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:
Apr. 17, 1979
Filed:
Jan. 13, 1977
Applicant:
Inventors:
Delmar R Johnson, Barrington, IL (US);
Thomas R Wells, Des Plaines, IL (US);
Assignee:
Bell & Howell Company, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 23 ; 353 / ; 353 95 ; 353121 ;
Abstract
A roll film reader/printer transports film to a selected photographic area. Transparent areas are also left at any one or more selected locations on the roll film. When it is necessary or desirable to read an image on a separate and discrete film, 'card', the roll of film is transported through the reader/printer in order to display a transparent area. There, the separate and discrete film 'card' is manually inserted into the reader/printer, over the transparent area on the roll film. Suitable interlock switches disable the roll film transport mechanism while the manually inserted film is in the reader/printer.