Apparatus and system for cleaning pressure applying members
AssigneePolaroid Corporation
InventorJohn B. Morse
Life of this patent
Estimating the term…
Abstract
There are provided a method, system, and apparatus for automatically cleaning a spread roller system for use in a photographic apparatus of the self-developing type. A cleaning apparatus includes a pod of cleaning fluid rupturable as it passes through a nip of a pair of spread rollers. The cleaning apparatus includes at least an opening which distributes the cleaning fluid over the rollers following pod rupture as the apparatus passes through the nip. Such an apparatus can be included in a film assemblage which comprises a film cassette housing a stack of film units of the self-developable type, wherein the cleaning apparatus is at the top of the stack and is opaque so as to also serve as a dark slide.
Claims17
Apparatus for cleaning a pressure applying roller assembly;
- said apparatus comprising:
- a body portion;
- a reservoir of cleaning fluid connected to said body portion which is rupturable by passing through a nip of a pressure applying roller assembly;
- said body portion including means for distributing said cleaning fluid from said ruptured reservoir onto the roller assembly as the roller assembly advances said cleaning apparatus between the nip;
- said distributing means includes a pair of juxtaposed and spaced apart fluid impervious membranes;
- at least a discharge opening in each of said membranes;
- said membranes being constructed for allowing said cleaning fluid to pass from said reservoir to said openings;
- and a pair of spaced apart fluid absorbing and porous sheets which sandwich said pair of membranes therebetween, said sheets being able to apply said cleaning fluid from said discharge openings to the roller assembly.
Apparatus for cleaning a pressure applying roller assembly;
- said apparatus comprising:
- a body portion;
- a reservoir of cleaning fluid connected to said body portion which is rupturable by passing through a nip of a pressure applying roller assembly;
- said body portion including means for distributing said cleaning fluid from said ruptured reservoir onto the roller assembly as the roller assembly advances said cleaning apparatus between the nip wherein said distributing means includes a stop adjacent a trailing edge of said body portion.
A photographic film assemblage comprising:
- a cassette including an exit slot;
- a cleaning apparatus included in said cassette and being ejectable from slot to a pair of spread rollers so that the cleaning apparatus can pass through the nip of the spread rollers;
- said cleaning apparatus including a body portion;
- a reservoir of cleaning fluid connected to said body portion and which is rupturable by passing through a nip of a pressure applying roller assembly;
- said body portion including means for distributing said cleaning fluid from said ruptured reservoir onto the roller assembly as the roller assembly advances said cleaning apparatus between the pressure nip defined thereby:
- wherein said distributing means includes a stop adjacent a trailing edge of said body portion.
Dependencies are inferred from the claim text.