Valves and valve actuation – Rotary valves – Ball valve
Patent
1983-04-12
1985-06-18
Schwadron, Martin P.
Valves and valve actuation
Rotary valves
Ball valve
251367, 285 21, F16K 2706
Patent
active
045237409
ABSTRACT:
A rotatable unitary ball valve is provided, comprising, in combination:
REFERENCES:
patent: 3051509 (1962-08-01), Wilton et al.
patent: 3228652 (1966-01-01), Antrim
patent: 3394916 (1968-07-01), Birr
patent: 3463451 (1969-08-01), Treadwell
patent: 3970285 (1976-07-01), Lonn
patent: 4072161 (1978-02-01), Schoeneweis et al.
patent: 4175590 (1979-11-01), Grandclement
patent: 4181549 (1980-01-01), McPhee
patent: 4257575 (1981-03-01), Runyan
Hayward Industries
Schwadron Martin P.
Shay James R.
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