Seal assembly for valves

Details Seal assembly for valves Seal assembly for valves

1976-08-06

1979-02-27

Cline, William R.

Valves and valve actuation

Rotary valves

Ball valve

251367, F16K 506

Patent

active

041415388

ABSTRACT:
This is a unitary all-plastic ball valve particularly for use with natural gas distribution lines which are plastic and buried in the earth, where the parts are designed to assure accurate assembly in order to provide a unitary sealed valve body impervious to most elements encountered, inside or outside the valve.

REFERENCES:
patent: 2861773 (1958-11-01), Clade
patent: 3208718 (1965-09-01), White
patent: 3228652 (1966-01-01), Antrim
patent: 3367624 (1968-02-01), Scaramucci
patent: 3390861 (1968-07-01), Masheder
patent: 3550902 (1970-12-01), Pidgeon et al.
patent: 3617025 (1971-11-01), Gerbic et al.
patent: 3626978 (1971-12-01), Hoekstra
patent: 3656711 (1972-04-01), Toelke
patent: 3844531 (1974-10-01), Grengs
patent: 3902600 (1975-09-01), Turner et al.

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