Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7448331 | Starved air inclined hearth combustor An inclined hearth combustor which generally includes a primary combustion chamber having a plurality of stepped hearths, a secondary combustion chamber in communication with the primary combustion chamber and a boiler having an inlet in communication with the secon... | 11/11/2008 |
| 7424856 | Grate element for a grate of a waste combustion installation The present invention relates to a grate element (1) for a grate of a waste-incineration plant, having a plurality of rows of grate blocks, which are moveable or fixed, arranged one behind the other, a plurality of grate blocks (67) being arranged in e... | 09/16/2008 |
| 7284491 | Grate structure for solid fuel burners In one aspect, a grate segment for a burner, comprises a substantially rigid body (30) having a dispersed array of cavities (38) filled with a refractory material. In another aspect, a solid fuel gasifier includes a housing (12) defining a gasif... | 10/23/2007 |
| 7219610 | Grate plate arrangement for step plates A grate plate arrangement for step grates includes box-like grate plates (4) positioned on a grate carrier (2) with a front plate (24) placed on its end wall (18) and fastened to the end wall (18) using one or more studs (26... | 05/22/2007 |
| 7117803 | Apparatus for the pyrolysis of material Apparatus (2) for the pyrolysis of material, which apparatus (2) comprises a pyrolysis chamber (4), an inlet (6) at a first end (8) of the pyrolysis chamber (4), an outlet (10) at a second end (12) of the pyrol... | 10/10/2006 |
| 6145453 | Method for controlling the firing rate of combustion installations In order to carry out the method for controlling the firing rate of the combustion installation, the fire grate is equipped with a plurality of undergrate zones. In order to determine the control signal, the undergrate zone at the beginning of the main co... | 11/14/2000 |
| 5913274 | Incineration grate with internal cooling A grate for a firing plant, having at least one grate track with a plurality of fixed and moving rows of grate-lining units, which rows alternate in the longitudinal direction, are bounded on both sides by side walls and are provided with cooling passages... | 06/22/1999 |
| 5895213 | Clinker cooler A clinker cooler (3) comprises a plurality of grates (5) arranged in adjacent and overlapping relation to each other for conveying hot cement clinker (11) supplied from a kiln (1). The grate (5) is formed with an air hole (20) through which air from a fan... | 04/20/1999 |
| 5771819 | Incinerating furnace A hearth particle bed incineration furnace is provided in which the hearth particles form a sloped layer bed which moves in the incinerating furnace without being fluidized. The furnace is structured so that the combustion gas is prevented from flowing up... | 06/30/1998 |
| 5766001 | Grate element for a grate surface, e.g. in a clinker cooler A grate element (1) for a grate surface, e.g. in a clinker cooler, is shaped in the form of a box between the walls (3, 4) of which a number of grate surface-defining grate slats (5, 6) are mutually arranged so that, between them, they form fine gas slots... | 06/16/1998 |
| 5724898 | Grate for a firing system The grate for a firing system has at least one rate conveyor having a plurality of fixed bar rows and moving bar rows alternating in the longitudinal direction, which are limited on both sides by side walls and which are composed of water-cooled grate pla... | 03/10/1998 |
| 5680824 | Process for burning solids with a sliding firebar system A process for burning solids on a sliding fire grate system where each of the combustion control criteria are measured and controlled individually for each grate plate comprising the grate system.... | 10/28/1997 |
| 5626089 | Grate plate for pusher grate coolers for the cooling of hot material The service life of grate plates for pusher grate coolers for the cooling of hot cement clinker, and the like, is greatly increased at low cost by providing a replaceable wearing part (21) at the forward plate end pushing edge of the grate plate body (12)... | 05/06/1997 |
| 5588829 | Thrust grating cooler and method for cooling hot material In order to create a thrust grating cooler whose system for delivering the cooling air to the individually aerated, reciprocally movable grating plate carriers manages without flexible cooling air hose conduits that are susceptible to wear, at least one c... | 12/31/1996 |
| 5584686 | Flexible air supply connection in a grate cooler A flexible connection for supplying cooling air to a movable grate element in a grate cooler. A rigid pipe has two end sections each having a wall thickness exceeding that of the pipe. The end sections are rounded on their outer sides and are each mounted... | 12/17/1996 |
| 5575642 | Grate plate A grate plate for use in cooling heated material has a plurality of spaced apart walls including a front wall, side walls, a top wall and a bottom wall. A plenum is located generally within the walls for receiving a cooling fluid within the grate plate. T... | 11/19/1996 |
| 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 |
| 5433157 | Grate plate for thrust grating coolers for cooling hot material In order to create a grate plate design for a thrust grating cooler for cooling hot material such as, for example, cement clinker, this grate plate design has troughs at its upper side for accepting and retaining cool material for the purpose of protectin... | 07/18/1995 |
| 5323717 | Refuse feed assembly for incinerators An assembly for feeding refuse from a charging chute of an incinerator onto a stoker disposed in the incinerator comprising a stationary support means disposed adjacent the stoker, stationary guide means mounted on the support means in alignment with the ... | 06/28/1994 |
| 5299555 | Frame element for forming a grate A frame element (8) for forming a grate, including two spaced-apart side members (12,14) and several plate members (6) arranged one next to the other between the side members in longitudinal direction thereof, between which plate members is provided a gas... | 04/05/1994 |
| 5282741 | Grate plate The present invention pertains to a grate plate utilized in a cooling apparatus. Substantially the entire surface area of the exposed surface is defined by alternating rows of a plurality of (1) substantially rectangular hollow air distribution plenums th... | 02/01/1994 |
| 5271339 | Combustion apparatus for a refuse incinerator A combustion apparatus for a refuse incinerator has a plurality of rows of grates arranged in parallel in the directions of breadth and in series in the longitudinal directions of a combustion zone and a post-combustion zone of the combustion apparatus. T... | 12/21/1993 |
| 5265543 | Extended life grate bar An improved, long-life grate bar for use in the traveling grate bar mechanism of a solid-fuel-burning furnace apparatus and having hard wear pad inserts which are disposed within the end portions of the grate bar which ride along support rails. The wear p... | 11/30/1993 |
| 5197397 | Grate structure for a horizontal type incinerator A grate structure for a horizontal type incinerator has a plurality of rows of grates arranged in parallel in perpendicular X and Y directions of the incinerator. Each X-direction row has a series of immovable grates and a series of movable grates alterna... | 03/30/1993 |
| 5195449 | Dry distillation type incinerator A distillation type incinerator generates gas containing much combustible gas owing to restricted air introduction at feeding the combustible matters thereto and minimum necessary supply of air for combustion and dry distillation, and generates residue wh... | 03/23/1993 |
| 5174747 | Grate plate The present invention pertains to a grate plate utilized in a cooling apparatus. Substantially the entire surface area of the exposed surface, that is, the surface of the grate plate that is not overlapped by a preceding grate plate, is recessed from its ... | 12/29/1992 |
| 5069146 | Grate for a fuel boiler A grate for a fuel boiler, consisting of plates arranged stepwise or in a cascading fashion, with at least two fixed plates and a movable plate disposed between the two fixed plates. The movable plate is capable of reciprocating to and fro and is provided... | 12/03/1991 |
| 5033396 | Grill arrangement, particularly for stepped pivoting grills The invention relates to a grill arrangement, particularly for stepped pivoting grills, with feeding means, possibly drying and firing grills and at least one vertical grill with associated horizontal grill as well as a firing burnout grill and is disting... | 07/23/1991 |
| 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 |
| 4955296 | Incinerator grate assembly A stationary, stepped, downwardly inclined incinerator grate assembly includes independent combustion control at each step through the provision of laterally disposed, perforated support tubes each joined to an inclined grate plate, likewise having openin... | 09/11/1990 |
| 4913067 | Stoker construction A stoker comprising a housing defining first, second and third plenum chambers, a grate unit disposed at an upper end of each plenum chamber, a first residue removal means disposed at a lower end of the first plenum chamber, a second residue removal means... | 04/03/1990 |
| 4901653 | Hearth for a furnace, notably a furnace for urban waste, including a grate made up of alternately fixed and reciprocating bars, with increased flexiblity of adjustment The grate comprises, within its length, two consecutive beds (41, 42) with substantially the same general slope joined together at a point in substantial vertical alignment with the altar wall (7), each bed having its own mobile frame (45d, 46d) with its ... | 02/20/1990 |
| 4884516 | Inclined grate apparatus for use in the combustion chamber of a combustion furnace An inclined grate construction or apparatus in the combustion chamber of a combustion furnace, comprising a plurality of adjacent grate tubes in the longitudinal direction of the grate, said tubes being welded together through flat bars. Below the grate i... | 12/05/1989 |
| 4870913 | Grate cooler for cooling hot bulk material Grate plate carriers are formed box-shaped having a planar cover plate that, extending in the product conveying direction, joins to the following cover plate and is provided with openings that are covered at a slight distance therefrom by the grate plate ... | 10/03/1989 |
| 4771710 | Element of stepwise grid for wastes incinerator furnaces with improved air circulation and air-tightness Element of stepwise grid for waste incinerator furnaces of the type forming, together with other similar grid elements, a course or step of a grid borne on a support beam comprising a rear articulated joint and a front thrust portion, provided with a swin... | 09/20/1988 |
| 4732561 | Apparatus for cooling hot material In apparatus for cooling hot material, a material transfer stage is provided in the material inlet of a cooler and acted on by cooling air. The transfer stage has a plurality of air-permeable carrier elements spanning the breadth of the inlet. At least on... | 03/22/1988 |
| 4676176 | Furnace grate This invention relates to a grate for burning solid combustibles and, more particularly, refuse in a fired furnace. The grate comprises a plurality of steps, each step including a plurality of adjacent grate bars with alternate steps of grate bars being m... | 06/30/1987 |
| 4563959 | Step type stoker with oscillation mechanism The present invention relates to a step type stoker with an oscillation mechanism having: a plurality of stoker frames (2 and 2') which are installed at an interval in the upstream to downstream direction, and at least one of which forms an air supply pat... | 01/14/1986 |
| 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 |
