US3235200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape tens ion device
Assignee: —
•
Filing: —
•
Granted: 1966-02-15
•
Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A TAPE TENSIONING SYSTEM INCLUDING A SUPPLY REEL AND A BRAKE THEREFOR, THE COMBINATION COMPRISING: ELECTRO-MAGNETIC MEANS FOR IMPOSING A FIRST FORCE ON SAID BRAKE TO PLACE SAID TAPE UNDER TENSION; VARIABLE MEANS FOR SUPPLYING CURRENT TO SAID ELECTROMAGNETIC MEANS TO ESTABLISH SAID FIRST FORCE; AND MEANS FOR SENSING THE TENSION OF SAID TAPE AND DEVELOPING A SECOND FORCE VARYING AS A FUNCTION OF SAID TENSION; SAID ELECTRO-MAGNETIC MEANS, SAID SENSING MEANS AND SAID BRAKE BEING COUPLED TOGETHER, WITH SAID FIRST AND SECOND FORCES ACTING IN OPPOSITION UPON SAID BRAKE.
Claim 2
Dependent Claim
91 words
IN A TAPE TENSIONING SYSTEM INCLUDING A SUPPLY REEL AND A BRAKE THEREFOR, THE COMBINATION COMPRISING: ELECTRO-MAGNETIC MEANS FOR IMPOSING A FIRST FORCE ON SAID BRAKE TO PLACE SAID TAPE UNDER TENSION; VARIABLE MEANS FOR SUPPLYING CURRENT TO SAID ELECTROMAGNETIC MEANS TO ESTABLISH SAID FIRST FORCE; AND MEANS FOR SENSING THE TENSION OF SAID TAPE AND DEVELOPING A SECOND FORCE VARYING AS A FUNCTION OF SAID TENSION; SAID ELECTRO-MAGNETIC MEANS, SAID SENSING MEANS AND SAID BRAKE BEING COUPLED TOGETHER, WITH SAID FIRST AND SECOND FORCES ACTING IN OPPOSITION UPON SAID BRAKE.
References Cited (Backward Citations)
US1103152A
Cited
US2102761A
Cited
US2345765A
Cited
US2558594A
Cited
US2858487A
Cited
US3076618A
Cited
US3169215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |