DAVID A LEHR
Engineers in Medina, OH
License number
Pennsylvania PE035761E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Medina, OH 44256
Pennsylvania
Pennsylvania
Personal information
See more information about DAVID A LEHR at radaris.comName
Address
Phone
4017 Eldine Ave, York, PA 17408
4400 Melrose Dr LOT 51, Wooster, OH 44691
PO Box 237, Alburtis, PA 18011
PO Box 16, Alburtis, PA 18011
912 Anne Ave, Charleroi, PA 15022
Professional information
Spray Cooled Hood System For Handling Hot Gases From A Metallurgical Vessel Utilizing Pneumatic Processing Of Molten Metal
US Patent:
5330161, Jul 19, 1994
Filed:
Jul 8, 1993
Appl. No.:
8/088800
Inventors:
David A. Lehr - Medina OH
Gordon R. Roberts - North Olmsted OH
Mark T. Arthur - Lakewood OH
Gordon R. Roberts - North Olmsted OH
Mark T. Arthur - Lakewood OH
Assignee:
Ucar Carbon Technology Corporation - Danbury CT
International Classification:
C21C 538
US Classification:
266158
Abstract:
Hood assembly for pneumatic process metallurgical vessel, such as BOF, which includes removeable spray cooled sub-assemblies at predetermined locations in the hood assembly.
Apparatus For Lengthwise Graphitization (Lwg) Of Carbon Electrode Bodies
US Patent:
5631919, May 20, 1997
Filed:
Nov 21, 1995
Appl. No.:
8/561369
Inventors:
Allan W. Intermill - Strongsville OH
Francis E. Wise - Medina OH
David A. Lehr - Medina OH
Francis E. Wise - Medina OH
David A. Lehr - Medina OH
Assignee:
UCAR Carbon Technology Corporation - Danbury CT
International Classification:
H05B 300
US Classification:
373120
Abstract:
A furnace apparatus and method for the lengthwise graphitization (LWG) of carbon bodies are provided which utilize U-shaped metal furnace sections mounted on stationary rib supports to contain carbon electrode bodies and surrounding thermally insulating pack material. Vertical flues are provided between parallel rows of U-shaped metal furnace sections to accelerate cooling of graphitized electrode bodies and in a further embodiment water droplets are additionally sprayed on the metal furnace sections.
Modular Spray Cooled Side-Wall For Electric Arc Furnaces
US Patent:
5561685, Oct 1, 1996
Filed:
Apr 27, 1995
Appl. No.:
8/429923
Inventors:
David A. Lehr - Medina OH
Gordon R. Roberts - North Olmstead OH
Frank H. Miner - North Olmstead OH
William H. Burwell - Olmstead Falls OH
Mark T. Arthur - Lakewood OH
Gordon R. Roberts - North Olmstead OH
Frank H. Miner - North Olmstead OH
William H. Burwell - Olmstead Falls OH
Mark T. Arthur - Lakewood OH
Assignee:
UCAR Carbon Technology Corporation - Danbury CT
International Classification:
F27D 112
US Classification:
373 76
Abstract:
Spray cooled side-wall assembly for an electric arc furnace which includes individual spray cooled segments joined together to form a furnace side-wall. One or more of the segments can be arch-shaped and surround a spray cooled sub-assembly to address conditions of high thermal stress.