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. 06, 1978
Filed:
Sep. 20, 1976
Applicant:
Inventor:
Marvin I Mindell, Pittsford, NY (US);
Assignee:
The Singer Company, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
242 711 ; 242197 ; 352 / ;
Abstract
A filmstrip cartridge for use with a complimentary filmstrip projector includes a hood hinged to a film containing housing. The cartridge features spring means to maintain the film in a coiled state during winding and unwinding, a force biased closure means, a film guide channel defined between the hood and the housing having friction reducing means to insure reliable film movement, and an optional positive film movement lock to prevent inadvertant film removal.