US4021110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocopying camera and processing device
Assignee: Xerox Corp
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Filing: 1975-04-30
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Granted: 1977-05-03
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Expires: 1995-04-30
Abstract
Abstract A camera/processor for, in a preferred mode, continuously exposing and developing photographic film, and preferably, photographic migration imaging film. The versatility of the apparatus is demonstrated by its ability to perform either heat or meniscus development and, optionally, film overcoating. After the film is exposed, it travels along a predetermined path, which path may include a plurality of separate film developing and film drying stations, toward a takeup reel.
Inventors
- 👤 Arnold L. Pundsack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:02
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
319 words
An apparatus for exposing and developing film comprising: film supply means for holding a supply of film and dispensing it upon demand, said supply means being under a torque opposite in direction to that in which the film is being dispensed; means for guiding the film along a predetermined path from said supply means to a takeup means; charging means adjacent the predetermined path for depositing a uniform charge upon the surface of the film; exposure means adjacent the predetermined path, after said charging means, for exposing the charged film comprising vacuum means for holding the film in a substantially flat plane and means to control imagewise exposure of the film; drive means adjacent the predetermined path, after the exposure means, cooperating with the takeup means to cause the film to move along the predetermined path; first development means adjacent the predetermined path, after said drive means, for developing the film comprising a freely rotatable drum member having electrical means to heat the surface thereof, said surface adapted to contact film whereby the film is developed; overcoating means adjacent the predetermined path, after said first development means, for creating a liquid meniscus of overcoating materials through which the developed film passes comprising a drum member mounted on a shaft for free rotation, a shoe member having a curved surface substantially the same radius as the drum member, said shoe member supported adjacent the drum member for adjustable movement into close proximity of the drum member along the periphery thereof to form a gap therewith, and means to deposit and remove overcoating fluid from the gap created between the drum member and the shoe member; drying means adjacent the predetermined path, after said overcoating means, for passing air over the film; said takeup means being under a torque for receiving the film; and second development means adjacent the predetermined path, after said drive means and before said first development means.
Claim 2
Independent Claim
319 words
An apparatus for exposing and developing film comprising: film supply means for holding a supply of film and dispensing it upon demand, said supply means being under a torque opposite in direction to that in which the film is being dispensed; means for guiding the film along a predetermined path from said supply means to a takeup means; charging means adjacent the predetermined path for depositing a uniform charge upon the surface of the film; exposure means adjacent the predetermined path, after said charging means, for exposing the charged film comprising vacuum means for holding the film in a substantially flat plane and means to control imagewise exposure of the film; drive means adjacent the predetermined path, after the exposure means, cooperating with the takeup means to cause the film to move along the predetermined path; first development means adjacent the predetermined path, after said drive means, for developing the film comprising a freely rotatable drum member having electrical means to heat the surface thereof, said surface adapted to contact film whereby the film is developed; overcoating means adjacent the predetermined path, after said first development means, for creating a liquid meniscus of overcoating materials through which the developed film passes comprising a drum member mounted on a shaft for free rotation, a shoe member having a curved surface substantially the same radius as the drum member, said shoe member supported adjacent the drum member for adjustable movement into close proximity of the drum member along the periphery thereof to form a gap therewith, and means to deposit and remove overcoating fluid from the gap created between the drum member and the shoe member; drying means adjacent the predetermined path, after said overcoating means, for passing air over the film; said takeup means being under a torque for receiving the film; and second development means adjacent the predetermined path, after said drive means and before said first development means.
Claim 3
Dependent Claim
123 words
The apparatus of claim 1 wherein said second development means comprises: a drum member mounted on a shaft for free rotation, a shoe member having a curved surface with substantially the same radius as said drum member, the length of said curved surface of said second development means smaller than the length of the curved surface of the shoe member of said first development means, said shoe member of said second development means supported adjacent said drum member for adjustable movement into close proximity of said drum member and along the periphery thereof to form a gap therewith, and means to deposit and remove developing fluid from the gap created betwen said drum member and said shoe member of said second development means.
Claim 4
Dependent Claim
99 words
The apparatus of claim 1 wherein said second development means comprises: a first roller means adapted to guidingly receive the film, said first roller means being freely rotatable and of a diameter smaller than the diameter of said drum member of said first development means, container means for holding a volume of development fluid at a specific level, said container means positioned adjacent said first roller means, a rotating second roller means partially below said specific level and closely adjacent said first roller means whereby a meniscus of development fluid will extend between said first and second roller means.
Claim 5
Dependent Claim
18 words
The apparatus of claim 3 wherein said second roller means is rotated opposite to said first roller means.
Claim 6
Dependent Claim
296 words
Apparatus for exposing and developing film comprising: film supply means for holding a supply of film and dispensing it upon demand, said supply means being under a torque opposite in direction to that in which the film is being dispensed; means for guiding the film along a predetermined path from said supply means to a takeup means; charging means adjacent the predetermined path for depositing a uniform charge upon the surface of the film; exposure means adjacent the predetermined path, after said charging means, for exposing the charged film to an imagewise pattern of activating electromagnetic radiation and creating an imagewise electrostatic latent image on the film; drive means adjacent the predetermined path, after said exposure means, cooperating with said takeup means to cause the film to move along the predetermined path; development means adjacent the predetermined path, after said drive means, for developing the latent image on the film comprising: a drum member mounted on a shaft for free rotation, a shoe member having a curved surface with substantially the same radius as said drum member, said shoe member supported adjacent said drum member for adjustable movement into close proximity of said drum member and along the periphery thereof to form a gap therewith, and means to deposit and remove developing fluid from the gap created between said drum member and said shoe member; overcoating means adjacent the predetermined path, after said development means, for creating a liquid meniscus of overcoating materials through which the developed film passes; first drying means adjacent the predetermined path, after said overcoating means, for passing air over the film; said takeup means for receiving the film being under a torque; and second drying means adjacent the predetermined path, after said first development means, for passing air over the film.
Claim 7
Dependent Claim
296 words
Apparatus for exposing and developing film comprising: film supply means for holding a supply of film and dispensing it upon demand, said supply means being under a torque opposite in direction to that in which the film is being dispensed; means for guiding the film along a predetermined path from said supply means to a takeup means; charging means adjacent the predetermined path for depositing a uniform charge upon the surface of the film; exposure means adjacent the predetermined path, after said charging means, for exposing the charged film to an imagewise pattern of activating electromagnetic radiation and creating an imagewise electrostatic latent image on the film; drive means adjacent the predetermined path, after said exposure means, cooperating with said takeup means to cause the film to move along the predetermined path; development means adjacent the predetermined path, after said drive means, for developing the latent image on the film comprising: a drum member mounted on a shaft for free rotation, a shoe member having a curved surface with substantially the same radius as said drum member, said shoe member supported adjacent said drum member for adjustable movement into close proximity of said drum member and along the periphery thereof to form a gap therewith, and means to deposit and remove developing fluid from the gap created between said drum member and said shoe member; overcoating means adjacent the predetermined path, after said development means, for creating a liquid meniscus of overcoating materials through which the developed film passes; first drying means adjacent the predetermined path, after said overcoating means, for passing air over the film; said takeup means for receiving the film being under a torque; and second drying means adjacent the predetermined path, after said first development means, for passing air over the film.
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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) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |