Roy E. Bartholomew

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Elyria, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Air dryer purge control for turbocharged compressors
- Patent number 4,714,483
- Issue date Dec 22, 1987
- Allied Corporation
- James P. Koening
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Dual circuit brake valve
- Patent number 4,691,968
- Issue date Sep 8, 1987
- Allied Corporation
- James G. Pugh
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Proportioning brake valve with dual area secondary piston
- Patent number 4,660,894
- Issue date Apr 28, 1987
- Allied Corporation
- Roy E. Bartholomew
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Three way check valve
- Patent number 4,605,262
- Issue date Aug 12, 1986
- Allied Corporation
- Roy E. Bartholomew
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electro-pneumatic control for a vehicle fluid pressure braking system
- Patent number 4,550,953
- Issue date Nov 5, 1985
- Allied Corporation
- Roy E. Bartholomew
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Brake proportioning system
- Patent number 4,368,926
- Issue date Jan 18, 1983
- The Bendix Corporation
- Roy E. Bartholomew
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Fluid pressure braking system including a pressure differential res...
- Patent number 3,953,079
- Issue date Apr 27, 1976
- The Bendix Corporation
- Milan J. Sebo
- B60 - VEHICLES IN GENERAL