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...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

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Class 396/584 - Removable or variable pressure roller or particular roller texture, composition, configuration, or spacing


Subclass of Class 396 - Photography
Definition: Subject matter in which a roller may be readily inserted
No. of patents: 21
Last issue date: 02/26/2008


NumberTitleIssue Date
7334489Dual rate force transducer
A dual rate force transducer is disclosed. A spring is machined to have a first spring portion with a first spring rate, a second spring portion with a second spring rate, and a platen between the spring portions. A pair of flanges are affixed to the distal ends of ...
02/26/2008
7241253Fuser roll with improved heating performance
A roll cover particularly suitable for a fuser roll has an intermediate layer on the roll body and an outer surface layer including heat transfer bodies therein. The intermediate layer is a graphite sheet having legs extending along the axial extent of the roll body...
07/10/2007
7147596Low-mass roller or pulley
A low-mass roller is disclosed comprising a cylindrical body formed of polymeric material and having an exterior surface, first and second open ends and defining an interior tubular space along a longitudinal axis therethrough for receiving an axle; and an outer she...
12/12/2006
6963392Image-forming device having a belt type processing member with micro-features
An image-forming device comprises a rotating belt that includes a plurality of micro-members. The micro-members are preferably spherical members or hook and loop members. The rotating belt having the micro-members thereon is adapted to contact microencapsulated medi...
11/08/2005
5674653Test pouch
Method and an apparatus for measuring the development parameter of a light-sensitive fluid in a white-light environment. The apparatus comprises first and second flexible light-impervious sheets superimposed and sealed together to form a pouch containing ...
10/07/1997
5089838Pressure developing device
In a pressure developing device employed in an imaging device like a duplicating machine, an optical printer etc., pressure force for evenly pressurizing a recording medium is capable of being varied in accordance with the width of the recording medium to...
02/18/1992
5029310Pressure developing device
In a pressure developing device, employed in an image recording unit, including a pair of pressure developing rollers for pressurizing a material on which a visible image is to be developed through elastic springs, provided are backup rollers arranged to ...
07/02/1991
4945374Pressure developing device
In a pressure developing device employed in an imaging device like a duplicating machine, an optical printer etc, pressure force for pressurizing a recording medium is capable of being varied in accordance with the width of the recording medium to be pres...
07/31/1990
4914463Development of imaging sheets employing photosensitive microcapsules
In an apparatus for developing a picture on a sheet of developing paper from an exposed sheet of photo-sensitive material by pressing together the sheets of developing paper and photo-sensitive material, and in which such sheets in contact with each other...
04/03/1990
4872032Image fixing device
An image fixing device comprises a supporting platform for supporting thereon a recording sheet on which a provisional image is formed, one or more of rollers adapted to roll over the surface of the recording sheet in a direction substantially transversel...
10/03/1989
4864343Pressure development roll for imaging sheets employing photosensitive microcapsules
A pressure roll is disclosed particularly for fixing and developing sheet material which is treated by passing through a high pressure nip defined by a pair of the rolls. The roll includes a support shaft and a cylindrical roll body secured to the shaft. ...
09/05/1989
4738525Transparency film assemblage and roller assembly for use therewith
A transparency film assemblage having a film frame of the instant or self-developing type and a roller assembly specifically adapted for use with the assemblage during the spreading of a processing liquid between an emulsion side of the film frame and a s...
04/19/1988
4734729Studded squeegee roller
An improved squeegee roller particularly suited for use in an instant camera has a texture formed by stud-like bumps. A complex contour is provided to the roller by varying the heights of the bumps along the roller surface. In a method and apparatus for p...
03/29/1988
4727392Pressure development apparatus for imaging sheets employing photosensitive microcapsules
Methods and apparatus for pressure developing imaging sheets are described. In a three roll embodiment, first and second rolls are journaled into a housing to form a nip for rupturing microcapsules on the surface of an imaging sheet as it is passed throug...
02/23/1988
4568167Film processing roller assembly
A film processing roller assembly wherein the gap spacing between the film processing rollers is initially automatically increased to accommodate the insertion of a positive and negative film sheet in superimposed relationship with respect to each other t...
02/04/1986
4360260Spreader roller system having adjustable roller gap
There is disclosed an assembly usable in a photographic apparatus for adjustably presetting the gap spacing of a pair of juxtaposed rollers used for spreading film processing fluid between a pair of sheets traveling therebetween. The presetting assembly i...
11/23/1982
4319827Method for assembling photographic self-processing apparatus
A method for assembling photographic processing systems of the type for advancing integral, self-processable film units to the exterior of a camera while simultaneously spreading a fluid processing composition in a uniformly thin layer between selected la...
03/16/1982
4253757Spread roller assembly
A spread roller assembly including a housing and a pair of juxtaposed rollers for spreading a processing liquid across a layer of an exposed film unit so as to initiate the formation of a visible image therein. The ends of one of the rollers are mounted i...
03/03/1981
4147425Photographic processing roller having a surface roughened by electric discharge machining
An improved cylindrical processing roller is provided for use in a motor driven photographic processing apparatus of the type which spreads a fluid processing composition in a thin, substantially uniform layer between selected layers of integral type self...
04/03/1979
4087831Bearing block mount for a photographic fluid spreading apparatus
Photographic apparatus for spreading a fluid processing composition in a layer between a pair of superposed sheet elements of a self-developing type film unit to initiate formation of a visible image include a pair of roller type spreader elements having ...
05/02/1978
4017879Self-developing type photographic apparatus with spread roller system
A self-developing type photographic apparatus includes a self-developing packet having a pair of juxtaposed sheet elements and a supply of film-processing fluid provided between the sheet elements with at least one of the sheet elements forming part of an...
04/12/1977
 
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