William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8186913 | Systems and methods for particle focusing in microchannels Various systems, methods, and devices are provided for focusing particles suspended within a moving fluid into one or more localized stream lines. The system can include a substrate and at least one channel provided on the substrate having an inlet and an outlet. Th... | 05/29/2012 |
| 8167516 | Pellet Delivery System Palletized materials are delivered in controlled quantity into a pulse modulated air stream. A vortex of compressed air gates the pellets into flexible small diameter tubing for transit to a hot melt adhesive application apparatus. Pellets of different materials, si... | 05/01/2012 |
| 7690870 | Device for transporting and supporting sheet-shaped articles, especially sheets of glass To ensure that the support force which is dependent on the pressure of a support fluid is essentially the same also in the edge area of an article (9), especially sheets of (flat) glass, which is to be held or transported, as the support force in the middle a... | 04/06/2010 |
| 7318459 | Method and apparatus for conveying flexible fabrics using dual side outlets A system for pneumatically conveying flexible fabric items such as uniforms and table linens has a pair of side outlets at each discharge location to enhance the discharge capacity. Each side outlet is provided with a gate to open and close the outlet. A hopper havi... | 01/15/2008 |
| 7311474 | Pellet loader A pellet loader according to the present invention is provided with an ejector portion 1. A gas supply pipe 2 is connected to an injection nozzle 11 of the ejector portion 1 for supplying compressed gas from a compressed gas source 8 | 12/25/2007 |
| 7303060 | Material conveying system without dust rising A material conveying system without dust rising, having a plurality of trays; a transmission mechanism, for carrying the trays and transmitting the trays in motion; and a controller, for controlling the transmission mechanism, is characterized in that the material c... | 12/04/2007 |
| 7270249 | Pneumatic metering apparatus for flowable solids product Apparatus for pneumatically metering flowable solids products to a conveying air stream without using mechanical metering devices. The apparatus includes an eductor receiving product from a hopper and connected to an air supply that is automatically adjustable in re... | 09/18/2007 |
| 6974279 | Ejector, fine solid piece recovery apparatus and fluid conveyor An ejector is configured to generate a high negative pressure capable of sucking and conveying fine metal pieces or chips, such as machinings or cuttings, for example, when using the ejector as a driving source for a fluid conveyor. The ejector includes a convergent... | 12/13/2005 |
| 6971786 | Method for conveying a solid substance The invention relates to a method for conveying a solid (2) in a conveying medium (15), said solid (2) being delivered to a container (5) with outlet (7). The solid (2) is in this case dispersed in the transport liquid (1... | 12/06/2005 |
| 6923601 | Conveyor device for particulate material A conveyor apparatus for a particulate material to be conveyed, e.g., a synthetic resin granulate or powder, with a plurality of handling devices (30, 31) for processing the conveyed material, a storage bin (20) for the material to be conveyed, a conve... | 08/02/2005 |
| 6857826 | Injector for a powder coating installation An injector for a powder coating installation having an injector casing made of electrically non-conductive material, such as plastics. The interior surface and the exterior surface of the injector casing are coated with coatings of electrically conductive material,... | 02/22/2005 |
| 6840715 | Chute for forced immersion of an article A sleeve (50) for forced immersion of an article including a tubular body (52) defining an article travel passage, and at least one fluid inlet (58) for establishing an article drive stream. The passage defined by the body is generally tubular. ... | 01/11/2005 |
| 6749374 | Flow development chamber for creating a vortex flow and a laminar flow A pneumatic conveying system for conveying particulate material through a conduit that creates a strong laminar flow of materials and air surrounded by a boundary layer flow of air, such that long transport distances through dramatic elevation and directional change... | 06/15/2004 |
| 6732897 | Venturi inducer system for transferring material A continuous supply of scrap material from a papermaking or converting process is transferred by a venturi inducer system including a housing surrounding a tubular intake duct which defines with the housing an annular air chamber connected to receive pressurized air... | 05/11/2004 |
| 6708715 | Pneumatic pressure control device A pressure control means comprising a jet pump (1) whose pressure state in a branch flow duct (4) may be changed by means of a choke (6), which influences the spent air flow from the jet pump (1). This renders possible a rapid and steples... | 03/23/2004 |
| 6702523 | Material handling air conveyor A loading apparatus includes a loading tube with an input end and an output end, the input end positioned between three and six feet above a surface, the output end positioned between six and twenty feet above the surface. The surface is sufficiently stro... | 03/09/2004 |
| 6619889 | Conveyor apparatus An apparatus and method for conveying solids from a process vessel in which the vessel has a plurality of eductors sequentially oriented end-to-end from a vessel inlet to the vessel outlet. Conveying fluid enters the inlet drawing bulk particulates via th... | 09/16/2003 |
| 6609857 | Method and device for mixing a flowing gas and a pulverulent material A method for mixing a pulverulent material in a main gas flow with a view to achieving uniform distribution of the pulverulent material. The turbulence in the main gas flow is increased in a vortex-generating zone. The pulverulent material is introduced i... | 08/26/2003 |
| 6461086 | Method and apparatus for delivering particulate material to an air stream An apparatus and process for directing particulate material (22) into a moving gas stream includes a delivering of the particulate material (22) from a particulate reservoir (24) along a delivery direction (118) into a housing (30) having a housing axis (... | 10/08/2002 |
| 6443671 | Pneumatic distribution machine with a flat tube bend The invention is a pneumatic delivery line of a type used for distributing seeds or fertilizer. The pneumatic delivery line is guided to the distributor in an essentially vertical manner. The delivery line includes a flat tube bend at some point along its... | 09/03/2002 |
| 6443670 | Powder coating equipment having zero-sum control of conveyance and supplement air lines Powder-coating equipment comprises two throttles (6, 16) each mounted in one of a conveyance-air line (8) and a supplemental-air line (18). The throttles' flow impedance` are adjustable in a motorized manner by providing throttle with its own adjustment m... | 09/03/2002 |
| 6386800 | Method and a device for transporting bulk material A method and device for pneumatically transporting bulk material including a plurality of supply elements spaced along a conveyor line. These elements provide an additional gaseous medium as a booster fluid. The supply elements are automatically and indiv... | 05/14/2002 |
| 6200071 | Transfer apparatus and transfer method for particulate material An apparatus and method for transferring a particulate material in a non-contact manner. The apparatus has a driving device including a nozzle curved surface portion fitted to the transfer pipe to join with the inner wall surface of the pipe. The nozzle c... | 03/13/2001 |
| 6183169 | Precision dispensing of ultra-fines via a gas medium A dispensing apparatus for the dispensing of ultra-fine particles on a dry basis in a reproducible manner. The apparatus includes a first gas-solids suspension chamber having particle fluidization means adapted thereto, and a conduit adapted between the f... | 02/06/2001 |
| 6074085 | Cyclonic mixer A pair of concentric tubes having an inlet and an outlet with the outer tube being closed at either end and the inner tube having a plurality of holes with compound angles designed to impart a swirling motion of the air admitted into the interior of the i... | 06/13/2000 |
| 6053667 | Carrying apparatus for spherical objects It is an object of the present invention to provide a novel carrying apparatus for carrying spherical objects such as spherical semiconductors of silicon in which the spherical objects are not contacted with an inner surface of a pipe-shaped body while th... | 04/25/2000 |
| 5924823 | Suction nozzle, method for operation, and use of the nozzle A suction nozzle, comprises a suction nozzle tube having a first end for connection to a suction line and a second end forming a suction port, and at least one lateral opening in the suction nozzle tube in a zone of the suction port for a further flow ext... | 07/20/1999 |
| 5468299 | Device comprising a flat susceptor rotating parallel to a reference surface about a shaft perpendicular to this surface A device comprising a flat susceptor (14) rotating parallel to a reference surface (30) about a rotary shaft (20) perpendicular to this surface and comprising means for obtaining the stability of the susceptor held in sustentation and means for obtaining ... | 11/21/1995 |
| 5429156 | Pneumatic transmission apparatus A spiral flow connector imparts a spiral flow of air to urge parts being transmitted toward a central axis to avoid contact with the walls of the transmission passages of a pneumatic transmission apparatus. The invention is especially useful for preventin... | 07/04/1995 |
| 5374141 | Mat forming apparatus Mat forming apparatus comprising, in combination, a hollow material transporting member, drive structure for producing a pressure differential across spaced portions of the transporting member so that material is propelled from one of the spaced portions ... | 12/20/1994 |
| 5284405 | Method and apparatus for injecting sludge into a kiln A method and apparatus for injecting sludge into a kiln includes a pump for pumping sludge, a conduit for conveying sludge to the kiln including an attrition portion for attriting the sludge into smaller particles, and a conduit enclosing the attrition se... | 02/08/1994 |
| 5232314 | Particle conveying apparatus A particle conveying apparatus includes a transfer tube defining a flow passageway between inlet and outlet ends and defining a flow axis and includes a housing adapted for connection with a source of fluid pressure and for directing fluid from the fluid ... | 08/03/1993 |
| 5210935 | Curved rivet feed chute A device for feeding rivets around a small radius curve includes a rivet guide shoe that fits into a recess in a movable shuttle body that can be moved to position a drill cavity, the rivet insertion device, and a rivet die sequentially under the machine ... | 05/18/1993 |
| 5195852 | Vacuum pick-up nozzle with air boost manifold A manifold is disclosed which is adapted to be used with a system such as a truck mounted vacuum system and includes a nozzle which re-routes a portion of the exhaust air from the blower associated with the vacuum system back through the nozzle into the i... | 03/23/1993 |
| 5195850 | Apparatus and method for transporting buoyant particulate matter such as ice to a submerged location in a fluid Buoyant particles entrained in a transport water are delivered to the bottom of a flooded vessel, overcoming the buoyant force of the particles and other fluid dynamics problems associated with entrained fluid flow. In a preferred embodiment, ice particle... | 03/23/1993 |
| 5188296 | Pulp dispersion lance The lance of the invention includes a sleeve (2A) which conveys air under pressure around a central tube (1) which conveys the pulp that is to be sprayed and dispersed. The wall of this tube is pierced by separation holes (5) to inject a gaseous lining ar... | 02/23/1993 |
| 4946322 | Method and apparatus for confining and collecting dust and particles produced by machine tools A method and apparatus for collecting dust and particles produced in machining a workpiece. The method and apparatus uses a shroud formed by a pair of frusta-conical walls spaced apart from each other to define an annular air passage therebetween. The shr... | 08/07/1990 |
| 4893966 | Lock apparatus for introducing dry granular materials into a pneumatic conveying conduit and spray gun for such materials A lock apparatus for introducing granular dry material into a pneumatic conveying conduit (32), for example of a concrete gun, consisting of a material feeding hopper (4) having a shut-off valve (6) actuable by a pneumatic working cylinder (8). Beneath th... | 01/16/1990 |
| 4883362 | Device for enriching a carrier gas with the vapor of a sparingly volatile substance An enriching device consisting of a container which comprises a removable tightly fitting metal body the sparingly volatile material being present in a coiled groove. During operation of this device transverse flows and shortcuts, respectively, of the car... | 11/28/1989 |
| 4860687 | Device comprising a flat susceptor rotating parallel to a reference surface about a shift perpendicular to this surface A device comprising a flat susceptor rotating parallel to a reference surface about a rotary shaft perpendicular to this surface and comprising means for obtaining the stability of the susceptor held in sustentation and means for obtaining its rotary move... | 08/29/1989 |