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. 25, 1979
Filed:
Feb. 02, 1978
Applicant:
Inventors:
Carl Koch, Stetten, CH;
Rolf Meyer, Schaffhausen, CH;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354159 ;
Abstract
The apparatus includes an image field limiting frame and at least one movable mask for the purpose of varying picture size in a line parallel to the direction of film travel and means to control film transport steps proportional to the picture window left open by the mask. It also includes means to directly transport the film in either the forward or reverse direction during picture size adjustment so that the forward edge of the film matches the forward edge of the picture window. In this manner, it is possible to execute picture size changes at anytime, even after operation of the film transport, without waste of film or overlap of sequential pictures.