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:
Apr. 12, 2005
Filed:
Jun. 29, 2001
Brad E. Paden, Goleta, CA (US);
Jed C. Ludlow, North Salt Lake, UT (US);
Gill B. Bearnson, Salt Lake City, UT (US);
Brad E. Paden, Goleta, CA (US);
Jed C. Ludlow, North Salt Lake, UT (US);
Gill B. Bearnson, Salt Lake City, UT (US);
MedQuest Products, Inc, Salt Lake City, UT (US);
Abstract
A magnetic bearing system allows a movable body to be positioned to a point of substantial equilibrium in an axial direction after a system shutdown. A sensor measures the axial position of the movable body to produce an displacement output. That output is then adjusted to account for a sensor offset. The adjustment is stored and can be used to position the movable body during regular operation of the system or when the system reboots or restarts. The adjusted displacement output is converted into a force for positioning the movable body. The movable body may be a rotor in a heart pump apparatus.