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:
Jun. 01, 1993
Filed:
Nov. 19, 1991
William J Greene, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Film unwinding apparatus is to be used with a film spool having a hook that extends substantially in a film winding direction of rotation of the spool and through a hole in a trailing end portion of a filmstrip to engage the trailing end portion to prevent it from being pulled off the spool. The unwinding apparatus is adapted to pull the filmstrip off the film spool in a way that makes the spool rotate with the filmstrip in a film unwinding direction. A weighted body is connected to the film spool to be rotated by the spool in the film unwinding direction as the filmstrip is pulled off the spool. This allows the weighted body to provide a momentum to rotate the film spool relative to the trailing end portion in the film unwinding direction when the filmstrip except for the trailing end portion has been pulled off the spool, to back the hook out of the hole to allow the trailing end portion to be pulled off the spool without ripping the filmstrip.