US3441802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage responsive relay type quantizer for monitoring plural sources
Assignee: POWERCON Inc
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Filing: 1966-12-20
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Granted: 1969-04-29
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Expires: 1986-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:48
CPC Classifications
H; H02; H02J; H02J9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A MONITOR CIRCUIT FOR A PLURALITY OF ELECTRICAL DEVICES, COMPRISING, RELAY MEANS HAVING A COIL AND COIL ACTUATED CONTACTS, RESISTANCES ASSOCIATED WITH EACH SAID ELECTRICAL DEVICE, CONTACT MEANS ACROSS EACH RESISTANCE CLOSED WHEN ITS RESPECTIVE DEVICE IS OPERATING AND OPEN WHEN ITS RESPECTIVE DEVICE IS NON-OPERATING, SAID RESISTANCES BEING IN A SERIES CONNECTION CIRCUIT, WITH SAID SERIES CONNECTION CIRCUIT BEING CONNECTED ACROSS SAID RELAY COIL, A CONSTANT VOLTAGE SOURCE, ADJUSTABLE MEANS FOR SERIALLY FEEDING ELECTRIC CURRENT FROM SAID CONSTANT VOLTAGE SOURCE TO SAID RELAY COIL TO ENERGIZE SAID RELAY COIL AJUSTABLE MEANS FOR BYPASSING CURRENT AROUND SAID RELAY COIL, ONE PAIR OF SAID COIL OPERATED RELAY CONTACTS BEING CONNECTED TO OPEN SAID BYPASSING CURRENT FLOW AND OTHER PAIRS OF RELAY CONTACTS FOR FURTHER UTILIZATION WITH SAID ELECTRICAL DEVICES.
Claim 2
Dependent Claim
128 words
A MONITOR CIRCUIT FOR A PLURALITY OF ELECTRICAL DEVICES, COMPRISING, RELAY MEANS HAVING A COIL AND COIL ACTUATED CONTACTS, RESISTANCES ASSOCIATED WITH EACH SAID ELECTRICAL DEVICE, CONTACT MEANS ACROSS EACH RESISTANCE CLOSED WHEN ITS RESPECTIVE DEVICE IS OPERATING AND OPEN WHEN ITS RESPECTIVE DEVICE IS NON-OPERATING, SAID RESISTANCES BEING IN A SERIES CONNECTION CIRCUIT, WITH SAID SERIES CONNECTION CIRCUIT BEING CONNECTED ACROSS SAID RELAY COIL, A CONSTANT VOLTAGE SOURCE, ADJUSTABLE MEANS FOR SERIALLY FEEDING ELECTRIC CURRENT FROM SAID CONSTANT VOLTAGE SOURCE TO SAID RELAY COIL TO ENERGIZE SAID RELAY COIL AJUSTABLE MEANS FOR BYPASSING CURRENT AROUND SAID RELAY COIL, ONE PAIR OF SAID COIL OPERATED RELAY CONTACTS BEING CONNECTED TO OPEN SAID BYPASSING CURRENT FLOW AND OTHER PAIRS OF RELAY CONTACTS FOR FURTHER UTILIZATION WITH SAID ELECTRICAL DEVICES.
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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |