US3774134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antisotropic thin film plated wire magnetostrictive transducer
Assignee: Honeywell Inc
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Filing: 1972-12-01
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Granted: 1973-11-20
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Expires: 1992-12-01
Abstract
Abstract A magnetostrictive anisotropic thin film plated wire transducer for measurement of deformation of an plastic medium. A length of magnetostrictive plated wire is strung back-and-forth across a transducer framework, the magnetostrictive wire being sensitive to stress and strain. The transducer detects deformation of a surface or a structure generated by external changes in pressure on that surface or structure. The deforming surface either directly induces a stress in the magnetrostrictive plated wire transducer or induces a stress on it via an intermediate medium such as a fluid.
Inventors
- 👤 V Kardashian
- 👤 R Fryer
- 👤 J Holmen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:23
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16; G01B7/24; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A magnetostrictive transducer structure comprising: a transducer frame; an extended length of anisotropic magnetic film plated wire having magnetostrictive properties, said wire being strung back-and-forth across said transducer frame in a plurality of adjacent convolutions; means securing said plated wire to said frame at each iNtersection of wire and frame; a pair of terminals connected to the ends of said plated wire for connection to suitable energizing and sensing means; and said convoluted plated wire having a deplated section at the folded portions of each convolution including the section of each convolution secured to said frame.
Claim 2
Dependent Claim
96 words
A magnetostrictive transducer structure comprising: a transducer frame; an extended length of anisotropic magnetic film plated wire having magnetostrictive properties, said wire being strung back-and-forth across said transducer frame in a plurality of adjacent convolutions; means securing said plated wire to said frame at each iNtersection of wire and frame; a pair of terminals connected to the ends of said plated wire for connection to suitable energizing and sensing means; and said convoluted plated wire having a deplated section at the folded portions of each convolution including the section of each convolution secured to said frame.
Claim 3
Dependent Claim
23 words
The invention according to claim 1 wherein said plated wire has a core of beryllium-copper and a magnetostrictive anisotropic magnetic plating of nickel-iron.
Claim 4
Dependent Claim
27 words
The invention according to claim 2 wherein the composition of the plating deviates from the zero magnetostrictive composition of approximately 80 percent nickel and 20 percent iron.
Claim 5
Dependent Claim
17 words
The invention according to claim 1 in which the adjacent convolutions are parallel one to the other.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |