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John H. Hedger
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Lakeside, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Reciprocating engine with improved piston movement stabilizing means
Patent number
4,333,388
Issue date
Jun 8, 1982
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Reciprocating engine with improved feed and exhaust valve means
Patent number
4,267,765
Issue date
May 19, 1981
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Fluid pressure driven reciprocating engine
Patent number
4,249,454
Issue date
Feb 10, 1981
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Reciprocating engine with improved main bearing
Patent number
4,241,640
Issue date
Dec 30, 1980
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Reciprocating engine with improved power output linkage
Patent number
4,238,990
Issue date
Dec 16, 1980
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Reciprocating engine with improved power output means
Patent number
4,213,377
Issue date
Jul 22, 1980
John H. Hedger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engines, or prime movers
Patent number
3,974,744
Issue date
Aug 17, 1976
John Henry Hedger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS