Patent US3247361A successfully refreshed from Google Patents.
US3247361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator
Assignee: Basic Products Corp
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Filing: 1962-07-09
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Granted: 1966-04-19
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 George V Woodley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:42
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A SYSTEM FOR CONTROLLING POWER TO A PLURALITY OF HEATING LOADS, THE COMBINATION INCLUDING AN A.C. SOURCE, A PLURALITY OF ELECTRICAL HEATING LOADS, MEANS CONNECTING SAID A.C. SOURCE TO SAID HEATING LOADS INCLUDING AT LEAST ONE POWER MODULATOR HAVING CONTROL MEANS, TEMPERATURE RESPONSIVE MEANS CONNECTED TO SAID HEATING LOADS FOR SENSING THE TEMPERATURE OF SAID LOADS, AND REGULATING MEANS CONNECTED TO SAID TEMPERATURE RESPONSIVE MEANS FOR CONTROLLING THE OPERATION OF SAID CONTROL MEANS, SAID REGULATING MEANS INCLUDING A SECOND HARMONIC TYPE MAGNETIC AMPLIFIER FOR COMPARISON AND SIGNAL AMPLIFICATION, POWER AMPLIFIER MEANS HAVING AN INPUT AND OUTPUT CIRCUIT, SAID INPUT CIRCUIT BEING CONNECTED TO SAID MAGNETIC AMPLIFIER AND SAID OUTPUT CIRCUIT FORMING THE OUTPUT CIRCUIT OF SAID REGULATING MEANS AND BEING CONNECTED TO THE CONTROL MEANS OF SAID POWER MODULATOR FOR CONTROLLING THE POWER DELIVERED TO SAID HEATING LOADS, AND FEEDBACK MEANS CONNECTED TO SAID SECOND HARMONIC
Claim 2
Dependent Claim
147 words
IN A SYSTEM FOR CONTROLLING POWER TO A PLURALITY OF HEATING LOADS, THE COMBINATION INCLUDING AN A.C. SOURCE, A PLURALITY OF ELECTRICAL HEATING LOADS, MEANS CONNECTING SAID A.C. SOURCE TO SAID HEATING LOADS INCLUDING AT LEAST ONE POWER MODULATOR HAVING CONTROL MEANS, TEMPERATURE RESPONSIVE MEANS CONNECTED TO SAID HEATING LOADS FOR SENSING THE TEMPERATURE OF SAID LOADS, AND REGULATING MEANS CONNECTED TO SAID TEMPERATURE RESPONSIVE MEANS FOR CONTROLLING THE OPERATION OF SAID CONTROL MEANS, SAID REGULATING MEANS INCLUDING A SECOND HARMONIC TYPE MAGNETIC AMPLIFIER FOR COMPARISON AND SIGNAL AMPLIFICATION, POWER AMPLIFIER MEANS HAVING AN INPUT AND OUTPUT CIRCUIT, SAID INPUT CIRCUIT BEING CONNECTED TO SAID MAGNETIC AMPLIFIER AND SAID OUTPUT CIRCUIT FORMING THE OUTPUT CIRCUIT OF SAID REGULATING MEANS AND BEING CONNECTED TO THE CONTROL MEANS OF SAID POWER MODULATOR FOR CONTROLLING THE POWER DELIVERED TO SAID HEATING LOADS, AND FEEDBACK MEANS CONNECTED TO SAID SECOND HARMONIC
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |