US3366903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tensioning device
Assignee: Vibrac Corp
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Filing: 1965-12-06
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Granted: 1968-01-30
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Searle
- 👤 Robert F Searle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:20
CPC Classifications
F; F16; F16D; F16D63/00; F16D63/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
APPARATUS COMPRISING A HOLLOW MAGNETIC CASE, A FIRST MAGNETIC ROTOR SUPPORT SECURED IN SAID CASE, A SECOND MAGNETIC ROTOR SUPPORT DISPOSED IN SAID CASE, MEANS SECURING SAID SECOND ROTOR SUPPORT IN SPACED END TO END RELATION WITH SAID FIRST ROTOR SUPPORT, A ROTOR COMPRISING A SHAFT ROTATABLY SUPPORTED BY SAID SUPPORTS AND A MAGNETIC DISC MOUNTED ON AND ROTATABLE WITH SAID SHAFT, MEANS COOPERATING WITH SAID SUPPORTS AND SAID SHAFT TO DEFINE A CHAMBER BETWEEN THE ENDS OF SAID SUPPORTS, SAID DISC EXTENDING INTO SAID CHAMBER, A SUPPLY OF MAGNETIC POWDER IN SAID
Claim 2
Dependent Claim
93 words
APPARATUS COMPRISING A HOLLOW MAGNETIC CASE, A FIRST MAGNETIC ROTOR SUPPORT SECURED IN SAID CASE, A SECOND MAGNETIC ROTOR SUPPORT DISPOSED IN SAID CASE, MEANS SECURING SAID SECOND ROTOR SUPPORT IN SPACED END TO END RELATION WITH SAID FIRST ROTOR SUPPORT, A ROTOR COMPRISING A SHAFT ROTATABLY SUPPORTED BY SAID SUPPORTS AND A MAGNETIC DISC MOUNTED ON AND ROTATABLE WITH SAID SHAFT, MEANS COOPERATING WITH SAID SUPPORTS AND SAID SHAFT TO DEFINE A CHAMBER BETWEEN THE ENDS OF SAID SUPPORTS, SAID DISC EXTENDING INTO SAID CHAMBER, A SUPPLY OF MAGNETIC POWDER IN SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |