Patents Examined by Arthur O. Hall
  • Patent number: 10639656
    Abstract: A crossover prevention valve for use in a multi-component fluid mixing and dispensing system includes a valve body defining at least two fluid passageways having respective one-way check valves at their outlet ends. A forward end of the valve body cooperates with an interior surface of a dispensing nozzle to define a mixing chamber for chemically reactive fluids prior to discharging the mixed fluids out of the dispensing nozzle. The crossover prevention valve does not permit reverse flow, thereby preventing clogs due to undesired intrusion of one reactant into the flow path of another reactant. Solidified reactants left in the mixing chamber are easily removed from the valve body, permitting the valve body to be reused even after sitting for extended periods.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 5, 2020
    Inventor: Gary M. Hammerlund
  • Patent number: 10618066
    Abstract: A spray head for a power sprayer configured to generate a continuous sheet-like water shield around a center stream of water. A water delivery device for use with a sink may produce a stream of water surrounded by a continuous shield of water.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 14, 2020
    Assignee: Delta Faucet Company
    Inventors: Michael Scot Rosko, John David Vogel, Patrick B. Jonte, Ryan Anthony Reeder
  • Patent number: 10619613
    Abstract: A nozzle hole of a nozzle plate is coupled to a fuel injection port of a fuel injection device via a swirl chamber and first and second fuel guide channels opened into the swirl chamber. The swirl chamber is formed by combining first and second elliptical-shaped recessed portions. The first fuel guide channel opens at a side of a short axis of the first elliptical-shaped recessed portion and a side of the short axis that does not overlap with the second elliptical-shaped recessed portion, and the second fuel guide channel opens at a side of a short axis of the second elliptical-shaped recessed portion and a side of the short axis that does not overlap with the first elliptical-shaped recessed portion. The first and second fuel guide channels have depths deeper than those of the swirl chamber and extend inside of the swirl chamber while gradually reducing cross-sectional areas.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 14, 2020
    Inventor: Koji Noguchi
  • Patent number: 10605409
    Abstract: Example implementations relate to Additive Manufacturing (AM) pressurization diffusers. An example diffuser includes an integral component configurable for receiving and diffusing pressurant. Particularly, the integral component includes multiple elements manufactured as a single-piece structure, including an inner filter, outer shell, and flange. The inner filter includes micro-diamond holes that enable pressurant received at an opening of the inner filter to diffuse out of the inner filter and subsequently through holes positioned in a shell surface of the outer shell. The flange can position the diffuser such that the opening of the inner filter is in pressurant communication with a pressurant source (e.g., opening of a tank) enabling the diffuser to receive and diffuse pressurant in a predefined pattern.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 31, 2020
    Assignee: The Boeing Company
    Inventors: Christopher C. Veto, Martin E. Lozano, Victor John Barackman, Gary D Grayson, Scott K Oechsle, Alfredo Lopez
  • Patent number: 10602735
    Abstract: An apparatus (10) comprises a water storage tank (14), a heater (16), a pump (38) and an outlet duct (70) to convey heated water to a plurality of lances (24) through hoses (22). The heater (16) is arranged to heat the water in at least two successive stages (66, 67), to an intermediate and then to a final temperature, at least the second stage (67) of the heater being activated in pulses, the frequency and/or duration of the pulses being adjustable to control the resultant temperature. Foaming agent is introduced (18, 40) into the water. Upstream of each hose (22) is a diversion valve (85) connecting to a water return circuit (54) leading back to the water storage tank (14); and the water return circuit (54) includes a heat exchanger (55, 56). The heater (16) may be liquid fuelled. The apparatus can be mobile, for example on a motor-vehicle (12), and it enables a number of people to control weeds separately, using separate lances (24), from the same apparatus (10).
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 31, 2020
    Assignee: Weeding Technologies Ltd.
    Inventors: David Swan, Brian Palmer
  • Patent number: 10595458
    Abstract: A powered hand-held spreader device is disclosed that has a handle that allows a user to grip and hold the device with one hand. The spreader includes an adjustable shutter, controlled by a rotary dial, to allow for distribution of a range of different granular products that require different flow rates for distribution. The granular product is contained in a hopper. The product can be distributed over various types of terrain, including, but not limited to, lawns, gardens, and paths. The spreader is driven by an electric motor actuated by a trigger. A spinning rotor plate distributes the granular product fed from the hopper. A trigger lock is optionally available to lock the trigger in the “on” position during use and to prevent actuation when the trigger is in the “off” position. An adjustable side deflector optionally can be used to control the distribution pattern of the granular product.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: March 24, 2020
    Assignee: OMS Investments, Inc.
