Valves and valve actuation – Rotary valves – Ball valve
Patent
1992-11-17
1993-08-17
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
251356, F16K 506
Patent
active
052361764
ABSTRACT:
A ball valve includes a hollow ball provided with beehive-shaped reinforcing portion in the hollow ball for enhancing a strength of the hollow ball durable of compression, impact or any external force acting upon the ball for increasing a diameter of the ball but decreasing its weight, thereby being beneficial for making ball valves with larger sizes.
REFERENCES:
patent: 3323537 (1967-06-01), Shafer
patent: 3580268 (1971-05-01), Shafer
patent: 3841601 (1974-10-01), Grove et al.
patent: 3926407 (1975-12-01), Forster et al.
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