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US 4,023,364 AGranted
Swing flow supplemental travel for an excavator
AssigneeCaterpillar Tractor Co.
InventorDonald L. Bianchetta
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a drive and swing control system for an excavator wherein the swing pump may selectively direct fluid to the drive motors of the vehicle when the swing motor of the vehicle is not in use.
Claims7
An actuating system for a vehicle comprising:
- vehicle fluid drive motor means;
- an additional fluid motor;
- fluid pump means;
- means operatively connecting the fluid pump means and fluid drive motor means for selectively providing communication between the fluid pump means and fluid drive motor means, and for selectively blocking communication between the fluid pump means and fluid drive motor means, to selectively place the fluid drive motor means in a driving or a non-driving state;
- an additional fluid pump;
- means operatively connecting the additional fluid pump and additional fluid motor for selectively providing communication between the additional fluid pump and additional fluid motor, and for selectively blocking communication between the additional fluid pump and additional fluid motor, to selectively place the additional fluid motor in a driving or a non-driving state;
- and
- means for providing that, only with communication between the additional fluid pump and additional fluid motor being blocked by the means operatively connecting the additional fluid pump and additional fluid motor, fluid from the additional fluid pump may be selectively directed to the drive motor means.
5 more elements
Dependencies are inferred from the claim text.