US3695162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developing machine for photographic film
Assignee: Individual
•
Filing: 1970-08-17
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Granted: 1972-10-03
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Expires: 1990-08-17
Abstract
Abstract A developing machine for photographic film. The machine includes a covered tank having a developing trough secured therein. A perforated cylindrical sleeve surrounding a film reel is removably supported within the trough by circular hubs adapted to fit within the open ends of the cylinder. One hub is located at the end of the trough, eccentrically attached to the shaft of a motor mounted on the trough, for rotating and agitating the cylinder. The other hub is supported on a fence that can be adjustably positioned along the length of the trough to accommodate cylinders of different length. Fluid is admitted to an outer portion of the tank to control the temperature environment of the trough. A valve controlled fluid supply system is provided for sequentially furnishing developing, washing and setting solutions to the trough from remote containers. Inert gas such as nitrogen under pressure is used to propel these solutions from their containers. A programmable timer is provided to control the valves of the supply system and establish the time intervals and sequence of steps of a desired developing cycle.
Inventors
- 👤 Ray D Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:54
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/04; G03D13/043; G03D13/006; G03D3/00; G03D3/02; G03D3/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
96 words
Apparatus for processing photographic film comprising a fluid-retaining developing trough, means for delivering fluid to the interior of said trough first and second circular hubs rotatably mounted in spaced relationship within said developing trough, at least one of said hubs being eccentrically mounted within said developing trough, a hollow cylindrical sleeve removably disposed within said developing trough, said sleeve being rotatably supported at its ends by said hubs, said sleeve having a film holder removably confined therein for supporting film to be developed, and motive means mounted on said tank for selectively rotating said cylindrical sleeve.
Claim 2
Dependent Claim
96 words
Apparatus for processing photographic film comprising a fluid-retaining developing trough, means for delivering fluid to the interior of said trough first and second circular hubs rotatably mounted in spaced relationship within said developing trough, at least one of said hubs being eccentrically mounted within said developing trough, a hollow cylindrical sleeve removably disposed within said developing trough, said sleeve being rotatably supported at its ends by said hubs, said sleeve having a film holder removably confined therein for supporting film to be developed, and motive means mounted on said tank for selectively rotating said cylindrical sleeve.
Claim 3
Dependent Claim
24 words
Apparatus as claimed in claim 1, wherein the periphery of at least said one hub is partially surrounded by a ring of nonmetallic material.
Claim 4
Dependent Claim
119 words
Apparatus for developing photographic film comprising an elongate developing trough having opposed side walls and opposed ends, an electric motor mounted adjacent said trough having a shaft extending through one end of said trough, a first circular hub eccentrically mounted on said shaft for rotation therewith, a support arm movably mounted on said trough, extending downwardly into the trough between opposed sides of said trough, a second circular hub rotatably mounted on said support arm, opposed from said first hub, and a cylindrical sleeve removably disposed within said trough, said sleeve having open ends of a diameter greater than the diameter of said hubs, the ends of said sleeve being adapted to fit over said hubs for rotation therewith.
Claim 5
Dependent Claim
119 words
Apparatus for developing photographic film comprising an elongate developing trough having opposed side walls and opposed ends, an electric motor mounted adjacent said trough having a shaft extending through one end of said trough, a first circular hub eccentrically mounted on said shaft for rotation therewith, a support arm movably mounted on said trough, extending downwardly into the trough between opposed sides of said trough, a second circular hub rotatably mounted on said support arm, opposed from said first hub, and a cylindrical sleeve removably disposed within said trough, said sleeve having open ends of a diameter greater than the diameter of said hubs, the ends of said sleeve being adapted to fit over said hubs for rotation therewith.
Claim 6
Dependent Claim
40 words
Apparatus as claimed in claim 3, further including fence means movably mounted within said trough for dividing said trough, and a sealing member providing a seal between the periphery of said fence means and the inner surface of said trough.
Claim 7
Dependent Claim
24 words
Apparatus as claimed in Claim 3, further including a film holder removably confined within said cylindrical sleeve, the surface of said sleeve being perforated.
Claim 8
Dependent Claim
31 words
Apparatus as claimed in claim 3, further including a tank having said trough mounted therewithin, said tank being adapted to hold a body of liquid about the outside of said trough.
Claim 9
Dependent Claim
91 words
Film processing apparatus comprising an elongate developing trough having sides and opposed ends adapted to hold fluid, a perforate container member disposed in said trough adapted to support therewithin film to be processed, mechanism supporting such container member within said trough for rotation of the container member about an axis extending generally between said ends of the trough, said mechanism including means eccentrically mounting at least one end of the container member whereby said end moves eccentrically on rotation of the container member, and motive means for rotating said container member.
Claim 10
Dependent Claim
91 words
Film processing apparatus comprising an elongate developing trough having sides and opposed ends adapted to hold fluid, a perforate container member disposed in said trough adapted to support therewithin film to be processed, mechanism supporting such container member within said trough for rotation of the container member about an axis extending generally between said ends of the trough, said mechanism including means eccentrically mounting at least one end of the container member whereby said end moves eccentrically on rotation of the container member, and motive means for rotating said container member.
Claim 11
Dependent Claim
38 words
The apparatus of claim 7, wherein said mechanism comprises opposed hubs for supporting the ends of the container member, at least one hub being movably mounted within said trough for adjustable movement along the length of the trough.
Claim 12
Dependent Claim
56 words
The apparatus of claim 7, which further includes a movable partition extending into the trough between its ends, said partition being sealed along its periphery to the inner surface of the trough and being effective to divide the trough into multiple compartments, said container and the mechanism supporting said container being within one of said compartments.
Claim 13
Dependent Claim
151 words
Film processing apparatus comprising an elongate developing trough having sides and opposed ends adapted to hold fluid, said trough having means for draining fluid from one end thereof, a movable partition extending into the trough disposed between the ends thereof, said partition being sealed along its periphery to the inner surface of the trough and being effective to divide the trough into multiple compartments including one having said means for draining fluid and one bounded by the other end of said trough, a container member mounted within said other compartment for holding film to be processed, and mechanism supporting said container member within said other compartment accommodating rotation of the container member about an axis extending generally along the length of the trough, said mechanism including a mounting for at least one end of said container member movable along the length of the trough to accommodate release of the container member.
Claim 14
Dependent Claim
151 words
Film processing apparatus comprising an elongate developing trough having sides and opposed ends adapted to hold fluid, said trough having means for draining fluid from one end thereof, a movable partition extending into the trough disposed between the ends thereof, said partition being sealed along its periphery to the inner surface of the trough and being effective to divide the trough into multiple compartments including one having said means for draining fluid and one bounded by the other end of said trough, a container member mounted within said other compartment for holding film to be processed, and mechanism supporting said container member within said other compartment accommodating rotation of the container member about an axis extending generally along the length of the trough, said mechanism including a mounting for at least one end of said container member movable along the length of the trough to accommodate release of the container member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |