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. 15, 1990
Filed:
Jul. 12, 1988
Applicant:
Inventors:
Tsuyoshi Fukuda, Kanagawa, JP;
Fumio Shimada, Saitama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354246 ; 354249 ; 354250 ;
Abstract
A camera shutter has a shutter base plate for pivotally supporting blade groups each constituted by a plurality of blades carried by arms and a thick-walled portion formed on the surface of the shutter base plate that carries the blade groups. The thick-walled portion is formed in an area which excludes a pivoting area in which the arms make their pivotal motions and which is adjacent to the pivoting area. The shutter base plate and the thick-walled portion are integrally formed of a synthetic resin.