US3266196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cleaning means
Assignee: Unisys Corp
•
Filing: 1962-10-22
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Granted: 1966-08-16
•
Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene B Barcaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/50; G11B23/502; B; B08; B08B; B08B5/00; B08B5/04; B08B5/043; B08B5/046; B24; B24B; B24B21/00; B24B21/004; B24B21/02; B24B21/025; B24B7/00; B24B7/10; B24B7/12; B24B7/13; G11B5/00; G11B5/62; G11B5/68; G11B5/70; Y; Y10; Y10S; Y10S15/00; Y10S15/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A TAPE CLEANING DEVICE FOR CLEANING A MAGNETIC TAPE COMPRISING A VACUUM MEANS, A CLEANING TAPE HAVING PERFORATIONS THROUGHOUT ITS WIDTH AND A COATING OF DRY POLISHING AGENT IN THE AREA BETWEEN SAID PERFORATIONS ON THE TOP SIDE OF SAID CLEANING TAPE, DRIVE MEANS FOR MOVING SAID MAGNETIC TAPE AND SAID CLEANING TAPE IN THE SAME DIRECTION AND OVER SAID VACUUM MEANS WITH THE BOTTOM SIDE OF SAID CLEANING TAPE CONTACTING SAID VACUUM MEANS AND SAID TOP SIDE OF SAID CLEANING TAPE SIMULTANEOUSLY CONTACTING SAID MAGNETIC TAPE WHILE SAID TAPES MOVE OVER SAID VACUUM MEANS, SAID DRIVE MEANS BEING OPERATIVE TO MOVE SAID CLEANING TAPE OVER SAID VACUUM MEANS AT A LOWER SPEED THAN SAID MAGNETIC TAPE FOR ABRASIVELY CONTACTING SAID MAGNETIC TAPE DURING THE MOVEMENT THEREOF TO LOOSEN PARTICLES FROM SAID MAGNETIC TAPE SO THAT THE LOOSENED PARTICLES PASS THROUGH SAID PERFORATIONS INTO SAID VACUUM MEANS.
Claim 2
Dependent Claim
147 words
A TAPE CLEANING DEVICE FOR CLEANING A MAGNETIC TAPE COMPRISING A VACUUM MEANS, A CLEANING TAPE HAVING PERFORATIONS THROUGHOUT ITS WIDTH AND A COATING OF DRY POLISHING AGENT IN THE AREA BETWEEN SAID PERFORATIONS ON THE TOP SIDE OF SAID CLEANING TAPE, DRIVE MEANS FOR MOVING SAID MAGNETIC TAPE AND SAID CLEANING TAPE IN THE SAME DIRECTION AND OVER SAID VACUUM MEANS WITH THE BOTTOM SIDE OF SAID CLEANING TAPE CONTACTING SAID VACUUM MEANS AND SAID TOP SIDE OF SAID CLEANING TAPE SIMULTANEOUSLY CONTACTING SAID MAGNETIC TAPE WHILE SAID TAPES MOVE OVER SAID VACUUM MEANS, SAID DRIVE MEANS BEING OPERATIVE TO MOVE SAID CLEANING TAPE OVER SAID VACUUM MEANS AT A LOWER SPEED THAN SAID MAGNETIC TAPE FOR ABRASIVELY CONTACTING SAID MAGNETIC TAPE DURING THE MOVEMENT THEREOF TO LOOSEN PARTICLES FROM SAID MAGNETIC TAPE SO THAT THE LOOSENED PARTICLES PASS THROUGH SAID PERFORATIONS INTO SAID VACUUM MEANS.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |