Ralph R. Day

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Aurora, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Differential with variable torque means
- Patent number 4,474,080
- Issue date Oct 2, 1984
- Caterpillar Tractor Co.
- Ralph R. Day
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-purging fuel supply system for internal combustion engines
- Patent number 4,157,082
- Issue date Jun 5, 1979
- Caterpillar Tractor Co.
- Ralph R. Day
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Bucket positioner kickout slave cylinder
- Patent number 3,978,769
- Issue date Sep 7, 1976
- Caterpillar Tractor Co.
- Ralph R. Day
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL