Motor Or Fluid Pressure Operated Valving Means Patents (Class 239/412)
  • Patent number: 10302058
    Abstract: A metering system for a fuel atomizer includes a housing having a fuel inlet and an oxidizer inlet arranged coaxially, and an oxidizer metering device having a plurality of oxidizer channels, an oxidizer flow controller, and a fuel metering device. The oxidizer channels are spaced apart circumferentially in the housing and are arranged angled in at least one of a radially inward direction and a tangential direction to create a swirl of oxidizer flow in a mixing chamber of the fuel atomizer. The oxidizer flow controller is configured to control flow of oxidizer from the oxidizer inlet to the plurality of oxidizer channels. The fuel metering device is configured to control fuel flow from the fuel inlet to the mixing chamber.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: May 28, 2019
    Assignee: ENGINETICS, LLC
    Inventors: Joseph Lull, Justin Warner
  • Patent number: 9550204
    Abstract: A dispensing module and method of dispensing an adhesive includes a dispenser body assembly having a liquid supply passage, a nozzle member having a liquid passageway, a valve element, and a valve seat. The liquid passageway includes a discharge passageway defining an outlet, a first converging surface, a bore, and a shoulder positioned between the first converging surface and the bore. The valve element extends along an axis within the liquid passageway and has a bulbous end portion movable along the axis between an open position and a closed position. The bulbous end portion has a valve needle smaller than the bore to inhibit obstruction to the discharge passageway for adhesive flowing thereto. The valve seat seals against the bulbous end portion in the closed position such that a region of the valve needle projects into the discharge passageway for inhibiting clogging of the adhesive proximate to the outlet.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 24, 2017
    Assignee: Nordson Corporation
    Inventor: Leonard J. Lanier
  • Patent number: 9180840
    Abstract: A camera washing device has an air pump, a wash water tank storing wash water, an injection nozzle with an injection part, a junction joint having a high-pressure air passage and a wash water passage, and an electromagnetic valve. The air pump generates and supplies high-pressure air to the high-pressure air passage. When the control part instructs the electromagnetic valve to be switched to an open state, the wash water and the high-pressure air are mixed in the junction joint to generate water particles. The generated water particles are supplied to the injection nozzle. When the electromagnetic valve is switched to the open state after injecting the high-pressure air only to a lens of a rear camera, the injection part injects the water particles to the lens of the camera.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: November 10, 2015
    Assignee: DENSO CORPORATION
    Inventors: Hitoshi Tanaka, Muneaki Matsumoto, Norifumi Matsukawa
  • Patent number: 8827183
    Abstract: A hand-held paint spray gun apparatus having a paint reservoir on the gun and reciprocating piston driven by a motor in the hand-held paint spray gun, the gun having a multiple orifice spray tip with a pair of apertures emitting generally fan or cone shaped overlapping spray patterns. A locking nut retains the cylinder to a motor frame and a frame carries the spray tip, with one of the nut and frame having a corrugated surface and the other of the locking nut and the spray tip frame having a plurality of protrusions engaging the corrugated surface. The protrusions are spaced apart circumferentially from each other and with respect to the spacing of a plurality of troughs and crests in the corrugated surface such that only one protrusion at a time is nested in a trough of the corrugated surface.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 9, 2014
    Assignee: Wagner Spray Tech Corporation
    Inventor: Michael B. Jones
  • Publication number: 20140239096
    Abstract: A pneumatically powered foam sprayer is provided. The foam sprayer includes a spray hose having a spray nozzle, a trigger assembly proximate the spray nozzle, and a pressure-actuated valve responsive to the trigger assembly. An air conduit extends between the pressure-actuated valve and an opening in the trigger assembly. Obstructing the opening with a hand, a finger or a thumb creates a change of air pressure within the air conduit and actuates the pressure-actuated valve to selectively allow the supply of foam into the spray hose. The air conduit may extends longitudinally through an interior portion of the spray hose, or along an exterior portion of the spray hose, and can include a laminar, chemical-resistant outer surface. An internal pump is powered by compressed air through the pressure-actuated valve, and the spray nozzle remains open both during and between uses to prevent the accumulation of pressurized foam within the spray hose.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: INNOVATIVE CLEANING EQUIPMENT, INC.
    Inventors: Nicholas D. Jacques, Dean Louwsma
  • Publication number: 20130341425
    Abstract: A shower head is configured to receive a first fluid conduit and a second fluid conduit, where the shower head includes a mixer valve within a portion thereof that is configured to receive a first fluid from the first fluid conduit and a second fluid from the second fluid conduit and to output the first fluid or the second fluid or a blend the first and second fluids to a shower head outlet.
    Type: Application
    Filed: March 14, 2013
    Publication date: December 26, 2013
    Inventor: Kevin T. Peel
  • Publication number: 20130277447
    Abstract: An injection system includes a plurality of actuators. Each of the actuators is configured to move one or more portions of a center body of the fuel injector. The system also includes a controller configured to control each of the plurality of actuators individually to change a flow rate or a direction of output of a mixture of fuel and air from an output of the center body of the fuel injector.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Biju Nanukuttan, Herbert Chidsey Roberts, III
  • Patent number: 8297531
    Abstract: A solvent piston 22 shuttles between first and second positions. In the first position, high pressure air applied to the rear 22a of the solvent piston 22 closes a solvent bore 24 around the solvent piston 22 and prevents passage of solvent into the mix chamber 26. In the second position, high pressure air is applied to the front 22b of the solvent piston 22 causing it to retract slightly thereby uncovering the solvent bore 24, closing off the solvent inlet 28 and allowing a slug of solvent to mix with the purge air 32 and pass from the solvent outlet 30 into the mix chamber 26. The solvent is either self contained in the applicator or plumbed eternally to the gun.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: October 30, 2012
    Assignee: Graco Minnesota Inc.
    Inventors: Richard D. Anderson, Joseph E. Tix, Jeffrey N. Velgersdyk, Douglas S. Ryder, Christopher J. Pellin, Mark T. Weinberger
  • Patent number: 8042750
    Abstract: 1. Release agent spray device for a casting machine. 2.1. The invention relates to a release agent spray device for a casting machine, having one or more spray nozzles (1) and discharge means for the controlled discharge of release agent from the respective spray nozzle. 2.2. According to the invention, the discharge means comprise at least one dosing unit (3) which is assigned to at least one spray nozzle (1) and which defines, in advance, a release agent quantity to be discharged by the at least one associated spray nozzle in an impending spray burst and which provides said release agent quantity, separated from a release agent supply, for discharge in the impending spray burst. 2.3. Use for example for metal pressure-die-casting machines.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: October 25, 2011
    Assignee: Oskar Frech GmbH & Co. KG
    Inventors: Norbert Erhard, Hubert Pschenitschni
  • Patent number: 8002203
    Abstract: A fire fighting nozzle for extinguishing industrial scale fires including improved automatic pressure regulating features, enhanced educting features including central and peripheral channeling for foam concentrate, and combining with a capacity to throw dry chemical. Improved pressure regulating features include a double acting baffle and preferably a relief valve. Method and apparatus for automatically metering an additive such as foam concentrate into a conduit having a variably flowing fire fighting fluid therethrough, the conduit including a discharge device, proximate or downstream.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 23, 2011
    Inventors: Dennis W. Crabtree, Duane J. Brinkerhoff, Dwight P. Williams
  • Patent number: 7789325
    Abstract: A spray device is provided that includes a body portion having a fluid passageway therein. A spray nozzle is affixed to the body portion. The spray nozzle includes a discharge orifice for directing fluid from the fluid passageway in the body portion in a predetermined spray pattern. A valve needle is supported in the body portion and spray nozzle for movement between an open position for permitting fluid discharge through the discharge orifice and a closed position for preventing fluid discharge through the discharge orifice. A control piston assembly is provided for controlling movement of the valve needle. The control piston assembly is movably supported in the body portion and is non-mechanically coupled to the valve needle by magnetic attraction.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: September 7, 2010
    Assignee: Spraying Systems Co.
    Inventor: Michael S. O'Brien
  • Patent number: 7497387
    Abstract: A system for spraying and a method for making same. The system for spraying may comprises a sprayer having a sprayer body comprising a spray fluid passageway extending longitudinally through the sprayer body. The sprayer may also have a spray fluid inlet fitting to enable a hose operable to convey a spray fluid to be coupled to the sprayer body. In addition, the sprayer may also have a first air fitting to enable a first hose operable to convey pressurized air to be coupled to the sprayer body to trigger the sprayer to spray the spray fluid. The sprayer may have a second air fitting to enable a second hose operable to convey pressurized be coupled to the sprayer body to atomize the spray fluid. The spray fluid inlet fitting, the first air fitting, and the second air fitting are angled at an acute angle relative to the spray fluid passageway extending longitudinally through the sprayer body.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: March 3, 2009
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher L. Strong
  • Patent number: 7472841
    Abstract: A spray head is described for spraying the molds in pressure casting machines, and in it spray nozzles are mounted on bars equipped with supply passages, which form units which can be placed together. To fit these bar units together, coupling elements in the form of cylindrical pins provided with passages are provided, which are provided with recesses having sloping planes which are engaged by the conical tips of Allen screws and thus produce a clamping together of adjacent bar units. The coupling elements are provided at both end faces with sealing rings and their bore aligns with the passages in the bars. Through the use of angle pieces media supply bars bearing spray nozzles can be joined together at any angle to one another.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: January 6, 2009
    Assignee: Oskar Frech GmbH + Co. KG
    Inventors: Norbert Erhard, Hubert Pschenitschni
  • Patent number: 7448555
    Abstract: Spraying tool for foundry molds with spraying nozzles, which can be controlled separately for several media per spraying nozzle and/or for a spraying nozzle per medium.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: November 11, 2008
    Assignee: Wotec Automationssysteme GmbH
    Inventor: Rudolf Wollin
  • Publication number: 20080272211
    Abstract: The invention relates to an apparatus for the gas treatment of mains water in the inflow of a domestic fitting (16), having a connection (12) for a gas source, and having a device (8) for supplying the gas into the mains-water stream. The invention provides the following features: a. the apparatus is designed as a unit which is capable of forming part of the substructure and has a watery inlet, a gas inlet and an outlet for the water or gas-treated water, b. it has a pressure sensor (4) which is assigned to the water main and is designed for emitting a first control signal when the water pressure drops below a predetermined threshold value, c. it has a control unit which is intended for releasing the gas supply and is designed for activating the device for supplying the gas into the mains-water stream as soon as it has received the first control signal from the pressure sensor and an additional, second control signal.
    Type: Application
    Filed: March 5, 2008
    Publication date: November 6, 2008
    Applicant: DS Produkte Dieter Schwarz GmbH
    Inventors: Michael Rann, Joakim Trumpler
  • Patent number: 7032842
    Abstract: In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of the control piston is sealingly guided, while its second end lies with a sealing ring before a chamber fed with parting agent. In the case of the application of control air the sealing ring is shifted out of its cylindrical section 26 into the chamber, so that the feed of parting agent to the spray nozzle is released. If the control air is shut off, then the sealing ring closes the delivery of the parting agent, and the second, larger end of the control piston exercises upon its return movement a reverse suction effect on the connecting passage. Any after-dripping of parting agent is securely prevented.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 25, 2006
    Assignee: Oskar Frech GmbH & Co. KG
    Inventors: Norbert Erhard, Hubert Pschenitschni
  • Patent number: 6769632
    Abstract: An apparatus for supplying a coating material, including: a coating material tank (2) for storing a high-viscosity coating material; a solvent tank (6) for storing a dilution solvent; a mixing machine (11) for mixing the high-viscosity coating material and the dilution solvent; a metering pump (5) for supplying the high-viscosity coating material from the coating material tank (2) to the mixing machine (11); and a solvent pump (9) for supplying the dilution solvent from the solvent tank (6) to the mixing machine (11), wherein the coating material tank (2) is a pressure tank which allows the high-viscosity coating material to be fed under the pressure of compressed air and the metering pump (5) supplies the high-viscosity coating material fed from the coating material tank (2) under the pressure of compressed air to the mixing machine (11) while quantifying the flow rate of the same.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 3, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Tohru Takeuchi
  • Patent number: 6663020
    Abstract: The invention relates to a mist generating head (34) comprising an injection unit (70) of the type used in diesel engines. Said head atomizes the liquid to be nebulized at a high frequency. The stream of liquid droplets emitted by the injection unit (70) is surrounded and broken up further by a gas nozzle (102) which encloses the outlet opening of the injection unit and is positioned slightly downstream of same.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: December 16, 2003
    Assignees: Platsch GmbH & Co.KG
    Inventors: Hans Platsch, Walter Klaschka, Albert Kiessling
  • Patent number: 6598803
    Abstract: A spray powder-coating apparatus fitted with an electronic control system (21) regulating the air flows (20, 43) to an injector (4) as a function of setpoints (m) for the rates of powder to be moved, and as a function of a setpoint (GV) for the total rate of air passing through the nozzle, by means of motor-driven adjustable throttles (18, 19, 44, 45), preferably also as a function of the actual values (89, 90) of the regulated air flows (20, 43).
