Donald Kuhlenschmidt

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Evansville, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Absorption cooling and heating refrigeration system flow valve
- Patent number 6,000,235
- Issue date Dec 14, 1999
- Gas Research Institute
- Donald Kuhlenschmidt
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Gax absorption cycle with secondary refrigerant
- Patent number 5,911,746
- Issue date Jun 15, 1999
- Gas Research Institute
- Donald Kuhlenschmidt
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Helical absorber construction
- Patent number 5,729,999
- Issue date Mar 24, 1998
- Gas Research Institute
- Donald Kuhlenschmidt
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Absorption cooling system utilizing helical absorbers
- Patent number 5,689,971
- Issue date Nov 25, 1997
- Gas Research Institute
- Donald Kuhlenschmidt
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Hydraulic ammonia solution pump
- Patent number 5,624,246
- Issue date Apr 29, 1997
- Gas Research Institute
- Donald Kuhlenschmidt
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Absorption refrigeration system with precooler and inert gas control
- Patent number 4,137,727
- Issue date Feb 6, 1979
- Arkla Industries, Inc.
- Donald Kuhlenschmidt
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...