Stopcock formed of sheet metal

Details Stopcock formed of sheet metal Stopcock formed of sheet metal

1977-05-23

1979-12-25

Cline, William R.

Valves and valve actuation

Rotary valves

Plug

251315, 251367, 291571R, 29412, F16K 506

Patent

active

041802446

ABSTRACT:
A stopcock with the exception of its shaft, journal and bearings, is constructed of a plurality of sheet metal parts welded together to form a housing and a plug rotatably mounted in the housing. The housing is made up of a tubular member with ring disks welded to its opposite ends. The plug is made up of ball-shaped half shells and annular disk cores welded to the half shells. A tubular plate is welded into the half shell and forms the flow passage through the stopcock.

REFERENCES:
patent: 3367359 (1968-02-01), Johnson
patent: 3425663 (1969-02-01), Priese
patent: 3463449 (1969-08-01), Nelson et al.
patent: 3501128 (1970-03-01), Pool
patent: 3518742 (1970-07-01), Merrill et al.
patent: 3678556 (1972-07-01), Shafer
patent: 3712584 (1973-01-01), Wise et al.
patent: 3737145 (1973-06-01), Heller et al.
patent: 3841601 (1974-10-01), Grove et al.
patent: 3987529 (1976-10-01), Nakagawa et al.
patent: 4038734 (1977-08-01), Goldman

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