Single use photographic film package and camera
AssigneeEastman Kodak Company
InventorsEdward N. Balling, David A. Hodder
Life of this patent
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AssigneeEastman Kodak Company
InventorsEdward N. Balling, David A. Hodder
Estimating the term…
A recyclable, single use photographic film package and camera comprising a light-tight camera mechanism having a frame forming exposure gate, a roll of unexposed film withdrawn from its cartridge and pre-wound on a film takeup spool disposed on one side of the exposure gate, the cartridge disposed on the other side of the exposure gate, and an externally operable film winding thumbwheel for winding the filmstrip through the exposure gate and back into its cartridge as the film is exposed frame by frame. When all frames are exposed, the exposed film is removed and processed, and the package is recycled by substituting a fresh film cartridge and new packaging for resale. To prevent unauthorized reuse of the camera mechanism by refilling it with other than genuine film, a component of the takeup spool is intentionally damaged upon winding the last image frame into the film cartridge. The damaged takeup spool is not usable to pre-wind the substitute filmstrip onto it and must be replaced by an authorized recycler of the film package.
A recyclable, single use, photographic film package of the type having a camera mechanism fitted with a lens, a shutter release, a film advance mechanism, and containing an unexposed filmstrip attached to a film cartridge, wherein the filmstrip is pre-wound out of the film cartridge and in a roll around a takeup spool positioned on one side of an exposure gate and extends to the film cartridge disposed on the other side of the exposure gate, and wherein the film advance mechanism is operable to advance the filmstrip past the exposure gate after operation of the shutter release to make an exposure through the lens successively until all image frames of the filmstrip are exposed and advanced back into the film cartridge, wherein the improvement in said takeup spool comprises:
A lens-fitted photographic film package having an externally operable shutter member for effecting an exposure of a filmstrip image frame in an exposure gate and an externally operable film advance member for advancing to the next exposure frame after making an exposure comprising:
Dependencies are inferred from the claim text.