Patent US2121051A successfully refreshed from Google Patents.
US3269715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln furnace controller
Assignee: Coe Manufacturing Co
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Filing: 1964-04-02
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Granted: 1966-08-30
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Walker L Wellford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
F; F26; F26B; F26B23/00; F26B23/02; F26B21/00; F26B21/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A KILN SYSTEM, THE COMBINATION COMPRISING (A) A KILN CHAMBER FOR DRYING AND CONDITIONING MATERIAL, (B) A KILN FURNACE OF THE TYPE HAVING A FIRST REGION CONTAINING A GAS BURNER FOR COMBUSTING HOT GASES, AND A SECOND REGION CONTAINING MEANS FOR SPRAYING WATER INTO SAID COMBUSTED GASES PRIOR TO CIRCULATION THROUGH SAID KILN CHAMBER, (C) A FIRST SENSOR LOCATED IN SAID KILN FOR MEASURING THE DRY BULB TEMPERATURE OF CIRCULATING KILN GASES, (D) A SECOND SENSOR LOCATED IN SAID KILN FOR MEASURING THE WET BULB TEMPERATURE OF SAID KILN GASES, (E) A REGULATOR MEANS CONNECTED TO RECEIVE SIGNALS FROM SAID FIRST AND SECOND SENSORS AND GENERATING A PAIR OF "HEAT" AND "HUMIDITY" OUTPUT SIGNALS INDICATING, RESPECTIVELY, THE INSTANTANEOUS HEAT AND HUMIDITY REQUIREMENTS OF SAID CIRCULATING KILN GASES AS DETERMINED BY COMPARISON OF SAID SENSOR SIGNALS WITH PREDETERMINED SETTINGS OF SAID REGULATOR, AND
Claim 2
Dependent Claim
143 words
IN A KILN SYSTEM, THE COMBINATION COMPRISING (A) A KILN CHAMBER FOR DRYING AND CONDITIONING MATERIAL, (B) A KILN FURNACE OF THE TYPE HAVING A FIRST REGION CONTAINING A GAS BURNER FOR COMBUSTING HOT GASES, AND A SECOND REGION CONTAINING MEANS FOR SPRAYING WATER INTO SAID COMBUSTED GASES PRIOR TO CIRCULATION THROUGH SAID KILN CHAMBER, (C) A FIRST SENSOR LOCATED IN SAID KILN FOR MEASURING THE DRY BULB TEMPERATURE OF CIRCULATING KILN GASES, (D) A SECOND SENSOR LOCATED IN SAID KILN FOR MEASURING THE WET BULB TEMPERATURE OF SAID KILN GASES, (E) A REGULATOR MEANS CONNECTED TO RECEIVE SIGNALS FROM SAID FIRST AND SECOND SENSORS AND GENERATING A PAIR OF "HEAT" AND "HUMIDITY" OUTPUT SIGNALS INDICATING, RESPECTIVELY, THE INSTANTANEOUS HEAT AND HUMIDITY REQUIREMENTS OF SAID CIRCULATING KILN GASES AS DETERMINED BY COMPARISON OF SAID SENSOR SIGNALS WITH PREDETERMINED SETTINGS OF SAID REGULATOR, 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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |