Thomas P Rudy

US Patent:

41660455, Aug 28, 1979

Filed:

May 2, 1973

Appl. No.:

5/356676

Inventors:

Thomas P. Rudy - Saratoga CA
Toshio W. Nakagawa - San Jose CA

Assignee:

United Technologies Corporation - E. Hartford CT

International Classification:

B01D 1506

US Classification:

252414

Abstract:

Combustion catalysts for solid propellants are extracted with a solution comprising a solvent in which the catalyst is essentially insoluble and a solute which is an effective chelating agent for metal ions which are present as interfering impurities in the combustion catalysts. This treatment does not affect the activity of the catalyst as a combustion catalyst in a solid propellant; however, the removal of the metal ions greatly increases the pot life of the solid propellant composition prior to cure and enhances its stability after cure.

US Patent:

48549819, Aug 8, 1989

Filed:

Apr 30, 1987

Appl. No.:

7/044096

Inventors:

Forrest R. Goodson - San Jose CA
Mark E. Dudley - San Jose CA
Thomas P. Rudy - Saratoga CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C06B 4500

US Classification:

149 2

Abstract:

A highly active, finely divided ferric oxide burning rate catalyst and method for making the same. The catalyst is made by vaporizing an iron-containing compound that is capable of vaporization at a temperature below about 500. degree. C. , and is capable of forming ferric oxide when reacted with an oxygen-containing atmosphere at temperatures below about 500. degree. C. The iron-containing compound is then oxidized in an oxygen-containing atmosphere. The ferric oxide burning rate catalyst made by this process is particularly adapted for use in a composite solid rocket propellant. This process provides an ultra pure, highly active, finely divided burning rate catalyst.

US Patent:

48819948, Nov 21, 1989

Filed:

Apr 30, 1987

Appl. No.:

7/044097

Inventors:

Thomas P. Rudy - Saratoga CA
Forrest R. Goodson - San Jose CA
Mark E. Dudley - San Jose CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

D03D 2300

US Classification:

1491094

Abstract:

A method of making a ferric oxide burning rate catalyst that results in a highly active, finely divided burning rate enhancing catalyst. An iron-containing compound that is capable of vaporization at a temperature below about 500. degree. C. is vaporized. A mixture comprising the vaporized iron-containing compound is combusted with a gas that is capable of supporting combustion in an oxygen environment and does not condense below about 100. degree. C. The ferric oxide burning rate catalyst made by this process is particulary adapted for use in a composite solid rocket propellant. This process provides an ultra pure, highly active, finely divided burning rate catalyst.

US Patent:

50473824, Sep 10, 1991

Filed:

Dec 12, 1988

Appl. No.:

7/283117

Inventors:

Thomas P. Rudy - Saratoga CA
Forrest R. Goodson - San Jose CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01J 2374

US Classification:

502338

Abstract:

A method for making a ferric oxide burning rate enhancing catalyst that results in a smaller particle size high surface area catalyst. The method comprises diluting a gaseous iron-containing compound with an oxygen-containing gas at a temperature such that the rate of oxidation is negligible and oxidizing the diluted gaseous iron-containing compound in an oxygen-containing environment. Ferric oxide particles are formed, suspended in the oxygen-containing environment.

US Patent:

42216176, Sep 9, 1980

Filed:

Sep 30, 1966

Appl. No.:

4/583458

Inventors:

Thomas P. Rudy - Saratoga CA
Jack K. West - Palo Alto CA

Assignee:

United Technologies Corporation - East Hartford CT

International Classification:

C06B 4510

US Classification:

149 195

Abstract:

Certain surfactants as additives for castable composite solid propellants improve the physical properties of the cured solid propellant and improve the castability of the uncured solid propellant mix.

US Patent:

53342380, Aug 2, 1994

Filed:

Nov 27, 1990

Appl. No.:

7/618773

Inventors:

Forrest R. Goodson - San Jose CA
Thomas P. Rudy - Saratoga CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B03C 380

US Classification:

95 59

Abstract:

Disclosed is a novel method for cleaning an electrostatic precipitator by directing a stream of cleaning gas through a flexible tube positioned inside the electrostatic precipitator. The stream of gas causing the flexible tube to move randomly directing the stream of gas at the precipitator plates with sufficient force to dislodge particles adhered to such plates.

US Patent:

42630711, Apr 21, 1981

Filed:

Jul 19, 1974

Appl. No.:

5/490159

Inventors:

Leland S. Bain - San Jose CA
Thomas P. Rudy - Saratoga CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C06B 4510
C06D 500

US Classification:

149 199

Abstract:

The addition of copper phthalocyanine to composite solid propellant compositions has been found to substantially reduce the tendency toward combustion instability of the propellant. The invention is particularly useful in connection with smokeless composite propellants employing hydroxy-terminated polybutadiene as a binder.

US Patent:

51696207, Dec 8, 1992

Filed:

Nov 27, 1990

Appl. No.:

7/618772

Inventors:

Thomas P. Rudy - Saratoga CA
Forrest R. Goodson - San Jose CA

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C01G 4902
C01G 4904
B01J 1202

US Classification:

423633

Abstract:

An improved method of manufacturing superfine iron oxide particles by introducing a gas mixture of a non-oxidizing gas and an iron-containing compound into a stream of heated oxidizing gas, wherein the improvement resides in the use of an insulated injector to introduce the gas mixtures into the heated oxidizing gas stream.