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 |
| 7455251 | Pump impeller and chopper plate for a centrifugal pump A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or “hubless” arrangement such that processing of solids through the pump does not result in clogging of solids at or ne... | 11/25/2008 |
| 7114932 | Valve-free oxygen concentrator featuring reversible compressors A pivoting vane rotary compressor includes a housing having a generally pear-shaped chamber. A rotor mounted within the chamber defines a main and constricted chamber regions. Reversible intake and exhaust ports alternately introduce air into and exhaust air from th... | 10/03/2006 |
| 7080797 | Pump impeller and chopper plate for a centrifugal pump A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or “hubless” arrangement such that processing of solids through the pump does not result in clogging of solids at or ne... | 07/25/2006 |
| 7048213 | Methods of operating a food waste disposer having a variable speed motor The present invention provides a food waste disposer having an upper food conveying section, a motor section, a central grinding section and a controller. The upper food conveying section includes a housing forming an inlet to receive food waste. The motor section i... | 05/23/2006 |
| 6969018 | Sanitary shredder A sanitary shredder includes at least a channel feeding water into a caisson (1), an electric motor whereof the axis has at its end a rotor pump (5) with blades (6), and shredding elements opposite the shredding chamber (3) provided with ... | 11/29/2005 |
| 6439487 | Grinding mechanism for a food waste disposer and method of making the grinding mechanism A grinding mechanism or assembly for a food waste disposer, the grinding mechanism being enclosed in a housing of the food waste disposer. The grinding mechanism includes a shredder plate assembly and a stationary shredder ring. The shredder plate assembl... | 08/27/2002 |
| 6024310 | Sandwich design crushing/shredding machine The present invention is directed to a sandwich design crushing/shredding machine. The machine comprises a stationary grid and a rotatable set of blades on a shaft. The stationary grid is adapted for connection into a flow line, has a first flange and a s... | 02/15/2000 |
| 6019498 | Apparatus and process for continuously mixing liquid with powder Apparatus and process for continuously mixing liquid with powder, where the process uses an apparatus having a feed port for the introduction of liquid and powder on the top of a casing, a discharge outlet at the bottom of the casing, a rotating disk with... | 02/01/2000 |
| 5599102 | Device for continuously mixing liquid and powder with a second stage liquid feed line and notched scraper A device for continuously mixing liquid and powder is able to provide lower apparent viscosities for liquid-powder mixtures. The device allows introduction of a fresh supply of liquid in a second stage mixing chamber where a rotating disk further creates ... | 02/04/1997 |
| 5593099 | Apparatus for producing solid fertilizer from liquid substances such as manure from liverstock or sludge A method for producing solid fertilizer from liquid manure or from sludge includes mixing the same with harvest leftovers. The liquid substance (manure, sludge) is intimately mixed with the harvest leftovers during grinding. The solids are ground to a par... | 01/14/1997 |
| 5586729 | Fuels blending system and method of using A system for producing a suitable fuel from waste material including a dispersion tank in which is located a rotary dispersion and agitation system comprising external vanes, rotary and stationary plates having opposing faces fitted with intermeshing shea... | 12/24/1996 |
| 5431348 | Ultracentrifugal disintegrator and its use for the cryocomminution of heat sensitive material The ultracentrifugal disintegrator includes a device for cooling the annular zone (7), extending from the outer face (8) of the rotor (4) to the inner face (9) of the sieve (5), by feeding a gaseous coolant to the upper part of the zone (7), vertically wi... | 07/11/1995 |
| 5346143 | Fish mincer pump A fish mincer pump which includes a conventional chopper plate and cutter knife associated with the inlet of a centrifugal pump and a novel and unique mincer plate and a cutter knife or cutter knives associated with the mincer plate in the inlet of the pu... | 09/13/1994 |
| 5169075 | Crushing device An in-line crushing system is provided which is capable of reducing and crushing both wet and dry material pieces passing therethrough to free-flowing sizes, that utilizes an internal stationary cutter array in conjunction with coaxially aligned rotatable... | 12/08/1992 |
| 4911368 | Grinder pump Disclosed is a grinder pump having a grinder disk fixedly provided around a suction port formed in a pump casing and a grinder impeller fixed by a clamping nut on a front end of a pump impeller shaft so as to rotate together with the pump impeller along t... | 03/27/1990 |
| 4697746 | Grinder pump A release type grinder pump is disclosed which is capable of readily permitting the fitting and removal of a grinder ring with respect to a pump casing. The grinder pump includes an annular suction cover in which the grinder ring is fittedly held and whic... | 10/06/1987 |
| 4691867 | Method and apparatus for continuously mixing and kneading pulverulent bodies such as pulverized coal, oil coke to prepare slurry thereof A method of continuously mixing and kneading pulverulent bodies such as pulverized coal, oil coke to prepare a slurry thereof. Pulverulent bodies supplied continuously at a fixed rate from a supply tube are spattered and dispersed by a rotary mixing disk ... | 09/08/1987 |
| 4637928 | Method and apparatus for neutralizing reactive material such as batteries A method and apparatus for treating articles such as batteries in a manner permitting safe disposal thereof, each of the articles comprising a casing having reactive material therein, wherein the article casing is opened to allow access to the interior th... | 01/20/1987 |
| 4454993 | Grinder pump An improved grinder pump of the water immersed type is disclosed which includes a motor driven semi-open type pump impeller, a grinder ring fitted and firmly mounted in the suction port at the bottom of the pump casing, the grinder ring being provided wit... | 06/19/1984 |
| 4434943 | Pump intake cutter head The present invention relates to improvements in the pumping of a slurry of aquatic growths being removed from lakes, rivers, canals and other waterways wherein final comminuting of the growth takes place directly adjacent the inlet impeller of the pump t... | 03/06/1984 |
| 4288254 | Predispersed slurry of titanium dioxide A process is disclosed for preparing a slurry of titanium dioxide having a solids content of at least 60%. In the past titanium dioxide pigment slurries have been prepared by mixing titanium dioxide powder, water and additives in a batch mixer, however, t... | 09/08/1981 |
| 4222528 | Mill A mill comprising a case with a longitudinal flow passage; an annular milling ring with a plurality of circumferentially spaced radially inwardly projecting teeth fixed in the flow passage; a substantially disc-shaped rotor arranged centrally within the r... | 09/16/1980 |
| 4134555 | Waste disposer An improved waste disposer having shredding means in a comminution chamber and a rotor rotatable within the chamber. Freely rotating impellers are provided on the rotor which rotate as the rotor is rotated. Each impeller includes at least one main cutting... | 01/16/1979 |
| 4120457 | Pulverizer A device for pulverizing waste food and other similar materials employing a pivotally mounted hammer on a horizontally rotating plate which operates in relation to a fixed cylindrical surface of variable height lands and grooves, and thereafter, the food ... | 10/17/1978 |
| 4074868 | Food processing system A system for pulverizing waste food and converting it into dried animal feed in which the waste food is first passed through a cylindrical chopper comprising a pivotally mounted hammer on a rotating plate which operates in relationship to a fixed cylindri... | 02/21/1978 |
