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公开(公告)号：CA2031107A1
公开(公告)日：1991-09-09
申请号：CA2031107
申请日：1990-11-29
Applicant: NIEDOSPIAL JOHN J , MCCORMICK CHRISTOPHER P
Inventor： NIEDOSPIAL JOHN J , MCCORMICK CHRISTOPHER P
Abstract: In a film cassette (1), a spool core (23) is supported for rotation in an unwinding direction to thrust a leader section (37) of a filmstrip (F) coiled about the spool core through a film passageway (25) to the exterior of the cassette. A pair of flanges (41, 43) are arranged in spaced relation along the spool core (23) to overlie opposite longitudinal edges (53, 55) of the filmstrip (F) to radially confine the filmstrip. The flanges (41, 43) are adapted to permit the longitudinal film edges (51, 53) to force the flanges farther apart to allow the filmstrip (F) to escape the confinement of the flanges to permit the leader section (37) to be thrust outside the cassette (1). According to the invention, the leader section (37) is relieved (53', 55') to permit its forward edge (63) to be thrust clear of a light-trapping means (31) in the film passageway (25) before the longitudinal film edges (53, 55) begin to force the flanges apart, whereby when the spool core (23) is rotated in the unwinding direction any resistance the light-trapping means and the flanges present to film movement is more easily overcome.
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公开(公告)号：CA1284911C
公开(公告)日：1991-06-18
申请号：CA539750
申请日：1987-06-16
Applicant: NIEDOSPIAL JOHN J
Inventor： NIEDOSPIAL JOHN J , MULLER BRUCE R
Abstract: IMPROVED PHOTOGRAPHIC CASSETTE AND METHOD OF DISPENSING An improved photographic cassette in which the plate and screen adjacent the front cover on the tube side of the cassette is unsecured to the front cover: that is, free floating, thereby achieving more uniform sheet-to-plate contact throughout the entire area of the sheet. The cassette also has a pressure plate and means forming a part of the pressure relieving means for engaging and holding the floating plate against the front cover upon actuation of the cassette p¢ressure relieving means. The floating plate engaging and holding means facilitates separation of the pressure and floating plates and unblocking of the cassette entry slot by the floating plate to allow a sheet to freely enter the slot.
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公开(公告)号：CA2027525A1
公开(公告)日：1991-09-09
申请号：CA2027525
申请日：1990-10-12
Applicant: NIEDOSPIAL JOHN J
Inventor： NIEDOSPIAL JOHN J
Abstract: In a film cassette, a spool core (23) is supported for rotation in an unwinding direction (U) to thrust a leader section (35) of a film roll (33) coiled about the spool core to the exterior of the cassette and in a winding direction (W) to return the leader to the interior of the cassette. A pair of flanges (41, 43) are arranged in spaced relation along the spool core (23) to radially confine the leader (35). The flanges (41, 43) are adapted to be flexed apart to permit the leader (35) to readily escape the confinement of the flanges when the spool core (23) is rotated in the unwinding direction (U). According to the invention, the leader (35) has respective edge portions (53', 55') for flexing the flanges (41, 43) apart in succession when the spool core (23) is rotated in the unwinding direction (U), whereby the leader can more easily overcome any resistance the flanges may present to movement of the leader outwardly of the flanges.
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