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. 31, 1979
Filed:
Oct. 11, 1977
Ferdinandus A Pieters, Walnut Creek, CA (US);
Micropump Corporation, Concord, CA (US);
Abstract
One of two permanent magnets used to drive pumps and the like is split--i.e., the annular permanent magnet is split into two annular members, one fixed to one of the rotating members, the other freely rotatable independent of the other. The structure provides for recoupling without having to stop the driving magnet when decoupling has occurred. It also provides free travel and/or dynamic damping to alleviate oscillation and sporadic decoupling. The member fixed for rotation is a permanent magnet; the other is preferably a permanent magnet but may also be of a material which is magnetically permeable, in which case damping only is accomplished.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile