Walter L. Chappell

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Power converter and method
- Patent number 4,258,271
- Issue date Mar 24, 1981
- Walter L. Chappell
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method and apparatus for gas induced production of liquid from wells
- Patent number 4,087,207
- Issue date May 2, 1978
- Walter L. Chappell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable choke
- Patent number 4,047,695
- Issue date Sep 13, 1977
- Chappell Industries, Inc.
- John T. Cleveland
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for generating electricity and power from natural water flow
- Patent number 4,023,041
- Issue date May 10, 1977
- Walter L. Chappell
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...