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:
Jul. 20, 1993
Filed:
Apr. 24, 1990
Applicant:
Inventors:
Robert Lewis, Waukegan, IL (US);
Thomas Lillegard, Crystal Lake, IL (US);
Assignee:
Clintec Nutrition Co., Deerfield, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
141 83 ; 141 94 ; 604254 ; 417 33 ; 251-9 ;
Abstract
A system for sensing fluid conduit occlusion that reacts to occlusion force applied by changing the state of a switch only if a predetermined minimum force has been applied through the conduit. The system includes a contact member arm that cooperates with a force sensitive plunger to engage or separate a pair of contact members in response to application of a minimum force to the plunger. The plunger is positioned within a sensor gap through which the conduit extends.