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:
Nov. 21, 1978
Filed:
Jan. 03, 1977
Richard R Wareham, Marblehead, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A camera for use with self-developing film exposes, advances and processes film selected from one of two supplies at either of two exposure locations. Each film supply feeds exposed film to a set of three processing or spread rollers mounted at a corner of the camera housing. One roller is common to processing paths for both film supplies. Selection of one of the film supplies for exposure also selects the direction of rotation of a reversible motor that drives the common roller. When the film supplies are cassettes of card-like, self-contained film units, the reversible motor also drives a pair of pick arms that advance film units from the selected cassette to an associated pair of the processing rollers. The pick arms are mounted and linked to the reversible motor so that the direction of rotation automatically drives the 'selected' pick arm to engage and advance the exposed film unit towards its processing rollers while driving the 'non-selected' pick arm to avoid engagement with the non-selected film unit.