Graham Walker

Follow

Person

Scottsdale, AZ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Refrigerant expansion device with means for capturing condensed con...
- Patent number 4,738,122
- Issue date Apr 19, 1988
- General Pneumatics Corporation
- Graham Walker
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Joule-Thomson apparatus with temperature sensitive annular expansio...
- Patent number 4,631,928
- Issue date Dec 30, 1986
- General Pneumatics Corporation
- Graham Walker
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...