Patent US4293389A successfully refreshed from Google Patents.
US4293389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closure construction for sealing the sealing edge of a coke oven door in a framed coke oven opening
Assignee: Carl Still GmbH and Co KG
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Filing: 1980-05-16
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Granted: 1981-10-06
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Expires: 2000-05-16
Abstract
Abstract A door closure construction for sealing the sealing edge of a coke oven door in a coke oven having an opening with an outer rigid frame bounding the opening, comprises an adjustable inner frame which fits into a recess of the outer frame and may be adjustably positioned in respect thereto and in respect to the sealing edge of the coke oven door.
Inventors
- 👤 Heinrich-Josef Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:32
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/16; C10B25/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
An improved sealing device for a coke oven of the type having an opening, a door and a door sealing frame for closing the opening, the door having a door body and a sealing edge extending along the periphery of the door body, the door sealing frame being of the type having a fixed outer frame and an inner frame inserted within and mounted to the outer frame, and the inner frame having a sealing surface adapted to sealingly receive the sealing edge of the door body, the improvement comprising means for adjustably mounting the inner frame to the outer frame in spaced-apart relationship therefrom to define a spacing therebetween, said adjusting means including screw means for detachably connecting the inner frame to the outer frame, and a plurality of spacers having unequal thickness exchangeably mounted within said spacing to maintain the inner and outer frame in said spaced-apart relationship.
Claim 2
Dependent Claim
150 words
An improved sealing device for a coke oven of the type having an opening, a door and a door sealing frame for closing the opening, the door having a door body and a sealing edge extending along the periphery of the door body, the door sealing frame being of the type having a fixed outer frame and an inner frame inserted within and mounted to the outer frame, and the inner frame having a sealing surface adapted to sealingly receive the sealing edge of the door body, the improvement comprising means for adjustably mounting the inner frame to the outer frame in spaced-apart relationship therefrom to define a spacing therebetween, said adjusting means including screw means for detachably connecting the inner frame to the outer frame, and a plurality of spacers having unequal thickness exchangeably mounted within said spacing to maintain the inner and outer frame in said spaced-apart relationship.
Claim 3
Dependent Claim
61 words
A door closure according to claim 1, wherein said spacers further comprise a spacer having an L-shaped configuration, said spacer including an upstanding part, and wherein said inner frame has an oblong slot disposed behind said upstanding part, and said screw means comprises a bolt extending through said upstanding part and through said oblong slot into engagement with said outer frame.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |