Spherical ball drive mechanism for a direct drive valve

Details Spherical ball drive mechanism for a direct drive valve Spherical ball drive mechanism for a direct drive valve

1985-01-28

1986-03-04

Rosenthal, Arnold

Fluid handling

Non-valving motion of the valve or valve seat

Rotary motion of a reciprocating valve

25112911, 251 58, 251229, 251251, 74 22R, 74 49, F16K 3152

Patent

active

045734941

ABSTRACT:
Spherical ball drive mechanism for directly coupling a rotary force motor to a valve member, includes a spherical bearing assembly at one end of the valve member. The spherical bearing assembly consists of an outer race member having a concave spherical inner bearing surface and a spherical bearing member having a convex spherical outer bearing surface complementary to the concave spherical inner bearing surface of the outer race member and received therein. The outer race member has a longitudinal axis substantially perpendicular to the longitudinal axis of the valve member and a transverse center axis radially offset from the longitudinal axis of the valve member. An eccentric output shaft of the rotary force motor extends substantially perpendicular to the longitudinal axis of the valve member for receipt in a longitudinal bore in the spherical bearing member.

REFERENCES:
patent: 2833508 (1958-05-01), Bydalek et al.
patent: 2970770 (1961-02-01), Bowman et al.
patent: 4436163 (1984-03-01), Simpson

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