Upstream Of Suction Source Patents (Class 406/151)
  • Patent number: 5195852
    Abstract: 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 intake vacuum hose, thus creating a boost heretofore unavailable. A second embodiment teaches an insert to be used at a junction in the line to further increase the efficiency of the loading system.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: March 23, 1993
    Inventors: Jack R. Malugani, Joseph Malugani, Jr., Harold L. Hull
  • Patent number: 5167471
    Abstract: An anti-choke blender fitting used in a pneumatic conveyor system utilizing a negative pressure to transport milling stock material, the fitting including a body with a top surface joined by downwardly extending side walls terminating in an open bottom with a channel-shaped relief gate with upwardly extending side walls hingedly mounted to the body with a closed position of the relief gate closing the open bottom of the body in a non air-tight relationship with the side walls of the gate extending above the spout of the inlet conduit, thereby minimizing the leakage of milling stock around the periphery of the relief gate in its closed position.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: December 1, 1992
    Assignee: Kice Industries, Inc.
    Inventors: John E. Kice, Gordon J. Peters
  • Patent number: 5100266
    Abstract: A vacuum-type sewage collecting apparatus collect sewage discharged from a plurality of houses or facilities in an accumulating tank through a vacuum sewage pipe network, the inner pressure of which is negative. The vacuum sewage pipe network includes a plurality of upper stream pipes and lower stream pipes fastened to each other in a branch-like fashion. Each lower stream pipe has a sawtooth-like shape formed by alternately disposed downwardly-sloping portions extending gently downwards toward said accumulating tank, and lift portions fastened to the lowermost portion of a respective downwardly-sloping portion and extending upwardly with a steep slope. The upper stream pipe is connected to the lower stream pipe in a range in which a horizontal plane, which extends through an upper end portion of the lower stream pipe at the position in which the downwardly-sloping portion adjoins the lift portion, is higher than the center of the lower stream pipe.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: March 31, 1992
    Assignee: Ebara Corporation
    Inventors: Akihiro Ushitora, Kazuo Yamaguchi, Tsuneo Asanagi
  • Patent number: 5096337
    Abstract: A device achieves the entrainment of ultralight loose fill packing materials in an air stream to transport the packing materials into a depository for reuse or disposal. The device has an elongated air flow duct, with relatively low air flow induced by a rotating fan blade that extends partially into the interior of the duct. The construction provides for the air flow into the duct to be equal to the air flow out of the duct. A screen surrounds the fan blade to prevent contact with the packing materials as they flow through the duct. The collected packing materials are deposited into a flexible plastic bag, for example, that can be releasably secured to a perforated shroud on the outlet end portion of the transport duct. This device readily removes the loose fill packing materials from shipping cartons or, in the alternative, can recover widely scattered pieces of the material.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: March 17, 1992
    Inventor: John F. Denton
  • Patent number: 5083704
    Abstract: An automatic trash disposal system (20) employing a trash discharge station (56) located internally of a building structure (22) and having a plurality of dedicated trash disposal ports (60P, 60M, 60G, 60NR) for receipt of different categories of recyclable trash items and/or non-recyclable trash items; a remotely located trash housing (21) exterior of the building structure (22) and housing a plurality of dedicated removable trash receptacles (36, 38, 39, 40); conduits (64P, 64M, 64G, 64NR) coupling the trash disposal ports (60P, 60M, 60G, 60NR) with respective different ones of the remotely located dedicated trash receptacles (36, 38, 39, 40); and, a blower/motor combination (68/79) for drawing a vacuum in the enclosed remotely located trash housing (21) and the conduits (64P, 64M, 64G, 64NR) for vacuum transferal of items of trash inserted into a particular one of the interior trash disposal ports (60P, 60M, 60 G, 60NR) to a particular one of the remotely located dedicated trash receptacles (36, 38, 39, 40
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: January 28, 1992
    Inventor: George Rounthwaite
  • Patent number: 5078548
    Abstract: The invention relates to a method for removing and transferring refuse from serving trays which on conveyor belts are carried past different stations for removing dirty dishes, removing refuse and washing the trays. According to the invention a vacuum is produced in a suction nozzle provided immediately adjacent the path along which the trays are conveyed, and the refuse is transferred through a transfer duct which is connected to the nozzle and through which the vacuum is produced at the nozzle. The invention also relates to an installation for performing the method.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: January 7, 1992
    Assignee: AB Centralsug
    Inventors: Hans Hyden, Yngve Forsberg
