Abstract: A centrifugal pump for circulating fluids at high pressure comprises an impeller having an axis of rotation, a casing defining a pumping chamber, a nonmagnetic canister sealed at one end and extending away from the pumping chamber surrounding an extension of the impeller axis, and an impeller shaft journaled in the nonmagnetic canister. The shaft has mounted thereto circumferentially magnetized rare earth cobalt magnets. A drive magnet assembly comprising a sleeve is journaled about the nonmagnetic canister with circumferentially magnetized rare earth cobalt magnets mounted therein. Rotation of the sleeve results in synchronous rotation of the impeller and impeller shaft.

Abstract: A high temperature and high pressure consistometer comprises a cylindrical pressure vessel having an integral bottom and a cover for said pressure vessel. A nonmagnetic canister extends downwardly from said bottom and is sealed therein. A driven magnet assembly is journaled in said canister. A drive shaft is connected to said driven magnet assembly extending into said vessel. A nonmagnetic canister extends upwardly from the cover and is sealed therein. A driving magnet assembly is journaled in said canister. A shaft connected to said driving magnet assembly extends downwardly into said vessel. A driven magnet assembly is mounted for rotation on the exterior of the downwardly extending canister and a driven magnet assembly is mounted for rotation on the exterior of the upwardly extending canister. A sample cup is connected to the upwardly extending drive shaft and a paddle is connected to the downwardly extending shaft.

Abstract: A high pressure gas/oil separator comprising a pressure vessel with a magnetically driven hollow shaft extending thereinto. The shaft has a slinger at its lower end within the vessel. The upper end of the shaft is in communication with a source of the gas/oil mixture. The vessel has a purified gas outlet above the slinger. Gas/oil mixture is thrown by centrifugal force against walls of the vessel and the oil coalesces on the walls and drains to the bottom of the vessel. The purified gas escapes from the vessel through the outlet port.

Abstract: A handle for a magnetically actuated valve which bears rotating and fixed indicia for reading the valve position. The rotating indicia is placed upon a jacket carrying drive magnets. The fixed indicia is placed upon a cap covering the exposed end of a nonmagnetic bonnet separating the drive and driven magnet assemblies. External stop means prevent rotation of the jacket relative to the cap and bonnet more than about 90.degree.. Internal stop means prevent the rotation of valve and driven magnets more than about 90.degree..

Abstract: This invention relates to a rising stem valve that is magnetically actuated. A driven magnet assembly is rotatably supported in a nonmagnetic pressurizable bonnet fixed to the main valve body. The driven magnet assembly preferably comprises rare earth cobalt magnets defining an even number of north and south poles. A cylindrical holder coaxial with and surrounding said tubular bonnet is rotatably secured thereto. The holder carries driving magnets, preferably rare earth cobalt magnets with an even number of north and south poles. Rotation of the holder results in rotation of the driven magnet assembly. A valve stem is connected to the driven magnet assembly in a manner such that turning of the driven magnet assembly raises and lowers the stem which in turn opens and closes the valve.

Abstract: A packless magnetically actuated valve. A driven magnet assembly is rotatably mounted inside a nonmagnetic bonnet. A drive magnet holder surrounds the bonnet and rotates thereon. The driven magnet assembly turns a stopper positioned in the main valve body between inlet and outlet passages. The bonnet is mounted for rotation and means extend between the bonnet and the driven magnet assembly such that sufficient rotation of the bonnet will cause rotation of the stopper.

Abstract: A laboratory pressure vessel having a cover plug suspended on a platform and extending therebelow. A vessel body is arranged to be moved into sliding engagement with the cover plug below the platform. Grooves in the walls of the cover plug and vessel body together define a toroidal space and a flexible element is arranged to be inserted into said toroidal space to secure the cover plug and body together.

Abstract: This invention relates to a shifting stem metering valve that is magnetically actuated. A driven magnet assembly is rotatably supported in a nonmagnetic pressurizable bonnet fixed to the main valve body. The driven magnet assembly preferably comprises rare earth cobalt magnets defining an even number of north and south poles. A cylindrical holder coaxial with and surrounding said tubular bonnet is rotatably secured thereto. The holder carries driving magnets, preferably rare earth cobalt magnets with an even number of north and south poles. Rotation of the holder results in rotation of the driven magnet assembly. A stepping motor or the like controls the rotation of the driven magnet assembly. A valve stem is connected to the driven magnet assembly in a manner such that turning of the driven magnet assembly shifts the stem which in turn adjusts the valve opening.

Abstract: A packless magnetically actuated stopper valve. A driven magnet assembly is rotatably mounted inside a nonmagnetic bonnet. A drive magnetic holder surrounds the bonnet and rotates thereon. The driven magnet assembly turns a stopper positioned in the main valve body between inlet and outlet passages. Floating valve seats associated with each passage sealably engage the stopper.

Abstract: This invention relates to a rising stem valve that is magnetically actuated. A driven magnet assembly is rotatably supported in a nonmagnetic pressurizable bonnet fixed to the main valve body. The driven magnet assembly preferably comprises rare earth cobalt magnets defining an even number of north and south poles. A cylindrical holder coaxial with and surrounding said tubular bonnet is rotatably secured thereto. The holder carries driving magnets, preferably rare earth cobalt magnets with an even number of north and south poles. Rotation of the holder results in rotation of the driven magnet assembly. A valve stem is connected to the driven magnet assembly in a manner such that turning of the driven magnet assembly raises and lowers the stem which in turn opens and closes the valve.

Abstract: A high pressure magnetic drive for autoclaves and the like having a novel structure including magnetic thrust bearings. The magnetic drive comprises a tubular nonmagnetic housing securable at an open end to an opening in a pressurizable vessel. A sheave or sleeve coaxial with the housing is mounted rotatably thereto. A driven shaft is journaled in the housing. Circumferentially magnetized rare earth cobalt magnets are mounted in the sheave. The driven shaft has circumferentially magnetized rare earth cobalt magnets secured thereto. The magnets on the sheave and circumferentially magnetized magnets on the driven shaft enable the magnetic transfer of torque. At least one annular rare earth cobalt magnet being axially polarized is secured to the driven shaft. The nonmagnetic tubular housing has at least one annular rare earth cobalt magnet being axially polarized associated therewith to cooperate with the axially polarized magnet on the driven shaft to maintain the axial position of the shaft.