Patents Examined by Michael J. Forman
  • Patent number: 5102049
    Abstract: A thrust reverser in a two dimensional jet engine exhaust nozzle employs a plurality of reverser apparati that maintain a constant flow throat area, for example, in the reverse throat mode. A single reverser apparatus includes an actuator that operates through a lever upon linkage and a coupler to drive a set of parallel vanes and at least one independent vane. The parallel vanes are connected by a parallelogram of links to the coupler. The independent vanes move in a manner as defined by a cam having a preselected path therein that causes the independent vanes to move in a desired manner to provide the constant throat area.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: April 7, 1992
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Eric J. Ward
  • Patent number: 5076498
    Abstract: A drip irrigation tape and a method and apparatus for manufacture of same in which there are foils of thermoplastics material formed and sealed to produce a main waterway extending along the tape, and a series of tortuous flow restricting channels which are formed in a further foil by forming these in a channel shape mould on a drum, each channel communicating at one position with the waterway and having an outlet at another position to give a drip feed from each channel, the invention further including using an extrusion of thermoplastics foil directly from an extruding machine into such a forming machine, effecting an aperture from the tortuous channel to the main waterway by using a heated finger, effecting an outlet from the tortuous channel by providing an offset channel part which can then be nicked with a hot blade, and effecting an improved sealing together by using spaced apart dimples in providing joining fusing pressure.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: December 31, 1991
    Assignee: Townsend Controls Pty. Ltd.
    Inventor: James D. Townsend
  • Patent number: 5058811
    Abstract: A device for the dissemination of a spreadable material, such as fertilizer in powder or granule form, which device consists substantially of a supported frame with storage holder 7 for the material for spreading, which holder 7 is provided with an outlet opening and a spreader pipe 10 driven for reciprocal swinging connected thereto, said spreader pipe 10 has near its free outflow opening means influencing the spread pattern, wherein a partition 12 is arranged extending in the central longitudinal plane of the pipe 10 and connecting to the bottom wall thereof and which protrudes freely from the pipe over a determined length, and to arrange above the transverse partition an extra rebound surface 31 which extends transversely of the lengthwise direction of the pipe behind the opening thereof, so being able to influence the spreading pattern such that the delivery onto the field is as even as possible.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: October 22, 1991
    Assignee: Multinorm B.V.
    Inventor: Herbert J. Vissers
  • Patent number: 5052621
    Abstract: In a drive mechanism for a transportable sprinkler or the like, a hydraulic motor has a reduction gear, whose gear or gear wheels are outside the water distribution system in a separate gear chamber and are therefore dry. However, the gear chamber is so integrated into the casing of the hydraulic motor, that it is adjacent to a reversing chamber used for water distribution purposes and in which is located a reversing valve of a reversing device for the alternating reversing of the hydraulic motor in both rotation directions. The hydraulic motor is drive-connected by means of a driven pinion to a support and in the drive connection is arranged a self-engaging safety clutch. Between the reversing chamber and a rotor chamber connected axially thereto and to the gear chamber is provided a pressure-dependently operating bypass water distribution system with simple flap valves. Thus, high operational reliability with extremely compact construction of the hydraulic motor is obtained.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: October 1, 1991
    Assignee: Gardena Kress & Kastner GmbH
    Inventors: Johann Katzer, Wolfgang Lindermeir, Franz Lopic
  • Patent number: 5048757
    Abstract: A drive clutch mechanism for a pop-up oscillating irrigation sprinkler which serves to protect the internal components of the sprinkler against forceable rotation of the pop-up assembly by vandals, or others, and which when operated does not disturb the previous setting of the trip mechanism in the sprinkler.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: September 17, 1991
    Assignee: Garden America Corporation
    Inventor: Timothy O. Van Leeuwen
  • Patent number: 5044552
    Abstract: A supersonic coal water slurry atomizer utilizing supersonic gas velocities to atomize coal water slurry is provided wherein atomization occurs externally of the atomizer. The atomizer has a central tube defining a coal water slurry passageway surrounded by an annular sleeve defining an annular passageway for gas. A converging/diverging section is provided for accelerating gas in the annular passageway to supersonic velocities.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: September 3, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Frederick E. Becker, Leo A. Smolensky, John Balsavich
  • Patent number: 5042718
    Abstract: The invention relates to a solenoid-valve-controlled injection device, comprising pump and nozzle, for an air-compressing internal combustion engine having an electromagnetically actuatable control valve. The valve stem of the control valve co-operates with a control slide which is designed as an inertia piston and, via its control bore and a bore arrangement in the valve stem, establishes a connection between a fuel injection line leading to the nozzle and a return line in order to divide the injection into a temporally staggered pre- and main injection.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: August 27, 1991
    Assignee: Daimler-Benz AG
    Inventors: Horst Bergmann, Emil Bauerle
  • Patent number: 5039012
    Abstract: A straw for drinking liquids from an initially sealed container is provided with a pointed end for piercing an opening in the container. The straw is provided with a cross-sectional configuration which creates an unobstructed air passage into the container even when the opening formed by the straw is of no larger diameter than the end of the straw which is used to pierce the container. The straw may have an enlarged piercing head or recessed flutes extending longitudinally to assure creation and maintenance of the air passage.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: August 13, 1991
    Inventor: Koichi Inaba
  • Patent number: 5033679
    Abstract: The injector nozzle comprises a housing (1) with a conical seat (2) passing into a cylindrical channel (3) with atomizing holes (4). Installed in the housing (1) is a needle (5) with a shut-off truncated cone (6) which is connected, through the intermediate portion (8) of the needle (5), with a throttling element (7). The lateral surface (10) of the intermediate portion (8) of the needle (5) is located inside an imaginary cone (13) and the throttling edge (9) of the throttling element (7) is located at the surface of this cone (13) whose base is constituted by a surface confined by the shut-off edge (12) of the shut-off cone (6) and whose vertex angle (.alpha.) is 0.5-2.0 degrees greater than the vertex angle (62) of the conical seat (2). The throttling edge (9) is located on the level of the minimum diameter of the conical seat (2) and is formed by the line of intersection of the lateral surface (10) of the intermediate portion (8) of the needle (5) and the lateral surface (11) of the throttling element (7).
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: July 23, 1991
    Inventors: Vladislav I. Golev, Rostislav M. Mokhov, Alexandr S. Rusakov
  • Patent number: 5031834
    Abstract: A marking system for indicating the boundaries of an area that has been treated includes a storage tank for storing the liquid and the foaming agent that is fluidically separated from a foam tube. A mixing control element fluidically connects a compressor to the foam tube and connects the storage tank to the foam tube whereby the ratios and parameters associated with the formation of the marking foam can be varied. The system includes two marking foam dispensing nozzles.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: July 16, 1991
    Inventor: Virgil Simpson
  • Patent number: 5024385
    Abstract: A fuel supply apparatus comprising a housing having therein a passageway including a valve seat adapted to communicate with a combustion chamber, and a bore adapted to communicate with a source of fuel under pressure, a valve member including a valve surface and a portion and being movable relative to the housing between a closed position wherein the valve surface engages the valve seat so as to close the passageway to the combusion chamber and the portion extends a first distance into the bore, and an open position wherein the valve surface is spaced from the valve seat so as to open the passageway to the combustion chamber and the portion extends a second distance less than the first distance into the bore, and an arrangement for adjusting the rate of fuel flow past the portion.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: June 18, 1991
    Assignee: Outboard Marine Corporation
    Inventor: Jeffrey A. Olson
  • Patent number: 5016820
    Abstract: In a multi-hole fuel injector of the VCO type the holes are larger at their inner ends than their outer ends, i.e. they taper in some way, to achieve a bushy spray without making the wall of the nozzle too thin. They can best be formed by electro-erosion machining.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: May 21, 1991
    Assignee: Lucas Industries public limited company
    Inventor: David J. Gaskell
  • Patent number: 5014913
    Abstract: An air-freshening device including an air-freshening fluid container having a removable cap with a wick support. A fluid-absorbent medium has an exposed surface on the cap and a wick extends through the cap to the fluid-absorbent medium. An outer closure support for the container has a pair of adjustable closure half-shells. Each half-shell has an internal locking arm for engaging the flange of the cap for controlling the air freshener flow out of the device.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: May 14, 1991
    Assignee: Reckitt & Colman Inc.
    Inventors: Earl Hoyt, Manharbhai K. Patel
  • Patent number: 5014912
    Abstract: A displacing device for a swimming pool cleaner has a hollow housing with a cylindrical wall and end walls. Within the housing are two spaced partitions which divide the interior of the housing into three chambers. A first and second chamber have openings in the cylindrical wall with jet nozzles projecting therefrom. A ball is located in each of the first and second chambers which close off one opening at a time so that water then flows out of the or each other opening that is open. One end wall and the partitions each have an aperture in which a tube is slidable. The tube has holes so that water fed into the tube at one end flows through the tube and out through the holes into the first or the second chamber, depending on the position of the tube. The tube is moved up and down by an engine that does not form part of this invention. The outer end wall has a connector for connection to a source of pressurized water.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: May 14, 1991
    Assignee: Oakleigh, Ltd.
    Inventor: David A. Brooks
  • Patent number: 5014919
    Abstract: A hand-held shower head, commonly called a vegetable spray, for domestic sinks having a tubular handle member (1) connectd to the water supply via flexible piping. A jet breaking or aerating spray head of the shower is axially and slidably mounted on the tubular stem which creates a seal. This spray head is connected through an internal stick (8) to a valve element (9) which cooperates with a valve seat (2) that is in the tubular stem between the valve element and the spray head. A spring (12) is preferably placed between the spray head and a ledge (2) which forms the valve seat for the valve element. Preferably, the valve element (9) is a separate member from the connecting stem and has an undercut seat (10) for receiving a sealing gasket (11). The gasket (11) can be inserted into this undercut seat (10) when the valve element (9) is separated from the connecting stem (8), but cannot be taken out again when the connecting stem is fixed to the valve head.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: May 14, 1991
    Assignee: Masco Corporation
    Inventor: Alfons Knapp
  • Patent number: 5012983
    Abstract: A perforated plate that provides an improvement in a fuel injection valve that is used to inject fuel into the intake tube of a mixture-compressing internal combustion engine having externally supplied ignition. The perforated plate is secured on a nozzle body of a fuel injection valve, in which a tight-seat face is embodied. Cooperating with the tight-seat face is a valve needle, to which an armature is secured, which is actuated electromagnetically by a magnetic coil. The perforated plate is secured downstream of the tight-seat face, and is provided with opposite disposed elongated indentations each of which slope toward and discharge into a cylindrical hole in order to form fanlike streams that are ejected through the cylindrical hole.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: May 7, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Buchholz, Martin Maier
  • Patent number: 5012976
    Abstract: A fluid device tank cleaning apparatus having a stationary housing, an outer Tee-housing which rotates about a first axis and nozzle assembly rotatably mounted to the Tee-housing for rotation about a second axis. The stationary housing is provided with passageways for communication with the Tee-housing. The passageways are configured so as to provide a substantially constant cross sectional area to the outer of the Tee-housing.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: May 7, 1991
    Assignee: Sybron Chemicals, Inc.
    Inventor: Loren L. Loberg
  • Patent number: 5012980
    Abstract: The pressurized gas is supplied by two sleeves separated by a sprayer device forming a funnel. The narrow end of the funnel has a spraying head with, in the plane of symmetry (P) of the device, at least one slot through which the liquid flows. The pressurized gas passes through a series of openings provided on either side of the slot. A liquid supply tube is arranged parallel in relation to the wide end of the funnel and has openings through which the liquid flows directly or indirectly into the funnel and passes through the slot without any appreciable pressure.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: May 7, 1991
    Assignee: Bertin & Cie
    Inventors: Stephane G. J. Viannay, Bernard M. Roth, Solange M. V. Mirigay, Georges J. B. Chastang
  • Patent number: 5007586
    Abstract: A rotary sprinkler comprises a nozzle outputting a jet axially thereof; a rotor rotatably mounted with respect to the nozzle in alignment with the axial jet and having a surface formation impinged by the axial jet to deflect the jet laterally of the nozzle and to rotate the rotor; and a retarding device having a first surface rotatable with the rotor with respect to the nozzle, a second surface non-rotatable with respect to the nozzle, and a viscous liquid between the first and second surfaces; characterized in that the first surface of the retarding device is a cavity formed in a surface of the rotor opposite to that having the surface formation impinged by the axial jet, and that the second surface of the retarding device is carried by a pin non-rotatably mounted with respect to the nozzle and disposed within the cavity.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: April 16, 1991
    Assignees: Agroteam Consultants Ltd, Plastro-Gvat
    Inventor: Amir Cohen
  • Patent number: 5007585
    Abstract: A roadside spray apparatus having a spraying head with a plurality of nozzles mounted on the spraying head. The inclination of the spraying head is selectively adjustable to direct spray to a desired location. The nozzle means includes a plurality of independently operated nozzles oriented to spray side-by-side swaths at the side of a vehicle.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: April 16, 1991
    Inventors: Johnny L. Kubacak, Gary D. Byrd