US3218623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3 plate proximity scorer
Assignee: General Precision Inc
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Filing: 1961-04-19
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Granted: 1965-11-16
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Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Rudolph W Buntenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
APPARATUS FOR DETECTING THE PROXIMITY OF AN ELECTROSTATICALLY CHARGED BODY COMPRISING: A PLURALITY OF DETECTOR ELECTRODES POSITIONED IN SPACED RELATIONSHIP WITH A COMMON DETECTOR ELECTRODE AND ADAPTED TO RECEIVE ELECTROSTATIC CHARGES FROM THE ELECTROSTATICALLY CHARGED BODY, SAID CHARGE BEING INVERSELY PROPORTIONAL IN MAGNITUDE TO THE DISTANCE BETWEEN SAID CHARGED BODY AND EACH OF SAID ELECTRODES, SAID ELECTRIC CIRCUIT MEANS COUPLED TO SAID DETECTOR ELECTRODES AND TO SAID COMMON DETECTOR ELECTRODE FOR SENSING THE CHARGE POTENTIALS DEVELOPED BETWEEN SAID COMMON DETECTOR ELECTRODE AND EACH OF SAID DETECTOR ELECTRODES AND FOR DIVIDING ONE OF SAID CHARGE POTENTIALS BY THE OTHER OF SAID POTENTIALS TO DEVELOP AN OUTPUT SIGNAL RELATED TO THE DISTANCE BETWEEN SAID DETECTOR ELECTRODES AND SAID ELECTROSTATICALLY CHARGED BODY.
Claim 2
Dependent Claim
119 words
APPARATUS FOR DETECTING THE PROXIMITY OF AN ELECTROSTATICALLY CHARGED BODY COMPRISING: A PLURALITY OF DETECTOR ELECTRODES POSITIONED IN SPACED RELATIONSHIP WITH A COMMON DETECTOR ELECTRODE AND ADAPTED TO RECEIVE ELECTROSTATIC CHARGES FROM THE ELECTROSTATICALLY CHARGED BODY, SAID CHARGE BEING INVERSELY PROPORTIONAL IN MAGNITUDE TO THE DISTANCE BETWEEN SAID CHARGED BODY AND EACH OF SAID ELECTRODES, SAID ELECTRIC CIRCUIT MEANS COUPLED TO SAID DETECTOR ELECTRODES AND TO SAID COMMON DETECTOR ELECTRODE FOR SENSING THE CHARGE POTENTIALS DEVELOPED BETWEEN SAID COMMON DETECTOR ELECTRODE AND EACH OF SAID DETECTOR ELECTRODES AND FOR DIVIDING ONE OF SAID CHARGE POTENTIALS BY THE OTHER OF SAID POTENTIALS TO DEVELOP AN OUTPUT SIGNAL RELATED TO THE DISTANCE BETWEEN SAID DETECTOR ELECTRODES AND SAID ELECTROSTATICALLY CHARGED BODY.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |