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:
Aug. 03, 1976
Filed:
Feb. 26, 1975
Carl Koch, Stetten, CH;
Karl Gfeller, Schaffhausen, CH;
Sinar AG Schaffhausen, , CH;
Abstract
An electrically controlled shutter device for a photograhic camera. The shutter device includes a shutter element which is mounted for movement for opening and closing a light admitting aperture of the camera. A drive mechanism causes the movement of the shutter element between its respective positions. An external trigger control provides for initiation of the opening and closing of the aperture during the exposure operation. A position monitoring mechanism is associated with the shutter element for providing a signal in dependence upon the shutter element being located in a predetermined position. A control mechanism is coupled to the output of the position monitoring mechanism and controls the operation of the shutter device as a function of the signal provided by the position monitoring mechanism and as a function of the signals from the external trigger control.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile