Valve shifting mechanism

Details Valve shifting mechanism Valve shifting mechanism

1975-10-16

1977-02-15

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

74 55, 137609, 1376361, 251257, 251297, F16K 31524

Patent

active

040077578

ABSTRACT:
An easily assembled valve shifting mechanism includes a hexagonal shaft over which several different cam plates are slidably assembled in a predetermined manner. Each cam plate includes complementary cam surfaces for engaging and providing positive motion to a cam follower mounted on a valve spool. The cam surfaces of all the cam plates bear a predetermined relationship to each other to cause movement of the different valve spools in a predetermined sequence. One of the cam plates further includes detent means for defining each of the steps in the predetermined sequence.

REFERENCES:
patent: 928874 (1909-07-01), Morgan
patent: 3161137 (1964-12-01), Thoma et al.
patent: 3192952 (1965-07-01), Botnick
patent: 3894719 (1975-07-01), Horvath

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