Valves and valve actuation – Permanent or constantly energized magnet actuator
Patent
1991-11-25
1993-05-25
Walton, George L.
Valves and valve actuation
Permanent or constantly energized magnet actuator
335306, F16K 3108
Patent
active
052133079
ABSTRACT:
A gastight manually-operated valve comprising a cylindrical valve body including a first orifice and a second orifice, and containing a piston valve-member that is prevented from rotating but that is free to move axially between a closed position closing said first orifice and an open position providing free communication between said first orifice and said second orifice, wherein said body is provided with a control ring surrounding the outside of the valve body, prevented from moving axially, and free to move in rotation, both said control ring and said piston valve member being fitted with at least one pair of axially polarized permanent magnets, with the two magnets in each pair being polarized in opposite directions to each other and extending respectively on two diametrically opposite generator lines of the body or valve member part carrying them.
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Alcatel Cit
Walton George L.
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