US4324480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film feeder for an automatic developer
Assignee: Dainippon Screen Manufacturing Co Ltd
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Filing: 1981-02-17
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Granted: 1982-04-13
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Expires: 2001-02-17
Abstract
Abstract An automatic film feeder for an automatic developer wherein films exposed are processed through a developing tank, and wherein the films put in trays arranged above an endless belt which feeds the films into the developer, are ejected from the trays onto the belt by film ejectors of the same number as the trays, a control means controlling the ejectors so that the films may be ejected in the desired order and may be fed to the developer one by one without overlapping one on another.
Inventors
- 👤 Norimasa Nomura
- 👤 Atsushi Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:41
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/26; G; G03; G03D; G03D13/00; G03D13/003
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
An automatic film feeder for an automatic developer wherein a film exposed is processed through a developing tank, comprising: (a) an endless belt for transferring a film to a developer; (b) a plurality of trays which are arranged above the belt and each of which contains one film; (c) film ejectors of the same number as the trays, each ejecting the film from the corresponding tray onto the belt; and (d) a control means which controls the ejectors so that the films may be ejected from the trays in the desired order and may be fed to the developer one by one without overlapping one on another.
Claim 2
Dependent Claim
107 words
An automatic film feeder for an automatic developer wherein a film exposed is processed through a developing tank, comprising: (a) an endless belt for transferring a film to a developer; (b) a plurality of trays which are arranged above the belt and each of which contains one film; (c) film ejectors of the same number as the trays, each ejecting the film from the corresponding tray onto the belt; and (d) a control means which controls the ejectors so that the films may be ejected from the trays in the desired order and may be fed to the developer one by one without overlapping one on another.
Claim 3
Dependent Claim
49 words
A film feeder as defined in claim 1, further comprising a preference switch means by which the desired film put in its tray is ejected in preference to the other films put in the other trays except the film which is being ejected when the preference switch is pushed.
Claim 4
Dependent Claim
18 words
A film feeder as defined in claim 2, wherein the trays are arranged vertically in parallel one another.
Claim 5
Dependent Claim
18 words
A film feeder as defined in claim 2, wherein the trays are somewhat inclined at a certain angle.
Claim 6
Dependent Claim
26 words
A film feeder as defined in claim 3 or 4, wherein each film ejector comprises a pair of rollers arranged near the bottom of each tray.
Claim 7
Dependent Claim
30 words
A film feeder as defined in claim 3 or 4, wherein each film ejector comprises a stop member which is adapted to open or close the bottom of each tray.
Claim 8
Dependent Claim
35 words
A film feeder as defined in claim 5, wherein, when the completion of the ejection of one film put in its tray is detected, the ejection of another film put in its tray is started.
Claim 9
Dependent Claim
35 words
A film feeder as defined in claim 6, wherein, when the completion of the ejection of one film put in its tray is detected, the ejection of another film put in its tray is started.
Claim 10
Dependent Claim
38 words
A film feeder as defined in claim 6 wherein the ejection of another film put in its tray is started after a certain stand-by time which is taken after one film put in its tray is completely ejected.
Claim 11
Dependent Claim
38 words
A film feeder as defined in claim 7, wherein the ejection of another film put in its tray is started after a certain stand-by time which is taken after one film put in its tray is completely ejected.
Claim 12
Dependent Claim
42 words
A film feeder as defined in claim 9 or 10 wherein the ejector of the film put in the first tray is started after a certain stand-by time which is taken after the film put in the last tray is completely ejected.
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) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |