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Publication numberUS730054 A
Publication typeGrant
Publication dateJun 2, 1903
Filing dateMar 11, 1903
Priority dateMar 11, 1903
Publication numberUS 730054 A, US 730054A, US-A-730054, US730054 A, US730054A
InventorsJohn H Sheets
Original AssigneeJohn H Sheets
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Syringe.
US 730054 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

t PATENTED' JUNE 2, `1903.

, J'. E. lSHEETS.

SYEINGE.

APPLICATION FILED MAB. 11,' 1903.

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UNITED STATES Patented June 2, 1903.`

JOHN H. SHEETS, OF NEW YORK, N. Y.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 730,054, dated June 2, 1903.

Application filed March l1, 1903. Serial No. 147,254. (No model.)

The invention relates vto syringes of the barrel-and-piston type; and-its object is to provide a new and improved. syringe arranged to permit of conveniently. filling the barrelewith the desired fluid and carrying the filled syringe about in a pocket, case, or the like and to allow the user to eject any desired portion of the fluid and safely retain the remainder of the fluid in the barrel for future The invention consists of novel features and parts and combinations of the same, as will be more fully'described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar' characters of reference indicate oorresponding parts in all the views.

Figure lis a sectional side elevation of the improvement, arranged for filling the barrel with a fuid. Fig. 2 is a like view of the same, showing the parts in position when a portion of the fluid is to be divided pff. Fig. -3 is a D, mounted to slide in a suitable bearing formed in a cap E, screwed or otherwise secured to the rear end of the barrel A. The outer end of the piston-rodD is provided with a suitable handle DT, adapted to be taken hold of by the operator for moving the piston C lengthwise in the barrel and for allowing the operator to turn the piston-rod in the pis- Fig-4L is a similar ton C, for the purpose hereinafter more fully described.

The inner end of the piston-rod D is provided with a fixed head D2, fitting a co'rrespondingly-shaped recess in the outer face of the piston C, so that when the piston-rod D is drawn Arearward the piston C is carried along in the same directionthat is, toward the cap E.

On the piston-rod D, adjacent to the inner face of the piston C, is secured a pin D3, adapted to abut against spaced shoulders C and Cformed onthe inner face of the said pistonv C, so that when the piston-rod D is pushed inward the pinD3 carries the piston C along, so that the latter is moved outward in the barrel. The pin D3, in addition to the function mentioned, serves to limit the turning motion of the piston-rod D in the piston C by the pin alternately abuttingagainst the said shoulders C and C2, as indicated in Figs. 3 and 4.

Thel piston-rod D is made hollow and provided Within theV piston C with a transverse partition D4, preferably standing at an angle to the axis of the piston-rod, as plainly l shown in Figs. l and 2. The partition D4 forms two passages D5 and D6 in the said piston-rod D, and the passage D5 opens into theforward nozzle or discharge end of the barrel A, while Athe other passage D6 connects with the atmosphere by aport D7 in the outer end of the piston-rod adjacent to the handle D.

In the Wall of the piston-rod D, opposite thesides of the partition'Dl, are arranged ports D8 and D9, adapted to register with a port O3, formed in the piston C and opening into theV storage or rear end of the 'barrel A,

.it being understood that when the port D8 registers with the port O3 (see Fig. 2) then connection is established between the forward and rear ends of thebarrel A by way of the passage D5 and the said registering ports D8 O3, so that the iiuid can pass from one end of the barrel'to 'the other on moving the piston correspondingly. When the several partsare in this position, then the pin D3 abuts against the shoulder C2', as indicated in Fig. 4. When the piston-rodD is turned in the piston C to the position shown in Figs. l and 3, then the port D9 is moved into register withthe port O3,

lOO

so that the rear end of the barrel is connected with the atmosphere by way of the said registering ports C3 D, passage D, and the port D7.

