US3091794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cleaning apparatus
Assignee: Ampex Corp
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Filing: 1961-02-21
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Granted: 1963-06-04
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Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert F Pillsbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:10
CPC Classifications
G; G03; G03D; G03D15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A TAPE CLEANING APPARATUS FOR A TRANSPORT OF THE CLASS WHEREIN A TENSIONED TAPE IS MOVED ALONG A FIRST PREDETERMINED PATH BETWEEN A PAIR OF SPACED SUPPORT ELEMENTS, SAID APPARATUS COMPRISING: MEANS MOUNTED ON SAID TRANSPORT AND APPLYING A PREDETERMINED FORCE FOR URGING SAID TAPE OUT OF SAID FIRST PATH BETWEEN SAID ELEMENTS AND INTO A SECOND PREDETERMINED PATH LATERALLY DISPLACED THEREFORM; AND A NON-RESILIENT SCRAPING MEMBER MOUNTED ON SAID TRANSPORT AND PROVIDED WITH A SMOOTH TAPE-ENGAGING SURFACE FOR ENGAGEMENT WITH SAID TAPE IN SAID SECOND PATH, SAID MEMBER ALSO BEING PROVIDED WITH A SCRAPING BLADE DEFINING AN EDGE OF SAID SURFACE ON THE SIDE THEREOF THAT IS UPSTREAM WITH RESPECT TO THE DIRECTION OF TAPE MOTION ON SAID SECOND PATH; WHEREBY AN EXCESS OF TENSION IN SAID TAPE OVERCOMES SAID PREDETERMINED URGING FORCE AND DAMAGE TO SAID TAPE IS AVOIDED.
Claim 2
Dependent Claim
141 words
A TAPE CLEANING APPARATUS FOR A TRANSPORT OF THE CLASS WHEREIN A TENSIONED TAPE IS MOVED ALONG A FIRST PREDETERMINED PATH BETWEEN A PAIR OF SPACED SUPPORT ELEMENTS, SAID APPARATUS COMPRISING: MEANS MOUNTED ON SAID TRANSPORT AND APPLYING A PREDETERMINED FORCE FOR URGING SAID TAPE OUT OF SAID FIRST PATH BETWEEN SAID ELEMENTS AND INTO A SECOND PREDETERMINED PATH LATERALLY DISPLACED THEREFORM; AND A NON-RESILIENT SCRAPING MEMBER MOUNTED ON SAID TRANSPORT AND PROVIDED WITH A SMOOTH TAPE-ENGAGING SURFACE FOR ENGAGEMENT WITH SAID TAPE IN SAID SECOND PATH, SAID MEMBER ALSO BEING PROVIDED WITH A SCRAPING BLADE DEFINING AN EDGE OF SAID SURFACE ON THE SIDE THEREOF THAT IS UPSTREAM WITH RESPECT TO THE DIRECTION OF TAPE MOTION ON SAID SECOND PATH; WHEREBY AN EXCESS OF TENSION IN SAID TAPE OVERCOMES SAID PREDETERMINED URGING FORCE AND DAMAGE TO SAID TAPE IS AVOIDED.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |