Return From Liquid Pump Outlet To Supply Holder (e.g., Tank Filling, Mixing Or Pump Unloading) Patents (Class 239/127)
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Patent number: 8132743Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: GrantFiled: March 26, 2010Date of Patent: March 13, 2012Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G. Schroeder
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Patent number: 8132741Abstract: Systems and methods for applying substances to target areas are disclosed. The system includes a hood supported by a frame and moveable relative thereto between open and closed positions, and one or more spray heads coupled to the underside of the hood and configured to spray the target area when the hood is in the closed position, the spray heads and the hood configured such that the hood provides a wind barrier for the spray from the spray heads. The system further includes a liquid tank for holding the substance to be applied to the target area, an agitation system for desired mixing of the tank contents, and fluid pathways for delivery of the contents of the tank to the spray heads for application to the target area.Type: GrantFiled: January 7, 2009Date of Patent: March 13, 2012Assignee: Florida Turf Support, Inc.Inventors: Thomas N. Tremblay, Jr., Thomas N. Tremblay, Sr., William A. Myers
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Patent number: 8128005Abstract: The invention relates to a fuel injector comprising an injector housing having a pressure chamber from which fuel subjected to a high pressure is injected into a combustion chamber of an internal combustion engine when the pressure in a control chamber expands into a pressure relief chamber by a control valve device. The aim of the invention is to create a fuel injector which has a long service life even though subjected to high pressures. To this end, the injector includes a low-pressure supply line which is connected to a low-pressure return line by a purge path extending through the pressure relief chamber.Type: GrantFiled: January 30, 2008Date of Patent: March 6, 2012Assignee: Robert Bosch GmbHInventor: Hans-Christoph Magel
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Patent number: 8087596Abstract: The invention relates to a device (1) for metering media (2) and comprises at least one storage vessel (3), a measuring vessel (14) and a target vessel (14) that are interconnected to give one unit. By the exertion of force on the media (2) to be metered they can communicate between the storage vessel (3) and the measuring vessel (4) and can then be transferred to the target vessel (14). The metering volume is determined by the geometry of the measuring vessel (4). The target vessel (14) can be separated from the measuring vessel (4) by severing (welding, gluing, cutting) the connection between (14) and (4). The invention also relates to a method for metering media using the device (1) according to the invention. The device is suitable as a disposable unit and for the sterile metering of media in a non-sterile environment.Type: GrantFiled: November 2, 2007Date of Patent: January 3, 2012Assignee: Sartorius Stedim Biotech GmbHInventor: Heyo Mennenga
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Publication number: 20110297756Abstract: The present disclosure generally relates to fluid sprayers and more specifically, but not by limitation, to a portable airless fluid sprayer including fluid container support features configured to accommodate fluid containers of different sizes. In one example, a fluid sprayer pump assembly is provided and includes a pump assembly housing and a fluid intake conduit configured to provide a fluid path to the pump assembly housing. The fluid sprayer pump assembly also includes a frame assembly supporting the pump assembly housing and including a plurality of fluid container support features. Each of the fluid container support features is configured to accommodate a respective fluid container such that an inlet end of the fluid intake conduit is positionable within the respective fluid container. In one example, a fluid container support feature includes a fluid container holder pivotably attached to the frame assembly and movable between first and second positions.Type: ApplicationFiled: June 7, 2010Publication date: December 8, 2011Applicant: Wagner Spray Tech CorporationInventors: Criag L. Peterson, Ross D. Rossner
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Patent number: 8038081Abstract: A mobile power washer includes a heater module that is displaceable from an operative position, beneath a vented panel, to an access position enabling easy servicing or replacement of the module. The module includes a heater and a heat exchanger for heating water drawn from tanks for delivery at high pressure through a spray gun attached to a hose. A buffer tank is provided for retaining water heated by the heater for mixing with cold water from the tanks prior to further heating in the heat exchanger and delivery from the spray gun.Type: GrantFiled: August 13, 2009Date of Patent: October 18, 2011Assignee: Brendon LimitedInventor: Robert John Hendy
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Patent number: 7926736Abstract: An apparatus for injecting fuel into an internal combustion engine having a fuel injector acted on with highly pressurized fuel actuated by means of a metering valve device that is able to control the pressure in a pressure booster control chamber so that in a pressure booster pressure chamber delimited by a pressure booster piston which can be filled via a check valve with high-pressure fuel and communicates with an injection valve member pressure chamber, the pressure booster piston increases the pressure, causing an injection valve member for injecting fuel to open.Type: GrantFiled: October 19, 2005Date of Patent: April 19, 2011Assignee: Robert Bosch GmbHInventors: Achim Brenk, Hans-Christoph Magel, Volkmar Kern, Goran Kanis
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Publication number: 20110073677Abstract: A fluid sprayer includes a housing, a motor positioned within the housing, a pump operably coupled to the motor to draw fluid from a fluid source and pressurize the fluid, and a blower positioned within the housing and operable to discharge an airflow into the pressurized fluid discharged by the pump.Type: ApplicationFiled: December 3, 2010Publication date: March 31, 2011Inventors: Klaus Karl Hahn, Michael R. Gardner, Charles Keith Long
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Patent number: 7845914Abstract: A fast fill pump system for a self-propelled field sprayer includes high capacity centrifugal pump for tank filling. The centrifugal pump is connected in parallel with the fill connection and primed by a lower capacity diaphragm spraying pump. Two check valves and a pressure sensor allow the sprayer control to automatically control the pump priming and tank filling with the activation of one switch. The two-pump system preserves tank filling speed, even during operation of eductor or tank agitation functions. The centrifugal pump can be removed and the spraying pump operated to fill the tank without substantial base machine modification.Type: GrantFiled: February 15, 2007Date of Patent: December 7, 2010Assignee: Deere & CompanyInventors: Joshua Jacob Engelbrecht, Kent Alvin Klemme
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Patent number: 7807119Abstract: A process for the production of alumina trihydrate by alkaline digestion of bauxite using the Bayer process in which aluminate liquor and insoluble residues are separated using a solid/liquid separation device (E; W2; DC) characterised in that the said slurry (21a; 41; 230?) is at least partially passed through a hydrocyclone (H1; H21; H22; H3) to improve and accelerate the separation of the sodium aluminate liquor from the insoluble residues in the slurry (21a; 41; 230?) containing the said liquor and the said residues and that supplies or is derived from the said liquid-solid separation device. In a first embodiment, at least one hydrocyclone is used at the upstream side of the settler-thickener, as clarifier of the pregnant liquor. In a second embodiment, at least one hydrocyclone is used as a thickener of insoluble residue mud. In a third embodiment, a hydrocyclone is used in combination with the causticisation settler.Type: GrantFiled: September 19, 2005Date of Patent: October 5, 2010Assignee: Aluminium PechineyInventors: Jean-Marc Rousseaux, Gerard Pignol, Yves Magnan
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Patent number: 7798428Abstract: A spray head with improved distributor body for a high pressure spray cleaning apparatus is provided. The spray head is carried on the end of a hand held wand with control valves to separately regulate flow through a pair of fluid circuits, the spray head having a nozzle that sprays heated water in a fan-like pattern against a deflecting edge of a distributor body. Cleaning chemicals are forced through an aperture into the fan-like pattern prior to its striking the deflecting edge to be intimately mixed with the heated water to produce a mixture that strikes the deflecting edge and is deflected therefrom in a highly concentrated form at a high velocity. An elbow guard provides improved protection for the chemical cleaning fluid flow line where it connects to the spray head. Also disclosed is a spray head that allows for the separate application of fluids delivered from separate supply sources.Type: GrantFiled: December 28, 2006Date of Patent: September 21, 2010Assignee: K-O-K, LLCInventor: Randolph A. Weil
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Publication number: 20100224698Abstract: A container holder in a fluid delivery system is provided. In one example, an airless fluid delivery system is disclosed and includes a housing and a handle coupled to the housing. A first end of the handle is attached to the housing and a second end of the handle includes an attachment feature configured to receive and suspend a fluid container from the handle. In one example, a frame of the fluid delivery system includes a recess configured to receive the container. Further, in one example the handle extends transversely from the fluid delivery system and includes a empty container balance point and a full container balance point along a length of the handle.Type: ApplicationFiled: March 6, 2009Publication date: September 9, 2010Inventors: Ross David Rossner, Thomas C. Gessner
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Patent number: 7789319Abstract: One embodiment of the present subject matter includes a system which includes a tank, a conduit is adapted to carry a recirculating supply of fluid from the tank and into the tank, and at least one injector adapted to dispense fluid from the recirculating supply of fluid into a chamber.Type: GrantFiled: May 17, 2006Date of Patent: September 7, 2010Assignee: Micron Technology, Inc.Inventors: Eugene P. Marsh, David R. Atwell
