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:
May. 26, 1992
Filed:
Sep. 19, 1988
Applicant:
Inventor:
Marcus L Caldwell, Colorado Springs, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369266 ; 369263 ;
Abstract
A disk drive motor and spindle assembly includes a drive motor having a drive shaft defining an axis of rotation, a centering hub, and a flat spiral spring. The centering hub has a spherical disk-receiving surface section about a sphere center and a cavity extending therein from its lower edge. The spiral spring mounts the centering hub with respect to the drive shaft with the sphere center located on the axis of rotation and in the plane of the spring.
Caldwell, Marcus. (1992). Drive motor and spindle assembly for an optical disk drive (U.S. Patent No. 5117414). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5117414
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile