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:
Dec. 21, 1976
Filed:
Jan. 31, 1973
Earl Chamberlin, Santa Cruz, CA (US);
Other;
Abstract
A video film projector has a pin registration transport mechanism which employs inherent spring means in a loop of film to advance the film, and a synchronizing shutter to inhibit projection of light during transport of the film. The shutter comprises a rotating arcuate member rotatable to interrupt a light path of the projector, and an eccentric spindle rotatable with the shutter member and adapted to engage the film to `trigger` transport in synchronization with shuttering. The projector also includes a unique film guide construction for self-threading of the projector, a co-axial film reel mounting and driving mechanism, and a film storage cartridge which includes a mechanism for retaining the free end of the film strip in proper orientation for self-threading of the projector.