    Inventors: Paul E. Hsu, Paul M. Havlovitz, Ryan R. Berger, Chris W. Cicenas, Daniel F. Wisniewski, Johannes Hertrich
  • Patent number: 10589301
    Abstract: A high-volume low-pressure spray system includes a hose disposed between a compressor and a spray gun. The hose acts as an accumulator when the spray gun is deactivated. A check valve is disposed in a fitting connecting the hose to the compressor. The check valve includes a spring that applies a nonlinear force to a downstream end of a valve member, such that the valve member tips open in response to the pressure differential, providing a variable flowpath opening through the check valve.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 17, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: James M. Dalton, Brian M. Mulgrew
  • Patent number: 10584670
    Abstract: A nozzle hole of a nozzle plate is connected to a fuel injection nozzle of a fuel injection unit through a swirl chamber and first and second fuel guide grooves opened to the swirl chamber. The swirl chamber is an oval recess provided with the nozzle orifice in its center. A first fuel guide groove is opened to one end side of a major axis of the oval recess, and a second fuel guide groove is opened to the other end side of the major axis of the oval recess. The first and second fuel guide grooves are formed such that the same amount of fuel flows to the swirl chamber. The same amount of fuel flowing from the first and second fuel guide grooves to the swirl chamber is guided to the nozzle orifice at the same time while revolving inside the swirl chamber in the same direction.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: March 10, 2020
    Assignee: Enplas Corporation
    Inventor: Koji Noguchi
  • Patent number: 10577783
    Abstract: The element comprises: a hollow body; a receptacle (40) for receiving a cosmetic product, housed in the hollow body; a conduit (42) for supplying water into the receptacle (40); a nozzle (50) for dispensing the mixture of water and cosmetic product from the dispensing element. The element comprises an inner water dispensing nozzle (44), connected to the water supply conduit (42), the inner nozzle (44) protruding into the receptacle (40) to define a chamber (46) for mixing water and the cosmetic product contained in the receptacle (40).
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: March 3, 2020
    Assignee: L'OREAL
    Inventors: Céline Farcet, Laurent Gilbert, Ronan Delisle
  • Patent number: 10576479
    Abstract: A net water outlet device includes a main body and an outlet cover plate. The outlet cover plate is disposed at one end of the main body, the other end of the main body is an inlet end. The outlet cover plate is disposed with a first outlet hole group and a second outlet hole group arranged concentrically; therein, the outlet direction of the first outlet holes are configured so that: the axis of the outlet cover plate projects to the circumference of each first outlet hole, making the axis of the outlet cover plate and the tangent line of the circumference of each first outlet hole jointly define a first plane, the outlet direction of the first outlet holes are in the first plane, forming a first intersection angle with the projection of the axis of the outlet cover plate.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: March 3, 2020
    Inventors: Yongchuan Cai, Donghai Chen, Mingfu Zhang, Wenxing Chen
  • Patent number: 10569113
    Abstract: A blow off cap and nozzle apparatus includes a nozzle having a tip with an aperture covered with a sealing membrane held in position over the nozzle aperture by a retaining device, so that a seal is provided for preventing ingress of contaminants into the nozzle when not in use, and the sealing membrane becomes dislodged from the nozzle when use of the nozzle commences.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: February 25, 2020
    Inventors: Sean Morgan, Stuart Morgan
  • Patent number: 10556246
    Abstract: The liquid ejecting device uses pressurized gas to eject liquid as a spray of fine particles and is provided with internal gas-flow passageway to supply pressurized gas, and a nozzle section with a slit-shaped liquid ejecting opening to discharge liquid. The nozzle section is near the end of the an elongated main unit of the liquid ejecting device, and gas jet openings to discharge pressurized gas are established between inclined nozzle surfaces and sidewalls of the main unit. The liquid ejecting opening is connected with liquid-flow passageway and the gas jet openings are connected with the gas-flow passageway. Viewed in cross-section, the inclined nozzle surfaces are formed such that their extensions intersect above the liquid ejecting opening on a line extending from the liquid ejecting opening, and pressurized gas is discharged as jets along the inclined nozzle surfaces to intersect in a manner that sandwiches the liquid in between and breaks-up the liquid-flow to produce a spray of fine particles.
    Type: Grant
    Filed: March 23, 2013
    Date of Patent: February 11, 2020
    Assignee: GF CORPORATION
    Inventors: Tomohisa Shimada, Sadaki Takai
  • Patent number: 10549135
    Abstract: An exemplary fire suppression sprinkler includes a housing (22) that establishes a flow path for discharging fire suppression fluid. A water seat (28) is configured to block the flow path. A polymer seal (30) is supported within the housing (22) and engages the water seat (28) for sealing an interface between the flow path and the water seat (28). A spring member (40) biases the polymer seal (30) into engagement with the water seat (28).
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 4, 2020
    Inventors: Jarmo Helasuo, Arto Huotari
  • Patent number: 10539105
    Abstract: A fuel injector may include a fuel injector body having a central longitudinal axis, a plate element for coupling the fuel injector to a fuel injector cup, a snap ring and a spring element is specified. The snap ring is operable to block a movement of the fuel injector body relative to the plate element in a first direction of the central longitudinal axis. The spring element is operable to bias the plate element in a second direction of the central longitudinal axis opposing the first direction of the central longitudinal axis to prevent a movement of the plate element relative to the fuel injector body during coupling to the fuel injector cup.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: January 21, 2020
    Inventors: Giandomenico Serra, Alessio Cerrai, Mose Gado
  • Patent number: 10532236
    Abstract: A fire protection method includes providing a plurality of pendent control mode specific application extended coverage fire protection sprinklers as components of a fire protection sprinkler system for a storage area defined by a storage height of at least 25 feet and a building height of at least 30 feet. Each sprinkler has a thermally responsive element, a deflector, and a K-factor of at least 25.2 gpm/(psi)1/2, and is connected to a piping network at a height greater than the storage height. When each sprinkler is activated, a fluid is supplied to the sprinkler from the piping network at a pressure of at least 30 pounds per square inch, and is delivered to a coverage area of greater than 110 and up to and including 196 square feet per sprinkler. A design operating area of the sprinkler system is up to six sprinklers or 1200 square feet.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: January 14, 2020
    Assignee: The Reliable Automatic Sprinkler Co., Inc.
    Inventor: Oliver S. Pahila
  • Patent number: 10507480
    Abstract: Apparatus for generating a mist comprising a conduit having a mixing chamber and an exit; a transport nozzle in fluid communication with the said conduit, the transport nozzle being adapted to introduce a transport fluid into the mixing chamber; a working nozzle positioned adjacent the transport nozzle intermediate the transport nozzle and the exit, the working nozzle being adapted to introduce a working fluid into the mixing chamber; the transport and working nozzles having an angular orientation and internal geometry such that in use interaction of the transport fluid and working fluid in the mixing chamber causes the working fluid to atomize and form a dispersed vapor/droplet flow regime, which is discharged as a mist from the exit, the mist comprising working fluid droplets having a substantially uniform size.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: December 17, 2019
    Assignee: Tyco Fire Products LP
    Inventors: Marcus Brian Mayhall Fenton, John Gervase Mark Heathcote, Alexander Guy Wallis
  • Patent number: 10500596
    Abstract: A combination showerhead with push button switching comprises a fixing holder, two showerheads and a switching mechanism. The first showerhead is mounted to the fixing holder; the fixing holder comprises an inlet passage connected to a supporting arm and two diversion passages connected to two showerheads respectively. The switching mechanism comprises a diversion plate, a valve core, a push button and an elastomer. The diversion plate is connected to the fixing holder movably and cooperates with the inlet and diversion passages to switch waterways by rotating a predetermined angle. The valve core is slidably connected to the fixing holder and connected to the diversion plate to drive the diversion plate to rotate by back-and-forth sliding. The push button is movably connected to the fixing holder and connected to the valve core to drive the valve core to slide by a user's pushing.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 10, 2019
    Inventors: Fengde Lin, Mingfu Zhang, Wenxing Chen
  • Patent number: 10493482
    Abstract: An angle adjustable pistol-type watering nozzle includes a handle, a nozzle head, a control member and a valve. The nozzle head is pivotable relative to the handle by two respective pivotal portions of the nozzle head and the handle. The valve is located in the pivotal portions and is driven by the control member to align the inlet or the seal member of the valve with the passage of the handle to control the watering feature of the watering nozzle. The watering nozzle is functioned normally to eject water from the nozzle head at any angle that the nozzle head is pivoted relative to the handle.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 3, 2019
    Inventor: Ho Chin Chen
  • Patent number: 10486175
    Abstract: A paint spraying machine includes an apparatus for containing and removing the leakage of paint drops from a rotating joint, without the risk of damaging the article being sprayed, and thus without the need for downtime to replace sealing elements. The rotating joint includes a hollow shaft for distributing paint, a drum including a plurality of flanges that define separate chambers for different paints, a plurality of seals for separating the different paints in the different chambers which together form a high-pressure circuit, a low-pressure circuit to refrigerate the seals, improve their sealing and possibly intercept leaking paint, and a plurality of centering rings provide for correct assembly of the seals and the correct alignment of different flanges. The rings are hollow, and allow for the passage of the refrigerating/cleaning liquid under low pressure.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: November 26, 2019
    Assignee: Cefla Societa' Cooperativa
    Inventors: Cristian Pungetti, Stefano Chiarini
  • Patent number: 10486176
    Abstract: A dosing dispenser system and a dosing dispenser include a rotatable control configured to allow a user to select a desired mixing ratio for a product contained in a container attached to the dosing dispenser with a transport medium, such as water, flowing through the dosing dispenser.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 26, 2019
    Assignee: Silgan Dispensing Systems Corporation
    Inventor: Steven A. Sell