Abstract: A centrifugal separator for separating contaminants from contaminated fluids comprising shroud means defining a first chamber, bearing means within the shroud means, a hollow rotor rotatably carried by the bearing means, said hollow rotor defining a second chamber for receiving contaminated fluid directly from an inlet passage passing through said bearing means, and connecting an inlet port at the upper end of the shroud means with the upper end of said second chamber, means to rotate said rotor and thereby cause contaminants in the contaminated fluid within said second chamber to migrate towards a side wall of said second chamber under the influence of centrifugal force and to be separated from such contaminated fluid, said means to rotate said rotor comprising outlet reaction port means in said rotor in fluid communication with said second chamber to cause said rotor to rotate upon discharge of fluid from said second chamber to said first chamber and outlet port means for discharging fluid from the bottom o

Abstract: A disposable, centrifugal separator of the kind shown, for example, in U.S. Pat. No. 4,106,689 is modified and simplified in that the rotor is made of sheet metal from which bearings are pressed out. These bearings are journaled on fixed stub axles at respective ends of the outer casing, the stub axles also preferably being of pressed out sheet metal.

Abstract: A centrifugal separator for removing a dispersed solid from a liquid phase by the combined action of a cyclone and a centrifuge, the centrifuge being mounted co-axially on the cyclone.

Abstract: A control apparatus is disclosed for regulating the movement of a control stem which is biased in a given direction. The apparatus comprises a housing forming a chamber and a plurality of passages. The chamber receives the control stem in its direction of bias, the latter abutting against a restraining sphere disposed in the chamber. A pair of pistons are movably disposed in remaining ones of the passages to maintain the sphere in the chamber. The pistons are movable to allow the sphere to enter a passage so that the stem can move further into the chamber. The pistons can be moved manually or automatically, as by means of a fusible element which melts in response to the heat of a fire.