US3244956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position control system
Assignee: Schneider Electric USA Inc
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Filing: 1963-02-07
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Granted: 1966-04-05
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Expires: 1983-02-07
Abstract
No abstract record available.
Inventors
- 👤 Robert C Mierendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:56
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/204; G01D5/2073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ELECTRIC POSITIONING INDICATING APPARATUS, COMPRISING: AN ELONGATED PRIMARY WINDING HAVING A PAIR OF SPACED PRIMARY TERMINALS, AN ALTERNATING CURRENT SOURCE, AT LEAST ONE TAP ON THE PRIMARY WINDING LOCATED BETWEEN THE PRIMARY TERMINALS, SAID TAP AND PRIMARY TERMINALS THEREBY DIVIDING THE PRIMARY WINDING INTO AT LEAST TOW SECTIONS EACH SECTION HAVING A PREDETERMINED INDUCTANCE AND RESISTANCE RATIO, MEANS CONNECTING THE TAP AND PRIMARY TERMINALS TO SAID SOURCE SO THE CURRENT FLOW FROM SAID SOURCE TO THE SECTIONS THROUGH THE TAP EQUALS THE SUM OF THE CURRENT FLOW THROUGH SAID SECTIONS, A SECONDARY WINDING INDUCTIVELY COUPLED TO THE PRIMAR WINDING AND AXIALLY MOVABLE RELATIVE TO SAID SECTIONS AND HAVIG A PAIR OUTPUT TERMINALS, SAID SECONDARY WINDING HAVING A ALTERNATING VOLTAGE INDUCED THEREIN, THE POTENTIAL AND PHASE OF WHICH WILL DEPEND ON THE POSITION OF THE SECONDARY WINDING RELATIVE TO THE TAP ON THE PRIMARY WINDING, AN IMPED-
Claim 2
Dependent Claim
147 words
AN ELECTRIC POSITIONING INDICATING APPARATUS, COMPRISING: AN ELONGATED PRIMARY WINDING HAVING A PAIR OF SPACED PRIMARY TERMINALS, AN ALTERNATING CURRENT SOURCE, AT LEAST ONE TAP ON THE PRIMARY WINDING LOCATED BETWEEN THE PRIMARY TERMINALS, SAID TAP AND PRIMARY TERMINALS THEREBY DIVIDING THE PRIMARY WINDING INTO AT LEAST TOW SECTIONS EACH SECTION HAVING A PREDETERMINED INDUCTANCE AND RESISTANCE RATIO, MEANS CONNECTING THE TAP AND PRIMARY TERMINALS TO SAID SOURCE SO THE CURRENT FLOW FROM SAID SOURCE TO THE SECTIONS THROUGH THE TAP EQUALS THE SUM OF THE CURRENT FLOW THROUGH SAID SECTIONS, A SECONDARY WINDING INDUCTIVELY COUPLED TO THE PRIMAR WINDING AND AXIALLY MOVABLE RELATIVE TO SAID SECTIONS AND HAVIG A PAIR OUTPUT TERMINALS, SAID SECONDARY WINDING HAVING A ALTERNATING VOLTAGE INDUCED THEREIN, THE POTENTIAL AND PHASE OF WHICH WILL DEPEND ON THE POSITION OF THE SECONDARY WINDING RELATIVE TO THE TAP ON THE PRIMARY WINDING, AN IMPED-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |