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:
Jun. 18, 1979
Applicant:
Inventors:
Timen Vander, Ursem, NL;
Nicolaas J Thijssen, Santpoort, NL;
Jan F de Blok, Beverwijk, NL;
Jan Middel, Nieuwe Sluis, NL;
Assignee:
Hoogovens Ijmuiden, B.V., IJmuiden, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10B / ; C10B / ; C10B / ; C10B / ;
U.S. Cl.
CPC ...
202113 ; 202255 ; 202263 ; 202270 ; 201-1 ; 201 35 ; 201 41 ;
Abstract
Injection of steam into the ascension pipe of each coking chamber in a coking plant is continued for a period of time after charging of that chamber so as to create a slightly sub-atmospheric pressure in the chamber during the initial stage of the coking process, in order to reduce leakage of gas and fumes to the atmosphere past the doors and filling openings. A time clock operated by the coke pusher machine or by the coal charging machine stops this injection of steam after a desired period of time.