Destination Controlled By Sensed Condition Patents (Class 406/3)
  • Patent number: 10252869
    Abstract: A method for delivering items in a pneumatic delivery system includes receiving delivery information corresponding to an item to be delivered from a first workstation of a plurality of workstations to a second one of the workstations, configuring a first one of a plurality of blowers and a corresponding workstation diverter corresponding to the first workstation to create a path from the first workstation to the first blower, operating the first blower to generate suction drawing the item to the first blower, configuring a subset of the plurality of diverters of the system to create a continuous path from the first blower to the second workstation and routing, when the first and second workstations are in separate subsystems of the pneumatic delivery system, the item through an inter-subsystem exchange unit so that the item is delivered to the second workstation using only the first blower.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 9, 2019
    Assignee: Pevco Systems International Inc.
    Inventors: Namquoc Nguyen, William Powder
  • Patent number: 9969568
    Abstract: A method for delivering items in a pneumatic delivery system includes receiving delivery information corresponding to an item to be delivered from a first workstation of a plurality of workstations to a second one of the workstations, configuring a first one of a plurality of blowers and a corresponding workstation diverter corresponding to the first workstation to create a path from the first workstation to the first blower, operating the first blower to generate suction drawing the item to the first blower, configuring a subset of the plurality of diverters of the system to create a continuous path from the first blower to the second workstation and routing, when the first and second workstations are in separate subsystems of the pneumatic delivery system, the item through an inter-subsystem exchange unit so that the item is delivered to the second workstation using only the first blower.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 15, 2018
    Assignee: PEVCO SYSTEMS INTERNATIONAL INC.
    Inventors: Namquoc Nguyen, William Powder
  • Patent number: 9481001
    Abstract: To provide an intermediate storage unit for the intermediate storage of objects to be painted in the form of vehicle bodies and/or parts of vehicle bodies and/or for the transport of objects to be painted in the form of vehicle bodies and/or parts of vehicle bodies from one process section of a paint shop to another process section of the paint shop, which allows the objects to be painted to also be stored in the intermediate storage unit over a lengthy period of time, e.g. during a shift change, overnight or over a weekend, without impairment to the quality of the painting of the objects to be painted, it is proposed that the intermediate storage unit is configured as a clean-room area.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: November 1, 2016
    Assignee: Dürr Systems GmbH
    Inventor: Wolf-Hasso Schaefer
  • Publication number: 20150056024
    Abstract: A solid particle distribution controller includes a plurality of division plates proximate a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The solid particle distribution controller also includes a plurality of extension plates. Each of the extension plates is movably mounted proximate to a respective division plate for movement in an upstream and downstream direction with respect to the division plate. The plurality of extension plates are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the division plates as needed to improve solid particle distribution among the downstream pipes.
    Type: Application
    Filed: January 11, 2013
    Publication date: February 26, 2015
    Applicant: BABCOCK POWER SERVICES, INC.
    Inventors: John Rath, Murat Yaldizli
  • Publication number: 20140017017
    Abstract: A method and a system may be provided. The system includes a substantially horizontal space adapted to receive objects; multiple tunnels and multiple gas openings configured to convey a gas pressure that induces objects to enter the tunnels; and an electrical testing module configured to compare between an electrical characteristic of an object that is imaged by the imager and an electrical characteristic of a reference object to provide an electrical test result.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 16, 2014
    Inventors: Shy Cohen, Ilan Greenberg
  • Publication number: 20120051848
    Abstract: Provided herein is a system and method for providing inter-zone connections between first and second portions of a pneumatic tube system. The systems and methods (i.e., utilities) permit creating a direct pneumatic path between the first zone and the second zone. In this regard, air pressure or vacuum from a first zone may be utilized to effectuate transfer of a carrier through a portion or all of the second zone and/or to provide operating pressure or vacuum to the second zone.
    Type: Application
    Filed: February 14, 2011
    Publication date: March 1, 2012
    Applicant: SWISSLOG HEALTHCARE SOLUTIONS
    Inventor: Pedro Barrios
  • Patent number: 7260449
    Abstract: In a device for conveying and positioning structural elements at a conveying track, a structural element is brought into pending state at the conveying track and the conveying track is tilted in conveying direction so that the structural element slides downwards to approach a target point. The position of the structural element is detected. The device further includes a control unit wherein the position of the structural element is detected within a predetermined range of the target point to be reached, and a time, at which the conveying track is tilted and re-tilted at a predetermined angular speed by a predetermined angle, is determined by using a calculation and control algorithm, so that the structural element is intercepted.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: August 21, 2007
    Assignee: Technische Universität München
    Inventors: Josef Zimmermann, Dirk Jacob, Adolf Zitzmann
  • Patent number: 7165918
    Abstract: An apparatus for conveying articles from one or more input streams to at least two output streams using air to support, convey and divert the articles is disclosed. The apparatus uses a plurality of primary air passageways to support and convey the articles and a plurality of secondary air passageways to divert and convey the articles. Also disclosed is a method for conveying articles from on or more input streams into at least two output streams utilizing the diverting apparatus.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 23, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Mark William Kruse
  • Patent number: 7080962
    Abstract: An apparatus for conveying articles from one or more input streams to at least two output streams using air to support, convey and divert the articles is disclosed. The apparatus uses a plurality of primary air passageways to support and convey the articles and a plurality of secondary air passageways to divert and convey the articles. Also disclosed is a method for conveying articles from on or more input streams into at least two output streams utilizing the diverting apparatus.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: July 25, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Mark William Kruse
  • Patent number: 6996955
    Abstract: There is provided a system that automatically delivers, monitors and replenishes a string of packaging cushions to hoppers located at multiple packing stations through an elongated cushion delivery duct having a series of intermediate outlets to permit the string of cushions to drop into the hopper located below the delivery duct and above the packing station. A blower is positioned near the inlet of the elongated duct to provide air flow in the duct to carry the string of cushions through the duct to one of the outlets. When the hopper is full of cushions sensors signal the controller to close the diverter and the string of cushions is delivered to another packaging station. The system may include a knife assembly to cut the string of cushions holding pins and the tension-relief diverter it is located at the inlet of the duct to hold tension on the string of cushions while the string is being separated.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: February 14, 2006
    Assignee: Sealed Air Corporation (US)
    Inventors: Robert A. White, Jr., Paul Van Huis, Ronald Sledzieski
  • Patent number: 6932544
    Abstract: An apparatus (10) for feeding sliders (31) from a source of sliders to the slider insertion area (27) of at least two slider insertion devices (18, 19). A sensor (30, 52) on a sender track (20, 21) detects a lack of sliders (31) in the sender track. A signal is sent from the sensor (30, 52) to actuate a vibratory bowl (14) of sliders (31) and a plunger (35) to open a passage, thereby releasing the sliders (31) to a sender track (20, 21). When a sensor (46, 56) detects a lack of sliders (31) in a loading rack (25, 26) or a slider insertion area (27), the sensor (46, 56) signals a plunger (44, 58) and a pneumatic valve (48, 60) to open a passage to provide an air blast, thereby launching the sliders (31) onto the slider insertion area (27) of each slider insertion device (18, 19).
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: August 23, 2005
    Assignee: Illinois Tool Works Inc.
    Inventors: Michael McMahon, Stanley Piotrowski, Donald L. Crevier
  • Patent number: 6709203
    Abstract: An apparatus for directing objects carried serially by a fluid to a desired designation is provided. The apparatus includes an upstream fluid conduit and first and second downstream conduits. The apparatus also includes a sensor associated with the upstream fluid conduit operable to provide information regarding an object at a location in the upstream conduit. A switch is coupled to the upstream fluid conduit and selectively operable to deliver the object from the upstream fluid conduit to either the first or second downstream fluid conduit according to the information by applying a force to at least one of the upstream or downstream fluid conduits.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: March 23, 2004
    Assignee: Weyerhaeuser
    Inventor: Michael McKinnis
  • Patent number: 6582159
    Abstract: The present invention provides apparatus and methods useful, for example, for introducing a desired spacing between or classifying and sorting objects, e.g. plant embryos. Objects carried serially in a fluid stream enter the apparatus via an upstream conduit. A sensor associated with the conduit provides information regarding an object at a particular location in the upstream conduit and produces a signal. A switch coupled to the upstream conduit directs the fluid stream to an appropriate downstream conduit by applying a force to a conduit, e.g., by aligning the upstream conduit with a downstream conduit to create a fluid-tight path. Apparatus according to the present invention are particularly useful for manipulating fragile multicellular biological objects such as plant embryos.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: June 24, 2003
    Assignee: Weyerhaeuser Company
    Inventor: Michael K. McKinnis
  • Patent number: 6375393
    Abstract: Apparatus for the automatic orientation of tubular articles, such as stockings and the like, in which one end is thicker than the other, comprising a tubular chamber (1) with an inlet section (I) and an outlet section (U) for, respectively, the admission and exit of the articles (2), characterized in that said chamber (1) is provided with two cascade filter-valves (3, 30) each of which, when in operating condition, prevents the passage of the thicker end (21) and allows the passage of the thinner end (20) of the articles to be treated, said chamber (1) exhibiting a branch (10) whose mouth is in correspondence of the space between said filter-valves (3, 30) and being associated, in conjunction with its branch (10), to an aspirator (9) by means of which an air flow is generated able to convey the in-process articles as desired.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: April 23, 2002
    Assignee: Matec S.p.A.
    Inventor: Pier Lorenzo Migliorini
  • Patent number: 6354770
    Abstract: The present invention provides apparatus and methods useful, for example, for introducing a desired spacing between or classifying and sorting objects, e.g. plant embryos. Objects carried serially in a fluid stream enter the apparatus via an upstream conduit. A sensor associated with the conduit provides information regarding an object at a particular location in the upstream conduit and produces a signal. A switch coupled to the upstream conduit directs the fluid stream to an appropriate downstream conduit by applying a force to a conduit, e.g., by aligning the upstream conduit with a downstream conduit to create a fluid-tight path. Apparatus according to the present invention are particularly useful for manipulating fragile multicellular biological objects such as plant embryos.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: March 12, 2002
    Assignee: Weyerhaeuser Company
    Inventor: Michael K McKinnis
  • Patent number: 6220790
    Abstract: A process for continuous conveying of a fine-grained and/or pulverized solid to two or more target points by a conveying medium, e.g. gas. The solid is charged into a distribution vessel and from there to several target points by respective supply lines each at a desired target flow rate intended for target point. The target flow rate for each target point is divided into at least two partial target flow rates from the distribution vessel via separate partial supply lines. The partial target flow rates are reunited at the respective target points at the latest. To adjust the target flow rate at a target point at a specific level, individual partial supply lines leading to this target point are alternatively kept shut-off or open.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 24, 2001
    Assignee: Voest Alpine Industrieanlagenbau
    Inventors: Johannes Schenk, Michael Nagl, Walter-Rainer Kastner
  • Patent number: 6109837
    Abstract: In a pneumatic conveyor for coins comprising a plurality of conduits leading from a plurality of payment points, a common conduit into which said plurality of conduits feed, a separator receiving coins from said common conduit and separating said coins from air, suction means for creating a suction in said common conduit and said plurality of conduits to convey coins to said separator, and a storage receptacle for receiving coins from said separator; the improvement comprising a sealing means for opening and closing concealing means disposed in each of said plurality of conduits for opening each of said plurality of conduits only when a coin enters one of said plurality of conduits and for closing the associated said one of said plurality of conduits after said coin has passed said sealing means, thereby to preserve said vacuum both in said plurality of conduits downstream of said sealing means and in said common conduits.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: August 29, 2000
    Assignee: Snef Cote d'Azur (S.A.)
    Inventor: Guy Mausy
  • Patent number: 5993117
    Abstract: A system for transporting ice pieces or the like from a primary bin to one or more satellite bins is disclosed. A dispenser forms a charge of ice pieces in a precharge chamber, which is then transferred by air assist to a delivery tube. A driver member is provided to engage and move the substantially defined charge of ice pieces to the selected satellite bin. The driver member is propelled by a differential pressure within the tube. This permits the defined charge to be exposed only to the low pressure side and insulated from the high pressure propelling medium to minimize breakage and melting during delivery. Before reaching the satellite bin, the piston is reversed to shuttle back to the home position. The satellite bins are connected in series and delivery of a charge to an intermediate bin is provided by moving a tube section out of alignment with the delivery tube. Lubrication and continuous cleaning is performed by the driver member sweeping minimal residual water from melting ice.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: November 30, 1999
    Assignee: Servend International, Inc.
    Inventors: William G. Lancaster, Jerry L. Landers, Richard K. Renken, William L. Ramser, Matthew J. Ramser
  • Patent number: 5864485
    Abstract: A pneumatic carrier system is provided for distribution and transport of materials between different locations. The system includes a plurality of carriers for conveyance of materials and a control system for controlling the movement of the carriers in the system. The control system uses information associated with the carriers and the status of areas of the system to detect gridlock conditions which inhibit the movement of carriers. The system also includes bypass locations which are used to resolve detected gridlock conditions.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: January 26, 1999
    Assignee: TransLogic Corporation
    Inventors: Jeffrey Scott Hawthorne, David Michael Dillon, Gregory R. Chaney, Benjamin L. Lopez
  • Patent number: 5846029
    Abstract: The fabric transport system comprises a series of fluidly communicating tubes and includes: an intake line configured to receive a fabric piece from the predetermined departure location; a main line fluidly connected at one end with the intake line; a branch line being fluidly connected at its upstream end to an intermediate portion of the main line at a junction; a vacuum source connected with the downstream end of the branch line for drawing air of sufficient quantity and velocity through the intake line, the main line, and the branch line to draw a fabric piece into the intake line and the main line; and a counterflow valve positioned on an intermediate portion of the main line downstream of the junction between the main line and the branch line. The branch line includes a deposit nozzle leading to the predetermined destination.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 8, 1998
    Assignee: Textile/Clothing Technology Corporation
    Inventors: A. Gregory Beard, Judson H. Early
  • Patent number: 5846030
    Abstract: The fabric transport system comprises a series of fluidly communicating tubes and includes: an intake line configured to receive a fabric piece from the predetermined departure location; a main line fluidly connected at one end with the intake line; a branch line being fluidly connected at its upstream end to an intermediate portion of the main line at a junction; a vacuum source connected with the downstream end of the branch line for drawing air of sufficient quantity and velocity through the intake line, the main line, and the branch line to draw a fabric piece into the intake line and the main line; and a counterflow valve positioned on an intermediate portion of the main line downstream of the junction between the main line and the branch line. The branch line includes a deposit nozzle leading to the predetermined destination.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 8, 1998
    Assignee: Textile/Clothing Technology Corporation
    Inventors: A. Gregory Beard, Judson H. Early
  • Patent number: 5709506
    Abstract: The fabric transport system comprises a series of fluidly communicating tubes and includes: an intake line configured to receive a fabric piece from the predetermined departure location; a main line fluidly connected at one end with the intake line; a branch line being fluidly connected at its upstream end to an intermediate portion of the main line at a junction; a vacuum source connected with the downstream end of the branch line for drawing air of sufficient quantity and velocity through the intake line, the main line, and the branch line to draw a fabric piece into the intake line and the main line; and a counterflow valve positioned on an intermediate portion of the main line downstream of the junction between the main line and the branch line. The branch line includes a deposit nozzle leading to the predetermined destination.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: January 20, 1998
    Assignee: Textile/Clothing Technology Corporation
    Inventors: A. Gregory Beard, Judson H. Early
  • Patent number: 5660506
    Abstract: Pneumatic conveying apparatus and method are described to provide for a simple, economical, convenient (and preferably automatic) system for conveying small pieces of frozen food (e.g., chopped vegetables, diced meat, or preferably ice cubes or crushed ice) on an as-required basis to one or more locations remote from a food source. The system is configured such that dispensing locations can be added or eliminated from the system or temporarily taken "off line" from the system without the need to change the basic system configuration or the central food providing apparatus. The apparatus includes a food source, a feed auger (preferably reversible) for moving the food from the source into the conveying conduit, use of pressurized air to convey the food through the conduit, and a receiver bin in the terminal container to collect the conveyed food for subsequent dispensing or use. Appropriate sensors and controllers, which may be microprocessor-based, may be used to automate the system.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: August 26, 1997
    Assignee: D&B Supply Corp.
    Inventors: Jon Eric Berge, Glenn Scott Seamark
  • Patent number: 5651643
    Abstract: Apparatus for conveying filter rod sections from storage or from a maker to a reservoir or to a filter tipping machine for cigarettes or other rod-shaped articles of the tobacco processing industry has a first conveyor which advances the filter rod sections lengthwise, a second conveyor which advances the sections sideways, and a unit which transfers successive sections of a series of sections delivered by the first conveyor to the second conveyor. The advancement of sections by the first conveyor is interrupted if the spacing between successive sections in the first conveyor is less than required for disturbance-free transfer of sections from the first conveyor into the second conveyor. One or more sensors are provided to minitor the movements of sections at the transfer unit and to generate signals which are utilized to remove sections from the transfer unit when the pattern of movement of sections from the first conveyor to the second conveyor departs from a desired pattern.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: July 29, 1997
    Assignee: Hauni Maschinenbau AG
    Inventors: Michael Haul, Rolf Petersen
  • Patent number: 5556236
    Abstract: A pneumatic filter transport system has a gate (18) in a section of conveying duct (2), which gate and is openable in response to signals indicating a filter rod jam in a receiver unit (15) connected to the duct. Once opened, the gate allows remaining filters in the duct to be directed to a dump (30): this reduces the risk of a receiver jam developing into a line jam (which is more difficult to clear). The gate may be provided in a curved section of duct just upstream of the receiver. The duct may incorporate a longitudinally-extending partition (60), which allows removal from the duct of loose material (e.g., carbon granules) which has become separated from the conveyed filters. The duct may have longitudinal slots (68) which allow conveying air to exhaust from the duct upstream of the receiver.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 17, 1996
    Assignee: Molins PLC
    Inventors: Albert D. Seim, II, Herman J. Steinbuchel, Charles R. Willing
  • Patent number: 5549421
    Abstract: In apparatus for conveying batches of ice lumps from a storage hopper to remotely located ice dispensers, ice lumps from the storage hopper are delivered into the main conduits through corresponding main valves and connecting conduits extending between each main valve and the storage hopper. Metering valves meter batches of ice lumps of predetermined size into the main conduits. Conveying air from an air blower is supplied to the main conduits through the main valves for conveying the batches of ice lumps. In use, batches of ice lumps are intermittently delivered into the main conduit, and the batches of ice lumps and conveying air are alternately supplied to the main conduit.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 27, 1996
    Assignee: EOLAS-The Irish Science & Technology Agency
    Inventors: Robert C. Reinhardt, Richard M. Humphreys
  • Patent number: 5465822
    Abstract: An assembly is provided for densifying and distributing recycled commodities, such as aluminum cans, glass bottles, and PET bottles. A sensor senses a feature of the commodity, including material of composition and color. Based on the sensed material of composition, the commodity is either shredded (aluminum and PET) or crushed (glass) into densified material. A distribution device receives the densified material and, according to its sensed material of composition and color, distributes it to the proper storage path for storage in one of a plurality of segregated storage bins.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: November 14, 1995
    Assignee: Environmental Products Corporation
    Inventors: Bruce H. DeWoolfson, Ken R. Powell, Warner Schumacher
  • Patent number: 5354152
    Abstract: In apparatus for conveying batches of ice lumps from a storage hopper to remotely located ice dispensers, ice lumps from the storage hopper are delivered into the main conduits through corresponding main valves and connecting conduits extending between each main valve and the storage hopper. Metering valves meter batches of ice lumps of predetermined size into the main conduits. Conveying air from an air blower is supplied to the main conduits through the main valves for conveying the batches of ice lumps. In use, batches of ice lumps are intermittently delivered into the main conduit, and the batches of ice lumps and conveying air are alternately supplied to the main conduit.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: October 11, 1994
    Assignee: EOLAS - The Irish Science and Technology Agency
    Inventors: Robert C. Reinhardt, Richard M. Humphreys
  • Patent number: 5234292
    Abstract: A pneumatic tube conveyor system comprises a dispatching station (13) for spatching conveying cases, a receiving/dispatching station (22) for receiving conveying cases, and an intermediate store (42). A tube system comprising a bidirectional line connects the dispatching station the receiving/dispatching stations and the intermediate store. The tube system is associated with a plurality of gates (21, 33, 40, 51, 54, 55, 57, 58). Control means serve for connecting the dispatching station to the receiving/dispatching station, the receiving station to the intermediate store, and the intermediate store to the dispatching station.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: August 10, 1993
    Assignee: Infotronic Vertriebsgesellschaft fuer Kommunikationssysteme mbH
    Inventor: Hartmut Lang
  • Patent number: 5217328
    Abstract: A pneumatic tube conveyor system comprises at least two dispatching stati (13) for dispatching conveying cases and at least two receiving stations (22) for receiving the conveying cases. Pneumatic tube lines connect the dispatching stations and the receiving stations. An intermediate store (25) is provided within the tube lines. The tube lines are associated with a plurality of gates (21, 26, 33). Control means serve for connecting any dispatching station selectively to any receiving station or to the intermediate store, and for connecting the intermediate store to tube lines leading to any receiving station.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: June 8, 1993
    Assignee: Infotronic Vertriebsgesellschaft fur Kommunikationssysteme mbH
    Inventor: Hartmut Lang
  • Patent number: 5040929
    Abstract: A loading system for light particulate materials. A storage hopper for granular material includes an airlock by which the material is fed into an air stream. The air and accompanying material are fed to a distribution pipe with multiple flexible downward projecting fill spouts which are spaced at regular intervals. Each spout has an associated control valve and air pressure sensor within the spout, so that as a container being loaded by the spout is filled, and the pressure in the spout increases beyond a preselected level, the spout is closed off and material automatically is transported to the next open spout. Air operated spreader heads may also be furnished at the lower ends of the spouts to assure that the container volumes are completely filled.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: August 20, 1991
    Assignee: Fuller Company
    Inventors: Kermit D. Paul, Robert E. Romanchik
  • Patent number: 4770344
    Abstract: A power spray system for applying particulate powder material to a substrate includes a volumetric or gravimetric dry material feeding device having an outlet connected to a manifold formed with an internal cavity and a plurality of passageways communicating with the internal cavity. A highly accurately metered quantity of powder is transmitted into the internal cavity of the manifold, which is either applied to the substrate or recirculated back to the powder source. An air amplifier connected to one of the passageways is operable to draw ambient air through a vent passageway into the internal cavity of the manifold to form a stream of air-entrained powder. The powder stream is then drawn out of the internal cavity of the manifold by the air amplifier into a spray gun for discharge onto the substrate.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: September 13, 1988
    Assignee: Nordson Corporation
    Inventor: Thomas A. Kaiser
  • Patent number: 4738289
    Abstract: An apparatus for weighing granular or pulverulent bulk goods, where the bulk good is moved by reduced pressure from a silo through at least one conveyance duct to a scale and where the flow of material is lowered by increasing the proportion of air toward the end of the conveyance procedure, is designed in such a manner as to make possible accurate and precise metering at high conveyance rates.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: April 19, 1988
    Inventors: Andreas von Bennigsen-Mackiewicz, Christoph von Bennigsen-Mackiewicz
  • Patent number: 4648754
    Abstract: An arrangement for pneumatically transporting fiber material flocks through respective chutes to individual carding machines includes a duct which bounds an internal passage that communicates with the chutes, the chutes extending downwardly from the duct. A plurality of control elements is arranged in the passage, respective two of such control elements being situated between each adjacent two of the chutes. Each of the control elements has a substantially plate-shaped control member which is pivotally mounted at the bottom region of the duct, and a block member that extends substantially at a right angle to the control member remotely from the pivot axis and extends toward and into the respective chute. The control element can be pivoted into and arrested in any selected pivoted position, including a closed position in which the block member thereof substantially completely prevents the flow of the transporting medium past the same.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: March 10, 1987
    Assignee: Maschinenfabrik Rieter A.G.
    Inventors: Paul Staheli, Urs Stahli, Fritz Knabenhaus
  • Patent number: 4545410
    Abstract: A system for transferring dry flowable material includes a substantially closed vessel having an inlet and a discharge end. A cycle valve and venturi are arranged between a source of fluid pressure and the vessel such that the cycle valve may be selectively actuated to pass pressurized fluid directly to the vessel or through the venturi. A suction line interconnects the vessel to the throat section of the venturi such that passage of fluid flow through the venturi establishes a suction within the vessel.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: October 8, 1985
    Assignee: Cyclonaire Corporation
    Inventors: Kermit D. Paul, Charles F. Addams, Jr., Frederick S. Wuertele
  • Patent number: 4359298
    Abstract: A method for filling an elongated sump which has a plurality of diverter gates emptying into the sump is accomplished by dividing the sump into a plurality of adjacent zones along each side of the sump and adding slurry in each of the zones in sequential order in a direction related to the direction of movement of a dredge removing material from the sump. The sequencing automatically skips the zone where the dredge is removing material and empties it during that period of time in the sequence just previously emptied.
    Type: Grant
    Filed: January 6, 1981
    Date of Patent: November 16, 1982
    Assignee: Conoco Inc.
    Inventors: Frederick A. Webb, Richard E. Doerr
  • Patent number: 4354775
    Abstract: A device for cleaning blockages of a pneumatic tube for carrying seeds or similar particulate matter comprising a sensing device adapted to sense the blockage, a gate in the tube adapted to be opened in response to the sensor and a pneumatic device to blow the seed or other matter out of the tube. A time delay relay may be used to prevent unwarranted recycling of the gate opening and pneumatic devices.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: October 19, 1982
    Inventor: Leon C. Jalas
  • Patent number: 4319782
    Abstract: To limit the amount of solid particulate matter fed into an airlift pipeline from, especially, a suction nozzle device, the density of the suspension passing from the suction nozzle to the airlift system is measured. If the measured density is above a predetermined value, a proportion of the suspended solid material is removed prior to passing into the airlift pipe.The density of the moving suspension is determined by a radiation-type densitometer located upstream from the airlift pipe. The density can also be directly measured by a balance beam or weighing arrangement connected to a pivotable length of pipe. Where fine particles are present that are not to be considered in the densitometer measurement, a differential measurement can be obtained by a second measurement of the density of liquid from which the large particles have been screened.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: March 16, 1982
    Assignee: Deepsea Ventures, Inc.
    Inventor: John P. Latimer