Direct drive valve-ball drive mechanism

Details Direct drive valve-ball drive mechanism Direct drive valve-ball drive mechanism

1986-02-19

1987-06-16

Focarino, Margaret A.

Fluid handling

Non-valving motion of the valve or valve seat

Rotary motion of a reciprocating valve

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

Patent

active

046729925

ABSTRACT:
Ball drive mechanism includes a ball-like member on an eccentric output shaft of a rotary force motor which is received in a transversely extending cylindrical socket on a valve member. The outer diameter of the ball-like member is substantially the same as the inner diameter of the cylindrical socket to provide line contact therebetween at some distance radially offset from the longitudinal axis of the valve member which is at least as great as the eccentric offset, whereby the rotary output of the rotary force motor is translated into both linear and rotary movement of the valve member.

REFERENCES:
patent: 544727 (1895-08-01), Gilcher
patent: 1736974 (1929-11-01), King
patent: 2833508 (1958-05-01), Bydalek et al.
patent: 3259076 (1966-07-01), Halberg et al.
patent: 3550631 (1970-12-01), Vanderlaan et al.
patent: 3774632 (1973-11-01), Mrugala
patent: 4176687 (1979-12-01), Ensign
patent: 4436163 (1984-03-01), Simpson
patent: 4573494 (1986-03-01), Spurbeck

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