US3682082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing apparatus
Assignee: Agfa Gevaert NV
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Filing: 1970-02-04
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Granted: 1972-08-08
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Expires: 1990-02-04
Abstract
Abstract Processing apparatus for photographic material which contacts the material with a developer liquid and a fixing liquid in consecutive order, the developing liquid being applied by two spaced-apart applicator rollers partially immersed in such liquid, the first to contact the material being rotatably driven in a direction opposite to the direction of movement of the material and the second in the same direction as the material direction but at a substantially greater linear speed, and the fixing liquid is applied by an applicator roller partially immersed therein which is rotatably driven in a direction opposite to the direction of the material through the apparatus. Preferably, pairs of driving rollers are provided on either side of the array of applicator rollers.
Inventors
- 👤 Emile Frans Stievenart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:03
CPC Classifications
G; G03; G03D; G03D5/00; G03D5/06; G03D5/067
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
241 words
A processing apparatus for use in liquid processing exposed photographic strip or sheet material, comprising a developing station with a tray for containing developing liquid, at least two spaced apart applicator rollers which are located partly within such tray for applying developer liquid to the photographic material to be processed and are located one behind the other along the path followed by such material through the apparatus, a fixing station with a tray for containing fixing liquid, at least one applicator roller located partly within such fixing station tray for applying fixing liquid to the photographic material, pairs of driven transport rollers located outside said trays for transporting photographic material through the apparatus so that it travels over and in contact with said applicator rollers in the developing and fixing stations, and means for driving said applicator rollers so that the surface of the first developing liquid applicator roller to be encountered by photographic material as it is transported through the apparatus has a direction of motion in the plane of contact with such material which is opposite the direction of transportation of such material, the next developing liquid applicator roller rotates in the opposite direction to the first developing liquid applicator roller and at a peripheral speed higher than the speed of transportation of the photographic material through the apparatus, and the first such fixing liquid applicator roller, rotates in the same direction as the first developing liquid applicator roller.
Claim 2
Dependent Claim
241 words
A processing apparatus for use in liquid processing exposed photographic strip or sheet material, comprising a developing station with a tray for containing developing liquid, at least two spaced apart applicator rollers which are located partly within such tray for applying developer liquid to the photographic material to be processed and are located one behind the other along the path followed by such material through the apparatus, a fixing station with a tray for containing fixing liquid, at least one applicator roller located partly within such fixing station tray for applying fixing liquid to the photographic material, pairs of driven transport rollers located outside said trays for transporting photographic material through the apparatus so that it travels over and in contact with said applicator rollers in the developing and fixing stations, and means for driving said applicator rollers so that the surface of the first developing liquid applicator roller to be encountered by photographic material as it is transported through the apparatus has a direction of motion in the plane of contact with such material which is opposite the direction of transportation of such material, the next developing liquid applicator roller rotates in the opposite direction to the first developing liquid applicator roller and at a peripheral speed higher than the speed of transportation of the photographic material through the apparatus, and the first such fixing liquid applicator roller, rotates in the same direction as the first developing liquid applicator roller.
Claim 3
Dependent Claim
42 words
Apparatus according to claim 1, wherein guide members are provided for causing photographic material as it travels over an applicator roller to retain contact with such roller over a portion of the roller periphery subtending an angle of at least 10* .
Claim 4
Dependent Claim
36 words
Apparatus according to claim 2, comprising means for constraining photographic strip or sheet material to travel into and out of the tray for containing fixing liquid as such material passes from the fixing liquid applicator roller.
Claim 5
Dependent Claim
34 words
Apparatus according to claim 1, wherein there is, in the tray of the developing station, an upstanding elongated wall which separates the first developing liquid applicator roller from the next developing liquid applicator roller.
Claim 6
Dependent Claim
27 words
Apparatus according to claim 1, wherein means is provided for maintaining the tray at the developing station filled with developing liquid up to a constant predetermined level.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |