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:
Feb. 16, 1982
Filed:
Sep. 17, 1979
Lawrence R Hogan, Lake Ville, IL (US);
Cole-Parmer Instrument Company, Chicago, IL (US);
Abstract
A peristaltic pump having a nonmetallic housing supporting an internal rotor which carries compression rollers for cooperation with a compressible flow tube looped internally of the housing so as to effect a peristaltic pumping action on the tube during rotation of the rotor. The rotor is of unitary construction and is made from a nonmetallic material. The rotor contains hub projections which are directly journaled within bearing surfaces formed within the housing, and rotatably suports at least one nonmetallic compression roller through a tubular open ended metal support shaft which enables air flow through the support tube to provide improved heat transfer during operation.