US3974038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven door
Assignee: Raymond Kaiser Engineers Inc
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Filing: 1971-12-22
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Granted: 1976-08-10
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Expires: 1991-12-22
Abstract
Abstract A coke oven door, having a sealing ring that coacts with a plurality of spring plungers, is provided with a plurality of equalizing pads located between the top and bottom latches to ensure that the sealing ring is seated at these locations. Also the sealing ring is installed in slots in the door frame which are open at both ends.
Inventors
- 👤 Linwood G. Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
In a coke oven door, the improvement comprising: a. a rectangular door frame supporting a sealing assembly including: 1. an elongate bar encompassing said door frame and having a groove in each one of the longer sides of said elongate bar and a groove in each one of the shorter sides of said elongate bar, with the said grooves intersecting at the corners of said frame; and 2. a sealing bar in each groove with the ends of the sealing bars in the grooves of one pair of opposite sides at said corners overlapping the ends of the sealing bars in the grooves of the other pair of opposite sides. b. a plurality of side stops mounted to said door frame, each said stop comprising: 1. a plate member pivotally mounted to said door frame; and 2. a replaceable shoe attached to said plate, with said plate and said shoe coacting with one of said elongate bars.
Claim 2
Dependent Claim
157 words
In a coke oven door, the improvement comprising: a. a rectangular door frame supporting a sealing assembly including: 1. an elongate bar encompassing said door frame and having a groove in each one of the longer sides of said elongate bar and a groove in each one of the shorter sides of said elongate bar, with the said grooves intersecting at the corners of said frame; and 2. a sealing bar in each groove with the ends of the sealing bars in the grooves of one pair of opposite sides at said corners overlapping the ends of the sealing bars in the grooves of the other pair of opposite sides. b. a plurality of side stops mounted to said door frame, each said stop comprising: 1. a plate member pivotally mounted to said door frame; and 2. a replaceable shoe attached to said plate, with said plate and said shoe coacting with one of said elongate bars.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |