US2886464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact transfer for xerography
Assignee: Xerox Corp
•
Filing: 1955-08-09
•
Granted: 1959-05-12
•
Expires: 1975-08-09
Abstract
No abstract record available.
Inventors
- 👤 Warren G Van Dorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:34
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/14; G03G13/16; G03G7/00; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; G03G7/0053; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
IN THE XEROGRAPHIC PROCESS COMPRISING PLACING AN ELECTROSTATIC CHARGE ON THE SURFACE OF A PHOTOCONDUCTIVE INSULATING LAYER, EXPOSING THE ELECTRICALLY CHARGED PHOTOCONDUCTIVE INSULATING LAYER TO A PATTERN OF LIGHT AND SHADOW TO BE REPRODUCED TO CREATE THEREON AN ELECTROSTATIC IMAGE CORRESPONDING TO THE PATTERN OF LIGHT AND SHADOW, CONTACTING THE ELECTROSTATIC IMAGE WITH ELECTROSTATICALLY CHARGED POWDER PARTICLES TO CREATE ON THE PHOTOCONDUCTIVE INSULATING LAYER A DEPOSIT OF POWDER PARTICLES CORRESPONDING EXACTLY TO THE ELECTROSTATIC IMAGE AND TRANSFERRING THE POWDER IMAGE IN IMAGE CONFIGURATION TO A TRANSFER MEMBER, THE IMPROVEMENT: COMPRISING AFFECTING TRANSFER OF THE POWDER IMAGE BY PROVIDING A TRANSFER MEMBER COMPRISING A BASE SHEET COATED WITH AN ELASTICALLY DEFORMABLE RESINOUS INTERLAYER OVERCOATED WITH A RESINOUS MATERIAL SUBSTANTIALLY NON-TACKY AT ROOM TEMPERATURE SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYETHYLENE BLENDED WITH WAX, CONTACTING THE RESIN COATING OF SAID TRANSFER MEMBER WITH THE POWDER IMAGE ON A PHOTOCONDUCTIVE INSULATING LAYER AND PRESSING SAID COATING AND IMAGE TOGETHER TO THEREBY TRANSFER SAID POWDER IMAGE TO SAID RESIN COATING AT SUBSTANTIALLY ROOM TEMPERATURE AND REMOVING SAID BASE MEMBER WITH ITS COATING FROM CONTACT WITH SAID PHOTOCONDUCTIVE LAYER WHEREBY TRANSFER OF THE POWDER PARTICLES IN IMAGE CONFIGURATION IS ACHIEVED WITHOUT THE NECESSITY OF DEPOSITING ELECTROSTATIC CHARGES ON SAID TRANSFER MEMBER, THE PRESSURE PRODUCING SAID TRANSFER BEING SUBSTANTIALLY LESS THAN THAT NEEDED WHEN THE TRANSFER MEMBER OMITS SAID INTERLAYER.
Claim 2
Dependent Claim
226 words
IN THE XEROGRAPHIC PROCESS COMPRISING PLACING AN ELECTROSTATIC CHARGE ON THE SURFACE OF A PHOTOCONDUCTIVE INSULATING LAYER, EXPOSING THE ELECTRICALLY CHARGED PHOTOCONDUCTIVE INSULATING LAYER TO A PATTERN OF LIGHT AND SHADOW TO BE REPRODUCED TO CREATE THEREON AN ELECTROSTATIC IMAGE CORRESPONDING TO THE PATTERN OF LIGHT AND SHADOW, CONTACTING THE ELECTROSTATIC IMAGE WITH ELECTROSTATICALLY CHARGED POWDER PARTICLES TO CREATE ON THE PHOTOCONDUCTIVE INSULATING LAYER A DEPOSIT OF POWDER PARTICLES CORRESPONDING EXACTLY TO THE ELECTROSTATIC IMAGE AND TRANSFERRING THE POWDER IMAGE IN IMAGE CONFIGURATION TO A TRANSFER MEMBER, THE IMPROVEMENT: COMPRISING AFFECTING TRANSFER OF THE POWDER IMAGE BY PROVIDING A TRANSFER MEMBER COMPRISING A BASE SHEET COATED WITH AN ELASTICALLY DEFORMABLE RESINOUS INTERLAYER OVERCOATED WITH A RESINOUS MATERIAL SUBSTANTIALLY NON-TACKY AT ROOM TEMPERATURE SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYETHYLENE BLENDED WITH WAX, CONTACTING THE RESIN COATING OF SAID TRANSFER MEMBER WITH THE POWDER IMAGE ON A PHOTOCONDUCTIVE INSULATING LAYER AND PRESSING SAID COATING AND IMAGE TOGETHER TO THEREBY TRANSFER SAID POWDER IMAGE TO SAID RESIN COATING AT SUBSTANTIALLY ROOM TEMPERATURE AND REMOVING SAID BASE MEMBER WITH ITS COATING FROM CONTACT WITH SAID PHOTOCONDUCTIVE LAYER WHEREBY TRANSFER OF THE POWDER PARTICLES IN IMAGE CONFIGURATION IS ACHIEVED WITHOUT THE NECESSITY OF DEPOSITING ELECTROSTATIC CHARGES ON SAID TRANSFER MEMBER, THE PRESSURE PRODUCING SAID TRANSFER BEING SUBSTANTIALLY LESS THAN THAT NEEDED WHEN THE TRANSFER MEMBER OMITS SAID INTERLAYER.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |