The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 1980
Filed:
May. 31, 1978
Applicant:
Inventors:
Hans Mathiak, Bonen, DE;
Hans Oldengott, Bockum-Hovel, DE;
Assignee:
Ruhrkohle, AG., Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10B / ; C10B / ;
U.S. Cl.
CPC ...
202248 ; 1101 / ; 202242 ;
Abstract
A plug for protecting coke-oven chamber doors from the action of the internal temperature in the oven, which has a plane outside facing away from the door body, and which is built up from a plurality of refractory bricks and can be mounted on the inside of the door body. The bricks have recesses which each penetrate the plug and bricks for receiving bolts which can be screwed into bores in the plug side of the door.