Patent US3370205A successfully refreshed from Google Patents.
US3370205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic suspension system
Assignee: United States Department of the Navy
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Filing: 1965-09-27
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Granted: 1968-02-20
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Theodor A Dukes
- 👤 Ricardo N Zapata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:04
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/04; F16C32/0406; F16C32/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A MAGNETIC SUSPENSION SYSTEM FOR SUPPORTING IN A SUBSTANTIALLY INVARIANT ORIENTATION A MAGNETIZABLE SUSPENDED BODY WHOSE POSITION MAY VARY COMPRISING, IN COMBINATION: A SYSTEM OF THREE SETS OF MAGNETIC-FIELD-PRODUCING (M.F.P.) ELEMENTS, SAID SETS ARRANGED TO PRODUCE THREE ORTHOGONAL MAGNETIC FORCES WHICH SUSPEND THE BODY AND CONTROL ITS MOVEMENT WITH RESPECT TO THREE ORTHOGONAL AXES, THE MAGNETIC FORCE COMPONENT PRODUCED BY EACH SET BEING A FUNCTION OF AN ELECTRICAL PARAMETER IN SUCH A WAY THAT THE AVERAGE VALUE OF SAID PARAMETER IS THAT REQUIRED TO POSITION SAID SUSPENDED BODY AT ITS NOMINAL EQUILIBRIUM POINT, POSITION-SENSING MEANS FOR DETECTING CHANGES IN POSITION OF SAID SUSPENDED BODY ALONG SAID THREE ORTHOGONAL AXES AND FOR PROVIDING SIGNALS PROPORTIONAL IN VALUE TO SAID CHANGES, AND FEEDBACK CONTROL MEANS FOR UTILIZING EACH OF SAID CHANGE-PROPORTIONAL SIGNALS TO VARY THE VALUE OF SAID PARAMETER IN THE PROPER SET OF M.F.P. ELEMENTS TO PRODUCE THE COMPENSATORY CHANGE IN ITS FIELD STRENGTH REQUIRED TO RETURN SAID BODY TO ITS NOMINAL EQUILIBRIUM POINT ALONG THE AXIS ASSOCIATED WITH THAT SET OF M.F.P. ELEMENTS.
Claim 2
Dependent Claim
173 words
A MAGNETIC SUSPENSION SYSTEM FOR SUPPORTING IN A SUBSTANTIALLY INVARIANT ORIENTATION A MAGNETIZABLE SUSPENDED BODY WHOSE POSITION MAY VARY COMPRISING, IN COMBINATION: A SYSTEM OF THREE SETS OF MAGNETIC-FIELD-PRODUCING (M.F.P.) ELEMENTS, SAID SETS ARRANGED TO PRODUCE THREE ORTHOGONAL MAGNETIC FORCES WHICH SUSPEND THE BODY AND CONTROL ITS MOVEMENT WITH RESPECT TO THREE ORTHOGONAL AXES, THE MAGNETIC FORCE COMPONENT PRODUCED BY EACH SET BEING A FUNCTION OF AN ELECTRICAL PARAMETER IN SUCH A WAY THAT THE AVERAGE VALUE OF SAID PARAMETER IS THAT REQUIRED TO POSITION SAID SUSPENDED BODY AT ITS NOMINAL EQUILIBRIUM POINT, POSITION-SENSING MEANS FOR DETECTING CHANGES IN POSITION OF SAID SUSPENDED BODY ALONG SAID THREE ORTHOGONAL AXES AND FOR PROVIDING SIGNALS PROPORTIONAL IN VALUE TO SAID CHANGES, AND FEEDBACK CONTROL MEANS FOR UTILIZING EACH OF SAID CHANGE-PROPORTIONAL SIGNALS TO VARY THE VALUE OF SAID PARAMETER IN THE PROPER SET OF M.F.P. ELEMENTS TO PRODUCE THE COMPENSATORY CHANGE IN ITS FIELD STRENGTH REQUIRED TO RETURN SAID BODY TO ITS NOMINAL EQUILIBRIUM POINT ALONG THE AXIS ASSOCIATED WITH THAT SET OF M.F.P. ELEMENTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |