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:
Nov. 24, 1992
Filed:
Nov. 26, 1990
Toshiharu Kogure, Narashino, JP;
Seiko Seiki Kabushiki Kaisha, , JP;
Abstract
A clamp mechanism for disks is provided with a clamp body having a reference surface for use in fixing a disk thereon, a plurality of claws adapted to press the disk, which is placed on the reference surface of the clamp body, against the same reference surface and fix the same thereon, a plurality of clamp members which have the claws attached thereto, and which are adapted to be moved vertically in the interior of the clamp body, and cams adapted to turn the clamp members in the radial direction of the disk while the clamp members are vertically moved, in such a manner that the claws come toward one another or go farther away from one another. Each of the claws is formed generally to the shape of a fan. Therefore, the clamp portions of the claws which contact the disk, can press about 70-80% of the total area of the circumferential portion of the central hole in the disk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile