US4758857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film developing machine
Assignee: Nix Inc
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Filing: 1987-02-05
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Granted: 1988-07-19
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Expires: 2007-02-05
Abstract
Abstract A space is formed in an automatic film developing machine by side walls, a bottom wall and two pairs of film feed rollers. One of the two pairs of film feed rollers is arranged between front end portions of the side walls and the other pair of the film feed rollers is disposed between rear end portions of the side walls. The machine is equipped with a means for feeding a film processing solution to the space. At least one discharge pipe is also provided to discharge the film processing solution from the space. The discharge pipe communicates the space to a point outside the space. The upper end of the discharge pipe is positioned at a desired height higher than the nips of the paired film feed rollers whereas the lower end of the discharge pipe is in communication with a reservoir for the film processing solution.
Inventors
- 👤 Hiroyuki Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
210 words
An automatic film developing machine comprising: first and second side walls; a bottom wall; first and second pairs of film feed rollers, said side walls, bottom wall and feed rollers defining a space, and the first pair of film feed rollers being arranged between front end portions of the side walls, and the second pair of film feed rollers being disposed between rear end portions of the side walls; means for feeding a film processing solution to the space; and at least one discharge pipe for discharging the film processing solution, the discharge pipe extending from the bottom wall into the space and communicating the space to a point outside the space, the lower end of said discharge pipe thereby communicating with a reservoir for the film processing solution, the upper end of the discharge pipe being positioned at a desired height higher than the nips of the paired film feed rollers so as to discharge the film processing solution, the level of which is higher than the desired height, through the bottom wall to a point outside the space and the discharge pipe including at least one bore formed at a predetermined position through the wall of the discharge pipe for discharging the film processing solution through the bore.
Claim 2
Dependent Claim
210 words
An automatic film developing machine comprising: first and second side walls; a bottom wall; first and second pairs of film feed rollers, said side walls, bottom wall and feed rollers defining a space, and the first pair of film feed rollers being arranged between front end portions of the side walls, and the second pair of film feed rollers being disposed between rear end portions of the side walls; means for feeding a film processing solution to the space; and at least one discharge pipe for discharging the film processing solution, the discharge pipe extending from the bottom wall into the space and communicating the space to a point outside the space, the lower end of said discharge pipe thereby communicating with a reservoir for the film processing solution, the upper end of the discharge pipe being positioned at a desired height higher than the nips of the paired film feed rollers so as to discharge the film processing solution, the level of which is higher than the desired height, through the bottom wall to a point outside the space and the discharge pipe including at least one bore formed at a predetermined position through the wall of the discharge pipe for discharging the film processing solution through the bore.
Claim 3
Dependent Claim
24 words
The automatic film developing machine as claimed in claim 1, wherein the discharge pipe is provided through an opening bored through the bottom wall.
Claim 4
Dependent Claim
35 words
The automatic film developing machine as claimed in claim 1, wherein the discharge pipe is provided in registration with an opening bored through the bottom wall and extends from the bottom wall into the space.
Claim 5
Dependent Claim
25 words
The automatic film developing machine as claimed in claim 1, wherein said at least one bore is provided in the vicinity of the bottom wall.
Claim 6
Dependent Claim
160 words
An automatic film developing machine comprising: first and second side walls; a bottom wall; first and second pairs of film feed rollers, said side walls, bottom wall and feed rollers defining a space; the first pair of film feed rollers being arranged between front end portions of the side walls; the second pair of film feed rollers being disposed between rear end portions of the side walls; means for feeding a film processing solution to the space; and at least one discharge pipe for discharging the film processing solution, wherein the discharge pipe has upper and lower bent portions and the lower bent portion extending from the bottom wall into the space and communicating the space to a point outside the space, the lower end of said discharge pipe thereby communicating with a reservoir for the film processing solution, and the upper bent portion is provided at a desired height higher than the nips of the paired film feed rollers.
Claim 7
Dependent Claim
160 words
An automatic film developing machine comprising: first and second side walls; a bottom wall; first and second pairs of film feed rollers, said side walls, bottom wall and feed rollers defining a space; the first pair of film feed rollers being arranged between front end portions of the side walls; the second pair of film feed rollers being disposed between rear end portions of the side walls; means for feeding a film processing solution to the space; and at least one discharge pipe for discharging the film processing solution, wherein the discharge pipe has upper and lower bent portions and the lower bent portion extending from the bottom wall into the space and communicating the space to a point outside the space, the lower end of said discharge pipe thereby communicating with a reservoir for the film processing solution, and the upper bent portion is provided at a desired height higher than the nips of the paired film feed rollers.
Claim 8
Dependent Claim
17 words
The automatic film developing machine as claimed in claim 5, wherein the lower bent portion is detachable.
Claim 9
Dependent Claim
32 words
The automatic film developing machine as claimed in claim 5, wherein the lower bent portion defines a hole through a lower wall portion thereof and has a cover normally closing the hole.
References Cited (Backward Citations)
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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) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |