John J. Campbell

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Decatur, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for auxiliary front wheel drive
- Patent number 4,142,600
- Issue date Mar 6, 1979
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Planet gear positioning and retaining mechanism
- Patent number 4,104,933
- Issue date Aug 8, 1978
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Floating carrier retention for a planetary gearset
- Patent number 4,092,878
- Issue date Jun 6, 1978
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Auxiliary hydrostatic front wheel drive system
- Patent number 4,069,886
- Issue date Jan 24, 1978
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Mounting arrangement for a hydraulic motor
- Patent number 3,960,061
- Issue date Jun 1, 1976
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL