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.

Date of Patent:
Nov. 04, 1980

Filed:

Oct. 16, 1978
Applicant:
Inventor:

Lawrence R Hogan, Lake Villa, IL (US);

Assignee:

Cole-Parmer Instrument Company, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417477 ;
Abstract

A peristaltic pump is disclosed which includes a base plate having a pair of reaction members pivotally mounted thereon for movement between open positions spaced outwardly from a rotor about which a compressible flow tube is disposed and closed positions maintaining the flow tube in predetermined relation to the rotor. Each reaction member has a shield plate thereon adapted for cooperation with the shield plate on the other reaction member so as to substantially cover the rotor area when the reaction members are in their closed positions. A locking nut mounted on the base plate is adapted for camming cooperation with the reaction members to draw them into predetermined closed relation relative to the tube and rotor.


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