Spring devices – Bendable along flat surface
Patent
1996-07-12
1997-10-14
Butler, Douglas C.
Spring devices
Bendable along flat surface
267164, 267180, F16F 118
Patent
active
056763549
ABSTRACT:
A sheet film pack has a pack housing containing a plurality of sheet film units in a stack therein, a lid slidable relative to the pack housing to open or close an open top of the pack housing, and a plate spring mounted on an inner bottom surface of the pack housing to urge the stack of sheet film units toward the open top. Each sheet film unit consists of a sheet of photographic film and a plastic film sheath backing and fringing the sheet film. The plate spring has a pair of arched arms which extend parallel to each other along side zones of a bottom one of the sheet film units, such that peak areas of the arms contact the bottom sheet film unit at positions within 15 mm from side edges of the sheet film unit.
REFERENCES:
patent: 2639139 (1953-05-01), Carlson
patent: 2772086 (1956-11-01), Foster
patent: 2820625 (1958-01-01), Davis
patent: 2866648 (1958-12-01), Parsons
patent: 2876891 (1959-03-01), Long et al.
patent: 3059500 (1962-10-01), Schneiter
patent: 3207546 (1965-09-01), Ernest
patent: 4269400 (1981-05-01), Jensen
patent: 4693027 (1987-09-01), Wolff, Sr. et al.
patent: 4761701 (1988-08-01), Oishi
patent: 4883261 (1989-11-01), Zamitter
patent: 4909275 (1990-03-01), Massey et al.
patent: 5094434 (1992-03-01), Ryu
patent: 5106586 (1992-04-01), Muszak et al.
patent: 5116699 (1992-05-01), Miyajima
patent: 5199554 (1993-04-01), Kano et al.
patent: 5213314 (1993-05-01), Kano et al.
patent: 5226634 (1993-07-01), Rudy, Jr. et al.
patent: 5448324 (1995-09-01), Okano et al.
Fukugawa Masafumi
Hara Yoshio
Okada Katsumasa
Okutsu Taro
Butler Douglas C.
Fuji Photo Film Co. , Ltd.
LandOfFree
Sheet film pack does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sheet film pack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet film pack will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1549639