US3661067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for use in film development, fixing, and rinsing troughs with parallel drive rollers
Assignee: Individual
•
Filing: 1970-04-10
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Granted: 1972-05-09
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Expires: 1990-04-10
Abstract
Abstract A device for use in film development, fixing, and rinsing troughs, to which are mounted and which include parallel driving rollers at intervals all located in the same plane. Counter rollers are located in contact with the driving rollers and a bevel tooth spindle wheel is connected to one end of each driving roller and a spindle which is in contact with each spindle wheel is mounted on a common driven shaft.
Inventors
- 👤 Jaakko Aarnio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:07
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/003; G03D3/00; G03D3/08; G03D3/13; G03D3/132
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
229 words
A device for use in film development, fixing, and rinsing troughs, to which are mounted parallel driving rollers at intervals all in the same plane, and counter rollers in contact with these, at which a bevel tooth spindle wheel is mounted to one end of each driving roller, and a spindle in contact with each spindle wheel is mounted on a driven common shaft, and at which the film is arranged to move continuously through liquids contained in the said successively arranged troughs, characterized in that the obliqueness of the teeth on the spindle wheel (9) of the first and the last driving roller (3 and 5) in the direction of movement of the film is opposite to the obliqueness of the teeth on the spindle wheels (9) of the other driving rollers (4,6,7), and the direction of the thread of the first and the last spindle is opposite to the direction of the threads of the other spindles, at which the directions of rotation of the first and the last driving roller (3,5) and of the corresponding counter rollers (3a,5a) are correspondingly opposite to the direction of rotation of the other driving rollers (4,6,7) and their counter rollers (4a,6a,7a), and that the first and the last counter roller (3a,5a) with respect to the driving rollers are situated on the opposite side relative to the other counter rollers (4a,6a,7a).
Claim 2
Independent Claim
229 words
A device for use in film development, fixing, and rinsing troughs, to which are mounted parallel driving rollers at intervals all in the same plane, and counter rollers in contact with these, at which a bevel tooth spindle wheel is mounted to one end of each driving roller, and a spindle in contact with each spindle wheel is mounted on a driven common shaft, and at which the film is arranged to move continuously through liquids contained in the said successively arranged troughs, characterized in that the obliqueness of the teeth on the spindle wheel (9) of the first and the last driving roller (3 and 5) in the direction of movement of the film is opposite to the obliqueness of the teeth on the spindle wheels (9) of the other driving rollers (4,6,7), and the direction of the thread of the first and the last spindle is opposite to the direction of the threads of the other spindles, at which the directions of rotation of the first and the last driving roller (3,5) and of the corresponding counter rollers (3a,5a) are correspondingly opposite to the direction of rotation of the other driving rollers (4,6,7) and their counter rollers (4a,6a,7a), and that the first and the last counter roller (3a,5a) with respect to the driving rollers are situated on the opposite side relative to the other counter rollers (4a,6a,7a).
Claim 3
Dependent Claim
195 words
Device as claimed in claim 1, characterized in that the first and the last counter roller (3a,5a) are mounted to the levers (11,16) turnably mounted to the body of the device above the driving roller (3,5), while the other counter rollers (4a,5a,7a) are correspondingly situated below the corresponding driving rollers (4,6,7), that the first counter roller (3a) contacts the mantle surface of its driving roller (3) at a point forward from the vertical plane through its axle and somewhat downward from the horizontal plane tangent to its upper surface, in order to conduct the film diagonally downward between the next roller pair (4,4a), and that the second last counter roller (6a) is mounted to the levers (15) turnably mounted to the body of the device, so as to contact the mantle surface of its driving roller (6) forward from the vertical plane through its axle (8) and somewhat above the horizontal plane tangent to its lower mantle surface, in order to guide the film diagonally upward between the last roller pair (5,5a), while the driving rollers (5,7) of the other counter rollers (5a,7a) and the corresponding driving rollers (5, 7) are vertically opposite one another.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |