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| Number | Title | Issue Date |
| 7743717 | Apparatus for conveying solid waste to a furnace An apparatus for conveying solid waste to a furnace includes an opening to an elongated channel into which waste material is received and an outlet open to the furnace. A reciprocating ram with a head plate located in the channel opposite the outlet forces the waste... | 06/29/2010 |
| 6647901 | 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... | 11/18/2003 |
| 6371711 | Valveless continuous atmospherically isolated container feeding assembly An apparatus for feeding containers of feed material into a process chamber is disclosed. The apparatus is designed to maintain the atmosphere within the process chamber as separate from the atmosphere surrounding the process chamber. The apparatus has a ... | 04/16/2002 |
| 6067915 | Feeding systems for a continuous pyrolysis and gasification process and apparatus A method of charging a pyrolytic gas-producing reactor with waste fuel wherein the waste fuel is forced into the reactor by a ram and wherein air is prevented from entering the reactor and pyrolysis gases are prevented from escaping from the reactor by me... | 05/30/2000 |
| 6024032 | Production of heat energy from solid carbonaceous fuels A process for the production of heat energy from solid carbonaceous fuels is disclosed which comprises subjecting the carbonaceous fuel to substantially anaerobic pyrolysis in at least one first zone and thereafter transferring the char resulting from the... | 02/15/2000 |
| 5724896 | Method and apparatus for providing supplemental fuel to a rotary kiln A method and apparatus for feeding a cement kiln through the kiln wall includes a processing component which shreds and blends supplemental fuel and conveys the fuel to a feeding station. The feeding station includes a feeding device, such as a ram or scr... | 03/10/1998 |
| 5720232 | Method and apparatus for recovering constituents from discarded tires Discarded rubber tires for reclamation and recovery of the constituents therein and/or environmentally safe disposal are transferred from a pan feeder system into a hopper and transferred by an auger into a pyrolysis chamber. The pan feeder system exclude... | 02/24/1998 |
| 5549058 | Method and apparatus for charging a bulk material supplemental fuel into a long cement kiln A method and apparatus for feeding a bulk material supplemental fuel through a port formed in a side wall of a rotary vessel of a cement kiln. The apparatus includes a stationary annular plenum surrounding rotary vessel. The plenum is configured to define... | 08/27/1996 |
| 5454333 | M/A for feeding hazardous waste fuels with high solids content into a cement kiln A method and apparatus for continuously feeding hazardous waste fuels having a relatively high solids content to a rotary cement kiln by delivering the fuel to a feed hopper with screw-conveyor which transfers the fuel to a filling zone where a piston pum... | 10/03/1995 |
| 5341962 | Swing arm feeder A feeder for discharging a load of material includes a hopper, a swing arm pivoting between raised and lowered positions in the hopper, and a ram mounted on the free end of the swing arm. The ram is moved by the swing arm back and forth on a curved floor ... | 08/30/1994 |
| 5197684 | Device for tearing-up and stoking straw A device for tearing-up and stoking straw into a burner unit. A reciprocating slide is provided under a magazine shaft for straw bales, the slide having mutually staggered teeth on its upper side in a forward part of the slide and elongated fins extending... | 03/30/1993 |
| 5095825 | Method and apparatus for feeding fuel into a pressurized space A method and apparatus for feeding solid material into a pressurized combustion or gasification plant in stages. The feed apparatus (10) is provided with an inlet (18), sluice chamber (30), and outlet (20). In a loading stage, solid material is conveyed t... | 03/17/1992 |
| 5018455 | Feed system for pellet burning stove An improved fuel feed system for a solid particulate fueled stove includes a hopper which supplies fuel to an elevated fuel plate. A pusher block forces fuel pellets from the fuel plate through a drop area and into a trough. The drop area is of sufficient... | 05/28/1991 |
| 5009171 | Feed device with filling hopper and adjoining feed chute for feeding waste to incineration plants A feed device comprises a filling hopper, a feed chute and a plurality of feeding pistons arranged adjacent to one another on a feed table, each feeding piston carrying at least one retaining and compression body in the area of its front end. The retainin... | 04/23/1991 |
| 4954034 | Vibratory fuel feeder for furnaces A vibratory feeder in combination with a fuel fired furnace such as a coal fired steam generating boiler is disclosed. The vibratory feeder has a tray with a flat bottom in one embodiment and a step bottom in another and a hopper having vertical sides sup... | 09/04/1990 |
| 4951580 | Waste feed arrangement An improved waste feed arrangement for feeding waste into a rotary combustor including a stepped support frame and a ram which pushes the waste through a doorway into the rotary combustor, the ram slidably engaging an upper step of the support frame and h... | 08/28/1990 |
| 4940376 | Scrap loader for molten metal furnace A scrap loader for a molten metal furnace. A loader housing, to be positioned beside a molten metal furance, includes a chamber having an inlet portion for receiving metal scrap and an outlet port through which the metal scrap is to be fed into the furnac... | 07/10/1990 |
| 4803973 | Grate for coal stove An improved coal stove grate including a floor and side walls to either side of the floor. Coal is pushed along the floor, up a rise surface, past a crest at the end of the rise surface and along a fire support section to the end of the grate. Part of the... | 02/14/1989 |
| 4762073 | Metering feeder A metering feeder for delivering solid fuels, such as municipal or industrial refuse, for combustion includes a pair of generally vertically arranged hoppers. An upper hopper containing relatively compacted or intertangled fuel discharges metered amounts ... | 08/09/1988 |
| 4718360 | Metering Feeder A metering feeder for delivering solid fuels, such as municipal or industrial refuse, for combustion includes a pair of generally vertically arranged hoppers. An upper hopper containing relatively compacted or intertangled fuel discharges metered amounts ... | 01/12/1988 |
| 4714031 | Combustor feeding arrangement An arrangement for feeding material to the open end of a combustor including a vertical chute leading to a doorway to the combustor which is normally closed by a biased door, and a stepped ram reciprocating at the bottom of the chute for feeding material ... | 12/22/1987 |
| 4665840 | Mechanical stoker An improvement for use in a mechanical stoker with a coal stove is disclosed. The improvement device is used with a stoker, generally including a hopper, operatively connected to a small stove having a fire box forming an ash pit. The fire box, through it... | 05/19/1987 |
| 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 |
| 4637327 | Stoking plant for fuel in whole bales A stoking plant for fuel in whole bales, where the bales are conveyed on a transport tract (8) from a store and stoked in the whole condition into one of a number of combustion furnaces (2) with boilers (1), comprises a slide-gate (10) through which a bal... | 01/20/1987 |
| 4616573 | Metering feeder A metering feeder for delivering solid fuels, such as municipal or industrial refuse, for combustion includes a pair of generally vertically arranged hoppers. An upper hopper containing relatively compacted or intertangled fuel discharges metered amounts ... | 10/14/1986 |
| 4602572 | Metering feeder A metering feeder for delivering solid fuels, such as municipal or industrial refuse, for combustion includes a pair of generally vertically arranged hoppers. An upper hopper containing relatively compacted or intertangled fuel discharges metered amounts ... | 07/29/1986 |
| 4537140 | Automatic coal stove stoker An improvement for use in a coal stoker is disclosed. The improvement device is used with a common stoker generally including a hopper operatively connected to and aligned with a base box forming an ash pit. The base box, through its sides sloping downwar... | 08/27/1985 |
| 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 |
| 4471704 | Reciprocating grate systems for furnaces and incinerators A new and improved reciprocating grate system for furnaces and incinerators wherein the system is advantageously constructed to accomplish a variety of objectives. Adjacent flights of adjacent portions of the composite grate structure reciprocate back and... | 09/18/1984 |
| 4429645 | 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. An elongated fuel accumulation chamber and a hydraulic hoist driven ram in the chamber are a... | 02/07/1984 |
| 4281603 | Means for feeding solid combustible waste material to a furnace A furnace for burning solid waste material such as straw bales or wood shavings is fed automatically from a reservoir container through a pipe that leads into the bottom of the furnaces combustion chamber. The automatic feed may comprise a pusher sliding ... | 08/04/1981 |
| 4217175 | Apparatus for solid waste pyrolysis This disclosure is directed to an economical system for the pyrolysis of municipal solid waste to recover valuable by-products while reducing the putrecibility and bulk of the residue requiring disposal. Prior to this treatment, the solid waste has been p... | 08/12/1980 |
| 4185567 | Wood-fired furnace assembly with automatic fire chamber charger A ram is connected to reciprocate its free end up to or into a reinforced aperture in the bottom of one side wall of a wood receiving container to break wood positioned therebetween and push it through the aperture into a feed duct that is connected at it... | 01/29/1980 |
| 4181082 | Solid fuel furnace An elongate combustion chamber is inclined at a 50° to 80° angle to the vertical, is connected at the lower end face to a feed duct through which fuel is pushed into the chamber and is open at the upper end face. The side walls forming the lower part of... | 01/01/1980 |
| 4133259 | Refuse pelletizer Apparatus capable of producing pellets of compacted refuse having a density of at least 20 lbs./ft.3 comprising: (1) a cylindrical tube having a compacted chamber whose length is shorter than the shortest "critical length" for the refuse to be pelle... | 01/09/1979 |
| 4074638 | Apparatus for agitating and removing non-combustible material from an incinerator An apparatus for agitating and removing ash and non-combustible materials from an incinerator. Waste material is thermally decomposed in a primary combustion chamber of the incinerator resulting in the generation of combustible waste gases which are fully... | 02/21/1978 |
| 4036124 | Sludge press A sludge press wherein a piston is reciprocable along a horizontal path between a retracted position in the interior of a hopper and an extended position in which the piston is located in and at the front end of a barrel extending forwardly from and commu... | 07/19/1977 |
| 4029026 | Incinerator An improved, pollution-free incinerator eliminating the need for a conventional, independently-fired after-burner, having a loading chamber in which slow combustion commences, hydraulic means to move waste materials through said loading chamber to a two-s... | 06/14/1977 |
| 3938451 | Gasifier charging system A refuse feeder and charging system is provided for a solid waste destruction system wherein a high temperature disposal of waste materials occurs. In such a destruction system, waste materials must be fed or charged to the upper end of a vertical gasific... | 02/17/1976 |
