US3604275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toroidal electrolytic sensor
Assignee: Honeywell Inc
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Filing: 1968-10-23
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Granted: 1971-09-14
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Expires: 1988-10-23
Abstract
Abstract A toroidal electrolytic sensor having substantially symmetrical diametrically opposed electrodes for providing an electrical signal in accordance with the relative immersion of the electrodes with respect to each other.
Inventors
- 👤 Terrence S Fox
- 👤 Glen W Driskill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:54
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01C; G01C9/00; G01C9/18; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/135; G01P15/14; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
An electrolytic sensor comprising hollow tubular nonconducting means including first and second spaced portions having a substantially symmetrical configuration with respect to a reference axis, first and second substantially identically shaped spaced electrode means secured within said first and second spaced portions respectively parallel to the longitudinal axis of said hollow tubular nonconducting means, said first and second electrode means being substantially symmetrical opposed with respect to each other and said reference axis, means including a current-conducting fluid partially filling said hollow tubular nonconducting means and partially immersing portions of said first and second electrode means for providing an electrical signal in accordance with the relative immersion of said first and second electrode means with respect to each other, and said first and second portions having an internal crosssectional area with a characteristic dimension for providing stability of the surface of said conducting fluid as a function of at least said characteristic dimension, acceleration forces and the density of said fluid.
Claim 2
Dependent Claim
161 words
An electrolytic sensor comprising hollow tubular nonconducting means including first and second spaced portions having a substantially symmetrical configuration with respect to a reference axis, first and second substantially identically shaped spaced electrode means secured within said first and second spaced portions respectively parallel to the longitudinal axis of said hollow tubular nonconducting means, said first and second electrode means being substantially symmetrical opposed with respect to each other and said reference axis, means including a current-conducting fluid partially filling said hollow tubular nonconducting means and partially immersing portions of said first and second electrode means for providing an electrical signal in accordance with the relative immersion of said first and second electrode means with respect to each other, and said first and second portions having an internal crosssectional area with a characteristic dimension for providing stability of the surface of said conducting fluid as a function of at least said characteristic dimension, acceleration forces and the density of said fluid.
Claim 3
Dependent Claim
78 words
A sensor of the character recited in claim 1 including a second fluid filling the remainder of said hollow tubular nonconducting means and said characteristic dimension of said internal cross-sectional area provides stable surface interface in accordance with the Bond number which equals the square of the internal radius of said tubular means times the perturbing acceleration times the difference in densities of said conducting and second fluids divided by the surface tension times the acceleration of gravity.
Claim 4
Dependent Claim
40 words
A sensor of the character recited in claim 1 including a section of reduced cross-sectional area disposed between said first and second spaced portions controlling the flow of fluid therethrough and providing damping of surface oscillations resulting from perturbation frequencies.
Claim 5
Dependent Claim
36 words
A sensor of the character recited in claim 1 in which said hollow tubular means has a relatively small cross-sectional area to limit the free-surface area of said fluid for minimizing undesirable fluid breakup during vibration.
Claim 6
Dependent Claim
71 words
A sensor of the character recited in claim 3 in which said hollow tubular means forms a partial toroid having first and second extremities, and a conduit section is connected between said first and second extremities by first and second conduit connections respectively, said first and second conduit connections being disposed at an angle with respect to said hollow tubular means to avoid trapping bubbles in said conduit section and connections.
Claim 7
Dependent Claim
25 words
A sensor of the character recited in claim 1 in which said hollow tubular means is toroidal and said spaced electrode means are arcuately shaped.
Claim 8
Dependent Claim
61 words
A sensor of the character recited in claim 6 mounted on a gyroscope having a sensitive axis and torquing means for precessing said gyroscope, the improvement comprising said sensor being symmetrically disposed with respect to said sensitive axis such that movement of said fluid within said hollow tubular means does not result in an undesirable precession torque about said sensitive axis.
Claim 9
Dependent Claim
62 words
A sensor of the character recited in claim 7 in which said hollow tubular means has its center aligned with said sensitive axis, said hollow tubular means surrounding said sensitive axis such that tilt of said gyroscope causing movement of said fluid within said hollow tubular means does not result in an undesirable shift in the center of gravity of said fluid.
Claim 10
Dependent Claim
60 words
A sensor of the character recited in claim 6 mounted on a stable platform having a sensitive axis and torquing-means for torquing said platform, the improvement comprising said sensor being symmetrically disposed with respect to said sensitive axis such that movement of said fluid within said hollow tubular means does not result in an undesirable torque about said sensitive axis.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |