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Publication numberUS659470 A
Publication typeGrant
Publication dateOct 9, 1900
Filing dateJun 6, 1900
Priority dateJun 6, 1900
Publication numberUS 659470 A, US 659470A, US-A-659470, US659470 A, US659470A
InventorsAnton C Eggers
Original AssigneeGoodyear S India Rubber Glove Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 659470 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Pat ented Oct. 9, I900. A. c, EGGERS.

SYBINGE (Application filed huge 6, 1900.)




SPECIFICATION forming part of Letters Patent No. 659,470, dated October 9, 1900.

Application filed June 6, 1900.

To aZZ whom it may concern.-

Be it known that I, ANTON O. EGGERS, a citizen of the United States, residing in the city of New York, borough of Brooklyn, State of New York, have invented certain new and useful Improvements in Syringes, of which the following is a specification.

This invention relates to an improved syringe of that class in which a compressible 1o bulb is used for pumping the liquid through the nozzle of the syringe. Heretofore the bulb was connected with valves at both ends and connected directly with a flexible tube leading to the sinker and a flexible tube lead- :5 ing to the nozzle. This was attended with some inconvenience in manipulating the bulb.

My invention is designed to furnish a more convenient syringe in which the manipulation of the bulb is facilitated and a regular pumping action is kept up in a reliable manner.

The invention consists of a syringe in which the elastic bulb is provided with a single opening connected with a T-shaped connectingpiece, in which two valves are arranged, one

for the inlet-tube and the other for the nozzletube, said double-valved T-shaped piece permitting the arrangement of the bulb at one side of said tubes, and thereby the more con- 0 venient handling of the bulb.

In the accompanying drawings, Figure 1 represents a side elevation of my improved syringe. Fig. 2 is an enlarged central longitudinal section through the detachable T- 5 shaped piece connecting the bulb with the flexible tubes leading to the sinker and nozzle, respectively; and Fig. 3 is avertical transverse section on line 3 3, Fig. 2.

Similar letters of reference indicate corresponding parts.

. Referring to the drawings, Arepresents a bulb which is made of elastic material and closed with the exception of asingle opening Ct, which receives a nipple b of a T-shaped connecting-piece B, which is provided at opposite ends with two additional nipples 1) b the nipple 1) connecting with a preferablyfiexible tube C, leading preferably to the sinker D, While the opposite nipple b is connected by a preferably-flexible tube C with the nozzle E,as shown in Fig.1. The T-shaped Serial No, 19,236. (No model.)

con necting-piece is composed of a center portion b which is made integral with the nipple b and which is provided with a central channel I), communicating with the nipples b 12 and a channel 6 at right angles thereto passing through the nipple binto the bulb A. The central portion 79 of the T-shaped piece B is provided with short exteriorly-threaded ends or necks b 19 to (which the interiorlythreaded nipples b b are screwed home against the center portion 17 Leather or other washers ware interposed between the nipples 1/11 and the center portion 6 as shown in Fig. 2. The tubular neck b connecting with the nipple b, is provided with radial slits s of considerable depth, while the short tubular neck that forms connection with the nipple 6 is provided with a transverse pin 19. The slits s of the tubular neck 5 are for the purpose of permitting the water to pass through the same when the inlet-valve F, which is smaller in diameter than the valvechamber, is opened under the suction of the bulb A, so that the liquid can pass through the sinker D and flexible tube C into the bulb during the expansion of the same. The inlet-valve F is located on a seat fof the nipple 1), its stem extending into the nipple, while the head of the valve presses on the slitted face of the short tubular neck I), when the liquid is sucked around the valve into the bulb. The outlet-valve F is located near or adjacent to the valve-chamber in the short tubular neck b its stem being located in the connecting-channel b of the center piece 5 When the bulb is compressed, the liquid in the same is forced through the channel I) of the nipple b and the central channel 19 of the center piece 19 around the valve F, which is smaller in diameter than the valve-chamber, and is pressed against the diametrical retaining-pin p and through the nozzle to the place of use.

The operation of my improved syringe is as follows: \Vhen the bulb is compressed, the inlet-valve F is closed and the outlet-valve F opened. Under the expansion of the bulb the suction in the same causes the liquid to be lifted through the sinker and flexible tube C, so as to open the inlet-valve F and permit the liquid to pass into the bulb. The next 2 eta 76 compression of the bulb presses the inlet'valve to its seat, so as to interrupt the flow of liquid through the same, and forces the liquid in the bulb through the outlet-valve F and flexible tube 0' and nozzle to the place of use. This alternating action of the valves is repeated, and thus the effective Working of the syringe kept up.

The T-shaped piece B by which the bulb is connected with the flexible tubes connecting the sinker and nozzle, together with the two inlet and outlet valves in the same, permits the arrangement of the bulb at right angles to the connecting-piece sidewise of the tubes, so that the syringe can be worked with much greater convenience than when the bulb is located in line with the flexible supplytubes and is connected at opposite ends with the same. manipulation of the syringe, as it brings the bulb within convenient reach for the proper working of the syringe.

As the valves are located in the connecting-piece the construction of the bulb of the syringe is greatly simplified, while the valves This is a great advantage in the.

are Within easy reach for cleaning or repair ing and reassembling.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is

A T-shaped connecting-piece for a syringe, the same consisting of a center portion having a nipple extending at right angles therefrom, short exteriorly-threaded tubular necks at opposite ends of said center portion, one of said necks being provided with radial slits extending from the bore to the outside of the neck, and the other with a valve-retaining device, nipples, interiorly threaded, screwed onto said necks, an inlet-valve in the inletnipple, and an outlet-valve in the opposite neck, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3245597 *May 13, 1963Apr 12, 1966Kopernak Rudy LDesoldering tool
US4921488 *Jan 15, 1988May 1, 1990Maitz Carlos AAspirator device for body fluids
Cooperative ClassificationA61M5/1424