US3672329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developing device for electrostatic duplicators
Assignee: Minolta Co Ltd
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Filing: 1970-05-06
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Granted: 1972-06-27
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Expires: 1990-05-06
Abstract
Abstract A developing device comprising a continuous belt for carrying exposed photosensitive paper, an electrically conductive belt supported to be driven at the same speed in parallel spaced relationship therewith through a developing solution. A number of string-like insulating members are supported on the surface of the conductive belt facing the surface of the carrying belt. The insulating members and the conductive belt are driven into contact with a cleaning member mounted adjacent thereto.
Inventors
- 👤 Yorio Yamanoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:55
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/108
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electrically conductive means on the surface thereof facing said means for transporting, and said means for transporting and said electrically conductive means are each endless belts and said first and second means for moving are mechanically connected to each other to move at the same speed.
Claim 2
Dependent Claim
123 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electrically conductive means on the surface thereof facing said means for transporting, and said means for transporting and said electrically conductive means are each endless belts and said first and second means for moving are mechanically connected to each other to move at the same speed.
Claim 3
Dependent Claim
119 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electrically conductive means on the surface thereof facing said means for transporting, and means for suspending said electrically insulating means and including supporting members spaced across said insulating means, said insulating means comprises string-like members each extending over a respective supporting member.
Claim 4
Dependent Claim
119 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electrically conductive means on the surface thereof facing said means for transporting, and means for suspending said electrically insulating means and including supporting members spaced across said insulating means, said insulating means comprises string-like members each extending over a respective supporting member.
Claim 5
Dependent Claim
102 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electricalLy conductive means on the surface thereof facing said means for transporting, and means for cleaning said electrically conductive means and said electrically insulating means.
Claim 6
Dependent Claim
102 words
A developing device for an electrostatic duplicator having a liquid developing reservoir, comprising means for transporting photosensitized media through said developing reservoir; first means for moving said means for transporting; electrically conductive means in parallel spaced relationship to said means for transporting and forming a gap therewith within said developing reservoir; second means for moving said electrically conductive means at the same speed as said means for transporting along said gap; electrically insulating means carried by said electricalLy conductive means on the surface thereof facing said means for transporting, and means for cleaning said electrically conductive means and said electrically insulating means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |