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Publication numberUS383940 A
Publication typeGrant
Publication dateJun 5, 1888
Publication numberUS 383940 A, US 383940A, US-A-383940, US383940 A, US383940A
InventorsAlexandee W. Beinkeehoff
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Milfoed h
US 383940 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

w w A. W.. BRINKERH'OFF. Deod.

M. H. 8n W. G. BRINKERHOFF, Executors.

SYRINGB. Patented June 5, 1888.

ATTORNEYS.

INVENTOR K M/Z WITNESSES.

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UNITED STATES PATENT Orrics.

ALEXANDER W. BRINKERHOFF, OF UPPER SANDUSKY, OHIO; MILFORD H. BRINKERHOFF AND WILLIE O. BRINKERHOFF EXEGUTORS OF SAID ALEXANDER IV. BRINKERHOFF, DECEASED.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 383,940, dated June 5, 1888.

Application filed November 16, 1886. Serial No. 219,055. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER W. BRINK- ERHOFF, a citizen of the United States, and a resident of Upper Sandusky, in the county of 5 Wyandot and State of Ohio, have invented certain new and useful Improvements in Syringes; and I do 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 my invention appertains to make and 2Q sists in the construction and novel combination of parts, as hereinafter set forth and claimed. It is well known that syringes, as usually constructed, after considerable use, become comparatively worthless, for the reason that the rubber collar which is designed to force the leather valve outward becomes worn or loses its elasticity. To provide against this difficulty, I have arranged a groove in the rubber collar and have placed therein an open 0 yielding metal ring, which, when it becomes worn or otherwise becomes inoperative, may

be replaced by another. n

Referring by letter to the accompanying drawings, A designates the barrel of a syringe.

B is the piston, and'C a collar in which an enthe syringe.

circling groove, D, is made. In this groove D, I place an open yielding metal ring, E, which provides for the requisite resiliency between the leather L and the collar 0, and automatically forces the -leather L outwardlyagainst the inner periphery of the barrel of The collar 0 is slipped on the shouldered end of the piston-rod B, and the inner end of the piston-rod is shouldered and threaded to receive a circular nut, N, whichnut secures the collar 0 and leathers L L in place.

It is obvious that in case the metal ring E becomes worn or loses its elasticity by pro-' longed use a new ring can be substituted therefor, and thereby the syringe may be made 01 erative again at a trifling expense.

Having described my invention, what I claim, and desire to secure by Letters Patent,

In a syringe, the combination, with the barrel A, of the piston-rod having the shouldered and threaded inner end, the collar 0, having an encircling groove, the open yielding metal ring E within the encircling groove, the leathers L and L, and the circular locking-nut on the threaded inner end of the piston-rod, substantially as specified.

In testimony whereof I afiix my signature in presence of two witnesses.

ALEXANDER W. BRINKERHOFF. Witnesses:

' M. H. BRINKERHOFF,

W. F. PooL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4246898 *Jul 23, 1979Jan 27, 1981Cutter Laboratories, Inc.Syringe
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
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
Classifications
Cooperative ClassificationA61M5/31513