Means for rotating ball valves between open and closed positions

Details Means for rotating ball valves between open and closed positions Means for rotating ball valves between open and closed positions

1991-11-04

1992-07-07

Fox, John C.

Valves and valve actuation

Rotary valves

Ball valve

251304, F16K 506

Patent

active

051276283

ABSTRACT:
A ball valve (10) has a stem (28) to rotate a ball member (20) with a lower key or lug (29) received within a slot or opening (26) forming a keyway in the ball member (20). As shown particularly in FIGS. 2 and 3, relieved or cutaway surfaces (52, 54, 56) are provided between lug (29) and the outer spherical surface (24) of ball member (20) so that a torque exerted by rotation of the stem (28) contacts surfaces (34, 36) of the slot (26) along opposed corners (48) which are spaced a distance T1 from the outer spherical surface (24) of ball valve member (20) thereby removing or minimizing any stress concentrations adjacent outer spherical surface (24).

REFERENCES:
patent: 3006602 (1961-10-01), Usob
patent: 3598363 (1971-08-01), Shaw

Affiliated with

Also associated with

Rating

Means for rotating ball valves between open and closed positions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Means for rotating ball valves between open and closed positions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Means for rotating ball valves between open and closed positions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1825266