US3195086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated inductor
Assignee: Western Union Telegraph Co
•
Filing: 1962-05-16
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Granted: 1965-07-13
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Roland C Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:19
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/043; H01F27/00; H01F27/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
AN INDICATOR OF THE CHARACTER DESCRIBED HAVING A SUBSTANTIALLY CONSTANT INDUCTANCE OVER A WIDE TEMPERATURE RANGE, COMPRISING A APIR OF CUP-SHAPED CORE MEMBERS FORMED OF A PARAMAGNETIC MATERIAL HAVING A TEMPERATURE COEFFICIENT OF PERMEABILITY OF ONE POLARITY, EACH OF SAID CORE MEMBERS HAVING AN OUTER CYLINDRICAL WALL AND A CENTRAL CYLINDRICAL, AXIAL PROJECTION, SAID CORE MEMBERS BEING DISPOSED IN AXIAL ALIGNEMNT, THE CENTRAL PROJECTIONS BEING AXIALLY ALIGNED WITH AND OPPOSING EACH OTHER WITH A CIRCULAR FIRST GAP BETWEEN FACING ENDS OF THE CENTRAL PROJECTIONS AND AN ANNULAR SECOND GAP BETWEEN FACING EDGES OF THE CYLINDRICAL WALLS, THE FIRST GAP BEING WIDER THAN THE SECOND GAP, THE WIDER FIRST GAP CONTROLLING PERMEABILITY OF SAID CORE MEMBERS WHILE THE NARROW SECOND GAP PREVENTS STRAY FLUX LEAKAGE BEYOND SAID WALLS, A COIL SPOOL HAVING A PAIR OF ANNULAR END FLANGES POSITIONED IN A SPACE BETWEEN SAID CORE PROJECTIONS AND CYLINDRICAL WALLS, A WIRE COIL WOUND ON SAID SPOOL, SAID CORE MEMBERS HAVING CIRCUMFERENTIALLY SPACED END OPENINGS COMMUNICATING WITH SAID SPACE, SAID END FLANGES HAVING CIRCUMFERENTIALLY SPACED SLOTS REGISTER-
Claim 2
Dependent Claim
175 words
AN INDICATOR OF THE CHARACTER DESCRIBED HAVING A SUBSTANTIALLY CONSTANT INDUCTANCE OVER A WIDE TEMPERATURE RANGE, COMPRISING A APIR OF CUP-SHAPED CORE MEMBERS FORMED OF A PARAMAGNETIC MATERIAL HAVING A TEMPERATURE COEFFICIENT OF PERMEABILITY OF ONE POLARITY, EACH OF SAID CORE MEMBERS HAVING AN OUTER CYLINDRICAL WALL AND A CENTRAL CYLINDRICAL, AXIAL PROJECTION, SAID CORE MEMBERS BEING DISPOSED IN AXIAL ALIGNEMNT, THE CENTRAL PROJECTIONS BEING AXIALLY ALIGNED WITH AND OPPOSING EACH OTHER WITH A CIRCULAR FIRST GAP BETWEEN FACING ENDS OF THE CENTRAL PROJECTIONS AND AN ANNULAR SECOND GAP BETWEEN FACING EDGES OF THE CYLINDRICAL WALLS, THE FIRST GAP BEING WIDER THAN THE SECOND GAP, THE WIDER FIRST GAP CONTROLLING PERMEABILITY OF SAID CORE MEMBERS WHILE THE NARROW SECOND GAP PREVENTS STRAY FLUX LEAKAGE BEYOND SAID WALLS, A COIL SPOOL HAVING A PAIR OF ANNULAR END FLANGES POSITIONED IN A SPACE BETWEEN SAID CORE PROJECTIONS AND CYLINDRICAL WALLS, A WIRE COIL WOUND ON SAID SPOOL, SAID CORE MEMBERS HAVING CIRCUMFERENTIALLY SPACED END OPENINGS COMMUNICATING WITH SAID SPACE, SAID END FLANGES HAVING CIRCUMFERENTIALLY SPACED SLOTS REGISTER-
References Cited (Backward Citations)
US3028570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |