Hydraulic shock absorber

Details Hydraulic shock absorber Hydraulic shock absorber

1982-09-27

1984-06-12

Stoner, Jr., Bruce H.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188319, 188314, F16F 910

Patent

active

044536380

ABSTRACT:
A hydraulic shock absorber comprising a piston and hollow piston rod slidable within a cylinder, and a plug assembly including a spool valve for metering fluid into the piston rod when an impact force forces the piston into the cylinder. A coil spring normally biases the valve spool to block fluid passage. An adjustment rod is threaded into the plug assembly to form a seat for the valve spring, and extends through the hollow piston rod. The adjustment rod may be rotated from externally of the piston rod for varying spring bias on the valve spool. A closed cell sponge is disposed within the plug-remote end of the piston rod.

REFERENCES:
patent: 2005813 (1935-06-01), Thorsen
patent: 2352197 (1944-06-01), Harvey

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