Patent US3881995A successfully refreshed from Google Patents.
US3881995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for sealing a coking chamber
Assignee: Individual
•
Filing: 1973-12-17
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Granted: 1975-05-06
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Expires: 1993-12-17
Abstract
Abstract A method and apparatus for providing a good seal between sealing edges and sealing surfaces of a coke oven door includes placing a high temperature resistant, compressible and deformable sealing member on the door between the sealing edge and sealing surface.
Inventors
- 👤 Jr Herbert A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:01
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
147 words
In a coke oven or the like having an elongated heating chamber for receiving coal to be coked, a door opening at an end of said chamber, a door jamb surrounding the door opening and having a flat sealing surface extending around its periphery, and a door having a sealing edge extending around the periphery thereof and adapted to engage said sealing surface, said sealing edge being at the end of a metal strip arranged generally normal to said sealing surface; the improvement comprising a detachable relatively thin high temperature resistant, deformable and compressible sealing member adapted to be received between said sealing surface and said sealing edge for the full extent of the edge, said sealing member including a plurality of contacting layers with one outer layer adapted to rest on said sealing surface and the other outer layer adapted to bear against said sealing edge.
Claim 2
Dependent Claim
147 words
In a coke oven or the like having an elongated heating chamber for receiving coal to be coked, a door opening at an end of said chamber, a door jamb surrounding the door opening and having a flat sealing surface extending around its periphery, and a door having a sealing edge extending around the periphery thereof and adapted to engage said sealing surface, said sealing edge being at the end of a metal strip arranged generally normal to said sealing surface; the improvement comprising a detachable relatively thin high temperature resistant, deformable and compressible sealing member adapted to be received between said sealing surface and said sealing edge for the full extent of the edge, said sealing member including a plurality of contacting layers with one outer layer adapted to rest on said sealing surface and the other outer layer adapted to bear against said sealing edge.
Claim 3
Dependent Claim
54 words
The combination of claim 1 in which said deformable sealing member is normally flat and includes outer layers of steel foil one adapted to rest on said sealing surface and the other adapted to bear against said sealing edge, and a layer of high temperature resistant insulating material between the layers of steel foil.
Claim 4
Dependent Claim
22 words
The combination of claim 2 in which said layer of high temperature resistant insulating material is a combination of alumina and silica.
Claim 5
Dependent Claim
17 words
The combination of claim 1 in which said deformable sealing member extends completely across said door opening.
Claim 6
Dependent Claim
103 words
The combination of claim 2 in which said door includes a refractory plug extending into said chamber and a surface on said metal member Extending outwardly from said sealing edge, said deformable sealing member includes a first portion adapted to bear on said sealing surface, a second portion extending from said first portion along said outwardly extending door surface, and an inwardly extending portion at the outer end of said second portion formed by a portion of said outer layers of steel foil, and means secured to said inwardly extending portion of said sealing means to secure said sealing means to said door.
Claim 7
Dependent Claim
142 words
In a coke oven or the like having an elongated heating chamber for receiving coal to be coked, a door opening at an end of said chamber, a door jamb surrounding the door opening and having a flat sealing surface extending around its periphery, and a door having a sealing edge extending around the periphery thereof and adapted to engage said sealing surface; the improvement comprising a detachable relatively thin high temperature resistant, deformable and compressible sealing member adapted to be received between said sealing surface and said sealing edge and extending across said edge in its peripheral extent, said deformable sealing member including outer layers of steel foil one adapted to rest on said sealing surface and the other adapted to bear against said sealing edge, and a layer of high temperature resistant insulating material between the layers of steel foil.
Claim 8
Dependent Claim
142 words
In a coke oven or the like having an elongated heating chamber for receiving coal to be coked, a door opening at an end of said chamber, a door jamb surrounding the door opening and having a flat sealing surface extending around its periphery, and a door having a sealing edge extending around the periphery thereof and adapted to engage said sealing surface; the improvement comprising a detachable relatively thin high temperature resistant, deformable and compressible sealing member adapted to be received between said sealing surface and said sealing edge and extending across said edge in its peripheral extent, said deformable sealing member including outer layers of steel foil one adapted to rest on said sealing surface and the other adapted to bear against said sealing edge, and a layer of high temperature resistant insulating material between the layers of steel foil.
Claim 9
Dependent Claim
22 words
The combination of claim 6 in which said layer of high temperature resistant insulating material is a combination of alumina and silica.
Claim 10
Independent Claim
101 words
A method of sealing a coking chamber or the like, having a door jamb having an opening into said chamber and a peripheral flat sealing surface which comprises providing a door having a peripheral sealing edge on the end of a metal member generally normal to said sealing surface and adapted to engage said sealing surface, attaching a high temperature resistant relatively thin deformable sealing means to said door with a portion thereof bearing against said sealing edge, and then moving said door into closed position with said sealing means in tight engagement with said sealing surface and said sealing edge.
Claim 11
Independent Claim
101 words
A method of sealing a coking chamber or the like, having a door jamb having an opening into said chamber and a peripheral flat sealing surface which comprises providing a door having a peripheral sealing edge on the end of a metal member generally normal to said sealing surface and adapted to engage said sealing surface, attaching a high temperature resistant relatively thin deformable sealing means to said door with a portion thereof bearing against said sealing edge, and then moving said door into closed position with said sealing means in tight engagement with said sealing surface and said sealing edge.
Claim 12
Dependent Claim
21 words
The method of claim 8 in which said sealing means completely covers said door opening to protect the door from heat.
Claim 13
Dependent Claim
29 words
The method of claim 8 in which said sealing means is normally flat and comprises a layer of high temperature resistant insulating material between outer layers of steel foil.
References Cited (Backward Citations)
US2662053A
Cited
US3149615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |