US4451726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln temperature control device
Assignee: Individual
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Filing: 1982-05-24
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Granted: 1984-05-29
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Expires: 2002-05-24
Abstract
Abstract A ceramic encased thermocouple placed within a kiln electrically controls an array of signal classifiers which, in turn, control the operation of the kiln heating elements. The temperature value at which the classifier array terminates the whole kiln heating operation is preselected as one of a plurality of discrete predetermined values corresponding to pyrometric cone temperature values.
Inventors
- 👤 Frank H. Anthony
- 👤 Vernon W. Coy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:50
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/1906; G05D23/1912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A kiln temperature controller for controlling the temperature of a kiln while firing ceramic ware having predetermined wall thickness, said controller comprising: a temperature sensor housed within ceramic material having a wall thickness approximately equal to one-half the expected wall thickness of ceramic ware to be fired in the kiln so as to approximately sense the internal temperature of the ceramic ware being fired in said kiln, and kiln heating means connected to be controlled by said temperature sensor.
Claim 2
Dependent Claim
79 words
A kiln temperature controller for controlling the temperature of a kiln while firing ceramic ware having predetermined wall thickness, said controller comprising: a temperature sensor housed within ceramic material having a wall thickness approximately equal to one-half the expected wall thickness of ceramic ware to be fired in the kiln so as to approximately sense the internal temperature of the ceramic ware being fired in said kiln, and kiln heating means connected to be controlled by said temperature sensor.
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) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |