US3164756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable permanent magnet
Assignee: Elektro-Physik Hans Nix & Dr Ing Steingroever
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Filing: 1962-05-16
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Granted: 1965-01-05
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Erich A Steingroever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:30
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0273; H01F7/0278; H01F7/0284; Y; Y10; Y10S; Y10S116/00; Y10S116/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ADJUSTABLE PERMANENT MAGNET HOLDING SYSTEM COMPRISING (1) A PERMANENT MAGNET UNIT CONSISTING OF TWO PARALLEL PERMANENT MAGNETS HAVING AN ARCUATE SHAPE IN CROSSSECTION AND ARRANGED WITH THEIR POLES IN OPPOSITE DIRECTIONS, AND NON-MAGNETIC MEANS JOINING SAID MAGNETS, SAID UNIT BEING ROTATABLE AROUND ITS LONGITUDINAL AXIS, (2) A CYLINDRICAL STATIONARY NON-MAGNETIC HOUSING SURROUNDING SAID UNIT, AND A MAGNETIC FEED BACK PLATE, SAID PLATE FORMING THE BOTTOM OF SAID HOUSING AND SUPPORTING SAID PERMANENT MAGNET UNIT, (3) STATIONARY FEROMAGNETIC POLE PICES ARRANGED TO FORM A MAGNETIC CIRCUIT WITH OPPOSITE POLES OF SAID TWO PERMANENT MAGNETS, AND A NON-MAGNETIC SPACING MEMBER CONNECTING SAID PIECES TO A UNIT, SAID POLE PIECES DEFINING AN AIR GAP AND BEING SUPPORTED ON SAID HOUSING IN CLOSED SPACE RELATIONSHIP BUT OUT OF DIRECT CONTACT WITH SAID PERMANENT MAGNETS, AND (4) MANIPULATING MEANS MECHANICALLY CONNECTED TO SAID PERMANENT MAGNET UNIT FOR ROTATIONAL DISPLACEMENT THEREOF.
Claim 2
Dependent Claim
146 words
AN ADJUSTABLE PERMANENT MAGNET HOLDING SYSTEM COMPRISING (1) A PERMANENT MAGNET UNIT CONSISTING OF TWO PARALLEL PERMANENT MAGNETS HAVING AN ARCUATE SHAPE IN CROSSSECTION AND ARRANGED WITH THEIR POLES IN OPPOSITE DIRECTIONS, AND NON-MAGNETIC MEANS JOINING SAID MAGNETS, SAID UNIT BEING ROTATABLE AROUND ITS LONGITUDINAL AXIS, (2) A CYLINDRICAL STATIONARY NON-MAGNETIC HOUSING SURROUNDING SAID UNIT, AND A MAGNETIC FEED BACK PLATE, SAID PLATE FORMING THE BOTTOM OF SAID HOUSING AND SUPPORTING SAID PERMANENT MAGNET UNIT, (3) STATIONARY FEROMAGNETIC POLE PICES ARRANGED TO FORM A MAGNETIC CIRCUIT WITH OPPOSITE POLES OF SAID TWO PERMANENT MAGNETS, AND A NON-MAGNETIC SPACING MEMBER CONNECTING SAID PIECES TO A UNIT, SAID POLE PIECES DEFINING AN AIR GAP AND BEING SUPPORTED ON SAID HOUSING IN CLOSED SPACE RELATIONSHIP BUT OUT OF DIRECT CONTACT WITH SAID PERMANENT MAGNETS, AND (4) MANIPULATING MEANS MECHANICALLY CONNECTED TO SAID PERMANENT MAGNET UNIT FOR ROTATIONAL DISPLACEMENT THEREOF.
References Cited (Backward Citations)
GB444786A
Cited
US2287286A
Cited
US2280437A
Cited
US2471067A
Cited
US2609835A
Cited
US2888617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |