Usx Corporation

Jerry Hann

John F McDermott

Miles Gerald Sanderson

Joseph S Giunta

Yoni Adonyi

Paul M Albritton

A coke oven door, which includes a metal frame, means for latching the door in a closed position, a sealing member extending around the perimeter of the frame having forward edges adapted to contact a sealing surface on a coking chamber door jamb for effecting a continuous seal. The coke oven battery also having at least one attached protrusion proximate the coking chamber extending outwardly from the battery, such as a latch or a guide bar, said door comprising a door plug passing with clearance and fitting into the coke oven, said plug having an inner surface that forms an interior end wall of the coke oven wherein a first plane is formed by the perimeter of said inner surface. Said door further having a first horizontal dimension between said forward edge of said sealing member and said first plane, and said coke oven battery having a second horizontal dimension between the sealing surface on the door jamb and a second plane that is parallel to a plane formed by said sealing surface of the door jamb which includes the furthest point on the protrusion from the sealing surface on the door jamb, wherein the first dimension is greater than the second dimension, so that when the coke oven door is being placed on the coke oven and is improperly aligned, said door plug comes into contact with the coke oven door jamb to stop further movement of the door and prevent the sealing member from coming into contact with the protrusion.

Coke oven door

In the fabricating of a mandrel bar, a plurality of used mandrel bar segments are provided, each of which has a central bore comprising a smooth surface portion and a threaded portion. Each segment has a circumferential recess at an end thereof and a bevelled surface adjoining the recess and extending inwardly of the segment at an angle to the vertical. A coupling has a smooth central boss section and threaded ends. A connection is made by threadedly connecting the ends of the coupling with a pair of opposed mandrel segments, with the smooth boss of the coupling fitting inside the smooth portion of the bore of each segment to effect, with the threaded joint, a straight, tight joint. A weld groove of gull-shaped cross-section is provided between the opposed ends of a pair of mandrel segments, having a body portion formed by a pair of opposed bevelled surfaces and wings formed by a pair of opposed recesses.

Growing community of inventors

North Huntingdon, PA, United States of America

Jerry Hann