John W. Bridwell

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Morton, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Contaminant trap for fluid operated rotary actuator
- Patent number 4,345,509
- Issue date Aug 24, 1982
- Caterpillar Tractor Co.
- John W. Bridwell
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Swing motor mounting arrangement
- Patent number 4,307,991
- Issue date Dec 29, 1981
- Caterpillar Tractor Co.
- John W. Bridwell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Shaft locking apparatus
- Patent number 4,147,442
- Issue date Apr 3, 1979
- Caterpillar Tractor Co.
- John W. Bridwell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic system for extremely cold environments
- Patent number 4,059,042
- Issue date Nov 22, 1977
- Caterpillar Tractor Co.
- John W. Bridwell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic circuitry for an excavator
- Patent number 4,030,623
- Issue date Jun 21, 1977
- Caterpillar Tractor Co.
- John W. Bridwell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Automatically engaged emergency parking brake
- Patent number 3,985,210
- Issue date Oct 12, 1976
- Caterpillar Tractor Co.
- Norman J. Hodge
- B60 - VEHICLES IN GENERAL