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US4011568A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrophotographic camera

Assignee: Colorkrome Inc
•
Filing: 1974-11-01
•
Granted: 1977-03-08
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Expires: 1994-11-01
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Abstract

Abstract A compact electrophotographic camera for use in conjunction with an electrophotographic print having an electrically charged electrophotoconductive surface with the charged surface being covered with a sheet of dielectric material. As the print is advanced in the camera, the dielectric protective cover is stripped away by reverse passage over a roll. The electrophotographic print is then located on a support in the field of vision of the lens and is exposed. The sheet is then advanced to a toner applicator and is subsequently advanced out of the camera.

Inventors

  • 👤 Charles D. Oughton
  • 👤 Edward T. Bradley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 23:40
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 266 words
A camera comprising: a camera housing: lens means at the front of said camera housing for projecting a light image on a field at the rear of said camera housing; electrophotographic print material having an electrically charged electrophotoconductive surface, said charged surface being covered with a sheet of dielectric material; print support means in and at the rear of said camera housing in line with said lens means for holding an electrophotoconductive base in the field of said lens means such that the lens means projects its image to be photographed thereonto; shutter means mounted in said camera housing between said lens means and said support means for selectively opening and closing said lens means relative to said print support means; advancing means in said camera housing for advancing said electrophotographic print material from one side of the field of vision of said lens means, through said field of vision of said lens means and out of the field of vision of said lens means; sheet removal means in said camera housing upstream from the field of said lens means relative to the direction of advancement by said advancing means whereby said sheet of dielectric material is removed from said print as said print is advanced by said advancing means into the field of said lens means; toner applicator means in said camera housing adjacent said advancing means and out of the field projected by said lens means for applying toner to the exposed print as it is advanced by said advancing means; said housing including means facilitating removal of said print therefrom following its development.
Claim 2
Dependent Claim 266 words
A camera comprising: a camera housing: lens means at the front of said camera housing for projecting a light image on a field at the rear of said camera housing; electrophotographic print material having an electrically charged electrophotoconductive surface, said charged surface being covered with a sheet of dielectric material; print support means in and at the rear of said camera housing in line with said lens means for holding an electrophotoconductive base in the field of said lens means such that the lens means projects its image to be photographed thereonto; shutter means mounted in said camera housing between said lens means and said support means for selectively opening and closing said lens means relative to said print support means; advancing means in said camera housing for advancing said electrophotographic print material from one side of the field of vision of said lens means, through said field of vision of said lens means and out of the field of vision of said lens means; sheet removal means in said camera housing upstream from the field of said lens means relative to the direction of advancement by said advancing means whereby said sheet of dielectric material is removed from said print as said print is advanced by said advancing means into the field of said lens means; toner applicator means in said camera housing adjacent said advancing means and out of the field projected by said lens means for applying toner to the exposed print as it is advanced by said advancing means; said housing including means facilitating removal of said print therefrom following its development.
Claim 3
Dependent Claim 15 words
The camera of claim 1 in which said dielectric material comprises a polyester plastic film.
Claim 4
Dependent Claim 18 words
In the camera of claim 2 wherein said toner applicator means are adapted to dispense a liquid toner.
Claim 5
Dependent Claim 20 words
In the camera of claim 2 wherein said toner applicator means are adapted to dispense a toner in paste form.
Claim 6
Dependent Claim 64 words
The combination of claim 2, embodying in added combination and further association therewith: pretreating means mounted in said camera housing upstream, relative to the direction said electrophotographic print is advanced by said advancing means, of the field of exposure of said electrophotographic print in said camera for applying a surface-treating solvent to the surface of said base to facilitate its subsequent fixing and development.
Claim 7
Dependent Claim 48 words
The combination of claim 2, embodying in added combination and further association therewith: coating means adjacent said toner applicator means and downstream therefrom in the direction in which said electrophotographic print is advanced by said advancing means for applying protective coating of the fixed and developed exposed base.

References Cited (Backward Citations)

US2221776A Cited
US2831409A Cited
US3247007A Cited
US3528355A Cited
US3542465A Cited
US3592115A Cited
US3583807A Cited
US3798029A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-03-07 1980-09-06 1981-03-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-03-07 1984-09-06 1985-03-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-03-07 1988-09-06 1989-03-08 $7700.00 Window Closed / Lapsed

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