One-time-use camera with anti-backup pawl engaging film winder r

Details One-time-use camera with anti-backup pawl engaging film winder r One-time-use camera with anti-backup pawl engaging film winder r

1999-01-21

2000-04-11

Lee, Eddie C.

Photography

Disposable or recyclable camera

396395, 396396, 396411, 396538, G03B 1702, G03B 100

Patent

active

060496754

ABSTRACT:
A subassembly for a one-time-use camera includes a main body part that has a film take-up chamber adapted to receive a film spool and a film supply chamber for an unexposed film roll, a film winding thumbwheel supported for winding rotation in engagement with the film spool to similarly rotate the film spool to take up an exposed filmstrip, and an anti-backup pawl engageable with the thumbwheel to prevent unwinding rotation of the thumbwheel and disengageable from the thumbwheel to allow unwinding rotation of the thumbwheel to permit the film spool to be similarly rotated to unwind a fresh exposed filmstrip from the film spool to form the unexposed film roll. The film take-up chamber is configured to allow the film spool to be received in the film take-up chamber in a film unwinding position for unwinding rotation of the film spool and a different film winding position for winding rotation of the film spool. The anti-backup pawl has an actuator which when actuated disengages the anti-backup pawl from the thumbwheel and which is located in the film take-up chamber to allow the film spool when received in the film take-up chamber in the film unwinding position to actuate the actuator to disengage the anti-backup pawl from the thumbwheel, but not when the film spool is received in the film take-up chamber in the film unwinding position.

REFERENCES:
patent: 554769 (1896-02-01), Brownell
patent: 579949 (1897-04-01), Brownell
patent: 1050785 (1913-01-01), Austin et al.
patent: 1144267 (1915-06-01), VanSickle et al.
patent: 4991786 (1991-02-01), Cloutier et al.
patent: 5063400 (1991-11-01), Takei et al.
patent: 5202713 (1993-04-01), Nakai et al.
patent: 5329330 (1994-07-01), Sakai et al.
patent: 5349410 (1994-09-01), Kamata
patent: 5453804 (1995-09-01), Norris et al.
patent: 5471270 (1995-11-01), Balling
patent: 5517270 (1996-05-01), Balling
patent: 5550608 (1996-08-01), Smart et al.
patent: 5555055 (1996-09-01), Stephenson, III
patent: 5579070 (1996-11-01), Smart et al.
patent: 5581316 (1996-12-01), Kamoda et al.
patent: 5581321 (1996-12-01), Boyd
patent: 5608485 (1997-03-01), Kataoka et al.
patent: 5634160 (1997-05-01), Lee
patent: 5682570 (1997-10-01), Wakabayashi
patent: 5689745 (1997-11-01), Zander et al.
patent: 5761542 (1998-06-01), Lamphron et al.
patent: 5802401 (1998-09-01), Sangregory et al.

Affiliated with

Also associated with

Rating

One-time-use camera with anti-backup pawl engaging film winder r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with One-time-use camera with anti-backup pawl engaging film winder r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-time-use camera with anti-backup pawl engaging film winder r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1183230