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Publication numberUS926197 A
Publication typeGrant
Publication dateJun 29, 1909
Filing dateAug 29, 1908
Priority dateAug 29, 1908
Publication numberUS 926197 A, US 926197A, US-A-926197, US926197 A, US926197A
InventorsGeorge E Kim
Original AssigneeGeorge E Kim
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Water-bag syringe.
US 926197 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

G. E. KIM.





Specification of Letters Patent.

Patented June 29, 1909,

AppIie' :lon filed AizgustkB, 1908. Serial No. 450,826.

To all whom it may concern:

Be it known that I, GEORGE E. Knu, a citi zen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Water-Bag Syringes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to syringes, and its principal object is to provide a fountain syringe that can be used to give a continuous ravity flow; or, cutting off such gravity ow, the syringe can be used to give a strong pressure-actuated or force flow.

The invention embodies a suitable reservoir, in practice a susponsible rubber bag, having connected thereto a discharge tube unobstructed throughout itsbore by valves or other obstructions, and provided at its lower end with a discharge nozzle. Connected into the discharge tube intermediate its ends is a by-pass provided between such points of connection with an elastic pressureulb the inlet and outlet ofwhichare controlled by valves removable with the bulb. Intermediate its opposite points of connection to the pressure by-pass, the discharge tube is rovided with a tube-compressing clamp. ith this construction, a copious gravity flow is obtained, owing to the absence of obstructions throughout the bore of the dischar e tube. At times, however, an abundant ow under pressure is desirable. To obtain this, the tube-compressing-clam on the discharge-tube opposite the bymssis closed, thus cutting oli completely all dischar e from the water-bag except that whic passes through the pressure bulb and is subjected to prcssure'thcrcin.

Another object of my invention is to arrange the interior valves of the by-pass so that they are removable, if desired, with the pressure-bulb.

Referring to the accompanying drawing, which forms a part of this specification, Figure 1 is an elevation of a fountain syringe embodying this invention, showing the bypass, its pressure-bulb and the adjacent portion of the discharge-tube in section. Fig. 2 is a longitudinal section showing the syringe as when used to give a pressure-actuated discharge, the gravity discharge having been cut off.

1 denotes a reservoir, preferably a rubber water-bag adapted to be suspended from a suitable support, and to the reservoir is suitably connected it compressible dischargetube 2, of rubber or other suitable material, 'wvhich terminates in a discharge nozzle 3.

The pressure-means, connected into the discharge-tube intermediate its ends, cou1- prises an elastic prcssure-bulb 4 having endbulb is connected to an inlet tube 7 and an outlet tube 8, these tubes communicating with the discharge-tube 2 to form a byass therefor through the pressure bulb. he end connections 5 and (i are each prcferabl composed of separable sections, one of which is detachably engaged by an end of the bulb and the other is likewise engaged by a tube of the byass; and each cud-connection houses a valve 9 or 10 and provides a seat therefor, the valve 9 being the inlet valve and the valve 10 the outlet valve.

A tube-compressing clamp 11 is applied to the discharge tube 2, intermediate its points of communication with the by-pass; and a similar clam 12 is preferably applied to the discharge tube below its junction with the outlet tube 8. The clamps 11 and 12 may be of the ty 0 shown, wherein oppositely disposed resl ient jaws straddle a portion of the by being forced together by a cam-lever carried by one of the jaws; or they may be of other suitable type.

The discharge tube 2, intcrnnaliate its connections with the pressure byass, is preferably separable, being united iiynsuitable union or coupling 13, one advantage of which is that it provides for the easy disposition of the clamp 11 upon the discharge tube.

The operation of the syringe, stated generally, is as follows: li a gravity [low be desirod the clamp 11 is left 0 )9, the discharge tube thus forming an uno strurtcd channel through which the liquid in the water-bag l discharges. [fa rcssuredischarge or forceflow be desired, tlic clamp 11 is closed, cutting off all discharge from the reservoir cxccpt through the pressure bulb 4, and itwill be seen that all liquid passing from the re onvoir is now subjected to the pressure of the bulb, giving an abundant discharge under pressure, as represented in Fig. 3. The inlet valve 9 permits the llow of water from the tube 7 into the )ressurc, bulb, but prevents a reverse flow; hrewisc the outlet valve 10 connections 5 and (j by means of which the tube and are adapted to compress the tubc jot -"Wster hack Wound minimize the Y permits an outflow from the pressure bulb into-the tube 3, but preve its a reversai of such flow. The closing of the discharge-tube by the clamp 11 revents the pressure discharge 05?. the bulb f o" '1 a. column of fthe 1 be 2 which x, r discharge :is an outlet other than a onghv the discharge nozzle would be thus formed, and such upvrerdiy forced eoinrnn of Water would inter- 78333 with. s plTd. feeding of the pressureoulb. The bottom clamp 12 may be-used to compress thedisoherge tube and prevent the outflow of Water when the syringe 18 not in has described my invention, What E is 1. In a syringe, the combination with e of e discharge-tube connected thereto, s 'f y--pass communicating at its opieosite ends with the disohsrge-tube intermetiiete its ends, a pressurebuih connected in the by-pass, and means operable to close the discharge-tube intermediate its points of communication with the by-pass when using the syringe to obtain a, pressure discharge.

' In a syringe, the eombination with a reservoir, of an unobstructed discharge-tube connected thereto, said discharge tube having s bypass, mportion of the by-poss being removable and containing a pressure-bulb and an inlet valve and an outlet valve for the pressure bulb, both valves closing under pressure in the direetionof the reservoir, and clamp-means operable to compress the dis ehsrge-tube to close it opposite the by-pass when using the syringe to obtain a pressure discharge.

In testimony whereof I affix my signature,

in presence of two Witnesses.


Witnesses GEORGE A. DEPP, Josnr'n BUMBO

Referenced by
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Cooperative ClassificationA61M5/1424