US3300196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for rotary kiln control with a calcining rate meter
Assignee: BENDY ENGINEERING Co
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Filing: 1964-03-02
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Granted: 1967-01-24
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Wilfred R Bendy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/20; F27B7/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
THE METHOD OF OPERATING A KILN INTO WHICH A CALCAREOUS MATERIAL IS FED AND CHEMICALLY CHANGED FROM A CARBONATE TO AN OXIDE THROUGH THE APPLICATION OF HEAT GENERATED BY THE COMBUSTION OF A FUEL WITH AIR IN THE KILN COMPRISING THE STEPS OF ANALYZING THE WASTE GASES IN THE KILN, GENERATING A SIGNAL FROM SAID WASTE GAS ANALYSIS PROPORTIONAL TO THE THEORETICAL CARBON DIOXIDE OF THE WASTE GAS, GENERATING A SIGNAL PROPORTIONAL TO THE FUEL RATE TO SAID KILN, COMBINING THE WASTE GAS SIGNAL WITH THE FUEL RATE SIGNAL THEREBY DEVELOPING A SIGNAL CORRESPONDING TO THE RATE OF CHEMICAL CHANGE AND ADJUSTING KILN OPERATION IN A DIRECTION TENDING TO MAINTAIN SAID LAST NAMED SIGNAL AT A PREDETERMINED VALUE.
References Cited (Backward Citations)
US2298257A
Cited
US3153587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |