US3318015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic dryer control circuit
Assignee: General Electric Co
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Filing: 1965-02-05
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Granted: 1967-05-09
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Expires: 1985-02-05
Abstract
No abstract record available.
Inventors
- 👤 Matt F Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:18
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/14; D06F34/18; D06F2103/00; D06F2103/02; D06F2103/08; D06F2103/10; D06F2103/38; D06F2105/00; D06F2105/62; D06F58/00; D06F58/32; D06F58/34; D06F58/36; D06F58/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A FABRIC DRYER INCLUDING A CHAMBER FOR RECEIVING FABRICS TO BE DRIED, DRYING MEANS ARRANGED TO CAUSE EVAPORATION OF MOISTURE FROM THE FABRICS, AND MEANS FOR TUMBLING FABRICS IN THE CHAMBER; A CONTROL SYSTEM FOR THE DRYER COMPRISING: (A) A TIMER MECHANISM FOR INACTIVATING THE DRYER AFTER A PREDETERMINED PERIOD TIMER OPERATION, SAID TIMER BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRICAL ENERGY BY A CIRCUIT INCLUDING A NORMALLY CLOSED SWITCH, (B) SPACED CONDUCTORS POSITIONED SO AS TO BE BRIDGED BY FABRICS TUMBLING IN THE CHAMBER SO THAT THE ELECTRICAL RESISTANCE ACROSS SAID CONDUCTORS IS LOW WHEN THERE IS SUBSTANTIAL MOISTURE IN THE FABRICS BRIDGING SAID CONDUCTORS AND INCREASES AS THE FABRICS APPROACH DRYNESS, (C) SAID CONDUCTORS BEING ADAPTED TO BE CONNECTED ACROSS THE SOURCE OF ELECTRICAL ENERGY IN AN ELECTRIC SERIES CIRCUIT ARRANGEMENT WITH A GLOW TUBE SO THAT SAID GLOW TUBE EMITS LIGHT WHEN THE RESISTANCE ACROSS SAID CONDUCTORS IS LOW AND CEASES TO EMIT LIGHT AS THE RESISTANCE INCREASES, AND
Claim 2
Dependent Claim
166 words
IN A FABRIC DRYER INCLUDING A CHAMBER FOR RECEIVING FABRICS TO BE DRIED, DRYING MEANS ARRANGED TO CAUSE EVAPORATION OF MOISTURE FROM THE FABRICS, AND MEANS FOR TUMBLING FABRICS IN THE CHAMBER; A CONTROL SYSTEM FOR THE DRYER COMPRISING: (A) A TIMER MECHANISM FOR INACTIVATING THE DRYER AFTER A PREDETERMINED PERIOD TIMER OPERATION, SAID TIMER BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRICAL ENERGY BY A CIRCUIT INCLUDING A NORMALLY CLOSED SWITCH, (B) SPACED CONDUCTORS POSITIONED SO AS TO BE BRIDGED BY FABRICS TUMBLING IN THE CHAMBER SO THAT THE ELECTRICAL RESISTANCE ACROSS SAID CONDUCTORS IS LOW WHEN THERE IS SUBSTANTIAL MOISTURE IN THE FABRICS BRIDGING SAID CONDUCTORS AND INCREASES AS THE FABRICS APPROACH DRYNESS, (C) SAID CONDUCTORS BEING ADAPTED TO BE CONNECTED ACROSS THE SOURCE OF ELECTRICAL ENERGY IN AN ELECTRIC SERIES CIRCUIT ARRANGEMENT WITH A GLOW TUBE SO THAT SAID GLOW TUBE EMITS LIGHT WHEN THE RESISTANCE ACROSS SAID CONDUCTORS IS LOW AND CEASES TO EMIT LIGHT AS THE RESISTANCE INCREASES, AND
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |