Patent US2360323A successfully refreshed from Google Patents.
Patent US4200498A successfully refreshed from Google Patents.
US4200498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relieving coke oven door
Assignee: United States Steel Corp
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Filing: 1978-07-07
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Granted: 1980-04-29
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Expires: 1998-07-07
Abstract
Abstract A coke oven door having a refractory plug with vertical gas channels on each side, each channel having a plurality of tributary vents originating at the face of the plug normally exposed to a relatively high pressure area and leading upwardly to the vertical gas channels at about a 30 DEG angle to permit reduction of the gas pressure through the channels, behind the door seal.
Inventors
- 👤 Julio G. Dinello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:16
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06; C10B25/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A coke oven door comprising a vertically extended door plate and a plug thereon of substantially the area of said vertically extended plate, said plug being substantially monolithic and having vertically disposed gas channels extending along the length thereof, said vertically disposed channels being formed in the sides of said plug so that each of said vertical channels is exposed to and communicates with the interior of the coke oven along its entire length, each vertical gas channel communicating with and connected to a plurality of tributary channels, said tributary channels being formed in the respective sides of said plug so that each tributary channel is exposed to and communicates with the interior of the coke oven chamber, each of said tributary channels extending along the side of said plug toward the oven face of said plug and downwardly to form an angle of between about 15° and 45° with said vertical channels.
Claim 2
Dependent Claim
153 words
A coke oven door comprising a vertically extended door plate and a plug thereon of substantially the area of said vertically extended plate, said plug being substantially monolithic and having vertically disposed gas channels extending along the length thereof, said vertically disposed channels being formed in the sides of said plug so that each of said vertical channels is exposed to and communicates with the interior of the coke oven along its entire length, each vertical gas channel communicating with and connected to a plurality of tributary channels, said tributary channels being formed in the respective sides of said plug so that each tributary channel is exposed to and communicates with the interior of the coke oven chamber, each of said tributary channels extending along the side of said plug toward the oven face of said plug and downwardly to form an angle of between about 15° and 45° with said vertical channels.
Claim 3
Dependent Claim
18 words
The door of claim 1 wherein there are at least three tributaries for each two feet of channel.
Claim 4
Dependent Claim
22 words
The door of claim 1 wherein the plug comprises a plurality of sections and is provided with expansion spaces between said sections.
Claim 5
Dependent Claim
30 words
The door of claim 1 in which the vertical gas channels are located between about one-fourth and one-half the distance from the door plate to the back of the plug.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |