Patent · US Expired

Device for closing the filling opening of a coke oven chamber

US4186056A · kind A · utility

8Cited by

4References

8Claims

0Family size

Assignee

Didier Engineering GmbH · DE

Inventors

Hans Muller · Essen, DE
Johannes Wulfmeier · Essen, DE

Key dates

Filing date	Jul 10, 1978
Grant date	Jan 29, 1980
Priority date	—
Expiry date	Jul 10, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10B25/24
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Frame has an opening therethrough and is positioned on a coke oven chamber ceiling with the opening of the frame aligned with a filling opening of the coke oven chamber ceiling. The frame has formed therein a recessed duct which surrounds the opening. A filling cover, adapted to close the opening, has extending therefrom a substantially annular projection. The duct in the frame has filled therein a displaceable material which is capable of being displaced by the projection, for example a pulverulent material. When the cover is positioned over the frame, the projection extends into and partially displaces the displaceable material, thereby sealing the cover with respect to the frame and closing the filling opening.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.