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US3112474A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic signal distribution system

Assignee: Unisys Corp
•
Filing: 1958-04-25
•
Granted: 1963-11-26
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Expires: 1978-04-25
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Abstract

No abstract record available.

Inventors

  • 👤 Chen Tung Chang
  • 👤 Oscar B Stram

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 21:52
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/12; G11B15/14; G11B20/00; G11B20/22; G11B5/00; G11B5/127; G11B5/17; H; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/81

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 191 words
A SIGNAL DISTRIBUTING DEVICE COMPRISING A PLURALITY OF U-SHAPED MAGNETIC CORES EACH HAVING FIRST AND SECOND CORE LEGS COMPRISING TWO POLE PIECES SEPARATED BY AN AIR GAP, SAID CORES BEING ARRANGED ON TWO PARALLEL PLANES DISPLACED FROM EACH OTHER BY AN APERTURE, A NONMAGNETIC ROTATABLE DISC POSITIONED WITHIN SAID APERTURE AND HAVING A BAR OF MAGNETIC MATERIAL EMBEDDED IN EACH OF ITS PLANE SURFACES, A COMMON PRIMARY WINDING COUPLING ALL SAID FIRST LEGS OF THE MAGNETIC CORES SITUATED ON A COMMON PLANE, A SEPARATE SECONDARY WINDING COUPLED TO EACH OF SAID SECOND LEGS OF SAID PLURALITY OF CORES, SAID PRIMARY AND SECONDARY WINDINGS HAVING NEGLIGIBLE MAGNETIC COUPLING THEREBETWEEN DUE TO SAID AIR GAP, SAID BARS OF MAGNETIC MATERIAL BEING SO POSITIONED WITH RESPECT TO EACH OTHER AND TO SAID CORES THAT THE ROTATION OF SAID DISC ESTABLISHES A FLUX PATH BETWEEN THE PRIMARY AND SECONDARY WINDINGS OF THE CORES ON BOTH OF SAID PLANES, SAID ESTABLISHMENT OF FLUX PATHS IN ONE OF SAID PLANES BEING DISPLACED IN TIME FROM THAT IN THE OTHER OF SAID PLANES SUCH THAT A FLUX PATH IS PROVIDED ALTERNATELY FOR THE CORES SITUATED ON DIFFERENT PLANES.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-11-25 1967-05-27 1967-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-11-25 1971-05-27 1971-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-11-25 1975-05-27 1975-11-26 $7700.00 Window Closed / Lapsed

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