Patent US3134938A successfully refreshed from Google Patents.
US3134938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating motor control system
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-07-05
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Granted: 1964-05-26
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Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Walter A Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/12; H02P; H02P7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTROMAGNETIC SYSTEM COMPRISING: A MAGNETIC MEMBER ADAPTED FOR RECIPROCAL MOVEMENT; A SERIES ARRANGEMENT OF A DIRECT CURRENT POWER SUPPLY, AND A FIRST POWER COIL AND FIRST TRANSISTOR SWITCH IN PARALLEL WITH A SECOND POWER COIL AND SECOND TRANSISTOR SWITCH, SAID POWER COILS BEING DISPOSED ADJACENTLY WITH A COMMON AXIS AND SAID MAGNETIC MEMBER SUPPORTED FOR RECIPROCAL MOVEMENT ALONG THAT AXIS; AND ELECTRICAL TIMING MEANS CONNECTED TO SAID TRANSISTOR SWITCHES AND ADAPTED TO CONTINUOUSLY AND ALTERNATELY SWITCH THE TRANSISTOR SWITCHES ON TO THEREBY ALTERNATELY ENERGIZE THE POWER COILS WHEREBY THE MAGNETIC MEMBER IS RECIPROCATED.
Claim 2
Dependent Claim
94 words
AN ELECTROMAGNETIC SYSTEM COMPRISING: A MAGNETIC MEMBER ADAPTED FOR RECIPROCAL MOVEMENT; A SERIES ARRANGEMENT OF A DIRECT CURRENT POWER SUPPLY, AND A FIRST POWER COIL AND FIRST TRANSISTOR SWITCH IN PARALLEL WITH A SECOND POWER COIL AND SECOND TRANSISTOR SWITCH, SAID POWER COILS BEING DISPOSED ADJACENTLY WITH A COMMON AXIS AND SAID MAGNETIC MEMBER SUPPORTED FOR RECIPROCAL MOVEMENT ALONG THAT AXIS; AND ELECTRICAL TIMING MEANS CONNECTED TO SAID TRANSISTOR SWITCHES AND ADAPTED TO CONTINUOUSLY AND ALTERNATELY SWITCH THE TRANSISTOR SWITCHES ON TO THEREBY ALTERNATELY ENERGIZE THE POWER COILS WHEREBY THE MAGNETIC MEMBER IS RECIPROCATED.
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |