Film packet holder improvement

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G03B 1726

Patent

active

049948350

ABSTRACT:
A packet for daylight-handling of photosensitive film and a cooperating holder mountable on a camera back. The packet has film removably attached to a carrier. The carrier has an asymmetrical tab at one end and a transverse light-locking element at its opposite end. Telescopically receivable over the carrier and film is a light-shielding envelope. The envelope has an open end that is closable by engagement with the light-locking element and a closed end with a squeezable area that overlies and, when grasped, squeezes the tab, to prevent inadvertent separation of the envelope from the carrier. An adjacent area, not overlying the tab, is graspable for pulling the squeezable area free of the tab and the envelope away from the film, to permit intended exposure. The envelope also has, near its open end, a stop strip for limiting envelope movement. The packet is slidably insertable into, and withdrawable from, the cooperating holder, which includes a spring-loaded pressure-applying member for maintaining the film in an exposure plane, a spring-loaded blocking member engageable with the light-locking element to retain the carrier in place, a pair of spring-loaded arresting members engageable by the stop strip to limit envelope movement while the carrier is retained, and a releasing member that is manually actuable for negating the spring-loadings on the pressure-applying, blocking, and arresting members, to permit unrestricted withdrawal of the packet from the holder.

REFERENCES:
patent: 3053160 (1962-09-01), Bachelder et al.
patent: 3319555 (1967-05-01), Jennings et al.
patent: 4725865 (1988-02-01), Hoffman
patent: 4821055 (1989-04-01), Loose et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Film packet holder improvement 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 packet holder improvement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film packet holder improvement will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1147092

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.