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:
Mar. 18, 1986
Filed:
Feb. 10, 1984
Applicant:
Inventor:
Carl F Fazekas, Tarzana, CA (US);
Assignee:
Panavision, Inc., Tarzana, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
352 / ; 352124 ; 352171 ; 352173 ; 352172 ;
Abstract
A film magazine is provided adapted for running the film stored therein either forward or backward. A first brake within the film magazine provides a drag torque on the supply hub when the supply hub rotates in the forward direction but not when it is rotating in a backward direction. In addition, a second brake is provided for exerting a drag torque on the take-up reel when the take-up reel is rotating in a backward direction, but not when it is running forward. The brakes and motors within the film magazine are adapted so as to keep tension on the film at all time.