Patent US3344347A successfully refreshed from Google Patents.
US3344347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining displacement utilizing a hall plate positioned tangential to an arcuate magnetic field
Assignee: F W BELL Inc
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Filing: 1963-08-23
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Granted: 1967-09-26
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Expires: 1983-08-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:20
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/145; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59; G01R33/00; G01R33/02; G01R33/06; G01R33/07; H; H01; H01B; H01B13/00; H01B13/0036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
APPARATUS FOR DETERMINING DISPLACEMENT OF A DEVICE FORMED WITH ELECTRIC CURRENT CONDUCTING MEANS RELATIVE TO A FIXED REFERENCE POINT COMPRISING AN ALTERNATING-CURRENTWAVEFORM ELECTRIC POWER SOURCE CONNECTED WITH THE CURRENT CONDUCTING MEANS OF THE DEVICE FOR INDUCING CURRENT FLOW THERETHROUGH TO PRODUCE AN ALTERNATING-CURRENT-WAVEFORM MAGNETIC FIELD OF A PREDETERMINED FREQUENCY AND HAVING AN ARCUATE MAGNETIC FIELD COMPONENT SPATIALLY FIXED RELATIVE TO THE DEVICE SAID DEVICE BEING INITIALLY POSITIONED AT SAID FIXED REFERENCE POINT, AND A HALL-EFFECT DEVICE DISPOSED IN FIXED RELATIONSHIP TO SAID FIXED REFERENCE POINT AND ELECTROMAGNETICALLY COUPLED WITH THE MAGNETIC FIELD AND BEING OPERATED TO PRODUCE A HALL-VOLTAGE OUTPUT SIGNAL OF ALTERNATING CURRENT WAVEFORM AT THE PREDETERMINED FREQUENCY AND WHICH SIGNAL IS RELATED TO THE MAGNETIC FIELD, SAID HALL-EFFECT DEVICE BEING POSITIONED WITH THE MAGNETIC AXIS THEREOF PERPENDICULAR TO SAID ARCUATE MAGNETIC FIELD COMPONENT WHEN THE DEVICE IS AT SAID FIXED REFERENCE POINT TO PROVIDE A ZERO OUTPUT SIGNAL WHEN THE DEVICE IS AT SAID FIXED REFERENCE POINT AND A POLARIZEDVOLTAGE OUTPUT SIGNAL WHEN THE DEVICE IS DISPLACED FROM SAID FIXED REFERENCE POINT.
Claim 2
Dependent Claim
174 words
APPARATUS FOR DETERMINING DISPLACEMENT OF A DEVICE FORMED WITH ELECTRIC CURRENT CONDUCTING MEANS RELATIVE TO A FIXED REFERENCE POINT COMPRISING AN ALTERNATING-CURRENTWAVEFORM ELECTRIC POWER SOURCE CONNECTED WITH THE CURRENT CONDUCTING MEANS OF THE DEVICE FOR INDUCING CURRENT FLOW THERETHROUGH TO PRODUCE AN ALTERNATING-CURRENT-WAVEFORM MAGNETIC FIELD OF A PREDETERMINED FREQUENCY AND HAVING AN ARCUATE MAGNETIC FIELD COMPONENT SPATIALLY FIXED RELATIVE TO THE DEVICE SAID DEVICE BEING INITIALLY POSITIONED AT SAID FIXED REFERENCE POINT, AND A HALL-EFFECT DEVICE DISPOSED IN FIXED RELATIONSHIP TO SAID FIXED REFERENCE POINT AND ELECTROMAGNETICALLY COUPLED WITH THE MAGNETIC FIELD AND BEING OPERATED TO PRODUCE A HALL-VOLTAGE OUTPUT SIGNAL OF ALTERNATING CURRENT WAVEFORM AT THE PREDETERMINED FREQUENCY AND WHICH SIGNAL IS RELATED TO THE MAGNETIC FIELD, SAID HALL-EFFECT DEVICE BEING POSITIONED WITH THE MAGNETIC AXIS THEREOF PERPENDICULAR TO SAID ARCUATE MAGNETIC FIELD COMPONENT WHEN THE DEVICE IS AT SAID FIXED REFERENCE POINT TO PROVIDE A ZERO OUTPUT SIGNAL WHEN THE DEVICE IS AT SAID FIXED REFERENCE POINT AND A POLARIZEDVOLTAGE OUTPUT SIGNAL WHEN THE DEVICE IS DISPLACED FROM SAID FIXED REFERENCE POINT.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |