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. 01, 1976
Filed:
Jul. 08, 1974
Applicant:
Inventor:
Kunio Arisaka, Urawa, JA;
Assignee:
Copal Company Limited, , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354234 ; 354 50 ; 354247 ;
Abstract
An opening and closing means for electric shutters comprising a single actuating member capable of controlling, during its movement in one direction, both of opening and closing of shutter blades for the purpose of providing a shutter of simple construction and low cost. Said electric shutter comprises a release member capable of keeping a power switch in closed state during operation of the shutter, said release member being locked in the position where it is released by said actuating member.