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. 29, 1981
Filed:
Dec. 15, 1980
Vincent L Cocco, Wakefield, MA (US);
Richard R Wareham, Marblehead, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
Apparatus including a housing and a disposable film processing kit for processing an exposed roll of instant or self-developing type transparency film. The kit includes a roller supporting a coiled length of sheet material, a drum having one end of the sheet material attached thereto, and a processing composition dispenser located therebetween. The kit is adapted to be inserted into the housing, and an end of an exposed strip of film is threaded across a sprocket wheel and directed towards the drum. The sprocket wheel and the drum are driven in a direction so as to wind the film and sheet material upon the drum with a layer of the processing composition located therebetween. The drum is provided with a single resiliently mounted projection which is adapted to enter a sprocket hole in the film to facilitate the movement of the end of the film to a position between the spreader sheet and the drum.