US3139921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming end turns on a wire wound unit
Assignee: Bendix Corp
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Filing: 1961-03-06
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Granted: 1964-07-07
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 George I Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:38
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/20; H02K15/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN APPARATUS FOR COMPRESSING WIRES AT OPPOSITE ENDS OF A CIRCULAR CORE; COMPRISING A PAIR OF SPLIT BEARINGS, MEANS FOR SUPPORTING THE WIRE TURNS AT OPPOSITE ENDS OF THE CORE, ONE OF SAID SPLIT BEARINGS HAVING A FIRST BORE FOR RECEIVING THE CIRCULAR CORE AND A SECOND BORE OF SMALLER DIAMETER THAN THE FIRST BORE, THE OTHER OF SAID SPLIT BEARINGS HAVING A THIRD BORE OF SAID SMALLER DIAMETER, MEANS SLIDABLY MOUNTED IN SAID SECOND AND THIRD BORES FOR APPLYING COMPRESSIVE FORCES TO THE WIRE TURNS AT THE OPPOSITE ENDS OF THE CORE SO AS TO CAUSE SAID WIRE TURNS TO BE AXIALLY COMPRESSED WITHIN SAID SECOND AND THIRD BORES TO AN OUTER DIAMETER WHICH IS EFFECTIVELY LIMITED BY SAID SECOND AND THIRD BORES TO SAID SMALLER DIAMETER, AND SAID FIRST-MENTIONED SUPPORTING MEANS INCLUDING FORMING ELEMENTS TO LIMIT THE INNER DIAMETER OF THE COMPRESSED WIRE TURNS AT THE OPPOSITE ENDS OF SAID CORE.
Claim 2
Independent Claim
153 words
AN APPARATUS FOR COMPRESSING WIRES AT OPPOSITE ENDS OF A CIRCULAR CORE; COMPRISING A PAIR OF SPLIT BEARINGS, MEANS FOR SUPPORTING THE WIRE TURNS AT OPPOSITE ENDS OF THE CORE, ONE OF SAID SPLIT BEARINGS HAVING A FIRST BORE FOR RECEIVING THE CIRCULAR CORE AND A SECOND BORE OF SMALLER DIAMETER THAN THE FIRST BORE, THE OTHER OF SAID SPLIT BEARINGS HAVING A THIRD BORE OF SAID SMALLER DIAMETER, MEANS SLIDABLY MOUNTED IN SAID SECOND AND THIRD BORES FOR APPLYING COMPRESSIVE FORCES TO THE WIRE TURNS AT THE OPPOSITE ENDS OF THE CORE SO AS TO CAUSE SAID WIRE TURNS TO BE AXIALLY COMPRESSED WITHIN SAID SECOND AND THIRD BORES TO AN OUTER DIAMETER WHICH IS EFFECTIVELY LIMITED BY SAID SECOND AND THIRD BORES TO SAID SMALLER DIAMETER, AND SAID FIRST-MENTIONED SUPPORTING MEANS INCLUDING FORMING ELEMENTS TO LIMIT THE INNER DIAMETER OF THE COMPRESSED WIRE TURNS AT THE OPPOSITE ENDS OF SAID CORE.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |