WO1996022940A1 - Glue gun system with removable cartridges - Google Patents

Glue gun system with removable cartridges Download PDF

Info

Publication number
WO1996022940A1
WO1996022940A1 PCT/IB1996/000225 IB9600225W WO9622940A1 WO 1996022940 A1 WO1996022940 A1 WO 1996022940A1 IB 9600225 W IB9600225 W IB 9600225W WO 9622940 A1 WO9622940 A1 WO 9622940A1
Authority
WO
WIPO (PCT)
Prior art keywords
glue
cartridge
barrel
gun
gun system
Prior art date
Application number
PCT/IB1996/000225
Other languages
French (fr)
Inventor
Len Massena
Original Assignee
Len Massena
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Len Massena filed Critical Len Massena
Priority to AU48415/96A priority Critical patent/AU4841596A/en
Publication of WO1996022940A1 publication Critical patent/WO1996022940A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
    • B05C17/00526—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application

Definitions

  • the present invention relates to a multi-purpose glue gun system having a removable
  • the system allows the glue gun to accept different
  • the system allows the cartridges to be held in a heating stand
  • Glue guns are used in the manufacture of textile products.
  • the gun accepts a solid glue insert and melts one end of the insert.
  • the melted glue can be controUably discharged from one end of the glue gun through a tip.
  • the glue gun also has a handle to facilitate its handling by an
  • second solution involves dispensing the second color of glue onto a waste sheet until the residual
  • Standard glue guns demonstrate several other problems. For instance, a significant delay
  • glue guns are typically structured
  • Glue sticks can come in various diameters and lengths. Also, the tips of the glue gun are rarely more than an orifice through which the glue flows. In the
  • Such a glue gun should also be able to accept various colors of glue stick without the risk of residual glue spoiling the next color. Further, a need exists for a glue gun with a tip
  • the present glue gun system is a flexible system capable of handling a variety of glue stick
  • the glue gun system includes a gun having a barrel.
  • a cartridge can be removably placed in the barrel.
  • the cartridge has an open central passage to accept a glue stick and a tip to dispense the glue. Once received into the barrel the cartridge is heated, melting the glue therein. Additional cartridges can be maintained in a heated state by a heating stand.
  • the cartridges can be sized to accept smaller
  • a standard cartridge can be downsized with an insertable adapter.
  • An extended length holder can also be attached to the gun to feed an extended length of glue
  • the cartridges can have specialized tips designed to manipulate the glue after it has been dispensed.
  • the heating elements can be placed in either the cartridge or the gun itself. In the
  • the cartridge acts as an interchangeable heating element. When one element burns
  • Figure 1 is a perspective view of a glue gun embodying the present invention accepting a glue stick in a cartridge;
  • Figure 2 is a perspective view of a first heating stand to accept unused cartridges, thereby keeping them heated for use;
  • Figure 3 is a perspective view of a second heating stand
  • Figure 4 is an extended length glue stick cartridge which contains a spiral wrapped length
  • FIGS. 5a to 5d illustrate various cartridges having specialized tips.
  • the present glue gun system overcomes many of the disadvantages found in the prior art.
  • a glue gun 100 which embodies the present invention.
  • the gun 100 has a barrel 102 connected to a handle 104.
  • a trigger 106 is pivotally attached to the
  • the barrel 102 is generally hollow and accessible by opening an upper lid 110.
  • the lid 104 pivots along hinge 134. Once closed, the lid is secured by placing the clasp 120 over the lip 122.
  • the barrel has a front opening
  • the barrel has a rear opening defined by surfaces 130
  • a cartridge 200 can be received into the opened barrel 102.
  • the cartridge has a tip 202
  • the cartridge also comprises a generally cylindrical hollow body 204 with an enlarged diameter portion 206.
  • the enlarged diameter portion 206 can closely match the inner diameter of the barrel.
  • a conductor 212 attached to the cartridge body 204 is inserted into slot 126 within the
  • the conductor 212 can serve two functions. In one embodiment, a heating element
  • heat from the heating element 1 18 is conducted to the cartridge by conductor 212.
  • an electrical connection is provided in the
  • the resistive heating element is contained within the cartridge 200.
  • an insulated tab 210 is provided to the cartridge allowing it to heat.
  • an insulated tab 210 is provided to the cartridge allowing it to heat.
  • the cartridge also contains a sleeve 208.
  • a glue stick is inserted into the sleeve 208 and advanced into the cartridge body 204 where it is rendered into a viscous fluid state by heating.
  • the stick 10 is advanced into the sleeve by gripper 108 when the trigger 106 is compressed.
  • the gripper can advance the glue stick to the sleeve. Once the end of the glue stick has entered the sleeve, another glue stick must be loaded.
  • a second cartridge can be used.
  • the first cartridge prevented any melted glue from spoiling the inside of the barrel 102.
  • the second cartridge will perform in the same fashion as the first.
  • the second glue stick will be advanced in the same fashion.
  • Additional cartridges can be kept in a heating stand 300, shown in Figure 2.
  • the stand
  • the heating portion 304 has a base 302 and a heating portion 304 connected by posts 308.
  • the heating portion 304 can be any heating portion 304 connected by posts 308.
  • the heating portion 304 has a plurality of openings 306 for accepting the cartridges. Once inserted the cartridges are heated, keeping the glue in the
  • a work piece can be placed in the gap 310. If a glue stick 20 is pushed into the cartridge 200, glue will exit tip onto the work
  • the resistive heating element can be within the heated portion 304 and
  • a heating element can be placed within the cartridge
  • Figure 3 illustrates a second style of heating stand 350.
  • the stand has a base 352 which
  • a tray 354 has a plurality of grooves for accepting cartridges 200. Once set in the grooves, the cartridge is heated by a heating element in the base 352. Alternatively, the heating element can be placed in the cartridge. In this case, the cartridge engages leads in the grooves which connect the heating element in the cartridge to a source of electricity. In either
  • electricity can be supplied to the unit by cord 358.
  • Energy can be supplied by any combination
  • a heat shield 356 protects the user from the heated cartridges.
  • the glue gun system can also accept an extended length glue stick cartridge, shown in
  • the glue stick can hold a spiral of solid, yet flexible, glue 402 of lengths around six feet.
  • the glue stick can be provided with a suitable cross section to allow it to more easily be stored in a spiral.
  • the system can also be modified to accept smaller diameter sticks
  • the adapter can have a reduced diameter central passage for accepting the
  • the glue gun system also allows for a number of cartridges having specialized tips.
  • FIG. 5a illustrates a cartridge 410 having an extended narrow tip 412 which can dispense glue in hard
  • Figure 5b illustrates a cartridge 420 having a flattened tip 422, thereby allowing
  • FIG. 5c illustrates a cartridge 430 illustrates a glue gun cartridge 430 suitable for use with a stick of caulk, rather than glue.
  • Figure 5d illustrates a specialized cartridge that allows the glue gun system to double as a soldering gun.
  • the soldering tip cartridge 440 has an extended tip 442, but no internal passage
  • the cartridge body 444 simply accepts heat from the heating element and transmits that to the tip 442.
  • the heating element can be resident in the cartridge or in the barrel.

Abstract

The glue gun system includes a gun (100) having a barrel (102). A cartridge (200) can be removably placed in the barrel. The cartridge has an open central passage (204) to accept a glue stick (10) and a tip (202) to dispense the glue. Once received into the barrel the cartridge is heated, melting the glue therein. Additional cartridges can be maintained in a heated state by a heating stand (300). Thus, after one glue stick is used, a second can be immediately installed and used. An insulated tab (210) allows for the easy handling of the cartridges.

Description

GLUE GUN SYSTEM WITH REMOVABLE CARTRIDGES
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a multi-purpose glue gun system having a removable
cartridges and a heated stand. Specifically, the system allows the glue gun to accept different
sizes and colors of glue stick without spoiling the interior chamber of the gun with remnants of
glue from an earlier use. Moreover, the system allows the cartridges to be held in a heating stand
so each is ready for immediate use.
BACKGROUND OF THE INVENTION
Glue guns are used in the manufacture of textile products. The gun accepts a solid glue insert and melts one end of the insert. The melted glue can be controUably discharged from one end of the glue gun through a tip. The glue gun also has a handle to facilitate its handling by an
operator. While glue is typically clear, certain textiles are manufactured using a colored glue.
This poses a problem when switching between different glue sticks. For example, if the user has applied a blue colored glue and then wants to switch to a yellow glue, the residual of blue glue left in the glue gun will initially spoil the color of the yellow glue exiting the tip. One solution to
these problem is to have several glue guns, one devoted to each color glue to be dispensed. A
second solution involves dispensing the second color of glue onto a waste sheet until the residual
first glue has passed. Both solutions are wasteful and expensive and inadequate.
Standard glue guns demonstrate several other problems. For instance, a significant delay
occurs after a second glue stick is inserted until it melts. Also, glue guns are typically structured
to only accept one diameter of glue stick. Glue sticks can come in various diameters and lengths. Also, the tips of the glue gun are rarely more than an orifice through which the glue flows. In the
user wants to shape the glue of press it into a seem, the tip is invariably fouled. Another problem with existing glue guns relates to the heating unit. Once it burns out the gun is inoperative.
A need exists for a glue gun which can accept variably sized glue sticks including extra
long sticks. Such a glue gun should also be able to accept various colors of glue stick without the risk of residual glue spoiling the next color. Further, a need exists for a glue gun with a tip
designed to manipulate the glue after it has been dispensed. Also, a need exists for a glue gun which an interchangeable heating element. When one element burns out, another can be inserted.
Last, a need exists for a way of keeping the soon to be used glue sticks in a state virtually ready
for use, thus minimizing any down time while the glue stick is heated.
SUMMARY OF THE INVENTION
The present glue gun system is a flexible system capable of handling a variety of glue stick
colors, diameters and lengths. The glue gun system includes a gun having a barrel. A cartridge can be removably placed in the barrel. The cartridge has an open central passage to accept a glue stick and a tip to dispense the glue. Once received into the barrel the cartridge is heated, melting the glue therein. Additional cartridges can be maintained in a heated state by a heating stand.
Thus, after one glue stick is used, a second can be immediately installed and used. An insulated
tab allows for the easy handling of the cartridges. The cartridges can be sized to accept smaller
diameter glue sticks. Likewise, a standard cartridge can be downsized with an insertable adapter.
An extended length holder can also be attached to the gun to feed an extended length of glue
stick. The ability to replace cartridges allows the glue gun to accept various colors of glue stick without the risk of residual glue spoiling the next color.
The cartridges can have specialized tips designed to manipulate the glue after it has been dispensed. The heating elements can be placed in either the cartridge or the gun itself. In the
former case, the cartridge acts as an interchangeable heating element. When one element burns
out, another can be inserted.
BRIEF DESCRIPTION OF THE DRAWINGS
For a more complete understanding of the present invention, and for further details and advantages thereof, reference is now made to the following Detailed Description taken in
conjunction with the accompanying drawings, in which:
Figure 1 is a perspective view of a glue gun embodying the present invention accepting a glue stick in a cartridge;
Figure 2 is a perspective view of a first heating stand to accept unused cartridges, thereby keeping them heated for use; and
Figure 3 is a perspective view of a second heating stand;
Figure 4 is an extended length glue stick cartridge which contains a spiral wrapped length
of glue and an adapter; and
Figures 5a to 5d illustrate various cartridges having specialized tips.
DETAILED DESCRIPTION OF THE DRAWINGS
The present glue gun system overcomes many of the disadvantages found in the prior art.
Referring to Figure 1, a glue gun 100 is illustrated which embodies the present invention. The gun 100 has a barrel 102 connected to a handle 104. A trigger 106 is pivotally attached to the
handle such that compression of the trigger 106 advances a gripper 108. A stand 116 on the bottom surface of the barrel allows the gun to rest in a stable position. The barrel 102 is generally hollow and accessible by opening an upper lid 110. The lid 104 pivots along hinge 134. Once closed, the lid is secured by placing the clasp 120 over the lip 122. The barrel has a front opening
defined by surfaces 114 and 128. Likewise, the barrel has a rear opening defined by surfaces 130
and 132.
A cartridge 200 can be received into the opened barrel 102. The cartridge has a tip 202
with a front orifice 214. The tip of the cartridge extends beyond the surfaces 114 and 128. The cartridge also comprises a generally cylindrical hollow body 204 with an enlarged diameter portion 206. The enlarged diameter portion 206 can closely match the inner diameter of the barrel. A conductor 212 attached to the cartridge body 204 is inserted into slot 126 within the
barrel 102. The conductor 212 can serve two functions. In one embodiment, a heating element
1 18 is contained within the barrel. Heat is generated by a resistive heating element as is well
known in the art. In this embodiment, heat from the heating element 1 18 is conducted to the cartridge by conductor 212. In a second embodiment, an electrical connection is provided in the
barrel in place of the heating element. In this embodiment, the resistive heating element is contained within the cartridge 200. When the conductor 212 is inserted into the slot 126, current
is provided to the cartridge allowing it to heat. In either embodiment, an insulated tab 210 is
provided for the user to grasp when withdrawing the cartridge 200 from the barrel 102. The cartridge also contains a sleeve 208. A glue stick is inserted into the sleeve 208 and advanced into the cartridge body 204 where it is rendered into a viscous fluid state by heating. The stick 10 is advanced into the sleeve by gripper 108 when the trigger 106 is compressed.
Advancing the glue stick into the sleeve forces the melted glue in the cartridge body 204 to exit
through the tip 202 and orifice 214. The gripper can advance the glue stick to the sleeve. Once the end of the glue stick has entered the sleeve, another glue stick must be loaded.
If the second glue stick is a different color than the first, a second cartridge can be used.
The first cartridge prevented any melted glue from spoiling the inside of the barrel 102.
Therefore, a second cartridge containing a second glue stick can be easily inserted into the clean
interior of the barrel. The second cartridge will perform in the same fashion as the first.
Likewise, the second glue stick will be advanced in the same fashion.
Additional cartridges can be kept in a heating stand 300, shown in Figure 2. The stand
has a base 302 and a heating portion 304 connected by posts 308. The heating portion 304 can
be spaced from the base by a gap 310. The heating portion 304 has a plurality of openings 306 for accepting the cartridges. Once inserted the cartridges are heated, keeping the glue in the
cartridge body 204 in a liquid state. The glue tends not to drip from the tip because the glue stick
is not advanced into the cartridge. However, for certain applications, a work piece can be placed in the gap 310. If a glue stick 20 is pushed into the cartridge 200, glue will exit tip onto the work
piece. As described earlier, the resistive heating element can be within the heated portion 304 and
the heat conducted to the cartridge. Alternatively, a heating element can be placed within the
cartridge 200. In this embodiment, current is conducted into the cartridge by the leads within the opening 306. In either case, the cartridge and glue is kept in a heated state to minimize any down
time experienced when switching between glue sticks. Figure 3 illustrates a second style of heating stand 350. The stand has a base 352 which
sets on a surface. A tray 354 has a plurality of grooves for accepting cartridges 200. Once set in the grooves, the cartridge is heated by a heating element in the base 352. Alternatively, the heating element can be placed in the cartridge. In this case, the cartridge engages leads in the grooves which connect the heating element in the cartridge to a source of electricity. In either
case, electricity can be supplied to the unit by cord 358. Energy can be supplied by any
appropriate source. A heat shield 356 protects the user from the heated cartridges.
The glue gun system can also accept an extended length glue stick cartridge, shown in
Figure 4. Most glue sticks are a relatively short, six to eight inches in length. The cartridge 400
can hold a spiral of solid, yet flexible, glue 402 of lengths around six feet. The glue stick can be provided with a suitable cross section to allow it to more easily be stored in a spiral. A forward
tab 404 of the cartridge 400 is accepted between rear surfaces 130 and 132. The glue stick is
advanced by grippers 108. The system can also be modified to accept smaller diameter sticks
using adapters 406. The adapter can have a reduced diameter central passage for accepting the
smaller diameter glue sticks.
The glue gun system also allows for a number of cartridges having specialized tips. Figure
5a illustrates a cartridge 410 having an extended narrow tip 412 which can dispense glue in hard
to reach places. Figure 5b illustrates a cartridge 420 having a flattened tip 422, thereby allowing
the user to flatten the glue from a thin bead into a flat bed Figure 5c illustrates a cartridge 430 illustrates a glue gun cartridge 430 suitable for use with a stick of caulk, rather than glue. Caulk
sticks perform in the same way as glue sticks, but require a bigger orifice 432 to properly flow. Figure 5d illustrates a specialized cartridge that allows the glue gun system to double as a soldering gun. The soldering tip cartridge 440 has an extended tip 442, but no internal passage
to accept a glue stick. The cartridge body 444 simply accepts heat from the heating element and transmits that to the tip 442. With any of the cartridges described above, the heating element can be resident in the cartridge or in the barrel.
Although preferred embodiments of the invention have been described in the foregoing
Detailed Description and illustrated in the accompanying drawings, it will be understood that the
invention is not limited to the embodiments disclosed, but is capable of numerous rearrangements,
modifications, and substitutions of parts and elements without departing from the spirit of the
invention. Accordingly, the present invention is intended to encompass such rearrangements,
modifications, and substitutions of parts and elements as fall within the scope of the invention.