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Patent number: 7784711Abstract: A fuel injector and servovalve for an internal combustion engine.Type: GrantFiled: January 31, 2008Date of Patent: August 31, 2010Assignee: C.R.F. Societa Consortile per AzioniInventors: Mario Ricco, Raffaele Ricco, Sergio Stucchi, Domenico Lepore, Carlo Mazzarella
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Patent number: 7766255Abstract: A system and method for applying an aqueous pesticide solution comprising a motor and a pump combination wherein the pump is operable in the 1000-3000 pounds per square inch range; a reservoir for holding the solution to be dispersed; a regulator and pressure monitoring gauge; a hose and nozzle system configured to disperse the pesticide solution at a rate of about 1.5 to about 2.5 gallons per minute and to atomize the solution being dispersed into droplets of between 1 to 30 microns, wherein an adhesion property of the dispersed aqueous pesticide solution is significantly enhanced by such configuration, and wherein the solution is hydro-kinetically charged when released from its hydrostatic state as the solution flows through the dispersion nozzle assembly.Type: GrantFiled: May 10, 2006Date of Patent: August 3, 2010Assignee: Gordon Laboratories, IncInventor: Glenn Gordon
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Patent number: 7712681Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: GrantFiled: June 3, 2005Date of Patent: May 11, 2010Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G Schroeder
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Patent number: 7614570Abstract: A bathing system is disclosed. The system includes a water supply line, an injectant supply line for supplying an injectant such as shampoo and conditioner, and an injector for combining the water and injectant and homogenizing the mixture. The system also includes a sprayer, which is connected to the outlet of the injector and is capable of producing a pulsating spray. Additional injectant supply line or lines can also be included. The injectant lines can be combined with a distribution manifold and in turn fed into the injector. In a preferred embodiment, the injector is of a differential pressure type. A bypass path and valve switch water directing to the sprayer for rinsing without mixing with injectant. The injector and sprayer are configured to produce a water-injectant mixture with a consistent mixing ratio over a wide range of water flow rates and pressures while providing pulsating action in either the wash or rinse cycle.Type: GrantFiled: February 2, 2006Date of Patent: November 10, 2009Assignee: Hair Patrol LLCInventor: James E. Freidell
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Patent number: 7594614Abstract: An ultrasonic waterjet apparatus (10) has a mobile generator module (20) and a high-pressure water hose (40) for delivering high-pressure water from the mobile generator module (20) to a hand-held gun (50) with a trigger and an ultrasonic nozzle (60). An ultrasonic generator in the mobile generator module (20) transmits high-frequency electrical pulses to a piezoelectric or magnetostrictive transducer (62) which vibrates to modulate a high-pressure waterjet flowing through the nozzle (60). The waterjet exiting the ultrasonic nozzle (60) is pulsed into mini slugs of water, each of which imparts a waterhammer pressure on a target surface. The ultrasonic waterjet apparatus (10) may be used to cut and de-burr materials, to clean and de-coat surfaces, and to break rocks. The ultrasonic waterjet apparatus (10) performs these tasks with much greater efficiency than conventional continuous-flow waterjet systems because of the repetitive waterhammer effect.Type: GrantFiled: November 3, 2003Date of Patent: September 29, 2009Assignee: VLN Advanced Technologies, Inc.Inventors: Mohan M. Vijay, Wenzhuo Yan, Andrew Tieu, Baolin Ren
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Patent number: 7584903Abstract: A microdosing device includes a dosing chamber which at least temporarily receives a quantity of liquid, and to which at least one dispensing opening is assigned. A vibration unit is operatively connected to at least one boundary surface of the dosing chamber in order to cause this boundary surface to oscillate for the purpose of a dispensing operation. At least two admission channels spaced apart from one another are provided on the dosing chamber.Type: GrantFiled: February 4, 2005Date of Patent: September 8, 2009Assignee: Ing. Erich Pfeiffer GmbHInventors: Joachim Koerner, Michael Helmlinger, Holger Schuerle
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Publication number: 20090065607Abstract: A spray apparatus for a pressure washer includes an adaptor configured to receive a flow of pressurized fluid through a conduit fluidly connected with a pressure washer. A multi-position valve is movably connected with the adaptor and positionable in a plurality of discrete positions. The valve position is modified with an operator engaged with the valve. A first output and a second output are defined within the adaptor, wherein the valve is rotatable to selectively allow the pressurized fluid to flow through one of the first or the second output.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Inventors: Michael R. Gardner, Charles Keith Long, Klaus Karl Hahn, Jesse John Jerabek
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Patent number: 7478765Abstract: Spray apparatus of the kind having a liquid feed line connecting a supply of spray liquid and at least one spray nozzle, a return line from the spray nozzle to the supply and a pump for moving spray liquid from the supply to the at least one spray nozzle and for returning spray liquid from the at least one spray nozzle to the supply when the liquid is not being sprayed, characterised in that the liquid return line serves as at least a portion of the feed line when spraying.Type: GrantFiled: February 13, 2006Date of Patent: January 20, 2009Inventor: Brian George Knight
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Patent number: 7469843Abstract: A control servo valve (8) is housed inside the casing (2) of an internal combustion engine fuel injector (1), and has a piezoelectric actuator (40), and a control chamber (13) having a fuel outlet passage (21); the outlet passage (21) comes out inside an annular chamber (34) defined by a fixed tubular portion (25) and by a shutter (32), which engages the tubular portion (25) in substantially fluidtight manner and is slid axially by the piezoelectric actuator (40) from a closed position, in which it closes the annular chamber (34) and is subjected to a zero axial resultant force by the fuel pressure, to an open position, in which the outlet passage (21) communicates with a discharge conduit.Type: GrantFiled: April 21, 2005Date of Patent: December 30, 2008Assignee: C.R.F. Societa Consortile per AzioniInventors: Mario Ricco, Sisto Luigi De Matthaeis, Adriano Gorgoglione, Antonio Gravina
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Patent number: 7326302Abstract: An apparatus for processing a substrate has a liquid supply unit, a nozzle unit, a first valve and a second valve. The liquid supply unit has an output port and an input port, and a processing liquid is output from the output port. The nozzle unit has a first port and a second port, and the first port is connected to the output port of the liquid supply unit. The first valve is connected between the second port of the nozzle unit and the input port of the liquid supply unit. The second valve is connected between the second port of the nozzle unit and the output port of the liquid supply unit. Moreover, the switch states of the first and second valves are opposite in order to control whether the nozzle unit spreads the processing liquid on the substrate.Type: GrantFiled: August 24, 2004Date of Patent: February 5, 2008Assignee: Hannstar Display CorporationInventors: Kun-Hsiang Chiang, Hua-Chun Yuan
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Publication number: 20080001007Abstract: A pressure washer includes a fluid pump operable to supply pressurized water, and a wand for directing the pressurized water. A nozzle body is connected to an end of the wand via a quick disconnect fitting. The nozzle body includes an auxiliary inlet for entraining an auxiliary fluid into the stream of pressurized water via a venturi effect. The nozzle body may be constructed of a single piece of metal such as brass, or a non-metallic material.Type: ApplicationFiled: June 22, 2006Publication date: January 3, 2008Inventors: Rick Gilpatrick, Michael James Meyer
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Publication number: 20070290069Abstract: A hydraulic reservoir arrangement supported on a self-propelled agricultural applicator is provided. The hydraulic reservoir arrangement includes a tank that is preassembled so as to define an enclosed cavity configured to receive a hydraulic fluid flow. The tank includes an opening at an uppermost surface. The arrangement further includes a return conduit that is generally linear and vertically aligned along its entire length. An angled fitting is connected at an uppermost end of the return conduit. The opposite lowermost end of the return conduit passes through the opening of the uppermost surface and extends into the cavity of the tank. Only a weld connection at an outer surface of the tank attaches the return conduit at the tank.Type: ApplicationFiled: June 16, 2006Publication date: December 20, 2007Inventor: Richard A. Moen
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Patent number: 7124961Abstract: A sprayer system includes one or more spray nozzle systems and a recirculation line which contains a Venturi for recirculation of non-sprayed liquid into a tank during breaks in spraying. To facilitate circulation, restrictors are placed in an upstream area of each nozzle system feeding line, and a downstream control valve is inserted between each nozzle system and the recirculation line. Each nozzle system can be independently controlled. Closing a control valve activates the spraying system associated with that valve, whereas opening the valve enables the liquid to circulate through the recirculation line into the tank to prevent unwanted dripping, demixing and depositing.Type: GrantFiled: November 14, 2003Date of Patent: October 24, 2006Assignee: John Deere Farbriek Horst B.V.Inventor: Jaap Wilting
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Patent number: 7108199Abstract: A device for dispensing liquid scent includes a reservoir for containing liquid scent and a reducer tee disposed in an opening in the reservoir. The reducer tee has first, second and third orifices in fluid communication with one another, and the first orifice is located in the reservoir opening so as to be in direct fluid communication with the interior of the reservoir. The device also includes a pump having an inlet and an outlet. A first tube connects the interior of the reservoir to the pump inlet, and a second tube connects the pump outlet to the second orifice. Operation of the pump can be controlled, by a timer for example, so that a predetermined amount of liquid scent is dispensed through the third orifice at a predetermined time. An additional amount of liquid scent is returned to the reservoir via the first orifice.Type: GrantFiled: October 19, 2005Date of Patent: September 19, 2006Inventor: Peter M. Brown
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Patent number: 7097115Abstract: A fuel injector regulator having combined initial injection and peak injection pressure regulation. The fuel injector regulator includes a rate shaping valve movably supported within a valve bore between a closed position and an open position to regulate a rate of injected fuel. The regulator further includes a waste gate valve having a body movably supported within a bore of the rate shaping valve and between a closed position and an open position to regulate the pressure of injected fuel.Type: GrantFiled: December 3, 2004Date of Patent: August 29, 2006Assignee: Detroit Diesel CorporationInventors: He Jiang, Gerald Gaydek
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Patent number: 7055763Abstract: A mist generating apparatus having a casing that is divided into a storage chamber, a pump chamber, a waterwheel chamber and a mist chamber. The storage chamber is provided with a water storage tank having a heater, while the pump chamber is provided with a pump. A waterwheel located in the waterwheel chamber and a fan located in the mist chamber are provided around a rotating axis so as to rotate together, and then warm water in the water storage tank is sprayed onto the waterwheel by means of the pump, whereby mist is generated. The generated mist is guided to the mist chamber by means of the fan with warm air from a warm air generator and is discharged from an outlet.Type: GrantFiled: February 28, 2003Date of Patent: June 6, 2006Assignee: Sera Corporation Inc.Inventor: Kenji Torigoe
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Patent number: 7032840Abstract: A bathing system is disclosed. The system includes a water supply line, an injectant supply line for supplying an injectant such as shampoo and conditioner, and an injector for combining the water and injectant and homogenizing the mixture. The system also includes a sprayer, which is connected to the outlet of the injector and is capable of producing a pulsating spray. Additional injectant supply line or lines can also be included. The injectant lines can be combined with a distribution manifold and in turn fed into the injector. In a preferred embodiment, the injector is of a differential pressure type. A bypass path and valve switch water directing to the sprayer for rinsing without mixing with injectant. The injector and sprayer are configured to produce a water-injectant mixture with a consistent mixing ratio over a wide range of water flow rates and pressures while providing pulsating action in either the wash or rinse cycle.Type: GrantFiled: June 7, 2002Date of Patent: April 25, 2006Assignee: Hair Patrol LLCInventor: James E. Freidell
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Patent number: 7025284Abstract: A fuel injection system having a high-pressure fuel pump and a fuel injection valve connected to it for each cylinder of the internal combustion engine. A pump piston of the high-pressure fuel pump delimits a pump working chamber that is connected to a pressure chamber of the fuel injection valve, which has an injection valve element that controls injection openings and can be moved in an opening direction counter to a closing force by the pressure prevailing in the pressure chamber. A first control valve controls a connection of the pump working chamber to a relief chamber and a second control valve controls a connection of a control pressure chamber which communicates with the pump working chamber, to a relief chamber. A throttle restriction is respectively provided in connections of the control pressure chamber to the pump working chamber and the relief chamber.Type: GrantFiled: December 6, 2002Date of Patent: April 11, 2006Assignee: Robert Bosch GmbHInventor: Peter Boehland
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Patent number: 7007860Abstract: A fuel injector in an engine includes a spring cavity, a piston, a plunger, a spring, a fuel cavity, and a stop plate. The piston is hydraulically controlled to force the plunger down to compress fuel in the fuel cavity. However, under certain conditions, the plunger can contact the stop plate and/or the spring can become overcompressed. Both of these conditions can cause damage to the fuel injector. The present invention locates a pressure equalization channel in such a way as to dampen the motion of the piston to prevent this damage to the fuel injector.Type: GrantFiled: August 30, 2002Date of Patent: March 7, 2006Assignee: Caterpillar Inc.Inventors: Tan Dongming, Thomas R. McClure, Scott R. Schuricht, Wang Yongxin
