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. 21, 1989
Filed:
Apr. 25, 1988
Applicant:
Inventor:
Roger D Peters, San Francisco, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
279-4 ; 74110 ; 269 481 ; 279 / ; 279 / ; 346137 ; 360 9912 ; 369271 ;
Abstract
A clamp for supporting a plate such as a memory disk which comprises a housing with a supporting surface in contact with one side of the plate surface and a mechanism for applying a segmented ring to the second side of the plate surface and a fluid pressure means within said housing to apply a large clamping pressure.