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. 11, 1976
Filed:
Jul. 17, 1974
Applicant:
Inventors:
Carl Koch, Stetten, CH;
Karl Gfeller, Schaffhausen, CH;
Assignee:
Sinar AG Schaffhausen, Feuerthalen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354255 ; 354250 ; 354252 ; 354256 ; 354258 ;
Abstract
A shutter device for a photographic camera has a pair of shutter blade members movable between first and second rest positions for opening or closing the camera aperture, including drive devices associated with the blade members for moving them in the same direction during an exposure sequentially and at a time interval, from the first to the second rest position. Additional drive devices associated with the shutter blade members are provided which, for a subsequent exposure, are capable of returning the blade members sequentially and at a time interval, in opposite direction, from the second to the first rest position.