Patent US3197756A successfully refreshed from Google Patents.
US3197756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement sensing apparatus
Assignee: Honeywell Inc
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Filing: 1960-12-27
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Granted: 1965-07-27
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 John A Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:26
CPC Classifications
H; H03; H03K; H03K17/00; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN AN INERTIAL SWITCHING MEANS: A INERTIAL INSTRUMENT HAVING A CONTROL MEMBER MOUNTED FOR MOVEMENT WITH RESPECT TO AN AXIS; INDUCTIVE PICKOFF MEANS INCLUDING PRIMARY AND SECONDARY WINDINGS, SAID INDUCTIVE PICKOFF MEANS BEING ATTACHED TO SAID CONTROL MEMBER TO GIVE AN OUTPUT, WHEN A SIGNAL IS APPLIED TO SAID PRIMARY WINDING, OF A SENSE AND MAGNITUDE INDICATIVE OF THE SENSE AND MAGNITUDE OF THE DISPLACEMENT OF SAID CONTROL MEMBER; AN AMPLIFIER INCLUDING INPUT AND OUTPUT TERMINALS, SAID AMPLIFIER PROVIDING AN OSCILLATORY SIGNAL AT SAID OUTPUT TERMINALS WHEN POSITIVE FEEDBACK IS APPLIED TO SAID INPUT TERMINALS; A TRANSFORMER MEANS INCLUDING PRIMARY AND SECONDARY MEANS; MEANS CONNECTING SAID PRIMARIES OF SAID INDUCTIVE PICKOFF AND SAID TRANSFORMER MEANS TO SAID AMPLIFIER OUTPUT TERMINALS; AND MEANS CONNECTING SAID SECONDARIES OF SAID INDUCTIVE PICKOFF AND SAID TRANSFORMER MEANS TO SAID AMPLIFIER INPUT FOR PROVIDING A FEEDBACK SIGNAL THERETO.
Claim 2
Dependent Claim
143 words
IN AN INERTIAL SWITCHING MEANS: A INERTIAL INSTRUMENT HAVING A CONTROL MEMBER MOUNTED FOR MOVEMENT WITH RESPECT TO AN AXIS; INDUCTIVE PICKOFF MEANS INCLUDING PRIMARY AND SECONDARY WINDINGS, SAID INDUCTIVE PICKOFF MEANS BEING ATTACHED TO SAID CONTROL MEMBER TO GIVE AN OUTPUT, WHEN A SIGNAL IS APPLIED TO SAID PRIMARY WINDING, OF A SENSE AND MAGNITUDE INDICATIVE OF THE SENSE AND MAGNITUDE OF THE DISPLACEMENT OF SAID CONTROL MEMBER; AN AMPLIFIER INCLUDING INPUT AND OUTPUT TERMINALS, SAID AMPLIFIER PROVIDING AN OSCILLATORY SIGNAL AT SAID OUTPUT TERMINALS WHEN POSITIVE FEEDBACK IS APPLIED TO SAID INPUT TERMINALS; A TRANSFORMER MEANS INCLUDING PRIMARY AND SECONDARY MEANS; MEANS CONNECTING SAID PRIMARIES OF SAID INDUCTIVE PICKOFF AND SAID TRANSFORMER MEANS TO SAID AMPLIFIER OUTPUT TERMINALS; AND MEANS CONNECTING SAID SECONDARIES OF SAID INDUCTIVE PICKOFF AND SAID TRANSFORMER MEANS TO SAID AMPLIFIER INPUT FOR PROVIDING A FEEDBACK SIGNAL THERETO.
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |