Patent US1923523A successfully refreshed from Google Patents.
US3552850A
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Lubricated blade cleaning of imaging photoconductive members
Assignee: Xerox Corp
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Filing: 1968-02-01
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Granted: 1971-01-05
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Expires: 1988-02-01
Abstract
Abstract AN IMAGING SYSTEM EMPOLYING A REUSABLE ELECTROSTATOGRAPHIC IMAGING SURFACE CLEANING STATION COMPRISING AT LEAST ONE SELF-ADJUSTING FLEXIBLE CLEANING BLADE FOR PRESSURE CONTACT CLEANING OF THE IMAGING SURFACE AND MEANS TO SUPPLY A DRY SOLID LUBRICANT TO THE IMAGING SURFACE. THE LEADING FACE OF AT LEAST ONE CLEANING BLADE IS PREFERABLY POSITIONED TO FORM AN ACUTE ANGLE OF LESS THAN ABOUT 60* AND GREATER THAN ABOUT 20* WITH THE CONFRONTING PORTION OF THE IMAGING SURFACE R PLANE TANGENT TO THE IMAGING SURFACE AT THE LINE OF BLADE CONTACT.
Inventors
- 👤 Stephen F Royka
- 👤 Robert L Emerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:10
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G21/00; G03G21/0005; G03G21/0011; G03G21/0029; G03G5/00; G03G5/005; G03G9/097
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |