Patent US3430120A successfully refreshed from Google Patents.
US3430120A
Expired / Lapsed
US
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Electromagnetic positioning mechanism
Assignee: NEC Corp
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Filing: 1966-07-18
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Granted: 1969-02-25
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Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Yasukuni Kotaka
- 👤 Takeshi Arakawa
- 👤 Takemi Kamata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/40; H; H03; H03M; H03M1/00; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37007; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A POSITIONING MECHANISM FOR SUBSTANTIALLY INSTANTANEOUSLY CONVERTING BINARY INPUT SIGNALS INTO A PHYSICAL DISPLACEMENT COMPRISING: A DUAL ELECTROMAGNET STRUCTURE INCLUDING A STATOR HAVING AN OPENING AT EACH END; A PAIR OF EXCITATION WINDINGS BEING ARRANGED AT SPACED INTERVALS WITHIN SAID STATOR; A PAIR OF ARMATURES BEING POSITIONED AT OPPOSITE ENDS OF SAID STATOR AND BEING FREE TO EXPERIENCE RECIPROCAL MOTION WITHIN AN ASSOCIATED OPENING; RIGID ROD MEANS COUPLED BETWEEN SAID ARMATURES; A PLUNGER MEMBER POSITIONED IN AXIAL ALIGNMENT WITH SAID ARMATURES AND BEING FREE TO UNDERGO RECIPROCAL MOVEMENT WITHIN SAID STATOR UNDER SELECTIVE CONTROL OF SAID EXCITATION WINDINGS; SECOND RIGID ROD MEANS BEING COUPLED TO SAID PLUNGER; THE DISTANCE BETWEEN SAID ARMATURES BEING GREATER THAN
Claim 2
Dependent Claim
115 words
A POSITIONING MECHANISM FOR SUBSTANTIALLY INSTANTANEOUSLY CONVERTING BINARY INPUT SIGNALS INTO A PHYSICAL DISPLACEMENT COMPRISING: A DUAL ELECTROMAGNET STRUCTURE INCLUDING A STATOR HAVING AN OPENING AT EACH END; A PAIR OF EXCITATION WINDINGS BEING ARRANGED AT SPACED INTERVALS WITHIN SAID STATOR; A PAIR OF ARMATURES BEING POSITIONED AT OPPOSITE ENDS OF SAID STATOR AND BEING FREE TO EXPERIENCE RECIPROCAL MOTION WITHIN AN ASSOCIATED OPENING; RIGID ROD MEANS COUPLED BETWEEN SAID ARMATURES; A PLUNGER MEMBER POSITIONED IN AXIAL ALIGNMENT WITH SAID ARMATURES AND BEING FREE TO UNDERGO RECIPROCAL MOVEMENT WITHIN SAID STATOR UNDER SELECTIVE CONTROL OF SAID EXCITATION WINDINGS; SECOND RIGID ROD MEANS BEING COUPLED TO SAID PLUNGER; THE DISTANCE BETWEEN SAID ARMATURES BEING GREATER THAN
References Cited (Backward Citations)
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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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |