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US3237456A
Expired / Lapsed
US
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Integrating accelerometer
Assignee: Bendix Corp
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Filing: 1963-06-20
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Granted: 1966-03-01
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
G; G01; G01P; G01P7/00; G01P15/00; G01P15/02; G01P15/08; G01P15/13; G01P15/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
AN ACCELEROMETER COMPRISING IN COMBINATION A PIVOTALLY MOUNTED PENDULUM RESPONSIVE TO ACCELERATIONAL FORCES, SAID PENDULUM INCLUDING A CAPACITIVE PICK-OFF MEANS OPERABLE FROM A NULL POSITION FOR EFFECTING ELECTRICAL CONTROL SIGNALS UPON DISPLACEMENT OF THE PENDULUM IN RESPONSE TO SAID ACCELERATIONAL FORCES, VARIABLE OSCILLATOR MEANS HAVING A PAIR OF VARIABLE FREQUENCY ALTERNATING CURRENT OUTPUTS, MEANS OPERATIVELY CONNECTING THE ELECTRICAL CONTROL SIGNALS FROM THE CAPACITIVE PICK-OFF MEANS TO THE VARIABLE OSCILLATOR MEANS FOR CONTROLLING THE FREQUENCY OF THE ALTERNATING CURRENT PROVIDED AT THE PAIR OF OUTPUTS THEREOF, SAID CAPACITIVE PICK-OFF MEANS BEING SO ARRANGED THAT THE FREQUENCY OF THE ALTERNATING CURRENT FROM ONE OF SAID PAIR OF OUTPUTS MAY BE INCREASED AND THE FREQUENCY OF THE ALTERNATING CURRENT FROM THE OTHER OF SAID PAIR OF OUTPUTS MAY BE DECREASED UPON A DISPLACEMENT OF THE PENDULUM IN RESPONSE TO SAID ACCELERATIONAL FORCES EFFECTING OPERATION OF THE CAPACITIVE PICK-OFF MEANS FROM SAID NULL POSITION, FIRST AND SECOND PHASE SENSITIVE DEMODULATOR MEANS OPERATIVE BY THE ALTERNATING CURRENT SUPPLIED FROM ONE OF SAID PAIR OF OUTPUTS OF THE VARIABLE OSCILLATOR MEANS, AND PHASE SHIFTING MEANS OPERATIVE BY THE ALTERNATING CURRENT FROM THE OTHER OF SAID PAIR OF OUTPUTS OF THE VARIABLE OSCILLATOR MEANS, SAID PHASE SHIFTING
Claim 2
Dependent Claim
200 words
AN ACCELEROMETER COMPRISING IN COMBINATION A PIVOTALLY MOUNTED PENDULUM RESPONSIVE TO ACCELERATIONAL FORCES, SAID PENDULUM INCLUDING A CAPACITIVE PICK-OFF MEANS OPERABLE FROM A NULL POSITION FOR EFFECTING ELECTRICAL CONTROL SIGNALS UPON DISPLACEMENT OF THE PENDULUM IN RESPONSE TO SAID ACCELERATIONAL FORCES, VARIABLE OSCILLATOR MEANS HAVING A PAIR OF VARIABLE FREQUENCY ALTERNATING CURRENT OUTPUTS, MEANS OPERATIVELY CONNECTING THE ELECTRICAL CONTROL SIGNALS FROM THE CAPACITIVE PICK-OFF MEANS TO THE VARIABLE OSCILLATOR MEANS FOR CONTROLLING THE FREQUENCY OF THE ALTERNATING CURRENT PROVIDED AT THE PAIR OF OUTPUTS THEREOF, SAID CAPACITIVE PICK-OFF MEANS BEING SO ARRANGED THAT THE FREQUENCY OF THE ALTERNATING CURRENT FROM ONE OF SAID PAIR OF OUTPUTS MAY BE INCREASED AND THE FREQUENCY OF THE ALTERNATING CURRENT FROM THE OTHER OF SAID PAIR OF OUTPUTS MAY BE DECREASED UPON A DISPLACEMENT OF THE PENDULUM IN RESPONSE TO SAID ACCELERATIONAL FORCES EFFECTING OPERATION OF THE CAPACITIVE PICK-OFF MEANS FROM SAID NULL POSITION, FIRST AND SECOND PHASE SENSITIVE DEMODULATOR MEANS OPERATIVE BY THE ALTERNATING CURRENT SUPPLIED FROM ONE OF SAID PAIR OF OUTPUTS OF THE VARIABLE OSCILLATOR MEANS, AND PHASE SHIFTING MEANS OPERATIVE BY THE ALTERNATING CURRENT FROM THE OTHER OF SAID PAIR OF OUTPUTS OF THE VARIABLE OSCILLATOR MEANS, SAID PHASE SHIFTING
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |