US3975240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and system for determining the end of a coking process
Assignee: Didier Engineering GmbH
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Filing: 1976-01-07
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Granted: 1976-08-17
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Expires: 1996-01-07
Abstract
Abstract Separate temperature measuring elements are positioned on the outer wall surface of the riser of at least one oven chamber of a coke oven. During production of coke, the temperatures measured will be different. Upon completion of the coking process the difference between the measured temperatures will lessen to zero.
Inventors
- 👤 Horst Seeberg
- 👤 Horst Fach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:56
CPC Classifications
C; C10; C10B; C10B27/00; C10B27/06; C10B21/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
A system for determining the end of a coking process in a coke oven of the type wherein fill gases formed during the coking process are removed from oven chambers of the coke oven through risers, said system comprising: separate temperature measuring means, positioned on the riser of at least one oven chamber at locations thereon whereat the temperatures are different during the production of coke but whereat said temperatures are equal at the completion of the coking process, for detecting said temperatures and generating signals representative thereof and for providing an indication of the completion of the coking process when the difference between said signals lessens.
Claim 2
Independent Claim
107 words
A system for determining the end of a coking process in a coke oven of the type wherein fill gases formed during the coking process are removed from oven chambers of the coke oven through risers, said system comprising: separate temperature measuring means, positioned on the riser of at least one oven chamber at locations thereon whereat the temperatures are different during the production of coke but whereat said temperatures are equal at the completion of the coking process, for detecting said temperatures and generating signals representative thereof and for providing an indication of the completion of the coking process when the difference between said signals lessens.
Claim 3
Dependent Claim
22 words
A system as claimed in claim 1, wherein said temperature measuring means are positioned on the outer wall surface of said riser.
Claim 4
Dependent Claim
19 words
A system as claimed in claim 2, wherein said temperature measuring means are positioned in pockets on said riser.
Claim 5
Dependent Claim
14 words
A system as claimed in claim 3, wherein said pockets project from said riser.
Claim 6
Dependent Claim
14 words
A system as claimed in claim 3, wherein said pockets project into said riser.
Claim 7
Dependent Claim
47 words
A system as claimed in claim 1, wherein said riser has a bend therein, a first of said temperature measuring means being positioned on a first arm of said bend, and a second of said temperature measuring means being positioned on a second arm of said bend.
Claim 8
Dependent Claim
23 words
A system as claimed in claim 1, wherein said temperature measuring means are positioned on the risers of all of said oven chambers.
Claim 9
Dependent Claim
88 words
A process for determining the end of a coking process in a coke oven of the type wherein fill gases formed during the coking process are removed from oven chambers of the coke oven through risers, said process comprising: measuring the temperatures of the riser of at least one oven chamber at spaced locations thereon whereat such temperatures are different during the production of coke but whereat said temperatures are equal at the completion of the coking process; and detecting when the difference between the measured temperatures lessens.
Claim 10
Dependent Claim
88 words
A process for determining the end of a coking process in a coke oven of the type wherein fill gases formed during the coking process are removed from oven chambers of the coke oven through risers, said process comprising: measuring the temperatures of the riser of at least one oven chamber at spaced locations thereon whereat such temperatures are different during the production of coke but whereat said temperatures are equal at the completion of the coking process; and detecting when the difference between the measured temperatures lessens.
Claim 11
Dependent Claim
25 words
A process as claimed in claim 8, further comprising, upon the detection of a lessening of said temperature difference, terminating operation of said coke oven.
Claim 12
Dependent Claim
21 words
A process as claimed in claim 8, wherein said temperatures are measured on the risers of all of said oven chambers.
Claim 13
Dependent Claim
20 words
A process as claimed in claim 8, wherein said temperatures are measured on the outer wall surface of said riser.
References Cited (Backward Citations)
US3556947A
Cited
US3607660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |