Ronald C. Pampreen

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Bloomfield Hills, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Friction drive toroidal regenerator
- Patent number 4,922,997
- Issue date May 8, 1990
- Williams International Corporation
- Robert H. Meyer
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Archbound seal for toroidal regenerator
- Patent number 4,809,770
- Issue date Mar 7, 1989
- Williams International Corporation
- Robert H. Meyer
- F28 - HEAT EXCHANGE IN GENERAL