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Patent number: 6921028Abstract: Disclosed is a dispersing apparatus comprising a container body; a sealable lid detachable from the container body; a mixing shaft supported by and extending from the lid and having a mixing member; an enclosing member supported by the lid or the mixing shaft and surrounding the mixing member; the enclosing member containing pulverizing media and permitting a pigment-vehicle fluid to pass therethrough; a vacuum pump connected to the lid through a condenser and pipes to reduce the pressure in the container body; and a recovery tank connected to the condenser to collect a liquid fraction separated from a gas fraction by the condenser; wherein the recovery tank and the condenser are connected to the lid through pipes so that the liquid fraction separated by the condenser can be returned from the recovery tank or the condenser to the container body when required, in order to control the viscosity of the pigment-vehicle fluid.Type: GrantFiled: June 8, 2001Date of Patent: July 26, 2005Assignee: Kansai Paint Co., Ltd.Inventors: Masahiko Hiraki, Yushi Taguchi
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Patent number: 6892955Abstract: There is disclose a high-pressure fuel pump and a fuel injection valve connected to it for each cylinder of an internal combustion engine. A pump piston of the pump delimits a working chamber connected to a pressure chamber of the injection valve having a valve element controlling injection openings and movable in an opening direction counter to closing force by pressure prevailing in the pressure chamber. A control valve controls connection of a control pressure chamber with the pump-working chamber delimited by a control piston to a relief chamber. When the injection valve element is closed, the control piston opens a main connection with a large flow cross section and when the injection valve element is open, this control piston closes the main connection, only opening a bypass connection with small flow cross section, the bypass connection is embodied in a housing part delimiting the control pressure chamber.Type: GrantFiled: December 17, 2002Date of Patent: May 17, 2005Assignee: Robert Bosch GmbHInventor: Peter Grabandt
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Patent number: 6874700Abstract: A contamination control apparatus has a sprayer including at least one nozzle for spraying water, at least one eliminator having a passageway in which air is sprayed with the water to remove potential contaminants from the air, and a circulator for providing the sprayer with the water. The circulator includes a pH control device for adjusting the pH of the water fed to the sprayer, and an organic matter removing device for removing organic matter from the water. The contamination control apparatus can be advantageously employed in an air-conditioning system of a substrate processing facility.Type: GrantFiled: October 15, 2003Date of Patent: April 5, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Seok Ham, Hyun-Joon Kim, Hyun-Ho Cho
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Publication number: 20040164176Abstract: The unit of the invention comprises a motor-driven high pressure pump (11) having a delivery side (13) and a suction side (14), and a delivery gun (15) connected to the pump delivery side (13) by a delivery conduit (16) having a flow on-off valve. The valve unit comprises a by-pass valve (25, 33) arranged to close or alternatively, when in the open state, to enable direct flow passage between the delivery side (13) and the suction side (14), and having a control means (31, 32) sensitive to the liquid pressure in the delivery conduit (16); said control means comprises two valving elements (31, 32) which are normally joined together to form one piece in contact with the liquid of the delivery conduit (16), but which separate when the pressure in the delivery conduit (16) exceeds the normal delivery value (P1) following flow interruption by the delivery gun (15), to hence provide direct passage for the liquid from the delivery conduit (16) to the suction side (14).Type: ApplicationFiled: January 26, 2004Publication date: August 26, 2004Applicant: S.I.S.T.E.M.A. S.R.L.Inventor: Felice Vassanelli
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Publication number: 20040144855Abstract: A two-handle cleaning lance includes a pair of switches which must be held closed by an operator to allow high pressure water to be directed to a discharge nozzle. A dump valve is selectively actuated to dump the high pressure water to a dump nozzle at which it will enter the environment at a much reduced pressure. The dump valve is operated by a control which monitors that the two switches are both held closed. If either switch is released, then the dump valve is moved to a dump position. The present invention ensures that an operator does not disable one of the two switches such as by taping it closed. The dump valve will not move back to its actuated position until both switches have been released and have moved to an open position.Type: ApplicationFiled: January 24, 2003Publication date: July 29, 2004Inventor: Matthew O. Herhold
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Patent number: 6749131Abstract: Spray apparatus comprising a spray carrier or liquid reservoir (1), a loop circuit, a first pump (2) for feeding spray liquid from the liquid reservoir (1) to the loop circuit (A, B, C, D), a spray chemical reservoir (5), chemical injection means for injecting spray chemical from the spray chemical reservoir (5) into the loop circuit (A, B, C, D), a spray nozzle (6), a valve (20) selectively connecting the spray nozzle (6) to the loop circuit (A, B, C, D), and a second pump (4) in the loop circuit (A, B, C, D) for continuously circulating spray liquid and spray chemical in the loop circuit (A, B, C, D).Type: GrantFiled: April 29, 2003Date of Patent: June 15, 2004Inventor: Brian George Knight
