Butterfly valve apparatus

Details Butterfly valve apparatus Butterfly valve apparatus

1975-08-06

1977-02-15

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Plural dissimilar mechanical movements

74 8915, 251305, 251308, F16K 3144

Patent

active

040079104

ABSTRACT:
A butterfly valve apparatus comprising a rotating shaft, a valve stem movable by the rotating shaft through a coupling member and a valve plate fixed within a valve housing to the valve stem.

REFERENCES:
patent: 1672430 (1928-06-01), Schnyder
patent: 2974921 (1961-03-01), Kaswan
patent: 3245655 (1966-04-01), Oetjens
patent: 3376015 (1968-04-01), Forsman et al.
patent: 3452766 (1969-07-01), Fenster
patent: 3575378 (1971-04-01), Fawkes
patent: 3608861 (1971-09-01), Helman et al.
patent: 3640140 (1972-02-01), Gulick et al.
patent: 3642247 (1972-02-01), Scaramucci
patent: 3647179 (1972-03-01), Scaramucci et al.
patent: 3656711 (1972-04-01), Toelke
patent: 3877677 (1975-04-01), Daghe et al.

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