Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7909274 | Device to reduce clogging of gutters A device for reducing clogging of a gutter comprises a housing which fits in a gutter over the downspout. The device contains a motor-driven grinder mechanism which grinds up waterborne leaves and other debris passing through the housing, preferably as they exit thr... | 03/22/2011 |
| 7883038 | Device to reduce clogging of gutters A device for reducing clogging of a gutter comprises a housing which fits in a gutter over the downspout. The device contains a motor-driven grinder mechanism which grinds up waterborne leaves and other debris passing through the housing, preferably as they exit thr... | 02/08/2011 |
| 7841550 | Cutter nut and cutter bar assembly A cutting assembly for positioning at the intake end of a centrifugal pump used for pumping liquids and slurries containing solid matter, including various types of refuse, and for chopping the solid matter which may thereafter be processed for disposal is disclosed... | 11/30/2010 |
| 7823817 | Desktop electric stirrer A tabletop electric stirrer includes a rotating body and an electric rotating drive. This stirrer can perform stirring efficiently, can easily crush and dissolve a water soluble capsule not only in hot water but also in cold water, and can crush a plurality of capsu... | 11/02/2010 |
| 7802741 | Pump assemblies having a quick-release latching mechanism and methods for securing pump assemblies in a tank A pump assembly supportable in a tank having an opening includes a pump such as a grinder pump and a cover attachable to the pump. The cover has a peripherally-extending portion extending outwardly from the pump and the peripherally-extending portion is sized to res... | 09/28/2010 |
| 7731113 | Crushing and grinding device, a soybean milk maker including said device and a method for making soybean milk The present application discloses a recirculating crushing and grinding device for crushing and grinding liquid-like materials or materials that contain liquid, said device comprises a motor, a hopper, a crushing and grinding part and a material recirculating part. ... | 06/08/2010 |
| 7354009 | Sewage pump A sewage pump includes a motor, a main shaft, an upper impeller, a lower impeller, a grinding wheel, a top cap, an upper bearing base with an upper mounting plate, an upper bearing base, a tube body with a wire inlet connector, a lower bearing base, a lower bearing ... | 04/08/2008 |
| 7347615 | Mixer with smoothed mixing action A mixer (1) is described, in particular a feed mixer, has a mixing chamber (3), which is provided with a discharge opening (6) for the mix. A mixing screw (7), driven about a vertical rotating axis (7a), is accommodated in the mixi... | 03/25/2008 |
| 7337996 | Food waste disposer grinding mechanism A grinding mechanism for a food waste disposer includes a grinding ring defining a plurality of window openings therethrough. A backing member receives the grinding ring and defines a plurality of cavities therein corresponding to the window openings. A plurality of... | 03/04/2008 |
| 7252036 | Rotor blades for food processing machines A rotor for food pulping or straining machines is equipped with a plurality of blades (2) designed to act on the food product to force at least part of it out through a sieve (3) that surrounds the rotor (1) and is characterised in that the blad... | 08/07/2007 |
| 7237736 | Grinder pump with self aligning cutter assembly A grinder pump with a self aligning cutter assembly, the grinder pump having an inlet port, a drive shaft and a cutter assembly, the cutter assembly comprising a rotary cutter and a stationary, annular cutter. The rotary cutter is supported for rotation by the drive... | 07/03/2007 |
| 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 |
| 6916152 | Centrifugal sewage pumps with two impellers A centrifugal sewage pump with two impellers includes a motor, a first impeller housing, a second impeller housing and a transfer tube. The first impeller housing is attached on one end of the motor and the second impeller housing is attached to the other end of the... | 07/12/2005 |
| 6890092 | Adjustable wheel system for a vertical mixer A vertical mixer has a set of wheels on each side of the mixer that is automatically adjustable for variation in the terrain where the mixer is used. Each set is rotatable about a pivot point. Preferably, weight bars provide the pivot point for each set of wheels. T... | 05/10/2005 |
| 6817752 | Auger device for a vertical mixer An auger device of a vertical mixer is disclosed for mixing animal feed. The auger device includes a core having a first and a second end and flighting which is secured to the core so that in operation of the mixer, when the auger device rotates, the animal feed is ... | 11/16/2004 |
| 6685116 | Crushing apparatus, crushing method, disassembling method, and valuables recovering method A crushing apparatus is provided for crushing a printed circuit board on which electronic components are mounted into pieces of a size ranging from a few to ten centimeters square and separating some of the components and sheathed wires from the printed c... | 02/03/2004 |
| 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 |
| 6343752 | Indoor wastewater disposal system and tank therefor A self-contained, indoor wastewater disposal system for collecting, grinding, and pumping wastewater is readily installed within a building such as in the basement thereof by connecting to a wastewater feed pipe, to a wastewater discharge pipe, and to an ... | 02/05/2002 |
| 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 |
| 5639031 | Sharps disposal system A sharps disposal apparatus is provided for reducing contaminated medical sharps into unrecognizable, ordinary waste. The disposal apparatus comprises a disposal unit including a disposer, disposable waste receptacle, and sterilant recycling system. Durin... | 06/17/1997 |
| 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 |
| 5544821 | Energy efficient centrifugal grinder A grinder of solids or solids in liquids has a multiple milling stages. A rotating disc plate carries cutting elements on one side and hammer elements on another, both located at the circumference of the disc plate. The disc plate is rotated in a screened... | 08/13/1996 |
| 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 |
| 5370323 | Waste disposer A waste disposer comprises a shredder section for shredding waste material and a water remover section coupled integrally with the shredder section for removing water from the waste material, in which the shredded waste material is carried upward througho... | 12/06/1994 |
| 5361998 | Plant for treating drill cuttings The present invention relates to a plant for treating waste materials, which plant performs a safe and permanent depositing of waste materials as they are treated to obtain an injectable mass which may be injected in porous, underground formations. The pl... | 11/08/1994 |
| 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 |
| 5335866 | Waste disposer A waste disposer comprises a shredder section for shredding waste material and a water remover section coupled integrally with the shredder section for removing water from the waste material, in which the waste material is shredded with the shredder secti... | 08/09/1994 |
| 5320285 | Grinding mixer The grinder is generally composed of a cantilever having one end supported by a stand and the other end of which being connected with a spindle, perpendicularly. A grinding means is secured to the bottom end of the spindle adopted to grind and to mix arti... | 06/14/1994 |
| 5271571 | Water driven device for agitating and fragmenting debris in a sink drain A perforated cylindrical receptacle is fitted within the main cylinder of an ordinary sink drain. A conical elevation of the bottom of the receptacle provides at the apex, a bearing point for a propeller, which may spin by the flow of draining fluid to fr... | 12/21/1993 |
| 5156344 | Dispenser apparatus A mixing machine for dispersing finely divided solid particles in a liquid vehicle including an agitator shaft, a rotor stator assembly, a plurality of stator support rods, variable flow restrictor means being associated with the stator portion and a seco... | 10/20/1992 |
| 5129590 | Garbage disposer There is disclosed a garbage disposer which pulverizes kitchen garbage, drys it and discharges only the yield water into a sewage system. This apparatus includes a garbage pulverizing segment and a garbage drying segment, both of which are driven by a com... | 07/14/1992 |
| 5016825 | Grinding impeller assembly for a grinder pump A grinding assembly (10) for a grinder pump (13) has disk member (11) rotatable within an opposing annular ring (12). The inner circumferential surface (34) of the annular ring (12) carries a plurality of cutting teeth (41, 42), which partially extend at ... | 05/21/1991 |
| 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 |
| 4902412 | Swimming pool water recirculation system There is disclosed a water recirculation system for a swimming pool including assemblies installed in the drain openings in the skimmer and lower end of the pool for shredding leaves solely in response to the circulation of water through them.... | 02/20/1990 |
| 4824032 | Method and an arrangement for mixing a dry material with a liquid The invention relates to a method and an arrangement for mixing a dry or substantially dry powder material (2) with a liquid to form a slurry (4), while using a vessel (7) which contains the liquid and which is provided with agitating means (5), and in wh... | 04/25/1989 |
| 4735366 | Annular gap-type mill An annular gap-type mill for continuously pulverizing in particular hard mineral substances comprises a grinding container (15) which accommodates an axially symmetrical inner body (13) whose outer surface defines with the inner surface of the grinding co... | 04/05/1988 |
| 4725006 | Apparatus for conveying sewage Apparatus for conveying sewage or waste water by means of a rotatable displacement pump positioned within a housing. A cutting device is positioned at a water inlet for cutting solid materials that are part of the waste water to reduce their size in order... | 02/16/1988 |
| 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 |
| 4637555 | Circulation type homogenizing apparatus A circulation type homogenizing apparatus for treating raw material liquids, which utilizes a main cylindrical barrel with a subsidiary barrel centrally located therein and a pair of mating grinding disks arranged to provide a homogenizing action for the ... | 01/20/1987 |
| 4634059 | Method and device for emptying suspension from a pulper In a pulping apparatus including a pulper with a rotor near the bottom therein, the pulper having a sluice outlet at the bottom for acceptable pulp suspension. Above the rotor at a corner of the pulper is a second outlet for suspension and dirt. A conduit... | 01/06/1987 |
