The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1983
Filed:
Nov. 28, 1980
Applicant:
Inventors:
Carl W Tretinyak, Rochester, MN (US);
Thomas A Burton, Rochester, MN (US);
Assignee:
Waters Instruments, Inc., Rochester, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604220 ;
Abstract
A syringe having a barrel and a plunger moveable axially in the barrel is provided with locking means for locking the plunger to the barrel. The locking means includes cam means carried between the barrel and the plunger, and means for moving the cam into a position forcing the plunger into binding contact with the barrel.