Abstract: This invention describes a triangular heat sink and circuit enclosure for high power dissipation electronic circuits. The heat sink uses a number of cooling fins to provide cooling of the circuitry and equipment contained in the circuit enclosure and can handle power dissipation levels of up to 15 kilowatts. The circuit enclosure uses air moving devices and triangular heat sinks to provide both conduction cooling and heat transfer to a stream of air. The cooling fins of the heat sink are sealed away from the electronic components when the circuit enclosure is assembled.

Abstract: This invention provides a means to maintain the rotational speed and the relationship of the electromagnetic fields of a three phase induction motor and to determine the minimum voltage to excite the motor without it stalling. The three phase induction motor is driven by an inverter bridge circuit which converts DC input power into three phase AC output power. Feedback of the current provided to the inverter bridge circuit is split into positive and negative current flow periods which are used to determine appropriate changes to the three phase AC power magnitudes and phase angles. The inverter bridge circuit uses six insulated gate bipolar transistors to control the three phase AC power magnitude and phase angles.

Abstract: A valve which is eccentrically adjustable, wherein the eccentric mating between a valve and valve seat is defined by a fixed eccentric and an adjustable eccentric. The fixed eccentric is provided by a drive shaft for the valve closure member being fixed eccentrically of a central axis of rotation of the valve closure member. The adjustable eccentric is provided by a rotatable eccentric bearing for receiving the drive shaft.

Abstract: An articulable joint with two opposing disk-like joint portions or plates which are joined by and pivot about a central locking bolt. The joint portions also engage each other via ball and ball seat contact points. Spring pressed balls on one joint portion are biased into ball seats formed in the other joint portion such that the joint may be pivoted incrementally to a number of positions. The spring pressed balls are separately housed in individual ball plungers which in turn are threaded into its respective joint portion such that the ball plungers are selectively adjustable to vary the amount of turning or pivoting force that is required to unseat the balls from their respective seats and move them to respective adjacent seats.

Abstract: A quick-release adapter for connecting the inlet of an exhaust removal hose to the outlet of a tail pipe of a vehicle with an internal combustion engine while minimizing exhaust leakage. The adapter includes three disk-like permanent magnets pivotably mounted on the inlet of exhaust removal hose and three receptacle-shaped magnetic connectors secured to the outlet of the tail pipe for engaging the magnets and mating the exhaust removal hose to the tail pipe. The exhaust removal hose is thus readily connectable to and disconnectable from the tail pipe.

Abstract: An elbow connection for pneumatic conveying systems is provided. The elbow has an inlet opening, an outlet opening and a curved area of short radius extending therebetween. The section of the elbow between the inlet and outlet openings has a cross-sectional area that is substantially greater, at least 1.5:1, than the cross-sectional area of the inlet and outlet openings to reduce the wear of the elbow wall caused by the material conveyed therein.

Abstract: A plate heat exchanger having a plurality of parallel channels for conveying heated gases including entrained pollutants, with transversely directed cooling gases intermediate the polluted gas channels, and an apparatus for periodically cleaning the polluted gas channels, including pipes aligned with their respective channel openings, the pipes having a plurality of jet passages closely spaced therealong, all of the pipes connected to a pressure accumulator having at least a volume greater than ten times the volume of an individual pipe interior, and including controllable valve release mechanisms for sequentially exhausting the pressure tank volume into each of the respective pipes.

Abstract: Apparatus is disclosed for securing a filter bag in hanging suspension through an opening in a baffle plate in a bag housing, including a cover plate having an upwardly extending mouth and a downwardly extending sleeve, a pair of U-shaped clamps constraining the bag against the cover plate, and tensile spring members connected between the U-shaped clamps and over the cover plate.

Abstract: A Venturi apparatus and method used with a cyclone separator to separate particulates, fumes and waste gases from gas, as air. The apparatus has a housing having a generally rectangular chamber through which the gas and particulates flow. The housing has converging side walls forming an elongated rectangular Venturi throat. Plates movably located in the chamber between the side walls are spaced from each other to control the length of the Venturi throat. Controls connected to the plates are operable to move the plates relative to each other to change the length of the Venturi throat. The width of the Venturi throat is determined by the spacing of the side walls and is not changed by movement of the plates.

Abstract: Apparatus is disclosed for insertion into a conveying system line wherein particles are conveyed by a gaseous medium. The apparatus accepts a pressurized gas input and develops therefrom in an internal chamber and annular orifice a gas flow having an internally-directed refluidizing component and a longitudinally-directed conveyor film component.

Abstract: Method and apparatus for treating of waste gases, such as hot-flue gases, to remove therefrom pollutants in the form of solids, such as fly-ash and the like; and also for the removal of chemical substances present in a gaseous form, such as the oxides of sulphur. The solid waste materials, such as fly-ash, are removed from the flue gases by mechanical separation, while the gaseous pollutants, such as sulphur dioxide and/or sulphur trioxide are removed by a scrubbing action with another chemical substance carried in a solution and dispersed by spray action.

Abstract: Apparatus is disclosed for attachment adjacent an open end of a rotary furnace, having a first effluent furnace gas exhaust duct projecting into the furnace and a dust collecting hood adjacent the furnace opening. A pressurized air duct plenum having a plurality of air jet holes directs a curtain of air across the furnace open end, and a receiving air duct plenum having a plurality of openings collects the air curtain for exhausting via a filter system. The hot effluent furnace gas is passed through a gas to gas heat exchanger and to the aforementioned filter system.