Fluid handling – Systems – With selective motion for plural valve actuator
Patent
1998-04-22
2000-05-23
Look, Edward K.
Fluid handling
Systems
With selective motion for plural valve actuator
60433, F16D 3102
Patent
active
06065497&
ABSTRACT:
A pneumatic control assembly for controlling a hydraulic power device includes a power control rod and at least one direction control rod. The power control is movable between an engaged position and a disengaged position to activate/de-activate a hydraulic fluid supply source for supply of hydraulic fluid to the hydraulic power device. The direction control rod is movable among a forward position, a neutral position, and a backward position wherein the forward position corresponds to driving the hydraulic power device in an working stroke to work, the backward position corresponds to moving the hydraulic power device in a returning stroke and the neutral position is between the forward position and backward position and corresponding to having the hydraulic power device maintained stationary. A peg is provided on the power control rod. The direction control rod has a projection arranged and dimensioned corresponding to the peg so that when the direction control rod is moved from the neutral position toward the backward position, the peg is drivingly engageable by the projection of the direction control rod in order to drive the power control rod to move with the direction control rod from the engaged position toward the disengaged position.
REFERENCES:
patent: 5305782 (1994-04-01), Kipling et al.
Lazo Thomas E.
Look Edward K.
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