Linkage assembly for a coupler

Details Linkage assembly for a coupler Linkage assembly for a coupler

1978-12-06

1980-11-18

Staab, Lawrence J.

Valves and valve actuation

With correlated flow path

Flow path joint interlocked with valve or actuator

74105, 74106, 13761406, 251279, F16L 2900, F16L 3728

Patent

active

042341612

ABSTRACT:
A linkage assembly for linearly moving a valve of a coupler between its open and closed positions has a yoke pivotally connected to a first link which is fixed to a rotary shaft so that the yoke rotates about the axis of the rotary shaft during a predetermined angular rotation of the rotary shaft. The yoke and a second link, which is pivotally connected to the valve, are in bearing engagement during the predetermined angular rotation. During a portion of the predetermined angular rotation, the center of the bearing surface of the second link is maintained in alignment with the axis of rotation of the shaft by a pin on the second link riding in an arcuate channel fixed to the shaft for rotation therewith.

REFERENCES:
patent: 3664634 (1972-05-01), Guertin et al.
patent: 3884448 (1975-05-01), Millar et al.
patent: 3897091 (1975-07-01), McMath et al.
patent: 4030524 (1977-06-01), McMath et al.

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