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. 26, 1989
Filed:
Dec. 18, 1987
Applicant:
Inventor:
Albert K Saiki, Los Angeles, CA (US);
Assignee:
Panavision, Inc., Tarzana, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
352216 ; 352210 ; 352211 ;
Abstract
A shutter system for a movie camera or the like which controls the exposure of film including a main shutter wheel rotatably mounted on an axis and first and second adjustable shutter wheels positioned adjacent to and coaxially rotating therewith. The first and second adjustable shutter wheels may selectively pivot relative to the main shutter wheel in opposite angular directions so as to close off a portion or all of the arcuate apertures within the main shutter wheel.