US3366898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral resonator
Assignee: Collins Radio Co
•
Filing: 1963-02-26
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Granted: 1968-01-30
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Brown
- 👤 James C Nailen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:55
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/22; H03H9/46; H03H9/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
MECHANICAL RESONATOR MEANS COMPRISING: AN ELONGATED ROD OF MAGNETOSTRICTIVE MATERIAL AND HAVING A NATURAL RESONANCE FREQUENCY F; FIRST HELICALLY SHAPED WINDING MEANS COMPRISED OF A CONDUCTIVE MATERIAL COATED AROUND A FIRST SECTION OF SAID ROD; SECOND HELICALLY SHAPED WINDING MEANS COMPRISED OF A CONDUCTIVE MATERIAL COATED AROUND A SECOND SECTION OF SAID ROD; AND SIGNAL SOURCE MEANS FOR ENERGIZING SAID FIRST WINDING MEANS WITH A SIGNAL OF A FREQUENCY BANDWIDTH HAVING A NOMINAL CENTER FREQUENCY F; SAID ROD RESPONSIVE TO ENERGIZATION OF SAID FIRST WINDING MEANS TO ALTERNATIVELY ELONGATE AND CONTRACT MAGNETOSTRICTIVELY NEAR THE SAID FREQUENCY F, SAID FIRST AND SECOND HELICALLY SHAPED WINDING MEANS BEING ELECTRICALLY ISOLATED FROM EACH OTHER AND SAID ROD BUT BEING INDUCTIVELY AND MAGNETOSTRICTIVELY COUPLED TOGETHER BY SAID ROD.
Claim 2
Dependent Claim
124 words
MECHANICAL RESONATOR MEANS COMPRISING: AN ELONGATED ROD OF MAGNETOSTRICTIVE MATERIAL AND HAVING A NATURAL RESONANCE FREQUENCY F; FIRST HELICALLY SHAPED WINDING MEANS COMPRISED OF A CONDUCTIVE MATERIAL COATED AROUND A FIRST SECTION OF SAID ROD; SECOND HELICALLY SHAPED WINDING MEANS COMPRISED OF A CONDUCTIVE MATERIAL COATED AROUND A SECOND SECTION OF SAID ROD; AND SIGNAL SOURCE MEANS FOR ENERGIZING SAID FIRST WINDING MEANS WITH A SIGNAL OF A FREQUENCY BANDWIDTH HAVING A NOMINAL CENTER FREQUENCY F; SAID ROD RESPONSIVE TO ENERGIZATION OF SAID FIRST WINDING MEANS TO ALTERNATIVELY ELONGATE AND CONTRACT MAGNETOSTRICTIVELY NEAR THE SAID FREQUENCY F, SAID FIRST AND SECOND HELICALLY SHAPED WINDING MEANS BEING ELECTRICALLY ISOLATED FROM EACH OTHER AND SAID ROD BUT BEING INDUCTIVELY AND MAGNETOSTRICTIVELY COUPLED TOGETHER BY SAID ROD.
References Cited (Backward Citations)
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Cited
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US2619537A
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GB818775A
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US2854593A
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US3081439A
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US3078426A
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US3020416A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |