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. 18, 1991
Filed:
Mar. 13, 1990
Applicant:
Inventor:
Samuel Meiri, Skokie, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417477 ;
Abstract
A peristaltic pump which corrects the effects of creep on a peristaltic tube. A plurality of spring biased rollers apply a substantially constant force to pinch the tube. A pair of elastic semi-circular sections are retained throughout the entire semi-circular back wall of the peristaltic pump. The pair of elastic semi-circular sections fully restore the initial cross-section of the tube in the area of the race where the rollers are not pinching the tube.