Patent US3264639A successfully refreshed from Google Patents.
US3264639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft angle digitizer
Assignee: General Precision Inc
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Filing: 1963-11-27
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Granted: 1966-08-02
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Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 Lerman Harold
- 👤 Gerard Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SHAFT ANGLE DIGITIZER COMPRISING FIRST AND SECOND AND GATES, FIRST SWITCH MEANS ENABLING EACH OF SAID GATES WHEN ACTUATED IN A FIRST DIRECTION AND DISABLING EACH OF SAID GATES WHEN ACTUATED IN A SECOND DIRECTION, SECOND SWITCH MEANS CAPACITIVELY COUPLED TO SAID FIRST AND SECOND GATES FOR APPLYING AN INPUT PULSE OF ONE POLARITY TO EACH OF SAID GATES WHEN ACTUATED IN A FIRST DIRECTION AND AN INPUT PULSE OF AN OPPOSITE POLARITY WHEN ACTUATED IN A SECOND DIRECTION, INVERTER MEANS FOR INVERTING THE INPUT SIGNAL TO SAID SECOND GATE, AND ROTATABLE CODED MEANS FOR ACTUATING SAID FIRST AND SECOND SWITCH MEANS AT PREDETERMINED ANGULAR POSITIONS OF THE CODED MEANS, SAID CODED MEANS ACTUATING SAID FIRST SWITCH MEANS IN SAID FIRST DIRECTION AT A FIRST ANGULAR POSITION AND ACTUATING SAID FIRST SWITCH MEANS IN SAID SECOND DIRECTION AT A SECOND ANGULAR POSITION, SAID CODED MEANS ACTUATING SAID SECOND SWITCH
Claim 2
Dependent Claim
150 words
A SHAFT ANGLE DIGITIZER COMPRISING FIRST AND SECOND AND GATES, FIRST SWITCH MEANS ENABLING EACH OF SAID GATES WHEN ACTUATED IN A FIRST DIRECTION AND DISABLING EACH OF SAID GATES WHEN ACTUATED IN A SECOND DIRECTION, SECOND SWITCH MEANS CAPACITIVELY COUPLED TO SAID FIRST AND SECOND GATES FOR APPLYING AN INPUT PULSE OF ONE POLARITY TO EACH OF SAID GATES WHEN ACTUATED IN A FIRST DIRECTION AND AN INPUT PULSE OF AN OPPOSITE POLARITY WHEN ACTUATED IN A SECOND DIRECTION, INVERTER MEANS FOR INVERTING THE INPUT SIGNAL TO SAID SECOND GATE, AND ROTATABLE CODED MEANS FOR ACTUATING SAID FIRST AND SECOND SWITCH MEANS AT PREDETERMINED ANGULAR POSITIONS OF THE CODED MEANS, SAID CODED MEANS ACTUATING SAID FIRST SWITCH MEANS IN SAID FIRST DIRECTION AT A FIRST ANGULAR POSITION AND ACTUATING SAID FIRST SWITCH MEANS IN SAID SECOND DIRECTION AT A SECOND ANGULAR POSITION, SAID CODED MEANS ACTUATING SAID SECOND SWITCH
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |