US3380355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic cleaning apparatus
Assignee: Xerox Corp
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Filing: 1965-10-22
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Granted: 1968-04-30
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Roger H Eichorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:34
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0041; G03G15/00; G03G15/22; G03G15/28; G03G15/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A XEROGRAPHIC REPRODUCING APPARATUS WHEREIN A XEROGRAPHIC DRUM IS ROTATED THROUGH A SERIES OF PROCESSING STATIONS INCLUDING A DRUM CLEANING STATION HAVING A SERIES OF PARALLEL SHAFTS AND A WEB OF FIBROUS MATERIAL EXTENDING FROM A SUPPLY ROLL MOUNTED ON ONE OF THE SHAFTS TO A TAKEUP ROLL MOUNTED ON ANOTHER OF THE SHAFTS AND URGED INTO RUBBING CONTACT WITH THE SURFACE OF THE XEROGRAPHIC DRUM BY A CLEANING ROLL MOUNTED ON ANOTHER OF THE SHAFTS, THE IMPROVEMENT COMPRISING A FIRST RATCHET WHEEL SECURED TO THE SHAFT OF THE CLEANING ROLLER, A SECOND RATCHET WHEEL SECURED TO THE SHAFT OF THE TAKEUP ROLLER, AND A FIRST CAM AND A SECOND CAM MOUNTED FOR ROTATION PROPORTIONAL TO THE ROTATION OF THE XEROGRAPHIC DRUM AND MEANS OPERATED BY THE FIRST AND SECOND CAM TO ACTUATE THE RATCHET WHEELS SEQUENTIALLY SO THAT THE WEB IS ADVANCED BY THE CLEANING ROLL AND THEN TAKEN UP BY THE TAKE-UP ROLL TO THEREBY CONTINUOUSLY SUPPLY CLEAN MATERIAL TO THE DRUM SURFACE.
Claim 2
Dependent Claim
166 words
IN A XEROGRAPHIC REPRODUCING APPARATUS WHEREIN A XEROGRAPHIC DRUM IS ROTATED THROUGH A SERIES OF PROCESSING STATIONS INCLUDING A DRUM CLEANING STATION HAVING A SERIES OF PARALLEL SHAFTS AND A WEB OF FIBROUS MATERIAL EXTENDING FROM A SUPPLY ROLL MOUNTED ON ONE OF THE SHAFTS TO A TAKEUP ROLL MOUNTED ON ANOTHER OF THE SHAFTS AND URGED INTO RUBBING CONTACT WITH THE SURFACE OF THE XEROGRAPHIC DRUM BY A CLEANING ROLL MOUNTED ON ANOTHER OF THE SHAFTS, THE IMPROVEMENT COMPRISING A FIRST RATCHET WHEEL SECURED TO THE SHAFT OF THE CLEANING ROLLER, A SECOND RATCHET WHEEL SECURED TO THE SHAFT OF THE TAKEUP ROLLER, AND A FIRST CAM AND A SECOND CAM MOUNTED FOR ROTATION PROPORTIONAL TO THE ROTATION OF THE XEROGRAPHIC DRUM AND MEANS OPERATED BY THE FIRST AND SECOND CAM TO ACTUATE THE RATCHET WHEELS SEQUENTIALLY SO THAT THE WEB IS ADVANCED BY THE CLEANING ROLL AND THEN TAKEN UP BY THE TAKE-UP ROLL TO THEREBY CONTINUOUSLY SUPPLY CLEAN MATERIAL TO THE DRUM SURFACE.
References Cited (Backward Citations)
US3190198A
Cited
US3099856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |