Valve structure of hydraulic buffer

Details Valve structure of hydraulic buffer Valve structure of hydraulic buffer

1986-12-15

1988-01-26

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1374938, 137854, 137857, 18832214, 18832215, F16K 1514

Patent

active

047211300

ABSTRACT:
A valve structure according to the present invention is used for a hydraulic buffer provided with a member for partitioning the interior of a cylinder into two liquid chambers and having a plurality of ports for affording communication between both liquid chambers. The valve structure includes a valve body formed annularly of a leaf spring for opening and closing the ports and secured to the member on an inner peripheral portion thereof, a spring for biasing the valve body toward the member and a spring seat disposed movably between the spring and the valve body and having an abutting portion projecting toward the valve body at a side contacting the valve body. The valve body can flex about an outer peripheral edge of the abutting portion and an outer peripheral edge of the fixed portion.

REFERENCES:
patent: 1967418 (1934-07-01), McPhail
patent: 2717058 (1955-09-01), Brundrett
patent: 3621951 (1971-11-01), Schmid
patent: 3827539 (1974-08-01), Fader
patent: 4113072 (1978-09-01), Palmer

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