Fluid handling – Control by change of position or inertia of system – With second control
Patent
1974-05-07
1976-06-22
Cohen, Irwin C.
Fluid handling
Control by change of position or inertia of system
With second control
91390, 91419, 91453, 91461, 137 38, 13762561, 182 2, 182 19, B66F 1104, F15B 13042, F16K 1100
Patent
active
039645045
ABSTRACT:
A hydraulic valving mechanism for controlling an object in a normally level position such that upon a shifting of the same from level an actuating mechanism is driven to return the object to the desired level, such valving mechanism including a valve housing with control ports therein with a gravity responsive member therein to open and close selected ones of the ports depending upon the direction the same is shifted from level with the ports being interconnected to a main control valve for shifting of the same to direct fluid to the proper side of the actuating mechanism to return the object to its normal, level position.
REFERENCES:
patent: 2218194 (1940-10-01), Freeman
patent: 2961001 (1960-11-01), Pippenger
patent: 3397915 (1968-08-01), Small et al.
patent: 3415021 (1968-12-01), Myers
patent: 3437010 (1969-04-01), Jacobi et al.
patent: 3477472 (1969-11-01), Mercier
patent: 3590948 (1971-07-01), Milner
patent: 3756262 (1973-09-01), Morrow et al.
patent: 3768374 (1973-10-01), Ito et al.
Cohen Irwin C.
Cwayna James R.
Integrated Power, Incorporated
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