Patent US3130355A successfully refreshed from Google Patents.
US3130355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet
Assignee: Warner Electric Brake & Clkutc
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Filing: 1961-05-03
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Granted: 1964-04-21
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 William C Younger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTROMAGNET HAVING, IN COMBINATION, AN ELONGATED RIBBON OF CONDUCTIVE MATERIAL SPIRALLY WOUND IN A MULTIPLICITY OF TURNS TO FORM AN ANNULAR COIL, A CORE OF MAGNETIC CONDUCTIVE MATERIAL INCLUDING A GENERALLY CYLINDRICAL POLE PIECE TELESCOPED WITH SAID COIL WITH A TIGHT PRESS FIT, AND MEANS ACTING AS AN INCIDENT TO TELESCOPING OF SAID POLE PIECE AND COIL TO DEFORM A TERMINAL OF SAID COIL AND ESTABLISH A PERMANENT ELECTRICAL CONNECTION BETWEEN THE TERMINAL AND SAID POLE PIECE, SAID LAST MENTIONED MEANS COMPRISING A LUG FORMED ON AND PROJECTING RADIALLY FROM SAID POLE PIECE.
Claim 2
Dependent Claim
94 words
AN ELECTROMAGNET HAVING, IN COMBINATION, AN ELONGATED RIBBON OF CONDUCTIVE MATERIAL SPIRALLY WOUND IN A MULTIPLICITY OF TURNS TO FORM AN ANNULAR COIL, A CORE OF MAGNETIC CONDUCTIVE MATERIAL INCLUDING A GENERALLY CYLINDRICAL POLE PIECE TELESCOPED WITH SAID COIL WITH A TIGHT PRESS FIT, AND MEANS ACTING AS AN INCIDENT TO TELESCOPING OF SAID POLE PIECE AND COIL TO DEFORM A TERMINAL OF SAID COIL AND ESTABLISH A PERMANENT ELECTRICAL CONNECTION BETWEEN THE TERMINAL AND SAID POLE PIECE, SAID LAST MENTIONED MEANS COMPRISING A LUG FORMED ON AND PROJECTING RADIALLY FROM SAID POLE PIECE.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |