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:
Dec. 08, 1998
Filed:
Nov. 08, 1996
Richard L Ledebuhr, Haslett, MI (US);
Gary R Van Ee, Williamston, MI (US);
Board of Trustees of Michigan State University, E. Lansing, MI (US);
Abstract
A multiple channel peristaltic metering pump includes a base having a pair of spaced apart bearings, a rotor supported on the base and an occlusion member. The rotor includes a rotation shaft in the bearings and a plurality of rollers mounted thereon. A pair of occlusion rings, which are located concentrically with the rotation shaft by the bearings, position the occlusion member with respect to the rollers. Each of the rollers is rotated about a bearing which is located in an opening having sufficient size to allow expansion of lubricant under high operating temperatures. A hose expansion space adjacent the rotor takes up any elongation of the hoses in order to avoid crimping. Hose spacers in the expansion space prevent hose creep along the rotor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile