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:
Sep. 27, 1977
Filed:
Jan. 13, 1976
Irving Laskin, Sharon, MA (US);
David Van Allen, Malden, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A pair of meshing gears, having unique tooth profiles, are provided in a separable gear train which is usable in a self-developing camera to couple a motor in one housing section of the camera to at least one of a pair of pressure-applying rollers mounted on a second camera housing section that is pivotally coupled to the first section for movement between positions blocking and unblocking access to a film container receiving section in the first housing section. The pair of gears have a speed ratio of other than 1:1 and equal tip spacing to facilitate bringing the pair of gears into operative mesh when the second housing section is moved to the operative blocking position.