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: July 29, 2003
    Assignee: ITW Gema AG
    Inventors: Gerald Haas, Felix Mauchle, Hans Peter Michael
  • Patent number: 6588406
    Abstract: A dual-fuel system, comprising an electrically triggerable injector, for alternatively or simultaneously supplying two distinct fuels to an internal combustion engine. The injector is connected to two separate fuel circuits. Each circuit comprises a fuel storage tank and a fuel rail. External valves control fuel access from the fuel storage tanks to the fuel rails. By appropriately activating the valves, one or both of the two fuels are fed to the injector. Inside the injector are two separate fuel paths, fluidically isolated from each other. Each internal fuel path communicates with one of the external fuel circuits. The injector contains a flow control valve for each separate fuel path and one electromagnet. In the non-activated position, both valves are resiliently urged against a common seat. When the electromagnet is energized, it simultaneously drives the two valves to open off the seat, thereby permitting one or two fuels to pass therethrough.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 8, 2003
    Inventor: Radu Oprea
  • Patent number: 6576913
    Abstract: A focused ion beam apparatus has a gas injector provided with a plurality of gas supply pipes each having a nozzle at one end for ejecting a gas and a housing in which the plurality of gas supply pipes are slidably accommodated. The housing has a tip portion with a hole provided at a terminal end thereof and the hole has a size set so that only one of the nozzles can extend therefrom. In addition, the housing has a tapered nozzle guide portion for guiding a selected nozzle from a retracted position at which the selected nozzle does not extend from the hole to an extended position at which the selected nozzle extends from the hole.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: June 10, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Yoshihiro Koyama
  • Patent number: 6523757
    Abstract: A compact spray valve that provides an extended atomizing air cap for reaching between tightly spaced electronic components. The compact spray valve of the present invention includes an air body, a fluid control body and an extended atomizing air cap. The atomizing air cap along with a seat extension provides a plurality of laminar air flow conduits causing atomization of a fluid into a spray. The resulting spray pattern can be controlled to provide a narrow line spray pattern with clearly defined edges. Another embodiment of the present invention provides a flat spray pattern.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: February 25, 2003
    Assignee: Precision Valve & Automation, Inc.
    Inventors: Richard John Bievenue, Jonathan N. Urquhart
  • Patent number: 6499674
    Abstract: A fuel injector is provided. The fuel injector also includes a multi-layer orifice plate assembly located at the housing outlet. The orifice plate assembly includes a first orifice plate having a plurality of first openings extending therethrough and a second orifice plate disposed proximate to the first orifice plate. The second orifice plate includes a first face having a perimeter, and a plurality of channels extending radially therethrough to the longitudinal axis. The second orifice plate also includes a second face disposed opposite the first face and a plurality of second openings extending between the first face and the second face. The fuel injector also includes an air assist sleeve disposed about the housing proximate to the outlet. The air assist sleeve includes at least one air channel in communication with the plurality of channels. A method of providing a fuel/air mixture is also provided.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: December 31, 2002
    Inventors: Wei-Min Ren, Jingming J. Shen
  • Publication number: 20020033424
    Abstract: The invention describes a shower and a faucet apparatus which includes a showerhead (or faucet) and a feeding mechanism, the showerhead (or faucet) includes a water inlet, a water outlet and a water passageway connecting said water inlet and outlet. A feeding aperture is provided on the showerhead (or faucet) connected to the feeding mechanism and the feeding mechanism includes a pump to deliver a substance through the feeding aperture into the passageway for subsequent dispensing through the water outlet. This invention provides a very user friendly water and substances dispensing system particularly useful for the public in the enjoyment of a shower.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 21, 2002
    Inventors: Santagio Rivera, Ruben H. Lujan
  • Patent number: 6170759
    Abstract: The invention relates to a method and a device for the delivery of adhesives, in particular for the delivery of hot melt adhesives in the form of a thin stream of adhesive spray directed onto the product surface and acted upon by at least one air jet. A spray head (40) is arranged at the one end of the device (45), which comprises a connecting housing (25) for receiving a insertion element (30), provided with an outlet opening (34) for the thin stream of adhesive spray (glue) and embodied as a nozzle conduit, a guide sleeve (35), designed for the coaxial seating of the piston rod (43), as well as a nozzle body (15) with bores (20) arranged in the circumferential direction distributed in respect to each other, in which an air nozzle (10) with an interior chamber, which is embodied to be convergent-divergent in the flow-through direction, is respectively arranged.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: January 9, 2001
    Assignee: Robatech AG
    Inventor: Thomas Meyer
  • Patent number: 6170760
    Abstract: A compact spray valve that provides an extended atomizing air cap for reaching between tightly spaced electronic components. The compact spray valve of the present invention includes an air body, a fluid control body and an extended atomizing air cap. The atomizing air cap along with a seat extension provides a plurality of laminar air flow conduits causing atomization of a fluid into a spray. The resulting spray pattern can be controlled to provide a narrow line spray pattern with clearly defined edges. Another embodiment of the present invention provides a flat spray pattern.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: January 9, 2001
    Assignee: Precision Valve & Automation, Inc.
    Inventors: Richard John Bievenue, Jonathan N. Urquhart
  • Patent number: 6065685
    Abstract: A spray nozzle of the type adapted to feed a liquid to a material being sprayed therefrom comprises a tubular spray conduit around which is arranged an annular feed port, this feed port being closed in a liquid-tight manner by resilient material openable by liquid pressure and whose degree of opening, and therefore the quantity of liquid fed to the material, rises linearly with increasing liquid pressure. Preferably, the resilient material is provided by a membrane ring (7) which is a flat ring with inwardly-tapering radial ridges (8b) raised thereon, the gaps between the ridges being filled with an elastomeric material, such that a series of resilient segments (9) is created. Under liquid pressure, the segments are compressed equally, giving a nearly completely annular flow of liquid into the material. The nozzle is particularly useful for the spraying of concrete, especially by the dry method.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: May 23, 2000
    Assignee: MBT Holding AG
    Inventor: Otto Tschumi
  • Patent number: 5916367
    Abstract: Proposed is a spraying-tool head (1), for use in particular in foundries, which has a distribution plate (9) fitted to an adapter (7) and, screwed onto the distribution plate, a nozzle plate (11) equipped with spray nozzles (4). The adapter as well as the distribution plate and the nozzle plate can be extended by adding screw-on or insertable modules.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: June 29, 1999
    Assignee: WOTEC Automationssysteme GmbH
    Inventor: Rudolf Wollin
  • Patent number: 5897427
    Abstract: A blasting apparatus has two or more pressured tanks and a switching member for selecting one of the pressured tanks from which particles are to be fed to an ejection portion, thereby which enabling a continuous blasting operation. The blasting apparatus has a particle supply valve which uses a valve rod and piston arrangement for preventing leakage of particles. Such a valve arrangement enables airtightness to be retained within pressurized chambers of the valve housing for a long period of time.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: April 27, 1999
    Assignee: Rich Hill, Inc.
    Inventor: Naoyoshi Tomioka
  • Patent number: 5878960
    Abstract: A pulse-wave-modulated spray control valve for controlling the release of a liquid to a flowing air stream for the purpose of atomizing the liquid to form a spray. The assembly includes a solenoid which is adapted to control reciprocating movement of an armature assembly that includes a valve head movable between an extended position in sealing engagement with a valve seat and a retracted position that permits liquid to enter a flow passage for a gaseous propellant. The solenoid is operated in response to energizing pulses which are modulated to control the flow rate of the liquid through the valve.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 9, 1999
    Assignee: Rimrock Corporation
    Inventors: Robert J. McInerney, II, David L. Celek, James J. Mahon, III, Michael K. Forry, Kurt R. Swartzlander
  • Patent number: 5709317
    Abstract: A hand held dispenser for dispensing foamable compositions is disclosed that is particularly useful for foam-in-place packaging systems. The hand held dispenser comprises a housing; a motor in the housing; a transmission in the housing and driven by the motor; and a valving cartridge in the housing and driven by the transmission for dispensing foamable compositions upon demand. The motor is positioned below the valving cartridge for providing a clear line of sight along the top of the housing.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: January 20, 1998
    Assignee: Sealed Air Corporation
    Inventors: George T. Bertram, John J. Corrigan, III, Patrick S. Lacombe, Michael R. Knaak
  • Patent number: 5667733
    Abstract: An ultra low volume fog or aerosol generator produces a fog with droplets whose particle size or sizes are easily varied from about 5 microns to about 20 microns during the operation of the machine. This generator includes an air blower, the discharge of which is directed along a prescribed path, thence, through a passageway and, thence, through a nozzle into the ambient air. Liquid supplied to the nozzle is entrained by the air as it passes through the nozzle for producing finely droplets dispersed in the air. The particle sizes of the droplets are regulated by altering the volume of air discharged through the nozzle by means of an air regulator valve, which diverts a portion of the air from its prescribed path. An electrical motor controls the opening and closing of the air regulator valve.In one embodiment, the motor cyclically modulates the opening and closing of the valve. In another embodiment, the motor is a reversible, D.C.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: September 16, 1997
    Assignee: Lowndes Engineering Co., Inc.
    Inventor: David W. Waldron, Sr.,
  • Patent number: 5518182
    Abstract: A solenoid type fuel injection valve for injecting fuel into a plurality of intake ports including a pintle provided at a lower end of a needle valve to protrude into a fuel atomizing space formed at a lower portion of a fuel injection hole, so that the fuel is atomized by collision against the pintle after passing through the fuel injection hole, and the atomized fuel is introduced into a fuel distributing space having an inclined wall surface. A pair of fuel spray guides are supported at a lower end of a cap through support arms, and a fuel injection passage having a horseshoe-like cross-sectional shape is formed around an outer periphery of each of the fuel spray guides. A fuel spray colliding against the inclined wall surface is divided into two flows which are conducted into the pair of fuel injection passages and injected equally into a bifurcated intake port.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: May 21, 1996
    Assignee: Kabushiki Kaisha Keihinseiki Seisakusho
    Inventor: Isamu Sasao
  • Patent number: 5507436
    Abstract: A device and method, especially adapted for operating sprinklers, shower heads etc. at low flow, converts low continuous liquid flow to a high intermittent and pulsating flow. The liquid is introduced at a controlled low rate of flow, such as by the use of a pressure-compensated dripper in a liquid supply line. The liquid then flows into a chamber which is somewhat expandable in volume. The pressure increases in the chamber while outflow of the liquid is restricted until pressure created by introduction of the liquid is sufficient to eject the fluid intermittently at a higher flow. This is achieved by utilizing a pressure-responsive valve in the liquid exit of the container. The valve has a preset pressure response designed for quick response to create a water hammer effect. The valve has openings which create a pumping effect to admix air or another liquid with the effluent stream.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 16, 1996
    Inventor: Gideon Ruttenberg
  • Patent number: 5407267
    Abstract: A method and apparatus for combining multiple components to form a coating material formulation in which one of the components is a resin, another component is a supercritical fluid employed as a fluid diluent, and, preferably, the third component is a catalyst. Two of the components are transmitted through separate flow paths to a first mixer within which they are combined to form a mixture, and then the third component is added to the mixture in a second mixer to form the coating material formulation for discharge by one or more coating dispensers or spray guns onto a substrate.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: April 18, 1995
    Assignee: Nordson Corporation
    Inventors: Dennis Davis, Harold D. Beam, Jeffrey J. Kruke
  • Patent number: 5332159
    Abstract: A paint spray gun having a dual operating mode trigger. The trigger pivots on a gun body about an axis. The two operating modes are selected by radially positioning the trigger relative to the axis. In a first operating mode, fluid flow to a nozzle is gradually increased as the trigger is gradually squeezed to permit fluid flow control for feathering the applied coating. In this mode, the trigger is mechanically linked for actuating a valve needle. In a second operating mode, a small actuating movement of the trigger operates a valve which causes a piston to move the valve needle to its fully open position. The second operating mode provides only on-off fluid control with a very short trigger stoke and a low trigger force.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: July 26, 1994
    Assignee: Ransburg Corporation
    Inventors: Thomas E. Grime, James P. Baltz, Roger T. Cedoz, John F. Schaupp
  • Patent number: 5330108
    Abstract: An ergonomic hand held paint spray gun which reduces operator fatigue and stress. The handle of spray gun has an ergonomically designed shape and the size of the handle may be changed through the use of different size handle covers. The spray gun has a plurality of triggers arranged to be operated by different fingers and to facilitate operation when the gun is held in different orientations to reduce fatigue and operating frequency stress on an operator's fingers. Some of the triggers operate low force valves which supply pilot air to a pilot valve which opens the fluid and air valves. The paint and air hoses may be attached to alternate locations on the gun to reduce hand and wrist fatigue when painting predominantly vertical surfaces or predominantly horizontal surfaces. A junction box may be located in the paint and air hoses to allow connection of lighter weight hoses to the gun.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: July 19, 1994
    Assignee: Ransburg Corporation
    Inventors: Thomas E. Grime, James P. Baltz, Roger T. Cedoz
  • Patent number: 5292068
    Abstract: A one-piece nozzle adapted for use within an adhesive dispenser includes a nozzle body formed with a throughbore having a discharge outlet within a nozzle tip portion which emits a bead of adhesive. A nozzle cap mounts the nozzle body to the adhesive dispenser such that an adhesive passageway within the dispenser communicates with the throughbore in the nozzle body and a plunger valve associated with the adhesive dispenser extends into the nozzle body in position to engage a seat formed at the nozzle tip. A number of air jet bores are drilled in the nozzle body, each communicating with an air passage formed between an outer surface of the nozzle body and an inner surface of the nozzle cap, which discharge jets of air into contact with the adhesive bead producing an elongated adhesive fiber deposited in a spiral pattern onto a substrate.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: March 8, 1994
    Assignee: Nordson Corporation
    Inventors: John M. Raterman, Scott R. Miller, Roger A. Ziecker
  • Patent number: 5284299
    Abstract: HVLP spray gun capable of operating from a source of high pressure air. Compressed air is delivered to the gun through a relatively small diameter air hose. A pressure compensated control valve is mounted in the spray gun to reduce the air pressure delivered to an air/fluid nozzle to a predetermined pressure of no greater than 0.7 Kg/cm.sup.2 (10 psig). The control valve maintains a constant air pressure at the nozzle when either the atomization air flow rate is changed and/or the fan air flow rate is changed of the pressure of the source air changes.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: February 8, 1994
    Assignee: Ransburg Corporation
    Inventor: D. William Medlock
  • Patent number: 5266115
    Abstract: A manipulator with servocontrolled axes, has two or more programmable heads for spraying various liquids and/or air into moulds, more particularly foundry moulds. The manipulator is controlled by a programmable logic (CPU) to move two or more spraying heads in a continuous or discontinuous mode along a predetermined path. The heads are designed to spray, in a programmed manner, various liquids which are atomised either under pressure or by a strong jet of compressed air, thus performing the dual action of atomiser and air blower.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: November 30, 1993
    Assignee: Taccon Construzioni Meccaniche S.D.F. di A. Gironi & C.
    Inventors: Danizzo Taccon, Gloriano Taccon
  • Patent number: 5245714
    Abstract: A whirlpool bath is provided with a bathtub body, a circulating pump, a hot water circulation path disposed between said bathtub body and said circulating pump, a plurality of blow-off nozzles which are mounted on said respective terminal ends of the hot water circulation path, and an air intake portion connected to the hot water circulation path to permit blowing of air-mixed hot water into said bathtub body from the blow-off nozzles and control means for selectively controlling the degree of opening of each blow-off nozzle, the degree of opening of the air intake portion and the number of revolutions of said circulating pump to provide blow-off of the hot water in various modes which are different in the blow-off amount and pressure. Namely, the whirlpool bath is capable of giving various kinds of massaging effect including a stimulating effect and a relaxing effect to a bather.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: September 21, 1993
    Assignee: Toto Ltd.
    Inventors: Hisato Haraga, Yasutoshi Inatomi, Takashi Obata, Mituaki Hasida, Koichi Uchiyama, Kenji Moriyama
  • Patent number: 5219097
    Abstract: A foam dispensing system and apparatus for mixing a plurality of foam components into an expanded foam and dispensing the mixed foam components, the apparatus having a body portion and a cartridge assembly mounted on said body portion. The cartridge assembly includes a mix chamber having a longitudinal bore and an aftermix chamber in communication with the mix chamber. The apparatus further includes inlets and passageways for supplying the plurality of foam components to the longitudinal bore of the mix chamber and a slidable valve rod for controlling the flow of the plurality of foam components into the mix chamber. A pressurized gas is injected into the aftermix chamber to aid in the mixing of the plurality of foam components and to provide an improved spray pattern of foam.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: June 15, 1993
    Assignee: Polyfoam Products, Inc.
    Inventors: E. Richard Huber, Pat L. Murray
  • Patent number: 5190219
    Abstract: An automatic spray gun for use in an automatic spray system which is a modular unit, wherein each working component is a separate module that can be removed from and re-assembled on the spray gun body itself for cleaning, repair and replacement without disturbing the setting of the gun body in the automatic spray set-up, such as distance from the work pieces to be sprayed, angle and the like. The needle valve which stops and starts the flow of liquid to be atomized and sprayed is operated by an air pressure piston and cylinder component which is a separate module and designed in a way whereby the pressurized air which powers and initiates operation of the piston and cylinder module can also be utilized to start and stop the flow of a separate source of pressurized air to atomize the liquid as it flows from the nozzle orifice and to delay the stop of atomizing air until after flow of pressurized air to hold the needle valve in its open position has been stopped.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: March 2, 1993
    Inventor: William H. Copp, Jr.
  • Patent number: 5174504
    Abstract: An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving chamber and an arcuate valve member movable relative to a valve seat member having a fuel discharge port for discharging fuel flow into the fuel receiving chamber as metered by said valve member in dependence on the pressure of fuel. The valve member comprises an arcuate reed-type valve received in a generally cylindrical tubular valve seat insert with the flow area of the fuel discharge port adjustable externally of the valve seat insert for adjusting the valve cracking pressure.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: December 29, 1992
    Assignee: Fuel Systems Textron, Inc.
    Inventor: Robert M. Halvorsen
  • Patent number: 5170939
    Abstract: A multiple component spray gun for spraying plural components is useful in applications involving polyurethane foams, elastomeric coatings, paints, thermosetting resin formulations, and the like. The ejected components are atomized under high or low pressure via a novel multiple mixing action. The gun design allows for an exchange of the mixing chamber components without the need to dismantle the gun body. The concept of the spray gun involves a gun body and a nozzle, a rotatable ball passage valve including a ball with internal porting in a general Y-configuration with two opposing inlet passages and a cylindrical outlet bore with the ball positioned in a totally enclosed resilient resinous packing material. The preferred packing material is formed from polytetrafluoroethylene commonly referred to under the trademark Teflon. The A and B components are communicated across the passages of the Y-configuration prior to the novel multiple mixing action and material back flow is virtually eliminated.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: December 15, 1992
    Inventor: Olin H. Martin
  • Patent number: 5165604
    Abstract: An air supply and control assembly for use with a spray gun comprises an assembly to couple a first source of pressurized air which controls the needle valve of a spray gun to a pilot valve connected to a second source of pressurized air to control delivery thereof to the spray gun atomizing component. The assembly includes a manifold connected by one port to the first source of air, by a second port to components operating the needle valve, and by a third port to a coupling passageway connected to the pilot valve.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: November 24, 1992
    Inventor: William H. Copp, Jr.
  • Patent number: 5163584
    Abstract: A foam dispensing system and apparatus for mixing a plurality of foam components into an expanded foam and dispensing the mixed foam components, the apparatus having a body portion and a cartridge assembly mounted on said body portion. The cartridge assembly includes a mix chamber having a longitudinal bore and an aftermix chamber in communication with the mix chamber. The apparatus further includes inlets and passageway for supplying the plurality of foam components to the longitudinal bore of the mix chamber and a slidable valve rod for controlling the flow of the plurality of foam components into the mix chamber. A pressurized gas is injected into the aftermix chamber to aid in the mixing of the plurality of foam components and to provide an improved spray pattern of foam.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: November 17, 1992
    Assignee: Polyfoam Products, Inc.
    Inventors: E. Richard Huber, Pat L. Murray
  • Patent number: 5156340
    Abstract: A spray system is disclosed which includes a spray gun for the hand-operated spraying of fluid material with pressurized air. A spray gun body includes a barrel chamber having an air tube which directs air outwardly through a discharge port with entrained material in a spray. A bistable control valve operates responsive to movement of a trigger for controlling the flow of both air pressure and material into the barrel chamber. The control valve is bistable in its operation to either close the air flow off when the trigger is in its off position or to open the air flow when the trigger is in any of its operating positions. Air tube adjustment means is provided for manually controlling the spray pattern during operation. An electrical control circuit is provided to control a material flow pump responsive to movement of the trigger.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: October 20, 1992
    Inventor: Gregory A. Lopes
  • Patent number: 5144702
    Abstract: A blow-off nozzle structure capable of automatically varying the blow-off volume of water comprises a tubular nozzle casing defining a blow-off flow forming passage therein, the passage forming a blow-off opening at a front end thereof and a hot water inlet opening at a rear end thereof, a valve seat formed in the midst of the blow-off flow forming passage, a valve element capable of being extended to or retracted from said valve seat so as to adjust the degree of opening of said valve seat, an air mixing portion defined in the blow-off flow forming passage and disposed at a position in front of the valve seat, the air mixing portion communicated with an air intake portion which has one end opened to atmosphere, and an automatic valve-element reciprocating means capable of moving said valve element toward or away from said valve seat.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: September 8, 1992
    Assignee: Toto Ltd.
    Inventors: Hisato Haraga, Yasutoshi Inatomi, Takashi Obata, Mituaki Hashida, Koichi Uchiyama, Kenji Moriyama
  • Patent number: 5119989
    Abstract: A dripless spray nozzle for an intermittent or cyclical spraying operation providing a spray manifold having an inlet port for receiving a pumped material to be sprayed, such as pressurized lube oil, and an inlet port for receiving pressurized air, a mixing chamber for mixing the material and the air, an outlet for conveying the mixture to an attached spray nozzle for spraying an air/material mixture onto an object such as an air/lube oil mixture onto a wheel of a railroad transit car. The spray manifold further comprises a first check valve downstream of the mixing chamber, and a second check valve mounted in the material inlet port. The material to be sprayed is intermittently or cyclically pumped past the second check valve into the mixing chamber. Pressurized air mixes therein with the material and the mixture is sprayed past the first check valve. A reduction in pressure of the pumped material closes the second check valve.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: June 9, 1992
    Assignee: Lubriquip, Inc.
    Inventor: Peter A. Kamis