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Patent number: 6745952Abstract: The invention relates to a fuel injection device for an internal combustion engine, having a common high-pressure collection chamber (common rail) that can be filled via a high-pressure pump. The high-pressure collection chamber communicates with injection valves, each of which includes a control valve embodied as a 3/2-way valve. Control faces are provided on the control part, which connect a high-pressure collection supply line to inflow lines to the injection nozzle or with a relief line, and the control part is actuatable by a controlled outflow line. The control part includes a throttle element, which via a bore communicates with a hollow chamber.Type: GrantFiled: September 27, 2001Date of Patent: June 8, 2004Assignee: Robert Bosch GmbHInventor: Jaroslaw Hlousek
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Patent number: 6739526Abstract: A coating apparatus for coating a material to be coated with a solution is disclosed, preferably for coating pharmaceuticals. A spray bar having a spray gun receptacle, a solution inlet conduit and an atomizing air conduit is disclosed. The spray gun is positionable in the spray gun receptacle and has a body portion adapted to fit in the receptacle and an insertion portion having a sealable orifice at a spraying end thereof. The body portion has an internal void constructed and arranged to be in fluid communication with the solution inlet conduit and the atomizing air conduit when the spray gun is positioned in the spray gun receptacle and the insertion portion is in an open position. The insertion portion is moveable between an open position defining a passage between the body portion void and the spraying end orifice a closed position sealing the insertion portion against the body portion to close said passage.Type: GrantFiled: March 14, 2002Date of Patent: May 25, 2004Assignee: Thomas Engineering, Inc.Inventor: James T. Wlodarczyk
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Publication number: 20040094637Abstract: Disclosed is a dispersing apparatus comprising a container body; a sealable lid detachable from the container body; a mixing shaft supported by and extending from the lid and having a mixing member; an enclosing member supported by the lid or the mixing shaft and surrounding the mixing member, the enclosing member containing pulverizing media and permitting a pigment-vehicle fluid to pass therethrough; a vacuum pump connected to the lid through a condenser and pipes to reduce the pressure in the container body; and a recovery tank connected to the condenser to collect a liquid fraction separated from a gas fraction by the condenser; wherein the recovery tank and the condenser are connected to the lid through pipes so that the liquid fraction separated by the condenser can be returned from the recovery tank or the condenser to the container body when required, in order to control the viscosity of the pigment-vehicle fluid.Type: ApplicationFiled: March 21, 2003Publication date: May 20, 2004Inventors: Masahiko Hiraki, Yushi Taguchi
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Patent number: 6719221Abstract: The fuel injector has a housing that is formed from at least one nozzle tension nut, a first injector module and a second injector module. The first injector module and the second injector module adjoin one another and are disposed in the nozzle tension nut. A fuel high-pressure bore is led through the first injector module and the second injector module. A fuel return bore is disposed in the housing. Contact surfaces between the injector modules form a first gap that adjoins the high-pressure bore. Contact surfaces between the nozzle tension nut and the injector modules form a second gap that is connected to the first gap. The return line adjoins the second gap for the discharge of fuel that has entered the second gap from the high-pressure bore via the first gap. The fuel injector is such that the second gap is sealed off relative to the surroundings of the fuel injector.Type: GrantFiled: March 8, 2002Date of Patent: April 13, 2004Assignee: Siemens AktiengesellschaftInventors: Wendelin Klügl, Günter Lewentz, Gerd Schmutzler, Andreas Voigt
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Patent number: 6696116Abstract: Pellets which may, for example, simulate snow are brought to a position such as the top of a tree from where they are dispensed. After falling to the bottom. the pellets are collected and re dispensed. The pellets are blown through a venturi tube and from there to a tube which runs to the position at where the pellets are dispersed. An adjustable flap is provided in the venturi tube, this flap functioning both to contribute to the venturi action controlling the fluid pressure and as a valve to control the rate of flow of pellets for optimum operation.Type: GrantFiled: June 29, 2001Date of Patent: February 24, 2004Inventor: Cary Bigman
