US3063859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for transferring images from xerographic to metallic plates
Assignee: Xerox Corp
•
Filing: 1955-03-01
•
Granted: 1962-11-13
•
Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 Heckscher Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:40
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1625; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE METHOD OF TRANSFERRING A POWDER IMAGE FROM A PHOTOCONDUCTIVE SURFACE OF A XEROGRAPHIC PLATE TO THE SURFACE OF A CONDUCTIVE PLATE COMPRISING THE STEPS OF FORMING ONE OF SAID PLATES IN AN ARE OF SUBSTANTIALLY UNIFORM RADIUS, CONTACTING THE CONVEX SURFACE OF THE CURVED PLATE IN A ROLLING MOTION AGAINST THE SURFACE OF THE OTHER PLATE WITH THE POWDER IMAGE THEREBETWEEN, WHEREBY THE RESPECTIVE PLATE SURFACES ARE PROGRESSIVELY BROUGHT INTO TANGENTIAL CONTACT AND, SIMULANEOUSLY WITH SUCH ROLLING MOTION, APPLYING AN ELECTRICAL POTENTIAL BETWEEN THE XEROGRAPHIC PLATE AND THE CONDUCTIVE PLATE, HEATING THE CONDUCTIVE PLATE DURING THE ENTIRE PERIOD OF POWDER IMAGE TRANSFER, AND APPLYING SUBSTANTIALLY UNIFORM PRESSURE TO MAINTAIN THE PLATES IN SURFACE CONTACT ALONG THE LINE OF TANGENTIAL CONTACT.
Claim 2
Independent Claim
121 words
THE METHOD OF TRANSFERRING A POWDER IMAGE FROM A PHOTOCONDUCTIVE SURFACE OF A XEROGRAPHIC PLATE TO THE SURFACE OF A CONDUCTIVE PLATE COMPRISING THE STEPS OF FORMING ONE OF SAID PLATES IN AN ARE OF SUBSTANTIALLY UNIFORM RADIUS, CONTACTING THE CONVEX SURFACE OF THE CURVED PLATE IN A ROLLING MOTION AGAINST THE SURFACE OF THE OTHER PLATE WITH THE POWDER IMAGE THEREBETWEEN, WHEREBY THE RESPECTIVE PLATE SURFACES ARE PROGRESSIVELY BROUGHT INTO TANGENTIAL CONTACT AND, SIMULANEOUSLY WITH SUCH ROLLING MOTION, APPLYING AN ELECTRICAL POTENTIAL BETWEEN THE XEROGRAPHIC PLATE AND THE CONDUCTIVE PLATE, HEATING THE CONDUCTIVE PLATE DURING THE ENTIRE PERIOD OF POWDER IMAGE TRANSFER, AND APPLYING SUBSTANTIALLY UNIFORM PRESSURE TO MAINTAIN THE PLATES IN SURFACE CONTACT ALONG THE LINE OF TANGENTIAL CONTACT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |