US4086145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven door lining
Assignee: WSW STAHL-UND WASSERBAU GmbH
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Filing: 1977-03-14
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Granted: 1978-04-25
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Expires: 1997-03-14
Abstract
Abstract A coke oven door lining assembly involving a vented, metallic door lining having barrier and support means serves to lower coke oven gas pressure at the door sealing edges and thereby reduce emissions. The lining may be open or closed along its length. Other advantages of the assembly involve reduced maintenance, simplicity of manufacture, and minimization of the occurrence of dense, hard to remove carbonaceous deposits on the lining.
Inventors
- 👤 Joseph M. Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:37
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
186 words
A vented metallic coke oven door lining assembly, connected to a coke oven door frame comprising: a metallic, generally flat barrier for preventing coal and coke from piling against said coke oven door frame and thereby preventing coke oven gas from easily rising to the top of the coke oven, said barrier having a length sufficient to extend approximately from top to bottom of a coke oven interior, a width sufficient to extend approximately from one coke oven sidewall to the other, and spaced apart a sufficient distance from and generally parallel to said coke oven door to permit coke oven gases to rise essentially unimpeded upwardly between said barrier and said coke oven door for supporting and maintaining said barrier in position; said support means not essentially obstructing the space between the barrier and coke oven door so as to enable coke oven gases to pass essentially unimpeded upwardly through said space and to thereby lower the gas pressure in the oven interior at the coke oven door location and to reduce the tendency of coke oven gases to leak from the coke oven interior.
Claim 2
Dependent Claim
186 words
A vented metallic coke oven door lining assembly, connected to a coke oven door frame comprising: a metallic, generally flat barrier for preventing coal and coke from piling against said coke oven door frame and thereby preventing coke oven gas from easily rising to the top of the coke oven, said barrier having a length sufficient to extend approximately from top to bottom of a coke oven interior, a width sufficient to extend approximately from one coke oven sidewall to the other, and spaced apart a sufficient distance from and generally parallel to said coke oven door to permit coke oven gases to rise essentially unimpeded upwardly between said barrier and said coke oven door for supporting and maintaining said barrier in position; said support means not essentially obstructing the space between the barrier and coke oven door so as to enable coke oven gases to pass essentially unimpeded upwardly through said space and to thereby lower the gas pressure in the oven interior at the coke oven door location and to reduce the tendency of coke oven gases to leak from the coke oven interior.
Claim 3
Dependent Claim
50 words
The vented metallic coke oven door lining assembly of claim 1, wherein: said metallic barrier and support means comprise at least one I-beam, having an outer flange portion serving as said barrier, a web serving as said support means, and an inner flange connected to said coke oven door frame.
Claim 4
Dependent Claim
44 words
The vented metallic coke oven door lining assembly of claim 2, wherein: said support means further includes support rods connected to and spaced between said flanges of said I-beam so as to minimize warpage of said I-beam during heating and cooling cycles during cokemaking.
Claim 5
Dependent Claim
44 words
The vented metallic coke oven door lining assembly of claim 2, wherein: said metallic door lining further comprises side enclosure members substantially extending the length of the door lining and attached to said I-beam near the ends of and spaced between its respective flanges.
Claim 6
Dependent Claim
21 words
The vented metallic coke oven door lining assembly of claim 2, wherein: said metallic door lining comprises a plurality of I-beams.
Claim 7
Dependent Claim
29 words
The vented metallic coke oven door lining assembly of claim 1, wherein: said barrier is coated with a heat-resistant material on its side adjacent to said coal and coke.
Claim 8
Dependent Claim
17 words
The vented metallic coke oven door lining assembly of claim 1 in combination with a coke oven.
Claim 9
Dependent Claim
66 words
The vented metallic coke oven door lining assembly of claim 4 which further includes: a cover member located at the top of said metallic door lining for preventing spillage of coal and coke into said space between the barrier and coke oven door and an opening in at least one side enclosure member to facilitate the flow of coke oven gases exiting from said door liner.
Claim 10
Dependent Claim
67 words
The vented metallic coke oven door lining assembly of claim 5 which further includes: a cover member located at the top of said metallic door lining for preventing spillage of coal and coke into said space between the barrier and coke oven door and an opening in at least one I-beam web so as to facilitate the flow of coke oven gases exiting from said door liner.
References Cited (Backward Citations)
GB189808414A
Cited
GB190600475A
Cited
DE513594C
Cited
FR677834A
Cited
DE569724C
Cited
US2308999A
Cited
US2853347A
Cited
US2993845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |