US3586436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tabletop electrostatic copying machine
Assignee: WILLIAM B JARZEMBSKI
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Filing: 1968-03-04
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Granted: 1971-06-22
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Expires: 1988-03-04
Abstract
Abstract A tabletop electrostatic copying machine has a tunnel opening for the original. The copy paper moves in a path with few bends past the exposure station synchronized with the moving original. Liquid toner is applied to only one face of the copy to minimize drying time. The bottom of the housing is a reservoir for the toner and excess toner from the copy paper falls there.
Inventors
- 👤 William B Jarzembski
- 👤 Joseph H Jaeger
- 👤 Sperry Rand Corp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:42
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
49 words
A photocopying machine as set forth in claim 1 and further including a liquid developer in said developing means, and wherein said exit station includes a grid receiving and supporting said paper said grid having open spaces above and below it for drying of both surfaces of said paper.
Claim 2
Dependent Claim
57 words
A tabletop photocopying machine as set forth in claim 1 and further including an electrostatic charger within said housing above said exposing station and past which said paper is fed vertically to said exposing station, there being feed roller means above said charger and below said exposing station, but not intermediate said charger and said exposing station.
Claim 3
Dependent Claim
42 words
A photocopying machine as set forth in claim 1 wherein said receiving means includes a substantially straight horizontal tunnel through said housing and a downwardly inclined plate leading to said tunnel and on which said item is manually fed to said tunnel.
Claim 4
Dependent Claim
79 words
A tabletop photocopying machine as set forth in claim 1 and further including feed roller adjacent said paper safe and engageable with a top sheet of paper in said safe to feed said paper edgewise from a stack thereof in said safe, and further including means for relatively moving said roller and said stack of paper vertically from one another to free said top sheet of paper from said roller as said paper is fed from said paper safe.
Claim 5
Dependent Claim
38 words
A part photocopying machine a set forth in claim 1 said reservoir for liquid developer comprising a par of said housing and of shallow height and extending substantially the entire horizontal dimensions of the bottom of said machine.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |