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:
Sep. 16, 1997
Filed:
Dec. 27, 1995
Applicant:
Inventors:
Assignee:
Copal Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ; G03D / ;
U.S. Cl.
CPC ...
396567 ; 396599 ; 396613 ; 396620 ; 396622 ; 83367 ; 83373 ;
Abstract
In a film feeder for use in an automatic developing machine, a cutter control circuit actuates a cutter using electrical energy from a utility power source and electrical energy stored in a capacitor if a film end sensor detects the tail end of a film during normal feeding conditions. In the event that the film end sensor detects the tail end of the film in the event of a power failure, the cutter control circuit actuates the cutter using the electrical energy stored in the capacitor. This makes it possible to actuate the cutter even in the event of a power failure as well as to reduce the capacitance of the utility power source to a small level.