The operation is as follows: When the several parts are in Athe position shown in Fig. l and the nozzle B is immersed in a fluid contained in a suitable vessel and the operator draws the piston-rod D outward, then the fluid is drawn into the barrel from the said vessel by way' of the nozzle B, and at the same time air in the rear end oi' the barrel A escapes from the latter by way of the registering ports C3 D9, passage D6, and port D7. 'Vhen the piston C has reached the rear end of the barrel A and the forward end thereof is completely filled with the fluid, then the operator moves the syringe into a reverse position to bring the nozzle B upward and then turns the piston-rod D to the position shown in Figs. 2 and 4 and then pushes the pistonrod D to cause the piston C to travel from the rear end of the barrel toward the nozzle B, and in doing so lthe fluid in front of the piston passes by way of the passage D5 and the registering ports D8 C3 into the rear end of the barrel. \Vhen the piston reaches the outer end of its stroke, then the operatorturns the piston-rod D to an intermediate position, so that both ports D0 and D8 are cut off from the port C3, and the fluid is now safely stored in the barrel A, as it cannot escape to the nozzle B nor to the rear end of the hollow piston C. The operator can now conveniently carry the syringe in a pocket, Satchel, or other receptacle without danger ot' spilling the fiuid stored in the barrel A. When it is desired to use a portion of the l'uid stored in the barrel A, then the operator turns the piston-rod D to the position shown in Figs. 2 and t, so that the ports D8 and C3 register with each other, and then draws the piston D outward, so that the portion of the stored fluid can liow from the rear endof the barrel A by way of the registering ports C3 and DS and the passage D5 into the front end of the barrel A, and when the desired quantity of fluid has passed into this front end of the barrel then the operator ,turns the piston-rod R to the position shown in Figs. l and 3 and then pushes the piston-rod D outward to cause the piston C to eject the iiuid in front of the piston through the nozzle B to the desired place. When the fluid has been ejected, then the piston D is again turned to an intermediate position, as previously explained, and the remaining fluid in the barrel A is kept therein until another ejection is to be made. The above-described operation is then repeated.

From the foregoing it will be seen that when the fluid is stored in the barrel A, as described, the piston C is in the forward end of the barrel A, and consequently the handle D of the piston-rod extends from the cap E, so that the syringe takes up comparatively little room.

Suitable packing devices may be employed for the piston C to prevent leakage between the piston and the barrel, and also suitable packings C4 may be employed between the piston-rod D and the piston, and in this case I prefer to use tubular cork packings G4, as indicated in Fig. 5.

If desired, an extra set of ports may be provided in the piston and pistonrod D, as shown at the upper left-hand portion in Fig. 5, to form the desired air-passage to the outer air. f Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A syringe comprising a barrel, a piston movable therein, and a piston-rod connected with the said piston, to move the latter lengthwise in the barrel and allow of turning the piston-rod in lthe barrel, the said piston-rod and piston having ports adapted to register, to connect the nozzle end of the barrel with the rear or storage end and to connect the latter with the atmosphere, as set forth.

2. A syringe comprising a barrel, a piston movable therein and provided at the inner end with a port opening into the rear or storage end of the barrel, and a hollow pistonrod connected with the piston, to move the latter in the barrel and allow of turning the piston-rod in the piston, the said piston-rod havinga transverse partition and ports on opposite sides of the partition, adapted to register with the said piston-port, as set forth.

3. A syringe comprising a barrel, a piston movable therein and provided at the inner end with a port opening into the rear or storage end of the barrel, and a hollow pistonrod connected with the piston, to move the latter in the barrel and allow of turning the piston-rod in the piston, the said piston-rod having a transverse partition and ports on opposite sides of the partition, adapted to register with the said piston-port, the partition being set at an angle to the axis of the pistonrod, as set forth.

4. A syringe comprising a barrel, a piston movable therein, a hollow piston-rod connected with the said piston, to move the latter lengthwise in the barrel and to allow of turning the piston-rod in the barrel, the said piston-rod and piston having ports adapted to register, and to connect the nozzle end of the barrel with the rear or storage end, and to connect the latter with the atmosphere, and means for limiting the turning motion of the piston-rod on the piston, as set forth.

5. A syringe comprising a barrel, a piston movable therein and provided at the inner end with a port opening into the rear or storage end of the barrel, and a hollow piston-rod connected with the piston, to move the latter in the barrel and to allow of turning the piston-rod in the piston, the said piston-rod having a transverse partition and ports on opposite sides of the partition, adapted to register with the said piston-port, one end of the ICO TIO

hollow piston-rod opening into the discharge sides of the partition, adapted to register or nozzle end of the barrel and the other or with the said piston-port, and means'for limouter end openinginto the air, as set forth. iting the turning motion of the said piston- 6. A syringe comprising a barrel,v a piston rod in the piston, as set forth. I5 5 movable therein and provided at the inner In testimony lwhereof I have signed my end with a port opening into the rear orstornaine to this specification in the presence of age end of the barrel, a hollow piston-rod contwo subscribing witnesses. neeted with the piston, to move the latter in JOHN H.'SHEETS. the barrel and to allow of turning the piston- Witnesses: f xo rod in the piston, the said piston-rod having THEO. G. HOSTER,

a transverse partition and ports on opposite v EVERARD BOLTON MARSHALL.l

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4551135 *May 19, 1982Nov 5, 1985Sterling Drug Inc.Syringe for extrusion of semi-plastic material
US5047015 *Nov 13, 1989Sep 10, 1991Merit Medical Systems, Inc.Locking syringe
US5057078 *Mar 17, 1989Oct 15, 1991Merit Medical Systems, Inc.Locking syringe
US5135488 *Mar 17, 1989Aug 4, 1992Merit Medical Systems, Inc.System and method for monitoring, displaying and recording balloon catheter inflation data
US5163904 *Nov 12, 1991Nov 17, 1992Merit Medical Systems, Inc.Syringe apparatus with attached pressure gauge
US5201753 *Mar 4, 1991Apr 13, 1993Merit Medical Systems, Inc.Totally self-contained, digitally controlled, disposable syringe inflation system, and method for monitoring, displaying and recording balloon catheter inflation data
US5209732 *Mar 4, 1991May 11, 1993Merit Medical Systems, Inc.Locking syringe with thread-release lock
US5259838 *Jun 18, 1992Nov 9, 1993Merit Medical Systems, Inc.Syringe apparatus with attached pressure gauge and timer
US5300027 *Mar 18, 1992Apr 5, 1994Merit Medical Systems, Inc.System and method for monitoring and displaying balloon catheter inflation and deflation data
US5385549 *Mar 4, 1993Jan 31, 1995Merit Medical Systems, Inc.Digitally controlled, disposable syringe inflation system, and method for monitoring, displaying balloon catheter inflation data
US5425713 *Apr 4, 1994Jun 20, 1995Merit Medical Systems, Inc.System and method for monitoring, displaying and recording balloon catheter condition interval and inflation location data
US5431629 *Apr 4, 1994Jul 11, 1995Merit Medical Systems, Inc.System and method for monitoring, displaying and recording balloon catheter condition interval data
US5449344 *Nov 5, 1993Sep 12, 1995Merit Medical Systems, Inc.Syringe apparatus with pressure gauge and detachable timer
US5449345 *Mar 30, 1994Sep 12, 1995Merit Medical Systems, Inc.Detachable and reusable digital control unit for monitoring balloon catheter data in a syringe inflation system
US5453091 *Apr 5, 1994Sep 26, 1995Merit Medical Systems, Inc.RF transmission module for wirelessly transmitting balloon catheter data in a syringe inflation system
US5458571 *Apr 4, 1994Oct 17, 1995Merit Medical Systems, Inc.System and method for monitoring, displaying and recording balloon catheter condition interval data
US5472424 *Apr 5, 1994Dec 5, 1995Merit Medical Systems, Inc.Syringe with volume displacement apparatus
US7635344May 21, 2007Dec 22, 2009Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7731678 *Sep 28, 2005Jun 8, 2010Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7731679May 21, 2007Jun 8, 2010Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7749189May 21, 2007Jul 6, 2010Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7753891May 21, 2007Jul 13, 2010Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7776011May 21, 2007Aug 17, 2010Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US7985211May 21, 2007Jul 26, 2011Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US8002737Sep 30, 2008Aug 23, 2011Hyprotek, Inc.Mixing/administration syringe devices, protective packaging and methods of protecting syringe handlers
US8137307Nov 9, 2006Mar 20, 2012Hyprotek, Inc.Syringe devices, components of syringe devices, and methods of forming components and syringe devices
US8231567May 21, 2007Jul 31, 2012Hyprotek, Inc.Syringe devices and methods for mixing and administering medication
US8512278Jul 15, 2011Aug 20, 2013Hyprotek, Inc.Mixing/administration syringe devices, protective packaging and methods of protecting syringe handlers
US8608686Feb 17, 2012Dec 17, 2013Hyprotek, Inc.Syringe devices, components of syringe devices, and methods of forming components and syringe devices
US20110257605 *Mar 28, 2011Oct 20, 2011Kloehn, Inc.Self-centering syringe assembly and centering syringe plunger guide
US20120085152 *Oct 7, 2010Apr 12, 2012Funk Donald AFluid analysis tool
Classifications
Cooperative ClassificationA61M5/31511