Valves and valve actuation – Electrically actuated valve – Freely rotatable ball valve
Patent
1988-03-21
1989-07-11
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Freely rotatable ball valve
25112921, F16K 3106
Patent
active
048464392
ABSTRACT:
An electromagnetic valve assembly comprises a movable valve member, a valve seat, an electromagnet for attracting the movable valve member toward the valve seat, and a non-magnetic intermediate member interposed between the movable valve member and the valve seat. The non-magnetic intermediate member magnetically isolates the movable valve member from the valve seat so that the movable valve member is free from the residual magnetism of the valve seat to prevetn valve sticking.
REFERENCES:
patent: 3307129 (1967-02-01), Mangiafico
patent: 3861644 (1975-01-01), Knape
Aisin Seiki Kabushiki Kaisha
Rosenthal Arnold
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