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Patent number: 6672517Abstract: The invention relates to a system made of an oil pump and of a magnet valve for preventing oil from dripping when the oil burner is switched off. The inventive system is provided with an oil pump (23) and a magnet valve (10) which has a closing body (16) that comprises an oil flow borehole (17). The closing body (16) is displaceably located in a borehole (12). An oil line (11) goes through the borehole (12). The oil flow borehole (17) of the closing body (16) complements the oil line (11) in a first position of the inventive magnet valve (10). The oil flow is thus released. The closing body (16) interrupts the oil line (11) in a second position of the magnet valve (10). A vacuum is simultaneously generated in said second position. The vacuum reverses the direction of oil flow in an end section (15) of the oil line (11). The oil is thus prevented from dripping.Type: GrantFiled: July 20, 2001Date of Patent: January 6, 2004Assignee: Honeywell International Inc.Inventor: Michel Lüscher
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Patent number: 6651903Abstract: The invention is directed to a unique tank and ring system for transporting and circulating high specific gravity soluble fluid on board a vessel.Type: GrantFiled: July 27, 2000Date of Patent: November 25, 2003Assignee: VT Halter Marine, Inc.Inventor: W. Philip Nuss
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Patent number: 6637675Abstract: A closed needle injector assembly is provided which effectively permits low fueling quantity control in short duration injections and pilot quantity control in longer duration events without compromising energy efficiency, maximum fuel delivery rates nor requiring increased operating pressures. The closed needle injector assembly includes first and second needle valve elements and a throttle passage formed in the second needle valve element to restrict fuel flow through an injector orifice. The second needle valve element is telescopingly received within the first needle valve element. Respective control volumes and one or more injection control valves are used to control the movement of the needle valve elements. Operation of the assembly results in movement of the first needle valve element to an open position for throttling fuel flow through the throttle passage followed by subsequent lifting of the second needle valve element for longer duration injections.Type: GrantFiled: July 13, 2001Date of Patent: October 28, 2003Assignee: Cummins Inc.Inventors: John T Carroll, III, Donald J Benson
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Patent number: 6630033Abstract: A high pressure car wash apparatus providing economy of both water and detergent by the recirculation of a portion of the water and detergent being utilized to a holding tank for reintroduction into the system.Type: GrantFiled: August 28, 2002Date of Patent: October 7, 2003Inventor: Louis Colicchio
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Patent number: 6626374Abstract: A high pressure cleaning apparatus provides a complete assembly mounted on a unitary base for applying high pressure water to two cleaning wands through two separate flexible hoses. A single engine drives two high pressure pumps through bypass mechanisms. A large water tank feeds the pumps. Each hose is mounted on its own reel. The water may be heated by water heaters also mounted on the base. Tanks for holding various cleaning agents are also provided, as well as receptacles for holding dispensing cans of the cleaning agents. The base is provided with features for lifting the entire assembly onto conveyances or work areas.Type: GrantFiled: July 16, 2001Date of Patent: September 30, 2003Inventor: Michael R. Diedrick
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Patent number: 6578772Abstract: The present invention is a treatment solution supply apparatus for supplying a treatment solution onto a substrate and includes: a discharge nozzle for discharging the treatment solution onto the substrate; a container for storing the treatment solution; a supply piping for connecting the discharge nozzle and the container; a pump provided along the supply piping; a pump drive mechanism for controlling operation of the pump; a circulation piping having one end branching out from the piping between the container and the pump and another end provided at the pump; a filter, provided at some midpoint along the supply piping and between the one end and the other end of the circulation piping, for filtering the treatment solution to remove a foreign substance; a drain piping for draining the treatment solution filtered by the filter and containing the foreign substance; and a valve provided along the drain piping for controlling a flow rate of the treatment solution drained from the filter.Type: GrantFiled: March 26, 2001Date of Patent: June 17, 2003Assignee: Tokyo Electron LimitedInventors: Akihiro Fujimoto, Kousuke Yoshihara, Masahiro Enomoto
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Publication number: 20030057295Abstract: A reversing valve for a high pressure spring gun, comprising: a pump connection; a connecting duct; a first section of the connecting duct connected to the pump connection; a second section of the connecting duct leading to a high pressure discharge; a block valve, being a transition between the first and second sections, that can be isolated by switching off the high pressure gun; a throttle, linked with the first section of the connecting duct to let fluid through; an exhaust duct linked to the throttle and leading to a drain; and a discharge valve operated by an electric switch to isolate the exhaust duct when the high pressure spray gun is switched on.Type: ApplicationFiled: July 17, 2002Publication date: March 27, 2003Applicant: Hammelmann Maschinenfabrik GmbHInventor: Burkhard Helmig