Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7437105 | Developing device and image forming apparatus A developing device includes a developer bearing body that partially faces the inside of a developer storing chamber, a first developer carrying member disposed in the chamber together with the body, and a second developer carrying member disposed in the chamber tog... | 10/14/2008 |
| 7347613 | Apparatus for continuous blending The present invention provides a continuous blender having a drive unit assembly with a shell assembly mounting assembly and a shell assembly structured to be removably coupled to the shell assembly mounting assembly by one or more clamps. The drive unit assembly ma... | 03/25/2008 |
| 7320539 | Concrete batching facility and method A concrete batch mixing system and method are disclosed that enable the batch master to measure and control both the water and cementitious ingredient feeds in relation to each other so as to be able to blend the two ingredients in a known, selected, adjustable and ... | 01/22/2008 |
| 7305206 | Xerographic developer unit having variable pitch auger A developer system, including: a developer housing having a sump containing developer material including toner particles; a developer member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a develop... | 12/04/2007 |
| 7131765 | Helical-ribbon mixer A helical-ribbon mixer having a rotation-symmetrical inner mixing vessel wall (2), a motor-driven central agitator axis (3) therein, on which, on lateral agitator arms (5), at least one helical ribbon (4) is held close to the vessel wall ... | 11/07/2006 |
| 7040801 | Mixing apparatus with non-concentric auger A mixing apparatus is disclosed for mixing and discharging livestock feed. The mixer includes a container for the reception of feed, with a floor, and a wall extending away from the floor such that substantially all of the wall is disposed above the floor. The wall ... | 05/09/2006 |
| 7014640 | Bone graft delivery device and method of use A dispensing device for granule bone graft of varying and/or irregular shape is characterized by a body defining a handle/hopper portion, a dispensing portion, and a feed system. The subject device permits reloading or refilling of bone graft at the time of use of t... | 03/21/2006 |
| 6983902 | Zootechnical use shredding and mixing apparatus for a truck A truck for shredding and mixing products for zootechnical use, of the type that comprises, on a chassis (11) with wheels (12) that is self-propelled or towed, a container (13) that is substantially shaped like an inverted frustum, is open in an... | 01/10/2006 |
| 6969191 | Linkage mechanism for a vertical mixer A vertical mixer has a mixing chamber with a vertical auger rotatably mounted herein. The mixing chamber has a side wall and a floor. The side wall has an opening therein that is closable by a door. The door is constructed to be opened and closed by hydraulic cylind... | 11/29/2005 |
| 6921191 | Injection/extruder screw The present invention concerns a screw for moving plastic through a barrel in a direction of flow from a drive to a tip. The screw has a shaft having opposing first and second ends, a drive located on the first end of the shaft, a tip located on the second end of th... | 07/26/2005 |
| 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 |
| 6811295 | Batch mixer and a mixing rotor for the same Each mixing rotor for a batch mixer is rotatably insertable into a mixing chamber such that tip clearances are defined between tips of mixing blades and an inner surface of a mixing chamber and is provided on its outer circumferential surface with a plurality of mix... | 11/02/2004 |
| 6609819 | Twin screw extruder with conical non-parallel converging screws An improved twin screw extruder device (14) is provided which is capable of producing a wide variety of high quality extrudates having greatly varying final properties, without the need for extensive machine modifications. The extruder (14) includes a bar... | 08/26/2003 |
| 6382826 | Compact extruder with multiple parallel screws having a variable pitch arrangement A compact extruder with multiple parallel screws having a variable pitch arrangement, includes an outer casing which has at least two chambers that contain at least two screws which allow material to flow from one chamber to the other chamber through a pa... | 05/07/2002 |
| 6331069 | Concrete extrusion machine and spiral conveyor therefor A spiral conveyor for a concrete extrusion machine has a first spiral conveyor section with a first external diameter. There is a second spiral conveyor section having a second external diameter which is greater than the first diameter. The second section... | 12/18/2001 |
| 6136246 | Screw extruder with improved dispersive mixing elements A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw fli... | 10/24/2000 |
| 6080346 | Extrusion apparatus and method and extruded thermoplastic polymer Polyvinyl alcohol is processed into fiber or pellets for further processing, or directly into water-soluble film, in a screw-and-barrel extruder, which has a slow temperature rise and a mild kneading action achieved by a non-stick coating applied to the s... | 06/27/2000 |
| 6076954 | Continuous vacuum processor with integral raw material mixing A cast polymer integral mixing and vacuum processor system and method for delivering substantially void-free viscous polymer employs a motor connected to a mixing screw. A tube surrounds the mixing screw with one end of the tube being fixedly connected re... | 06/20/2000 |
| 6007272 | Asphalt paver with remixing conveyor system An improved asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parall... | 12/28/1999 |
| 5965173 | Plasticating apparatus and screw therefor Plasticating apparatus includes a barrel having an inlet for the introduction of resinous material and an outlet for the discharge of plasticated molten extrudate, along with a screw rotatably mounted within the barrel and in communication with the inlet ... | 10/12/1999 |
| 5932159 | Screw extruder with improved dispersive mixing A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw fligh... | 08/03/1999 |
| 5863122 | Vertical feed mixer with auger having corners A vertical feed mixer has a mixing chamber containing a rotatable auger having a generally helical flight that is tapered to converge from bottom to top. The flight has a periphery with several successive substantially straight sections where each straigh... | 01/26/1999 |
| 5855432 | Method and apparatus for eliminating gel contained in polymer A method of eliminating gel contained in polymer, by efficiently plasticizing and melting the polymer supplied into a barrel with the stress in a rotor reduced, and next kneading the polymer with a rise in temperature of the polymer suppressed and a resid... | 01/05/1999 |
| 5840345 | Dough transport device The present invention provides a dough transport device having an improved dough pump, an improved manifold for dividing dough, and a rotational cutter for cutting dough into pieces of uniform shape and size. The auger dough pump operates using a auger wh... | 11/24/1998 |
| 5842090 | Developing device having a member for restricting transport of developer A developer mixing and transporting member is provided which has at least two independent spiral-shaped channels extending around the circumference of the member. At least one of the channels is partly blocked by an element which restricts developer trans... | 11/24/1998 |
| 5833361 | Apparatus for the production of small spherical granules A mixer for delaminating, deagglomerating, mixing, and extruding a mixture of powder and liquid, which contains a mixing chamber, a variable speed rotating shaft disposed within the chamber, a multiplicity of stators extending from the interior wall of th... | 11/10/1998 |
| 5823675 | Stepped helical scraper blade for ice cream maker This invention discloses a mixing tool for an ice cream maker. The mixing tool is substantially helix-shaped and is disposed within the freezing chamber of an ice cream maker. The mixing tool serves a three-fold purpose. First, the mixing tool scrapes fro... | 10/20/1998 |
| 5753498 | Garbage treating apparatus An agitating unit is provided in an upright fermenting reactor for purposes of carrying garbage from a lower portion toward an upper portion of the fermenting reactor. The horizontal distance between the agitator unit, or a spiral blade thereof, and an in... | 05/19/1998 |
| 5662415 | Conveyor for degassing of mixtures for solid surface products and method of use An improved conveyer apparatus for processing and degassing a mixture of materials for forming solid surface end products, such as cultured marble and other polymer casting products. The conveyer includes a conveyer housing with an internal passageway hav... | 09/02/1997 |
| 5657115 | Rotary developing device for an image forming apparatus In an image forming apparatus, a rotary developing device has a developing unit in which a plurality of developing chambers are arranged around an axis of rotation. The developing unit is rotated about the axis to bring one of the chambers to a developing... | 08/12/1997 |
| 5601362 | Vertical feed mixer with feed deflectors An improved vertical feed mixer has a mixing chamber defined by a floor, a sidewall, and an open upper end through which feed material, such as hay bales, is loaded into the chamber. A vertically disposed auger with tapered flighting is rotatably mounted ... | 02/11/1997 |
| 5570953 | Mud-mixing machine for drywall texturing and other applications A method of forming a mixture of powdered material and water includes the step of providing a hopper, a holding tank, a tube intermediate the hopper and the holding tank, and an air-powered auger arranged to feed powdered material from the hopper through ... | 11/05/1996 |
| 5540900 | Reactors and apparatus for the physico-chemical treatments of substances in the solid, liquid or gaseous state An apparatus for the physiochemical treatment and reaction of material which includes a pair of conveying screws which convey the material from an inlet to an outlet and wherein the portion of the material is recycled through spaced openings between the s... | 07/30/1996 |
| 5505537 | Conical-bottom silo, particularly suitable for small-sized plastic material and rubber with high elasticity properties, having a discontinuous screw stirrer A conical-bottom silo, particularly suitable for small-sized pieces of plastic material with properties of high elasticity, includes a conical screw stirrer inserted axially in the conical bottom of the silo. The conical screw of the stirrer is discontinu... | 04/09/1996 |
| 5462354 | Livestock feed mixer A livestock feed mixer includes a power source having a rotational power take-off. A mixer housing forms a mixing chamber for holding the feed ingredients and a rotatable mixing member is mounted within the mixing chamber. A variable speed power transfer ... | 10/31/1995 |
| 5421650 | Mixing machinery of the transfermix type An apparatus for extruding material is provided which includes a barrel and a screw. The barrel has an axis and an internal operating surface, the internal operating surface defining a barrel interior and a barrel helical thread portion which includes a p... | 06/06/1995 |
| 5411710 | Apparatus for processing materials The present invention relates to an apparatus for processing materials, a process for mixing, finishing and de-volatizing polyamide to make 66 nylon and the 66 nylon made by this process. The apparatus comprises an agitator section having an outlet adjace... | 05/02/1995 |
| 5370456 | Continuous kneading apparatus provided with rotatable kneading members and fixed kneading members A kneading apparatus includes a plurality of rotatable discs mounted on a screw shaft disposed on a hollow cylinder and a plurality of fixed doughnut members mounted on an inner wall of the hollow cylinder. The rotatable discs and fixed doughnut members a... | 12/06/1994 |
| 5358331 | Blending device for particulate material, with helical conveyer A device for continuously blending particulate materials has a central shaft, a plurality of metering elements which are each separately metering a respective particulate material, blending element for receiving and blending the metered quantities of part... | 10/25/1994 |
| 5342125 | Feedscrew for injection molding and extrusion A feedscrew for an extruder or molding apparatus has an elongated body with a helical thread formed thereon defining a first channel "A ". At the start of a mixing section, a channel "B " is cut in the center of the channel "A " and both channels are of t... | 08/30/1994 |
