US4161118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force direction transducer
Assignee: Individual
•
Filing: 1977-12-12
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Granted: 1979-07-17
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Expires: 1997-12-12
Abstract
Abstract This invention concerns an electrical mechanical instrument transducer which accurately detects the direction of an externally applied force and more particularly, though by no means exclusively, transducer apparatus that provides an electrical signal commensurate to the direction of force or forces resulting from two-dimensional hydrodynamic flow such as waves, currents and tides. A toroidal resistive element and thin resilient wire electrical contact wiper provide accurate and sensitive, yet rugged and reliable transducer operation.
Inventors
- 👤 Thomas J. Banwell
- 👤 Thomas C. Banwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:07
CPC Classifications
G; G01; G01C; G01C13/00; G01C13/002; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; G01P; G01P13/00; G01P13/0006; G01P13/0013; G01P13/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
In apparatus of the character described for determining the direction of a force or forces resulting from two-dimensional hydrodynamic flow, the combination of a toroidal electrical resistance element and a thin electrical contact wire, a top section and a bottom section comprising surfaces of revolution, said sections placed in the path of flow at a fixed point, said sections flexibly coupled and having coincident axes of revolution, means disposed within the sections for mounting an electrically insulated contact wire and toroidal electrical resistor so that the slight tilting due to the applied force against the top section causes the said wire to make electrical contact against the inner side of said resistor which provides, by means of an electrical manipulating circuit, an electrical signal which is commensurate to the direction of the applied forces.
Claim 2
Dependent Claim
134 words
In apparatus of the character described for determining the direction of a force or forces resulting from two-dimensional hydrodynamic flow, the combination of a toroidal electrical resistance element and a thin electrical contact wire, a top section and a bottom section comprising surfaces of revolution, said sections placed in the path of flow at a fixed point, said sections flexibly coupled and having coincident axes of revolution, means disposed within the sections for mounting an electrically insulated contact wire and toroidal electrical resistor so that the slight tilting due to the applied force against the top section causes the said wire to make electrical contact against the inner side of said resistor which provides, by means of an electrical manipulating circuit, an electrical signal which is commensurate to the direction of the applied forces.
References Cited (Backward Citations)
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US2780937A
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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) | 1982-07-16 | 1983-01-15 | 1983-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-16 | 1987-01-15 | 1987-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-16 | 1991-01-15 | 1991-07-17 | $7700.00 | Window Closed / Lapsed |