Henry R Bronke

44527497, Jun 5, 1984

Sep 14, 1982

6/417983

Robert E. Kolvek - Ontario, CA
Henry R. Bronke - Buffalo NY
Nicholas W. Foit - Hamburg NY
Robert J. Kish - Tonawanda NY

Modern Refractories Service Corp. - NY
National Steel Corp. - DE
Republic Steel Corp. - NJ

F27D 116

264 30

A high temperature refractory brick wall is repaired by removing and replacing damaged brick while the wall is maintained at a temperature below normal operating temperature but sufficiently high to avoid damage from contraction resulting from cooling. New brick having a coefficient of thermal expansion compatible with the heated wall are used to avoid cracking of the wall due to expansion during heat-up. Workers wearing protective clothing, preferably incorporating a circulating fluid cooling system, remove the damaged brick and install new brick in their place in walls having surface temperatures of about 500. degree. F. or higher and internal temperatures substantially above 500. degree. F. , preferably at least about 1500. degree. F.

56799896, Oct 21, 1997

Feb 15, 1995

8/389141

John H. Buscher - East Amherst NY
Mark P. Ernewein - Hamburg NY
Henry R. Bronke - Colden NY

J. H. Buscher, Inc. - Orchard Park NY

H02K 1514
H02K 504

310 42

More reliable torque motors are provided with reduced susceptibility to external vibration while also maximizing structural damping without requiring the usual potting with resins and adhesives, bolting hardware, etc. Enhanced torque motor dependability is achieved by clamping torque motor assemblies rigidly in place through frictional forces generated by a generally thin walled tubular housing preferably having surface elevations which compressively engage the motor assembly through an interference fit. The more reliable torque motors are especially useful in aviation applications as actuators for servovalves, and wherever highly reliable virtual fail-safe performance is required.