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US3271658A Expired / Lapsed US ⏱️ 0.0 years remaining

Thin film superconducting transformer

Assignee: International Business Machines Corp
•
Filing: 1962-05-25
•
Granted: 1966-09-06
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Expires: 1982-05-25
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Abstract

No abstract record available.

Inventors

  • 👤 Cheng Tsung-Hsien

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 03:39
CPC Classifications
H; H01; H01F; H01F36/00; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H01F17/00; H01F17/0006; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 147 words
A COMPOSITE TRANSFORMER COMPRISING, A PRIMARY INPUT, A SECONDARY OUTPUT, A PLURALITY OF INDIVIDUAL TRANSFORMERS, EACH INDIVIDUAL TRANSFORMER HAVING A PRIMARY CONDUCTOR, AND A SECONDARY CONDUCTOR JUXTAPOSED TO SAID PRIMARY CONDUCTOR, SAID SECONDARY CONDUCTORS BEING DIVIDED INTO FIRST AND SECOND GROUPS, FIRST MEANS CONNECTING SAID FIRST GROUP OF SECONDARY CONDUCTORS IN PARALLEL WITH SAID SECONDARY OUTPUT, SECOND MEANS CONNECTING SAID SECOND GROUP OF SECONDARY CONDUCTORS IN PARALLEL, SAID SECOND MEANS BEING POSITIONED ABOVE SAID FIRST MEANS, CONNECTING MEANS CONNECTING SAID SECOND MEANS IN PARALLEL WITH SAID SECONDARY OUTPUT SO THAT CURRENT IN ADJACENT SECONDARY CONDUCTORS FLOW IN OPPOSITE DIRECTIONS, THIRD MEANS CONNECTING SAID PRIMARY CONDUCTORS IN SERIES WITH SAID PRIMARY INPUT, SAID MEANS BEING POSITIONED OVER SAID FIRST AND SAID SECOND MEANS, AND A SUPERCONDUCTIVE SHIELD BENEATH EACH CONDUCTOR WHERE THE ALGEBRAIC SUM OF THE SHORT CIRCUIT CURRENTS IN THE VARIOUS LAYERS OF CIRCUITRY IS NOT ZERO.
Claim 2
Dependent Claim 147 words
A COMPOSITE TRANSFORMER COMPRISING, A PRIMARY INPUT, A SECONDARY OUTPUT, A PLURALITY OF INDIVIDUAL TRANSFORMERS, EACH INDIVIDUAL TRANSFORMER HAVING A PRIMARY CONDUCTOR, AND A SECONDARY CONDUCTOR JUXTAPOSED TO SAID PRIMARY CONDUCTOR, SAID SECONDARY CONDUCTORS BEING DIVIDED INTO FIRST AND SECOND GROUPS, FIRST MEANS CONNECTING SAID FIRST GROUP OF SECONDARY CONDUCTORS IN PARALLEL WITH SAID SECONDARY OUTPUT, SECOND MEANS CONNECTING SAID SECOND GROUP OF SECONDARY CONDUCTORS IN PARALLEL, SAID SECOND MEANS BEING POSITIONED ABOVE SAID FIRST MEANS, CONNECTING MEANS CONNECTING SAID SECOND MEANS IN PARALLEL WITH SAID SECONDARY OUTPUT SO THAT CURRENT IN ADJACENT SECONDARY CONDUCTORS FLOW IN OPPOSITE DIRECTIONS, THIRD MEANS CONNECTING SAID PRIMARY CONDUCTORS IN SERIES WITH SAID PRIMARY INPUT, SAID MEANS BEING POSITIONED OVER SAID FIRST AND SAID SECOND MEANS, AND A SUPERCONDUCTIVE SHIELD BENEATH EACH CONDUCTOR WHERE THE ALGEBRAIC SUM OF THE SHORT CIRCUIT CURRENTS IN THE VARIOUS LAYERS OF CIRCUITRY IS NOT ZERO.

References Cited (Backward Citations)

US2915721A Cited
US2987631A Cited
US3185862A Cited
US3184674A Cited
US3207921A Cited
US3214679A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-09-05 1970-03-07 1970-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-09-05 1974-03-07 1974-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-09-05 1978-03-07 1978-09-06 $7700.00 Window Closed / Lapsed

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