  • Patent number: 5074718
    Abstract: A vacuum-type sewage collecting apparatus is arranged in such a manner that sewage discharged from the houses or facilities is once accumulated in a cesspool, and the sewage accumulated in the cesspool is then collected through a vacuum valve and a vacuum sewage pipe, the interior of which is under a negative pressure. The vacuum valve is operated by negative pressure taken from a vacuum source and supplied to the vacuum valve via a connecting pipe. The negative pressure for operating the vacuum valve is taken from a portion of a vacuum sewage pipe which is elevated at a level higher than that of the vacuum valve and is disposed downstream of the vacuum valve. Alternatively, the negative pressure may be directly taken from an accumulating tank, the inner pressure of which has been evacuated by a vacuum pump, from a pipe which establishes a connection between the accumulating tank and the vacuum pump, or from a tank connected to the pipe connecting the accumulating tank and the vacuum pump.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: December 24, 1991
    Assignee: Ebara Corporation
    Inventors: Akihiro Ushitora, Kazuo Yamaguchi, Tsuneo Asanagi
  • Patent number: 5054965
    Abstract: An improved diverter apparatus (18) is provided for use in pneumatic conveying systems (16), in order to permit selective diversion of product to waste or recycle. The apparatus (18) includes an elongate tubular body (42) having at least one opening (48) therein; a gate (52) is situated adjacent the opening (48) for normally closing the same. A piston and cylinder assembly (62) is operatively coupled with the gate (52) for selective, remote operation of the gate (52). When the gate (52) is opened, product is diverted and does not pass the gate (52).
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: October 8, 1991
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Douglas S. Clark, Elmer Osterhaus
  • Patent number: 5007772
    Abstract: A machine for harvesting fruit including a supporting vehicle (30, 31) having a hopper 40 on one end (31) and a three-section extensible boom (80a, 80b, 80c) rotatably mounted on the other end (30) and having a bucket (96) on the outer end of the boom, and extensible conduits (82a, 82b, 82c) enclosed within the boom for conducting fruit to and through an extended conduit system (99, 75b) and into the boom.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: April 16, 1991
    Inventors: Frank J. McKenna, Richard K. Horst, James F. Horst, Rodney L. Arney
  • Patent number: 4995966
    Abstract: A sifter-screening machine for loose material, especially flour, including an inlet for the material, downstream thereof a screen through which the material can be conveyed via an air stream, and downstream thereof an outlet for screened material. Disposed in the conveying route of the material, downstream of the screen, is a zone of reduced static pressure followed in the conveying direction by a conveying zone having an increasing cross-sectional configuration. The weight of the material just upstream of the outlet is at least nearly equal to the oppositely directed pressure of compressed air below an air-permeable element for supplying the material to the outlet.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: February 26, 1991
    Assignee: Firma IBV
    Inventor: Maximilian Ofner
  • Patent number: 4973202
    Abstract: Undesired glass particles emitted into the atmosphere from breakage of glass jars in the manufacturing process are removed utilizing an exhaust system, comprising a hood, exhaust piping, blower and cyclone. The hood and exhaust system protects the area adjacent to where glass jars are produced from emission of dangerous glass particles which result from breakage of glass jars during the assembly process.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: November 27, 1990
    Inventor: Charles Becker
  • Patent number: 4946322
    Abstract: 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 shroud is mounted so that the machine tool extends through a central opening formed in the shroud. The annular air passage has an upper air inlet intersecting the air passage with a cylindrical component and a lower air outlet facing inwardly toward the machine tool. Pressurized air flows into the air passage and is thus directed from the air outlet toward the machine tool in a swirling manner. At the same time, a vacuum withdraws air from within the shroud to collect dust and chips produced by the machine tool.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: August 7, 1990
    Assignee: The Boeing Company
    Inventor: Kevin J. Colligan
  • Patent number: 4900200
    Abstract: An arrangement of pneumatic-transporting a powdered or granular maerials such that they do not lodge, using the transport pipe smaller diameter having the bore 2-6 times as long as maximum length of the particle of the powdered or granular materials to be transported, while the powdered or granular materials are caused to float at the inlet of the transport pipe or in the vicinity of the inlet thereof by the powdered or granular materials floating apparatus with help of the collector provided on the transporting destination at the outlet of the transport pipe.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: February 13, 1990
    Assignee: Matsui Manufacturing Co., Ltd.
    Inventors: Kimura Harumoto, Tanigawa Toyoaki
  • Patent number: 4853112
    Abstract: Apparatus for separating heavy from light constituents in coarse comminuted municipal waste having a relatively small inlet duct connecting to a much larger air classifying chamber. A by-pass duct is disposed alongside the chamber, and connects thereto at its upstream and at its downstream end. Dameprs are provided to adjust the velocity of airflow through the chamber and by-pass duct depending upon the density of the light weight constituents.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: August 1, 1989
    Inventor: Victor Brown
  • Patent number: 4829724
    Abstract: The invention is directed to an improved hopper for feeding abrasive material of very small grit size to a cutting head. The device comprises an open hopper vertically disposed with a transverse positioned pick-up tube located in the lower portion of the hopper. The pick-up tube has a tubular center with a necked down diameter intermediate of its's ends. An opening extends from the bottom of the tube into the tubular center at a location centered in the necked down portion thereof. One end of the tube is vented to atmosphere through an adjustable orifice and the other end is connected to a source of low pressure created within the mixing chamber of the nozzle body assembly by high pressure water passing across the open end of the tube. This effect causes abrasive grit to be drawn through the opening in the bottom of the tube out the low pressure end of the tube to the cutting head.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: May 16, 1989
    Assignee: Rohr Industries, Inc.
    Inventors: Fred W. Miller, Jr., Forrest W. Sweat, Dale L. Jennings
  • Patent number: 4826362
    Abstract: A solids transfer apparatus has at least one closed tank provided with a suction opening and a discharge opening, a suction valve communicated with the suction opening, a discharge valve communicated with the discharge opening, a pressure reducer for introducing solids into the closed tank and a supply device for discharging solids in fluid out of the closed tank whereby solids can be transferred. A removing device constituted by a water supply and a solids removing valve may be provided so that solids in the suction valve are removed before the suction valve is closed.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: May 2, 1989
    Assignee: Kyoeizoki Co., Ltd.
    Inventor: Takeshi Hayashi
  • Patent number: 4808043
    Abstract: Apparatus is described for subdividing a single stream of powder products entrained in a gas into a plurality of secondary streams. The apparatus comprises an array of identical ducts (33, 47) distributed over the lateral surface of a cone (34, 43) having a circular section, said ducts converging in the vicinity of the apex (35, 44) of the cone to constitute a single intake (36, 41) directed along the axis of the cone and connected to a primary intake pipe (11), said ducts being oriented along the generatrices of the cone and ending at its base in a multiplicity of orifices each connected to a secondary conduit (31) carrying one of the secondary streams.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: February 28, 1989
    Assignee: Saint-Gobain Vitrage
    Inventors: Claude Le Marrec, Carl Kramer, Hans W. Kuster
  • Patent number: 4803034
    Abstract: Producing a concrete object by first pouring an uncured mixture into a mold and then removing undesired uncured concrete using a suctioning apparatus having a liquid supply and a suction nozzle attached to a suction channel. The concrete mixture is loosened and diluted by liquid supplied through the liquid supply. This liquid and loosened diluted concrete are suctioned through the suction nozzle and the suction channel into a tank.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: February 7, 1989
    Assignee: Machinefabriek de Remise B.V.
    Inventor: Willem Moret
  • Patent number: 4770566
    Abstract: A slide fastener overturning conveyer includes an elongate hollow rectangular guide member having a guide channel for the passage of a slide fastener, and air nozzles disposed adjacent to an inlet of the guide channel and directed toward an outlet of the guide channel. The guide member is rotatably movable about its longitudinal central axis through an angle of 180 degrees for overturning the slide fastener while the latter is received in the guide member. The air nozzles eject a compressed air to convey the overturned slide fastener. The angular movement of the guide member and the compressed-air ejection are controlled by a sensor provided for detecting leading and trailing ends of the slide fastener. The overturning conveyer thus constructed is relatively small and simple in construction and is effectively operative even when a slide fastener is relatively long.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: September 13, 1988
    Assignee: Yoshida Kogyo K. K.
    Inventors: Yozo Okada, Akiyoshi Kando
  • Patent number: 4765779
    Abstract: A method of transferring granular carbon between containers. The granular carbon is formed into a slurry and transferred between the containers using liquid pressure differential. Preferably, a negative pressure differential is used to draw the carbon slurry from a first container to a second container.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: August 23, 1988
    Inventor: William L. Organ
  • Patent number: 4394259
    Abstract: Vacuum pneumatic conveying apparatus and method are utilized to transfer food products, such as fish, from a boat to a processing factory directly or via a tender vessel. Fish products such as salmon, are withdrawn from a fishing boat through an intake nozzle of a pneumatic vacuum system and entrained in an air flow, upwardly through inlet or receiving conduits of a vacuum, pneumatic, conveying system, and on through a product separator of an in line assembly of an upper product separator and a lower liquid separator. Salmon continue on flying out of the product separator and commence their downwardly momentum and gravity induced travel through discharge conduits, encompassing essentially non flowing air maintained under continuing vacuum.
    Type: Grant
    Filed: October 27, 1981
    Date of Patent: July 19, 1983
    Assignee: TEMCO, Inc.
    Inventors: John R. Benny, Robert W. Buher, Paul K. Smith
  • Patent number: 4376602
    Abstract: A system for removing packing coke from baking chambers of a furnace for baking carbon bodies includes a crane mounted for movement along a rail, a silo supported by the crane, a suction tube connected to the silo and insertable into packing in a furnace baking chamber, and structure for supplying vacuum to the suction tube to remove the packing coke therethrough from the chamber into the silo. The vacuum structure includes a closed vacuum duct extending parallel to the rail, the vacuum duct having an upper slide surface and a plurality of valves spaced along the slide surface. A stationary vacuum source is connected to the vacuum duct and creates therein a vacuum. A sliding box is supported by the crane and is movable thereby along the vacuum duct over the valves on the slide surface. Each valve is openable by a respective pneumatic cylinder.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: March 15, 1983
    Assignee: Ardal og Sunndal Verk a.s.
    Inventors: Jonas R. Landmark, Paul A. Schneider
  • Patent number: 4360294
    Abstract: This invention relates to an apparatus for extracting silage for a cylindrical silo, of the kind including a suction extractor pipe and a suction aperture means including toothed wheels for feeding silage material to the suction aperture, the wheels directly carrying the extractor device. According to the invention, these toothed wheels are freely rotatably journalled on a plurality of supporting radial arms, and a cutting wheel is positioned obliquely with respect to a plane extending above and parallel to the silage surface. The peripheral part of the wheels next adjacent a vertical wall of the silo is spaced from the silo wall by a small amount and is freely rotatably journalled at the extremity of each of the radial arms.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: November 23, 1982
    Assignee: Engelbrecht + Lemmerbrock GmbH + Co.
    Inventor: Ernst-W. Ahrens
  • Patent number: 4318643
    Abstract: In a dust extraction system for woodworking machinery, the dust is collected by a hood over each machine and is carried by an air flow produced by a blower through a branch conduit to a manifold which is common to a number of branch conduits. The manifold is made sufficiently large that the air flow velocity in the manifold is too low to carry the dust along the manifold, and therefore the dust collects at the bottom of the manifold, from which it is removed at intervals by a conveyor, which carries the dust to a central hopper. A control system keeps the subatmospheric pressure in the manifold substantially constant, so that the number of machines served by the system can be changed without affecting the system performance.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: March 9, 1982
    Assignee: AB Svenska Flaktfabriken
    Inventors: Bertil S. W. Larsson, Stefan J. A. Bokfors, Karl G. Olsson
  • Patent number: 4278240
    Abstract: The invention relates to an apparatus for injection of powder in a metal melt, a charging container being filled by means of an ejector via a sieve for separation of coarser grains. The charging container is combined with a lance for immersion into the melt.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: July 14, 1981
    Assignee: Asea Aktiebolag
    Inventor: Ake Archenholtz
  • Patent number: 4253782
    Abstract: A hopper comprises a suction conduit and a pressure conduit each connected to a pump for discharge of the hopper contents, the suction conduit being horizontal and communicating at its free end via a control valve with water outside the hopper, a plurality of vertically extending suction pipes extending downwardly from the suction conduit and spaced above the hopper bottom, each suction pipe having a valve, and cone-shaped bottom valves below the suction pipe open ends for conducting water from outside the hopper to the suction pipes.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: March 3, 1981
    Assignee: Koninklijke Volker Stevin N.V.
    Inventor: Joost Brakel
  • Patent number: 4227863
    Abstract: A centrifugal aspirator includes an enclosed cylindrical vortex chamber having a plurality of high pressure fluid inlets tangentially oriented with respect to a cylindrical wall of the vortex chamber, an intake inlet approximately centrally disposed in one end of the vortex chamber for conducting a conveying fluid and solid particles contained in the conveying fluid, and an exhaust outlet disposed along the cylindrical wall of the vortex chamber for exhausting a mixture of the high pressure injected fluid, the aspirated conveying fluid and the solid particles.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: October 14, 1980
    Inventor: Raymond Sommerer
  • Patent number: 4160567
    Abstract: A pneumatic device for unloading cargoes of particulate materials from ships' holds is described in which inside a length of pipe, which sucks the material out of the hold and is principally in the horizontal position, there is at least one fluidizing base which transports the material further and into a silo. The fluidizing or transporting base can be selected to match the requirements for efficient transportation of different kinds of particulate material.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: July 10, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventor: Walter Merz