Patents Examined by Kevin Patrick Weldon
  • Patent number: 4798339
    Abstract: A submerged jet injection nozzle includes a nozzle exit disposed downstream of an orifice section and greater in diameter than the orifice section. The occurrence of cavitation due to a fluid injection is positively promoted so that the crushing effect of the cavitation is utilized fully and the decay in the energy of the injected fluid is reduced thereby increasing the work done by the submerged fluid injection.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: January 17, 1989
    Assignee: Sugino Machine Limited
    Inventors: Kenji Sugino, Katsuya Yanaida, Hiroshi Sugino, Masao Nakaya, Nobuo Nishida, Kensaku Eda
  • Patent number: 4787560
    Abstract: A portable liquid sprayer has a tank adapted to contain a supply of liquid received through a fill opening, an a pump for pressurizing liquid contained therein. A first spraying mechanism includes a first control valve carried on the tank and a first nozzle removably connected to the tank. A second spraying mechanism and a second nozzle form part of a wand assembly located at one end of a flexible hose. The hose has a coupling at the opposite end adapted to be interchangeably connected to the tank in the place of the first nozzle. The first control valve has a valve seat included as an integral component of the first nozzle and without which the first control valve is incapable of preventing the flow of pressurized liquid therethrough from the tank.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: November 29, 1988
    Assignee: Blue Mountain Products Inc.
    Inventor: Sal G. DeYoreo
  • Patent number: 4787558
    Abstract: An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the preset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: November 29, 1988
    Assignee: Rain Bird Consumer Products Mfg. Corp.
    Inventors: Timothy C. Sexton, George H. Lockwood, David E. Robertson, Joseph D. Mason, Mark J. Mattson, Robert W. Patterson
  • Patent number: 4784325
    Abstract: A rotating stream sprinkler is provided with an improved spray head for sweeping one or more outwardly projected water streams through a prescribed arcuate spray path, wherein the spray head is adapted for enhanced self-flushing operation to prevent accumulation of grit and the like which could otherwise impair sprinkler performance. In the preferred form, the spray head is mounted at the upper end of a pop-up stem for movement to an elevated spraying position upon supply of water under pressure to the sprinkler. The water flows to the spray head and normally pressure-loads a plurality of valve balls onto a respective plurality of seats to prevent water flow through the seats to associated nozzle passages. A drive assembly rotates the spray head relative to a nonrotating cam positioned to lift one or more of the valve balls from their respective seats to permit outward discharge of one or more water streams through the nozzle passages, within the limits of the prescribed arcuate path.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: November 15, 1988
    Assignee: Rain Bird Consumer Products Mfg. Corp.
    Inventors: Samuel C. Walker, George H. Lockwood, Kenneth V. McCarthy, Raymond P. Feith
  • Patent number: 4784330
    Abstract: A high pressure spraying gun has a jet pipe, a pressure water supply element, two trigger levers for right-handed and left-handed actuation, and only one blocking valve arranged to selectively block and to release pressure water through flow through the jet pipe or through the pressure water supply element and including a valve body, a spring which biases the valve body in a first direction, and a rocking member having two ends spaced from one another in a second transverse direction, so that the blocking valve can be opened only under the simultaneous action of two trigger levers on both ends of the rocking member.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: November 15, 1988
    Inventor: Paul Hammelmann
  • Patent number: 4779801
    Abstract: A special, lightweight, easy-to-use apparatus and effective smoke abatement process are provided to efficiently remove smoke and gases from a burning building to minimize smoke damage, asphyxiation, and injury, as well as to accommodate safer quicker exiting of the building's occupants and better visibility for the firemen. The apparatus has a water spray nozzle which is positioned to face away from the fire to create a suction which draws the smoke and gases out of the burning building.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: October 25, 1988
    Inventor: James W. O'Donnell
  • Patent number: 4779800
    Abstract: An above-ground watering system for a lawn or garden plot is disclosed. The two ends of a length of flexible transparent PVC hose are connected to opposite ends of a poly fitting. The center tap of the poly fitting connects via a reducer to a garden hose connector. The transparent hose is perforated at intervals along its length, and stakes are used adjacent the perforations to hold the hose in place on the ground. When water is introduced from a standard garden hose which is connected to the hose connector, the water passes through the reducer and the fitting to enter the two ends of the transparent hose. Water exits the transparent hose via the perforations. The stakes comprises loops which securely grip the hose to hold the adjacent perforations in desired orientations to secure the desired spraying pattern of coverage for the plot.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: October 25, 1988
    Inventor: James R. Tuomi
  • Patent number: 4778109
    Abstract: An adjustable two-dimensional nozzle is disclosed in which simplified control means are located away from the flow of gasses through the nozzle. The nozzle includes a movable frame located outside of fixed sidewalls and has pivotally attached thereto a pair of upstream or converging nozzle flaps. Upstream edges of the upstream flaps are attached to the movable frame such that the flaps pivot about axes extending substantially perpendicular to the longitudinal axis of the nozzle. Downstream or diverging flaps are attached to the downstream edges of the upstream flaps such that these flaps also pivot about axes extending substantially perpendicular to the longitudinal axis of the nozzle. A cam member extends between each of the movable frames and each downstream flap to control the angular variations of the flaps during movement of the frame.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: October 18, 1988
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation (SNECMA)
    Inventors: Gerard E. A. Jourdain, Marc G. Loubet, Jean-Michel Payen
  • Patent number: 4778107
    Abstract: An assembling method of a fuel injection valve for fuel injection into an internal combustion engine, the fuel injection valve including a cylindrical valve body having a fuel passage therein and a through-hole made in a direction of the axis thereof and a cylindrical nozzle coupled to the valve body and having a plurality of injection holes for dividing the fuel exited from the through-hole into a plurality of parts and for injecting the divided fuel parts into the engine. The assembling method comprises the steps of coupling the nozzle to the valve body, rotating the valve body relative to the nozzle, and stopping the rotation of the valve body when the through-hole takes a desirable position relative to the injection holes and fixedly securing the nozzle to the valve body.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: October 18, 1988
    Assignee: Nippondenso Co., Ltd.
    Inventors: Fumio Kojima, Tateshi Katho, Tomihiko Nagata, Sadao Sumiya, Shinzo Ito, Takumi Noma, Takashi Hieda
  • Patent number: 4777345
    Abstract: An insecticide dispenser capable of setting off a charge of insecticide to fumigate a room and then automatically shutting itself off before the completion of the dispensing of the charge of the insecticide, whereby the dispenser can be safely left unattended during the fumigation of a room. The dispenser includes a container for the insecticide and a fusible member that will break during the volatilization of the insecticide thereby to break the electrical circuit and turn off the power supply.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: October 11, 1988
    Assignee: GTE Products Corporation
    Inventor: Steven T. Manchester
  • Patent number: 4773593
    Abstract: A coolable thin metal sheet incorporated in an exhaust nozzle for a gas turbine powered aircraft includes a hot surface, a cool surface and a plurality of triangular sloped depressions which project through the cold gas side of the sheet. Each depression includes a gradually sloped essentially triangular surface which extends gradually in the direction of flow, from a deep, flat faced apex to a flush base, with the apex providing a flat surface perpendicular to the sloped surface. A hole, drilled through the apex admits cooling air which forms a film on the hot gas surface. Utilizing a plurality of such depressions provides precise control of the quantity and direction of cooling gas admitted while allowing use of the thinnest material meeting mechanical requirements, providing optimized film cooling while minimizing nozzle weight.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: September 27, 1988
    Assignee: United Technologies Corporation
    Inventors: Thomas A. Auxier, Kenneth W. Stalker, Anthony M. Zimmerman
  • Patent number: 4773592
    Abstract: A high pressure cleaning equipment will be described which can be operated by either hot water or superheated steam with the addition of cleaning chemicals as required. For increased safety of operation of the equipment, a safety valve is additionally provided together with, as required, a steam valve, which in the case of steam operation, directs only a noticeably reduced amount of cleaning fluid per unit of time to a heat exchanger which converts the cleaning fluid to steam.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: September 27, 1988
    Assignee: 501 Wap Reinigungssysteme GmbH & Co.
    Inventor: Guido Oberdorfer
  • Patent number: 4771946
    Abstract: Disclosed are modified spray guns, particularly electrostatic spray guns, for implementation of the vaporous amine catalyst spray method disclosed in U.S. Pat. No. 4,517,222. In particular, the present invention broadly is directed to a spray gun for spraying atomized liquid, e.g. vapor permeation curable paint, with the assistance of a vaporous amine flow via an amine flow path established in the spray gun wherein the improvement comprises a control apparatus actuable in the absence of the vaporous amine flow to cause a heated non-amine gas, preferably heated air, to flow through and purge the amine flow path within the gun for maintaining a desired flow path temperature adequate for suppressing amine condensation in the flow path. The spray gun can be a hand spray gun or an automated spray gun utilizing air atomization or mechanical atomization, operating under electrostatic spray conditions if desired.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: September 20, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Timothy Y. Moy, Jeffery W. Radcliff
  • Patent number: 4770345
    Abstract: A very simple system to automatically control the flow of irrigation water. The stem of a water shutoff valve is controlled by a balance beam having two arms extending perpendicular to the axis of rotation of the valve stem. The angle between the two arms is about 135 degrees. At the end of the second arm is a water bucket. At the end of the first arm is a counter weight. When the first arm is horizontal, the water bucket is elevated and the valve is open. The water bucket collects a small portion of the irrigation water flow. When the bucket is substantially full, the second arm moves to a horizontal position, the counterweight is elevated and the valve is closed.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: September 13, 1988
    Inventors: John R. Ross, Jr., Davorin D. Kapich
  • Patent number: 4768713
    Abstract: A grove sprayer includes a wheeled vehicle having at least one blower thereon blowing into a cowling for directing the air to the side of the sprayer onto the grove foliage. A plurality of spray nozzles are located in the cowling openings in position to cover a plurality of spray zones. A plurality of foliage sensors are positioned to cover a plurality of spray zones for detecting when foliage is located within each spray zone. The foliage sensors actuate each spray nozzle responsive to foliage being sensed within a spray zone, so that only those spray nozzles are actuated to spray foliage. The foliage sensors actuate the spray nozzles after a measured delay to compensate for the length of the moving vehicle. A speed sensor varies the liquid feed to the nozzles and provides a signal by which the delay is determined between the foliage sensor positions and the nozzle positions of the moving vehicle.
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: September 6, 1988
    Inventor: Bert E. Roper
  • Patent number: 4768714
    Abstract: A pressure vessel for a backpack agricultural sprayer is mounted within a container of the sprayer and connected to the sprayer pump so that liquid from the container is forced under pressure into the pressure vessel for a spraying discharge therefrom. Leakage of liquid past the piston of the sprayer pump is contained by a leak proof diaphragm in a diaphragm chamber which is connected by a conduit to the interior of the sprayer container. The diaphragm is connected to the piston to be operated therewith thus providing two separate but simultaneously acting pumps. The first pump is the piston pump for pressurizing the liquid for spraying discharge. The second pump is the diaphragm which forces liquid back and forth between the container and the diaphragm chamber in a high velocity stream which agitates the contents as the stream is projected into the container interior.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: September 6, 1988
    Inventor: Pedro W. Luchsinger
  • Patent number: 4767055
    Abstract: A convergent/divergent gas turbine engine exhaust nozzle having reverse thrust capability includes a concentric flap (22) and arc valve (36) pivotable about a common axis (34). A method and linkage (48) schedule the opening of the valve (36) in response to rotation of the flap (22) into a blocking position with respect to the normally aftward flow of the exhaust gas (12). The arc valve (36) is accelerated by the linkage (48) to full opening speed prior to unsealing an alternate, thrust reversing flow passage (38).
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: August 30, 1988
    Assignee: United Technologies Corporation
    Inventor: Eric J. Ward
  • Patent number: 4765539
    Abstract: An apparatus and process for spraying liquids wherein liquid emerging from a sprayhead is subjected to an electrical field sufficiently high for the liquid to be drawn from the sprayhead in the form of one or more filaments. The filament or filaments become unstable and subsequently break up into droplets. A stream of gas is caused to flow through the region of the high electrical field, the gas flowing in a direction parallel or substantially parallel with the direction in which the liquid emerges from the sprayhead. Droplets are thus removed from the region and a built-in in space charge is reduced.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: August 23, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Timothy J. Noakes, Nevil E. Hewitt, Arend L. Grocott, Philip C. W. Franks
  • Patent number: 4763731
    Abstract: A dry bay (4) in an aircraft wing (2) is filled with a large number of relatively small, preferably spherical, containers (12). Sealed inside each container (12) is a noncorrosive gaseous fire extinguishant (14). A number of containers (12) are opened by being broken by an impact force or melted or burst by the heat of a fire. Extinguishant (14) is released from the opened containers (12) to suppress a fire. The packing density of containers (12) in dry bay (4) may be varied by varying the size and/or shape of containers (12). Containers (12) may be introduced into dry bay (4) by pressure injection or by gravity. Containers (12) may be removed from dry bay (4) to allow maintenance and repair activities by allowing containers (12) to drop out of dry bay (4) into a suitable receptacle or by drawing containers (12) out of dry bay (4) with a vacuum powered device.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: August 16, 1988
    Assignee: The Boeing Company
    Inventors: Robert E. Adams, A. Fredric Grenich, Frederick F. Tolle
  • Patent number: 4763844
    Abstract: An agricultural spreader comprises distribution members (11, 12) which rotate to eject material such as fertilizer. The spreader can tilt to one side or the other so as to reduce the spreading distance on one side. This facility enables the spreader to be driven on a field along the same tracks as other agricultural machinery while avoiding waste of material at the edges of fields. Other embodiments utilize braking members which are movable into the path of ejected material to reduce its kinetic energy and consequently its spreading distance.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: August 16, 1988
    Assignee: C. Van der Lely N.V.
    Inventors: Cornelis van der Lely, Ary van der Lely, Cornelis J. G. Bom