded bore defining a passage therethrough, the threaded bore being adapted to receive a threaded projection of the cartridge, the threaded projection defining an outlet opening for communication with the interior of the cartridge.
7. The press claimed in claim 5, wherein the cartridge-connecting element includes a tubular projection in communication with the lower opening and having an outer thread thereon adapted to engage an inner thread of an outlet opening within the cartridge.
8. The press claimed in any one of claims 1 to 4, wherein the cartridge-connecting element includes a plug connector for coupling the lower opening of the cartridge-connecting element to the cartridge.
9. The press claimed in claim 8, wherein the cartridge-connecting element is annular.
10. The press claimed in claim 8 or 9, wherein the interior of the pipe has a first diameter, the interior of the cartridge has a second diameter and the cartridge-connecting element has an proximal portion and a distal portion, and wherein the proximal portion of the cartridge-connecting element has an outer diameter corresponding to the first diameter, and the distal portion of the cartridge-connecting element has an outer diameter corresponding to said second diameter thereby allowing insertion of the cartridge between the distal portion of the cartridge-connecting element and the pipe.
11. The press claimed in claim 10, wherein the distal portion of the cartridge-connecting element has an outer wall having an annular groove to enable locking engagement with an inwardly extending bead on the cartridge.
12. The press claimed in claim 10, wherein the distal portion of the cartridge-connecting element has an outer wall defining an annular recess and wherein the cartridge-connecting element has an annular sealing ring disposed within the recess.
13. The press claimed in any one of claims 1 to 12, wherein the cartridge-connecting element is formed from plastic or metal.
14. The press claimed in any one of claims 1 to 13, wherein the press head further includes a filling valve.
15. A cartridge for use in the press claimed in any one of claims 1 to 14, wherein the cartridge has an outer diameter smaller than the interior diameter of the pipe.
16. A cartridge for use in the press claimed in any one of claims 1 to 14, wherein the portion of the cartridge that extends beyond the distal end of the pipe is between 20 to 50 mm in axial length.
CA002284568A 1997-03-22 1998-03-20 Press for compressing lubricating grease and the cartridges used therefor Expired - Lifetime CA2284568C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19712151.9 1997-03-22
DE19712151 1997-03-22
DE19749512.5 1997-11-08
DE19749512A DE19749512A1 (en) 1997-03-22 1997-11-08 Press for pressing viscose mass and cartridge used here
PCT/DE1998/000825 WO1998043012A2 (en) 1997-03-22 1998-03-20 Press for compressing lubricating grease and the cartridges used therefor

Publications (2)

Publication Number Publication Date
CA2284568A1 CA2284568A1 (en) 1998-10-01
CA2284568C true CA2284568C (en) 2004-05-18

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CA002284568A Expired - Lifetime CA2284568C (en) 1997-03-22 1998-03-20 Press for compressing lubricating grease and the cartridges used therefor

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Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE420837T1 (en) * 2001-02-21 2009-01-15 Cohen Ben Z PRECISION DOSING PUMP AND ACCESSORIES THEREOF
WO2002094708A1 (en) * 2001-05-23 2002-11-28 Cohen, Ben, Z. Accurate dosing pump
TWI259883B (en) * 2004-09-23 2006-08-11 Li-Chi Chen Lubricant gun capable of effectively discharging gas
TWM273665U (en) * 2005-03-17 2005-08-21 Tien-Chen Tung Pressure relief valve structure of a grease gun
TWM286324U (en) * 2005-09-26 2006-01-21 Shiue-Chin Jang Manual and pneumatic grease gun
WO2008014366A2 (en) * 2006-07-27 2008-01-31 Hendrickson International Corporation Lubricant cartridge for wheel end assemblies
EP2853799B1 (en) * 2007-05-01 2017-07-12 Noel Lindsay Dawson Bearing cleaning assembly
US8297476B2 (en) * 2008-11-10 2012-10-30 Weems Industries, Inc. Quick connect grease gun barrel and method of use
AU2013200668B2 (en) * 2010-07-19 2013-09-05 Dann, Brenda Lee A Lubricant Applicator
DK3002496T3 (en) * 2014-09-12 2019-06-11 Frank Maser Grease Gun
EP2995845A1 (en) * 2014-09-12 2016-03-16 Frank Maser Grease gun
US10400952B1 (en) * 2014-10-21 2019-09-03 Gree-See Technology, Llc Fluid dispenser
DE102015016821A1 (en) * 2015-12-23 2017-06-29 Pressol - Schmiergeräte GmbH Lubricant press, lubricant press set and use of a cartridge in a lubricant press
US9874310B2 (en) * 2016-01-15 2018-01-23 Gree-See Technology, Llc Grease gun cartridge construction
DE102016002263A1 (en) 2016-02-25 2017-08-31 Pressol - Schmiergeräte GmbH Conveying device for conveying a flowable medium
US10334837B1 (en) * 2018-02-14 2019-07-02 Bayer Cropscience Lp Applicator for pesticides with trigger and cartridge
US10399243B1 (en) 2018-02-27 2019-09-03 Louis Lozier Glue injecting apparatus
GB2576936A (en) 2018-09-07 2020-03-11 Gurtech Pty Ltd Grease injection gun cartridge adaptor

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH182849A (en) * 1935-02-06 1936-02-29 Berlin Karlsruher Industrie Werke Ag Wrapping of a flat elongated object with a quadrilateral straight section.
GB1316077A (en) * 1971-03-25 1973-05-09 Grease Appliance Co Ltd Grease guns
GB1318022A (en) * 1971-04-08 1973-05-23 Grease Appliance Co Ltd Grease guns
DE2144459A1 (en) * 1971-09-01 1973-03-15 Tecalemit Gmbh Deutsche COMPRESSED AIR SPRAY GUN
US3780830A (en) * 1972-04-24 1973-12-25 K P Manuf Inc Cartridge-type grease guns
US4077494A (en) * 1976-12-15 1978-03-07 Parker-Hannifin Corporation Grease gun
US4572332A (en) * 1984-06-14 1986-02-25 Lisle Corporation Speedometer cable lubrication tool
US4664298A (en) * 1985-05-01 1987-05-12 Stewart-Warner Corporation Dual mode grease gun
DE3517123A1 (en) * 1985-05-11 1986-11-13 Mato Maschinen- Und Metallwarenfabrik Curt Matthaei Gmbh & Co Kg, 6050 Offenbach HAND LEVER GREASE PRESS
US5044471A (en) * 1990-04-23 1991-09-03 Lincoln Grease gun cartridge adapter
US5203839A (en) * 1991-06-14 1993-04-20 Skaggs Kenneth R Apparatus for dispensing adhesive materials
US5277339A (en) * 1992-03-26 1994-01-11 Alemite Corporation Dual mode pistol-grip grease gun
JP2554587B2 (en) * 1992-12-22 1996-11-13 日本グリースニツプル株式会社 Tube type push type one hand liquid injection gun
JPH06193793A (en) * 1992-12-22 1994-07-15 Nippon Guriisu Nitsupuru Kk Tube type lever system one-hand liquid injection gun, tube type lever system one-hand grease gun, and grease cartridge
US5404967A (en) * 1993-05-14 1995-04-11 Barry; Hubert M. Extruding device
CN1062346C (en) * 1996-06-03 2001-02-21 程豹 Self-sucking grease high effective oil ejector adapting sealed oil tank
US5826753A (en) * 1997-11-04 1998-10-27 Mcneil (Ohio) Corporation Grease gun locking mechanism

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EP0968386A2 (en) 2000-01-05
WO1998043012A2 (en) 1998-10-01
JP3981767B2 (en) 2007-09-26
ATE204971T1 (en) 2001-09-15
ES2163276T3 (en) 2002-01-16
WO1998043012A3 (en) 1998-12-10
US6467579B1 (en) 2002-10-22
EP0968386B1 (en) 2001-08-29
JP2001520730A (en) 2001-10-30
AU734817B2 (en) 2001-06-21
CA2284568A1 (en) 1998-10-01
AU7637598A (en) 1998-10-20

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