US3195043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hall effect proximity transducer
Assignee: Westinghouse Electric Corp
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Filing: 1961-05-19
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Granted: 1965-07-13
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Robert G Burig
- 👤 Edward A Petrocelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:10
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A PROXIMITY TRASDUCER INCLUDING, A HALL GENERATOR DEVICE OPERATIVE TO PROVIDE AN OUTPUT SIGNAL PROPORTIONAL TO THE PRODUCT OF THE CURRENT AND MAGNETIC FIELD APPLIED THERETO, MEANS FOR APPLYING CURRENT TO SAID DEVICE, MAGNETIC MEANS OPERATIVE TO PROVIDE A MAGNETIC FIELD ACROSS SAID DEVICE, SAID MAGNETIC MEANS INCLUDING A PERMANENT MAGNET AND A TAPERED POLE PIECE COMPRISING A SOFT MAGNETIC MATERIAL HAVING LOW RESIDUAL MAGNETISM, MONOSTABLE SWITCHING MEANS NORMALLY PROVIDING NO OUTPUT AND BEING OPERATIVE TO CHANGES STATES WHEN ACTUATED TO PROVIDE AN OUTPUT, AND SENSING MEANS OPERATIVE TO ACTIVATE SAID SWITCHING MEANS TO ITS OUTPUT STATE WHEN THE MAGNETIC FIELD THROUGH SAID HALL GENERATOR DEVICE IS CONCENTRATED ABOVE A PREDETERMINED MAGNETIC FIELD STRENGTH BY THE PRESENCE OF AN OBJECT DESIRED TO BE DETECTED, SAID SENSING MEANS INCLUDING A ZENER DIODE BEING OPERATIVE TO BREAKDOWN WHEN THE OUTPUT SIGNALS OF SAID HALL GENERATOR DEVICE EXCEED A PREDETERMINED VALUE IN RESPONSE TO AN INCREASE IN MAGNETIC FIELD STRENGTH.
Claim 2
Dependent Claim
157 words
A PROXIMITY TRASDUCER INCLUDING, A HALL GENERATOR DEVICE OPERATIVE TO PROVIDE AN OUTPUT SIGNAL PROPORTIONAL TO THE PRODUCT OF THE CURRENT AND MAGNETIC FIELD APPLIED THERETO, MEANS FOR APPLYING CURRENT TO SAID DEVICE, MAGNETIC MEANS OPERATIVE TO PROVIDE A MAGNETIC FIELD ACROSS SAID DEVICE, SAID MAGNETIC MEANS INCLUDING A PERMANENT MAGNET AND A TAPERED POLE PIECE COMPRISING A SOFT MAGNETIC MATERIAL HAVING LOW RESIDUAL MAGNETISM, MONOSTABLE SWITCHING MEANS NORMALLY PROVIDING NO OUTPUT AND BEING OPERATIVE TO CHANGES STATES WHEN ACTUATED TO PROVIDE AN OUTPUT, AND SENSING MEANS OPERATIVE TO ACTIVATE SAID SWITCHING MEANS TO ITS OUTPUT STATE WHEN THE MAGNETIC FIELD THROUGH SAID HALL GENERATOR DEVICE IS CONCENTRATED ABOVE A PREDETERMINED MAGNETIC FIELD STRENGTH BY THE PRESENCE OF AN OBJECT DESIRED TO BE DETECTED, SAID SENSING MEANS INCLUDING A ZENER DIODE BEING OPERATIVE TO BREAKDOWN WHEN THE OUTPUT SIGNALS OF SAID HALL GENERATOR DEVICE EXCEED A PREDETERMINED VALUE IN RESPONSE TO AN INCREASE IN MAGNETIC FIELD STRENGTH.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |