Hydraulic loading shovels

Details Hydraulic loading shovels Hydraulic loading shovels

1982-08-13

1985-07-02

Hershkovitz, Abraham

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

91437, 91461, 91520, 91523, 91530, F01B 2502

Patent

active

045260850

ABSTRACT:
The present invention relates to a device for controlling two fluid-controlled drive members, one of which is double-acting, wherein a communication conduit connects the supply conduits of said double-acting drive member, a non-return valve being disposed in said communication conduit and allowing the passage of the fluid solely from the small chamber towards the large chamber of said double-acting drive member, while another conduit is adapted to connect the large chamber of the double-acting drive member to the chamber of the second drive member. The result of the invention is the elimination of lift of a hydraulic loading shovel when digging.

REFERENCES:
patent: 3068596 (1962-12-01), Hein
patent: 3115716 (1963-12-01), Hein
patent: 3543645 (1970-12-01), Baatrup
patent: 3608431 (1971-09-01), Pease
patent: 3777879 (1973-12-01), Dehne
patent: 3916768 (1975-11-01), Martin
patent: 3922855 (1975-12-01), Bridwell
patent: 3966066 (1976-06-01), Schexnayder

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