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:
Jun. 21, 2005
Filed:
Feb. 28, 2003
Applicant:
Akihiro Sawada, Matsumoto, JP;
Inventor:
Akihiro Sawada, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L041/083 ; H01L041/047 ;
U.S. Cl.
CPC ...
Abstract
A diaphragmis fixed to a base plateby a screw. A leverhas a spring member, a rotor-fixing member, and an insertion holeformed therein. By passing a shaftthrough the insertion hole, the leveris turnably supported so as to turn about its own axis. In a state in which the spring memberabuts against an eccentric pressure-adjusting cam, a pressing force for urging the diaphragmvia the rotoris adjusted by turning the pressure-adjusting camso as to change an elastic force of the spring member