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:
Feb. 28, 1978
Filed:
Jul. 21, 1976
Applicant:
Inventors:
Thomas J Persha, Juneau, WI (US);
David Jagielski, West Bend, WI (US);
Assignee:
Bell & Howell Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G11B / ; G03B / ;
U.S. Cl.
CPC ...
353 95 ; 226 92 ; 242195 ; 352158 ; 352230 ;
Abstract
A microfilm reader has a film transport mechanism driven by separate forward and reverse motors. When the forward motor first starts, power may be applied, via a one way clutch, to a capstan in order to automatically thread the film into the reader. A film gate opens as the film approaches it and thereafter closes, after the film is captured therein. A manual override gate control may prop the film gate open, if film is manually fed through the system.