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:
Feb. 12, 1980
Filed:
Nov. 06, 1978
Irving Erlichman, Wayland, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A photographic film assemblage including a film cassette for housing a battery and a plurality of sheet-like members including several film units. A wall of the cassette is provided with a pair of apertures to enable a pair of contacts in a camera to electrically engage the terminals of the battery. An elongate strip of dielectrical material having a pair of openings therein has one of its ends attached to the last of the sheet-like members to be removed from the film cassette and the pair of holes located between and in alignment with the battery terminals and the pair of apertures. The elongate strip follows the last sheet-like member as it is removed from the film cassette during an exposure cycle thereby moving the pair of openings out of alignment with the battery terminals and the apertures while simultaneously moving a portion of the dielectric material between the battery terminals and the pair of apertures to electrically insulate the battery from the contacts. Alternative embodiments of the invention are also disclosed.