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:
Jan. 18, 1994
Filed:
Jul. 15, 1992
Applicant:
Inventors:
William M Dunbar, Cottage Grove, MN (US);
Lynn R Skow, North Branch, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369266 ; 360 9908 ;
Abstract
A drive system for rotating a disk includes a housing having a planar element with a working surface which includes a spindle which facilitates rotational movement of the disk relative to the drive assembly. A plurality of orifices extend through planar element at an acute angle relative to the working surface and are arranged in a circular array. A conduit assembly delivers fluid to the housing. The fluid exits through the orifices outlets to provide a motive force for rotating the disk around the spindle, while also providing a pressure differential to support the medium.