Claims

I CLAIM:
1 A glue gun system for dispensing glue comprises:
(a) a gun having a barrel;
(b) a cartridge for accepting a glue stick, wherein said cartridge is received within said
barrel; and (c) means to heat said cartridge.
2. The glue gun system of Claim 1 wherein said cartridge comprises:
(a) a generally cylindrical body having a central passage; and
(b) a conductor extending from the body.
3. The glue gun system of Claim 2 wherein said cartridge further comprises:
(c) an insulated tab extending from said body.
4. The glue gun system of Claim 2 wherein said conductor conducts heat from a heating
element in said gun.
5. The glue gun system of Claim 2 wherein said conductor conducts electricity from a source
in said gun to a heating element in said cartridge.
6 The glue gun system of Claim 1 further comprises (d) a heating stand having a plurality of openings for accepting a cartridge after removal from the glue gun and having a means to heat said cartridges.
7. The glue gun system of Claim 6 wherein said means to heat comprises a resistive heating
element in said stand.
8 The glue gun system of Claim 6 wherein said means to heat comprises means to conduct
electricity from said stand to a heating element in said cartridge.
9. The glue gun system of Claim 2 wherein said cartridge further comprises;
(c) a tip having an orifice in fluid connection with the central passage; and
(d) a extension from said tip.
0. A heated gun system comprising:
(a) a gun having a barrel;
(b) a cartridge received within said barrel; wherein said cartridge has a tip; and
(c) means to heat said cartridge and tip.
PCT/IB1996/000225 1995-01-25 1996-01-18 Glue gun system with removable cartridges WO1996022940A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48415/96A AU4841596A (en) 1995-01-25 1996-01-18 Glue gun system with removable cartridges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/377,842 US5664701A (en) 1995-01-25 1995-01-25 Glue gun system with removable cartridges
US08/377,842 1995-01-25

Publications (1)

Publication Number Publication Date
WO1996022940A1 true WO1996022940A1 (en) 1996-08-01

Family

ID=23490723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/000225 WO1996022940A1 (en) 1995-01-25 1996-01-18 Glue gun system with removable cartridges

Country Status (4)

Country Link
US (4) US5664701A (en)
EP (1) EP0723818A3 (en)
AU (1) AU4841596A (en)
WO (1) WO1996022940A1 (en)

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US5769272A (en) 1998-06-23
US5988445A (en) 1999-11-23
AU4841596A (en) 1996-08-14
EP0723818A2 (en) 1996-07-31
US5664701A (en) 1997-09-09
EP0723818A3 (en) 1997-03-19
US5779103A (en) 1998-07-14

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