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| Number | Title | Issue Date |
| 6382963 | Grate cooler A grate cooler of simple construction whose cooling grate is substantly protected against wear and which can be operated in simple fashion and with a high cooling efficiency. A plurality of rotatably supported tubular oscillating shafts, spaced apart from... | 05/07/2002 |
| 6343557 | Combustion furnace with grate and rod feeder A combustion furnace for solid fuel, including combustable fuel, wherein the furnace is arranged with a grate (11) with openings (12) which are situated for supply of air or another gas mixture for combustion. A first and second rod feeder (1, 2) is provi... | 02/05/2002 |
| 5628259 | Economizer lump breaker A lump breaker apparatus mounted to an airlock of an economizer ash hopper for breaking up ash clinkers accumulated on a grating disposed in the airlock to maintain the passage of ash through the grating of the airlock. The apparatus comprising a pneumati... | 05/13/1997 |
| 5567150 | Method for making sintered abrasive grain A method for making sintered abrasive grain. The sintered abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.... | 10/22/1996 |
| 5489204 | Apparatus for sintering abrasive grain An apparatus useful for sintering unsintered abrasive grain precursor to provide sintered abrasive grain. The sintered abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwov... | 02/06/1996 |
| 5447630 | Materials treatment process and apparatus A waste treatment system in which incoming waste is initially separated by a separator into solid and liquid components, without significantly emulsifying the solid components. The separator requires no energy to provide a solid waste component having a v... | 09/05/1995 |
| 5388535 | Waste material flow control features in a material processing apparatus A material processing apparatus includes a casing having a pyrolysis chamber for receiving and pyrolyzing feed materials therein into a gaseous material and solid ash residue, a mass of refractory material contained in the casing upon a bottom thereof, be... | 02/14/1995 |
| 4662290 | Automatic coal stoker An automatic coal stoker is disclosed having at the base of its hopper an enclosed reciprocating pusher assembly rectangular box shaped which delivers compressingly a defined but variable quantity of coal into a restricted passageway. Successive quantitie... | 05/05/1987 |
| 4604019 | System for removing solids from a solids upflow vessel An apparatus for removing solids from a solids upflow vessel, preferably an upflow retort, which includes a horizontally reciprocatable carriage containing a vertical feed cylinder that extends downward from a horizontal seal plate. A vertically reciproca... | 08/05/1986 |
| 4534301 | Incinerator ash removal systems An incinerator is disclosed which includes apparatus for removing ash from an incinerating chamber and which comprises hydraulically operated plows that slide along the floor of the chamber to push the ash towards an ash trough. Ash removal efficiency is ... | 08/13/1985 |
| 4474117 | Boiler using a solid granulated fuel The invention relates to boilers using solid fuels in granular form. It comprises: (a) automatic feeding of the firebox with fuel by a reciprocating piston system forming a fire barrier in the rest position and actuated by a low power linear movement motor, an... | 10/02/1984 |
| 4450952 | Fire grate for a combustion furnace A fire grate for a combustion furnace having a pair of parallel spaced apart frame walls and a plurality of alternately arranged stationary and movable grate bars extending between and secured to the frame walls. The grate bars are formed of a plurality o... | 05/29/1984 |
| 4432287 | Incinerator and hearth construction therefor An incinerator including a housing defining a combustion chamber, a hearth mounted in the chamber, the hearth having a plurality of vertical openings, air passageways in the hearth each communicating with at least one of the vertical openings, a burner mo... | 02/21/1984 |
| 4337857 | Stepped grate-type cooler for hot particles A stepped grate-type cooler of the type employing a plurality of spaced grate plate carriers, alternate carriers being stationary and the carriers positioned between the stationary carriers being reciprocable relative thereto. Each of the grate plate carr... | 07/06/1982 |
| 4329931 | Burning system and method A substantially smokeless burning system for burning waste material fuels. An elongated hollow burning chamber is supported in a generally horizontal orientation with a slight degree of upward tilt from front to rear. An elongated fuel accumulation chambe... | 05/18/1982 |
