US3262079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable inductor
Assignee: International Standard Electric Corp
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Filing: 1964-05-27
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Granted: 1966-07-19
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Glover William Frank
- 👤 Bendall Jack George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:28
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/043; H01F29/00; H01F29/08; H01F29/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN ADJUSTABLE CONDUCTOR COMPRISING TWO HALF CORES OF MAGNETIC MATERIAL FIXED RELATIVE TO EACH OTHER, FORMING THEREBETWEEN AN AIR GAP, EACH HALF CORE HAVING CENTRAL BORES; A SLUG OF MAGNETIC MATERIAL POSITIONED WITHIN THE CENTRAL BORE OF ONE OF SAID HALF CORES AND ADAPTED TO MOVE WITHIN SAID BORES; A BUSH OF PLASTIC MATERIAL POSITIONED WITHIN THE CENTRAL BORE OF THE OTHER OF SAID HALF CORE, SAID BUSH HAVING AN AXIAL BORE THERETHROUGH AND A PORTION INTERMEDIATE THE ENDS OF SAID AXIAL BORE TO PRESENT A CONSTRICTION THEREAT; AND MEANS CARRIED BY SAID SLUG AND COOPERATING WITH SAID CONSTRICTION FOR AXIALLY ADJUSTING THE POSITION OF SAID SLUG RELATIVE TO THE AIR GAP.
Claim 2
Dependent Claim
112 words
AN ADJUSTABLE CONDUCTOR COMPRISING TWO HALF CORES OF MAGNETIC MATERIAL FIXED RELATIVE TO EACH OTHER, FORMING THEREBETWEEN AN AIR GAP, EACH HALF CORE HAVING CENTRAL BORES; A SLUG OF MAGNETIC MATERIAL POSITIONED WITHIN THE CENTRAL BORE OF ONE OF SAID HALF CORES AND ADAPTED TO MOVE WITHIN SAID BORES; A BUSH OF PLASTIC MATERIAL POSITIONED WITHIN THE CENTRAL BORE OF THE OTHER OF SAID HALF CORE, SAID BUSH HAVING AN AXIAL BORE THERETHROUGH AND A PORTION INTERMEDIATE THE ENDS OF SAID AXIAL BORE TO PRESENT A CONSTRICTION THEREAT; AND MEANS CARRIED BY SAID SLUG AND COOPERATING WITH SAID CONSTRICTION FOR AXIALLY ADJUSTING THE POSITION OF SAID SLUG RELATIVE TO THE AIR GAP.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |