US3428901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condition detecting apparatus,including capacitor in series with sensor means,for short circuit protection
Assignee: Honeywell Inc
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Filing: 1966-08-22
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Granted: 1969-02-18
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 James C Blackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:02
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/12; G01T7/125; H; H02; H02H; H02H7/00; H02H7/20; H02H9/00; H02H9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
CONDITION DETECTING APPARATUS COMPRISING: FIRST CIRCUIT MEANS ADAPTED TO BE CONNECTED TO A SOURCE OF AC VOLTAGE AND INCLUDING IN A SERIES CIRCUIT FIRST ELECTRICAL ENERGY STORAGE MEANS, FIRST UNIDIRECTIONALLY CONDUCTIVE MEANS, AND OUTPUT MEANS, SECOND UNDIRECTIONALLY CONDUCTIVE MEANS CONNECTED IN PARALLEL WITH SAID FIRST STORAGE MEANS, SAID SECOND UNIDIRECTIONALLY CONDUCTIVE MEANS BEING POLED TO PASS CURRENT IN A DIRECTION OPPOSITE TO SAID FIRST UNIDIRECTIONALLY CONDUCTIVE MEANS, VARIABLE IMPEDANCE CONDITION SENSING MEANS HAVING A HIGH IMPEDANCE IN THE ABSENCE OF A CONDITION TO WHICH IT IS SENSITIVE AND HAVING A LOW IMPEDANCE WHEN SUBJECTED TO SAID CONDITION,
Claim 2
Dependent Claim
97 words
CONDITION DETECTING APPARATUS COMPRISING: FIRST CIRCUIT MEANS ADAPTED TO BE CONNECTED TO A SOURCE OF AC VOLTAGE AND INCLUDING IN A SERIES CIRCUIT FIRST ELECTRICAL ENERGY STORAGE MEANS, FIRST UNIDIRECTIONALLY CONDUCTIVE MEANS, AND OUTPUT MEANS, SECOND UNDIRECTIONALLY CONDUCTIVE MEANS CONNECTED IN PARALLEL WITH SAID FIRST STORAGE MEANS, SAID SECOND UNIDIRECTIONALLY CONDUCTIVE MEANS BEING POLED TO PASS CURRENT IN A DIRECTION OPPOSITE TO SAID FIRST UNIDIRECTIONALLY CONDUCTIVE MEANS, VARIABLE IMPEDANCE CONDITION SENSING MEANS HAVING A HIGH IMPEDANCE IN THE ABSENCE OF A CONDITION TO WHICH IT IS SENSITIVE AND HAVING A LOW IMPEDANCE WHEN SUBJECTED TO SAID CONDITION,
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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |