US3711196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image transfer
Assignee: Xerox Corp
•
Filing: 1969-12-04
•
Granted: 1973-01-16
•
Expires: 1989-12-04
Abstract
Abstract Apparatus for electrostatically transferring images formed by photoelectrophoresis. The color balance of the images which are made up of electrically photosensitive particles on a transparent conductive substrate are modified during electrostatic transfer by exposure to electromagnetic radiation to which at least a portion of the particles are sensitive.
Inventors
- 👤 V Tulagin
- 👤 L Carreira
- 👤 I Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/22; G03G15/24; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
16 words
The apparatus of claim 1 wherein said transfer member is in the form of a roller.
Claim 2
Dependent Claim
17 words
The apparatus of claim 1 wherein said transfer member is in the form of a continuous web.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 wherein said transfer member comprises a conductive support having an insulated covering thereon.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein said transfer member comprises a conductive support having a semi-conductive covering thereon.
Claim 5
Dependent Claim
26 words
The apparatus of claim 1 wherein said means for applying a potential difference between said transfer member and said first electrode is a corona discharge unit.
Claim 6
Dependent Claim
143 words
A photoelectrophoretic imaging apparatus comprising a smooth optically transparent first electrode for supporting a layer of an imaging suspension comprising electrically photosensitive particles in an insulating carrier liquid, a second electrode for uniformly contacting the free surface of an imaging suspension on said first electrode, means for applying a potential difference between said first and said second electrodes, means for exposing a suspension on said first electrode through said first electrode to radiation to which at least a portion of the particles in the imaging suspension are responsive until an image is formed on said first electrode, a transfer member for contacting an image on said first electrode, means for exposing an image on said first electrode to visible light which is less intense in at least one portion of the visible spectrum while said transfer member is in contact with the image.
Claim 7
Dependent Claim
16 words
The apparatus of claim 7 wherein said transfer member is in the form of a roller.
Claim 8
Dependent Claim
17 words
The apparatus of claim 7 wherein said transfer member is in the form of a continuous web.
Claim 9
Dependent Claim
18 words
The apparatus of claim 7 wherein said transfer member comprises a conductive support having an insulated covering thereon.
Claim 10
Dependent Claim
18 words
The apparatus of claim 7 wherein said transfer member comprises a conductive support having a semi-conductive covering thereon.
Claim 11
Dependent Claim
26 words
The apparatus of claim 7 wherein said means for applying a potential difference between said transfer member and said first electrode is a corona discharge unit.
References Cited (Backward Citations)
US2968552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |