US3633488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-tray photographic print agitator
Assignee: Individual
•
Filing: 1970-08-19
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Granted: 1972-01-11
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Expires: 1990-08-19
Abstract
Abstract An agitator comprising a bottom tank in which water is kept at a definite level and at an even temperature, an inlet water supply and a drain pipe. Inlet water supply operates a water wheel device by conveying water through an inclined plate having orifices at its upper end so that water is directed against the vanes of a water wheel. A crank is connected to the water wheel and to a pivoted frame within said tank to rock the frame. The frame is adapted to support print trays so that their bottoms depend into the tank and below the level of the water therein. The liquids within the developer trays are thus maintained at a constant temperature by the water within the tank.
Inventors
- 👤 Frank Rummo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:36
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/04; B; B01; B01F; B01F31/00; B01F31/60
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
173 words
A multiple-tray photographic print agitator comprising a bottom tank, a water wheel device connected to the water supply pipe, said water wheel device comprising a cylinder shaped housing, a nozzle plate mounted in the housing and inclined upwardly and outwardly from the bottom of the housing and the end of said pipe respectively, a vane-type water wheel journaled in the housing behind the nozzle plate, said nozzle plate having orifices in the upper portion thereof for directing a stream of water to the upper part of the housing and against the vanes of the water wheel, a crank extending through the housing and attached to the water wheel, a print tray supporting frame pivotally connected to the opposite ends of the water tank for rocking movement, print trays supported in the supporting frame and one side of said frame having a pin projection, and link means extending between the water wheel crank and the pin projection of the frame, whereby as the water wheel is turned the tray supporting frame will be rocked.
Claim 2
Dependent Claim
173 words
A multiple-tray photographic print agitator comprising a bottom tank, a water wheel device connected to the water supply pipe, said water wheel device comprising a cylinder shaped housing, a nozzle plate mounted in the housing and inclined upwardly and outwardly from the bottom of the housing and the end of said pipe respectively, a vane-type water wheel journaled in the housing behind the nozzle plate, said nozzle plate having orifices in the upper portion thereof for directing a stream of water to the upper part of the housing and against the vanes of the water wheel, a crank extending through the housing and attached to the water wheel, a print tray supporting frame pivotally connected to the opposite ends of the water tank for rocking movement, print trays supported in the supporting frame and one side of said frame having a pin projection, and link means extending between the water wheel crank and the pin projection of the frame, whereby as the water wheel is turned the tray supporting frame will be rocked.
Claim 3
Dependent Claim
34 words
A multiple-tray photographic print agitator as defined in claim 1 and a drain pipe in said tAnk for maintaining a water level within the tank about the print trays depending from the support frame.
Claim 4
Dependent Claim
59 words
A multiple-tray photographic print agitator as defined in claim 2 and said trays having a flanged top edge and resting on the top of the frame while depending downwardly therethrough, said frame having notches to permit the extension of the operator''s fingers under the flanged top edges of the trays to facilitate removal of said trays from the frame.
Claim 5
Dependent Claim
83 words
A multiple-tray photographic print agitator as set forth in claim 2 and said tray supporting frame being pivotally connected to the ends of the tank by means of depending members having outwardly extending projections, said tank having openings with bushings for receiving the projections of the depending members of the frame and said depending members connected with the tank depending from the frame side intermediate the length of the frame, said water wheel device being located in the tank at one side thereof.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |