A hydraulic piloted pressure reducing and regulating valve which is fail safe for holding the valve at the last selected operating pressure in the event of the loss of control signals.

A friction pump, which is equipped with at least one actively controlled magnetic radial bearing, wherein, in order to satisfy the extreme requirements necessary through the tight tolerances of pump e

In a magnetically driven centrifugal pump so designed that a drive power of an electric motor is transmitted from a magnets-embedded drive rotor to a magnets-embedded follower rotor which is opposed t

A magnetic pump drive comprises a double-walled isolating shell having an inner shell and an outer shell. The inner shell and the outer shell are in contact at least along a cylindrical section of bot

A magnetic pump system includes a ring shaped electric magnet that when pulsed with high voltage and high current, causes a magnetically deflectable elastic member to collapse over a mandrill with an

A magnetically driven gear pump having a housing, a rotatable annular magnetic drive assembly magnetically coupled to but spaced from an annular driven magnet and rotor gear assembly with an annular c

A magnetically-actuated, motorized pump includes a plurality of cylinders extending at radially-spaced intervals between first and second heads. Each cylinder reciprocably receives a piston assembly i

A magnetically suspended piston pump comprises a cylinder made of cylindrical permanent magnet, a piston made of circular permanent magnet, and a circular magnetic plate located at an end of the cylin