Patent US3135880A successfully refreshed from Google Patents.
US3135880A
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Linear motion electromagnetic machines
Assignee: TRONICS CORP
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Filing: 1958-11-10
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Granted: 1964-06-02
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Olson
- 👤 John K Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/03; H02K41/031; H02K41/033; H02K2207/00; H02K2207/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ELECTROMAGNETIC POSITIONER COMPRISING: A MAGNETIZABLE FRAME; A ARMATURE OF FERROMAGNETIC MATERIAL MOVABLY MOUNTED WITHIN SAID FRAME; MEANS FOR GENERATING A MAGNETIC FIELD IN SAID ARMATURE; WINDINGS AT LEAST PORTIONS OF WHICH ARE INTERPOSED BETWEEN SAID FRAME AND SAID ARMATURE; A PLURALITY OF TAPS ON SAID WINIDNGS SELECTED PAIRS OF WHICH TAPS WHEN CONNECTED TO A POWER SOURCE PROVIDE A MAGNETIC CIELD IN SAID WINDINGS AT A PREDTERMINED LOCATION; FERROMAGNETIC WASHERS INTERPOSED BETWEEN SAID WINDINGS AT SAID TAPS; AND MEANS FOR CONNECTING SELECTED PAIRS OF SAID TAP TO A SOURCE OF POWER.
Claim 2
Dependent Claim
92 words
AN ELECTROMAGNETIC POSITIONER COMPRISING: A MAGNETIZABLE FRAME; A ARMATURE OF FERROMAGNETIC MATERIAL MOVABLY MOUNTED WITHIN SAID FRAME; MEANS FOR GENERATING A MAGNETIC FIELD IN SAID ARMATURE; WINDINGS AT LEAST PORTIONS OF WHICH ARE INTERPOSED BETWEEN SAID FRAME AND SAID ARMATURE; A PLURALITY OF TAPS ON SAID WINIDNGS SELECTED PAIRS OF WHICH TAPS WHEN CONNECTED TO A POWER SOURCE PROVIDE A MAGNETIC CIELD IN SAID WINDINGS AT A PREDTERMINED LOCATION; FERROMAGNETIC WASHERS INTERPOSED BETWEEN SAID WINDINGS AT SAID TAPS; AND MEANS FOR CONNECTING SELECTED PAIRS OF SAID TAP TO A SOURCE OF POWER.
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |