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. 10, 1991
Filed:
Mar. 08, 1990
John J Niedospial, Rochester, NY (US);
Christopher P McCormick, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
In a film cassette, a spool core is supported for rotation in an unwinding direction to thrust a leader section of a filmstrip coiled about the spool core through a film passageway to the exterior of the cassette. A pair of flanges are arranged in spaced relation along the spool core to overlie opposite longitudinal edges of the filmstrip to radially confine the filmstrip. The flanges are adapted to permit the longitudinal film edges to force the flanges farther apart to allow the filmstrip to escape the confinement of the flanges to permit the leader section to the thrust outside the cassette. According to the invention, the leader section is relieved to permit its forward edge to be thrust clear of a light-trapping means in the film passageway before the longitudinal film edges begin to force the flanges apart, whereby when the spool core is rotated in the unwinding direction any resistance the light-trapping means and the flanges present to film movement is more easily overcome.