Ronald B Harris

US Patent:

57157243, Feb 10, 1998

Filed:

Sep 3, 1996

Appl. No.:

8/707244

Inventors:

Charles J. Crout - Avon OH
Ronald N. Harris - Fort Loudon PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

F15B 2102
B21J 912
B21J 920

US Classification:

72438

Abstract:

In forging hammers, according to the present invention, more than one inlet valve is employed and more than one exhaust may be employed. The force of impact for a particular blow is controlled by the number of valves employed and the timing of the opening and closing of those valves relative to one another. By making successive adjustments with different combination of valves, the controls may be calibrated so that the same ram force may be repeated. Knowing the valve settings required to produce differing amounts of force, it is possible to program the settings into the memory of a computer, so that when a particular impact force is selected the appropriate valve timing will be reproduced and the desired force obtained. It is also possible to set up a sequence of blows of differing selected force, setting each blow using the computer memory.

US Patent:

41657160, Aug 28, 1979

Filed:

Jun 17, 1977

Appl. No.:

5/807709

Inventors:

John W. Thomas - Shaker Heights OH
Ronald L. Harris - Clinton OH

Assignee:

The Standard Oil Company - Cleveland OH

International Classification:

F22B 3318

US Classification:

122 1A

Abstract:

An air-cooled process heat exchanger is connected to a process fired heater which uses ambient air for combustion. The exhaust air from the heat exchanger is used as preheated air to the combustion furnace, resulting in energy savings and decreased fuel consumption.

US Patent:

61628492, Dec 19, 2000

Filed:

Jan 11, 1999

Appl. No.:

9/228265

Inventors:

Qizhuo Zhuo - Vista CA
Ronald M. Harris - North Royalton OH
Dennis C. Skovran - Niles OH
Leo F. Lightner - Rocky River OH
Michael S. Randall - Leucidia CA
Vernon E. Stygar - San Diego CA

Assignee:

Ferro Corporation - Cleveland OH

International Classification:

C08K 338
C08L 6706

US Classification:

524404

Abstract:

This invention relates to a thermally conductive moldable polymer blend comprising a thermoplastic polymer having a tensile at yield of at least 10,000 psi; at least 60% by weight of a mixture of boron nitride powders having an average particle size of at least 50 microns; and a coupling agent. The composition displays a thermal conductivity of at least about 15 W/m. degree. K and it is capable of being molded using high speed molding techniques such as injection molding.