Film cassette with protruberance on film leader to position lead

Details Film cassette with protruberance on film leader to position lead Film cassette with protruberance on film leader to position lead

1991-04-11

1992-02-18

Perkey, W. B.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 711, G03B 1726

Patent

active

050898370

ABSTRACT:
In a film cassette, a spool is supported for rotation in an unwinding direction inside a cassette shell, a convoluted film roll whose outermost convolution is a film leader is coiled about the spool, and a film stripper is located substantially adjacent a passageway to the exterior of the shell to be received between a leading end of the film leader and a next-inward convolution of the film roll responsive to rotation of the spool in the unwinding direction to divert the leading end into the passageway. According to the invention, a protuberance projects from the film leader to lie against the next-inward convolution in order to hold the leading end of the film leader and the next-inward convolution apart to generally ensure the stripper will fit between the leading end and the next-inward convolution.

REFERENCES:
patent: 3690451 (1972-09-01), Nerwin
patent: 4445768 (1984-05-01), Gold
patent: 4883239 (1989-11-01), Nieduspial

Affiliated with

Also associated with

Rating

Film cassette with protruberance on film leader to position lead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Film cassette with protruberance on film leader to position lead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film cassette with protruberance on film leader to position lead will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1826568