J. Roy Hack Jr.

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Vent apparatus for fuel injection system
- Patent number 4,878,474
- Issue date Nov 7, 1989
- J. Roy Hack
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Emergency fuel system apparatus
- Patent number 4,874,013
- Issue date Oct 17, 1989
- J. Roy Hack
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Carburetor float chamber emergency fuel reservoir apparatus
- Patent number 4,367,181
- Issue date Jan 4, 1983
- J. Roy Hack
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS