US3109310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autolubricated fluid bearing force measuring instrument
Assignee: North American Aviation Corp
•
Filing: 1957-11-20
•
Granted: 1963-11-05
•
Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 John M Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:37
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/13; G01P15/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN INSTRUMENT FOR MEASURING FORCES, COMPRISING A FRAME; A FORCE RECEIVING ELEMENT HAVING A CYLINDRICAL SURFACE; A CYLINDRICAL BEARING ELEMENT FIXED TO SAID FRAME AND HAVING A RADIUS DIFFERING SUFFICIENTLY FROM THAT OF SAID FORCE RECEIVING ELEMENT TO DEFINE A NARROW ANNULAR GAP THEREBETWEEN AND ADAPTED TO HAVE SAID FORCE RECEIVING ELEMENT MOUNTED THEREON, SAID FORCE RECEIVING ELEMENT AND BEARING ELEMENT BEING IMMERSED IN A GAS; MEANS FOR RESTRAINING ONE OF SAID ELEMENTS AGAINST ROTATION RELATIVE TO SAID FRAME, ROTATIONAL MEANS FOR ROTATING ONE OF SAID ELEMENTS RELATIVE TO THE OTHER, WHEREBY SAID
Claim 2
Dependent Claim
93 words
AN INSTRUMENT FOR MEASURING FORCES, COMPRISING A FRAME; A FORCE RECEIVING ELEMENT HAVING A CYLINDRICAL SURFACE; A CYLINDRICAL BEARING ELEMENT FIXED TO SAID FRAME AND HAVING A RADIUS DIFFERING SUFFICIENTLY FROM THAT OF SAID FORCE RECEIVING ELEMENT TO DEFINE A NARROW ANNULAR GAP THEREBETWEEN AND ADAPTED TO HAVE SAID FORCE RECEIVING ELEMENT MOUNTED THEREON, SAID FORCE RECEIVING ELEMENT AND BEARING ELEMENT BEING IMMERSED IN A GAS; MEANS FOR RESTRAINING ONE OF SAID ELEMENTS AGAINST ROTATION RELATIVE TO SAID FRAME, ROTATIONAL MEANS FOR ROTATING ONE OF SAID ELEMENTS RELATIVE TO THE OTHER, WHEREBY SAID
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |