By Gas Pressure Patents (Class 239/411)
  • Patent number: 9850842
    Abstract: A controller for a common-rail injection system includes a plurality of fuel injectors, a common fuel supply line for the fuel injectors, a high-pressure pump for supplying the common fuel supply line with fuel, and a pressure sensor for determining the pressure in the common fuel supply line. A determination unit evaluates data of the pressure sensor and, from the pressure drop caused by an injection in the common fuel supply line, determines the fuel quantity actually injected during this injection or a value derived therefrom. An adaption unit uses the results of the determination unit in order to adapt the actuation of the fuel injectors. The determination unit carries out at least one test injection, and the actually injected fuel quantity or a value derived therefrom is effected by way of the test injection or injections.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: December 26, 2017
    Assignee: Liebherr Machines Bulle SA
    Inventors: Konrad Christ, Francois Masson, Richard Pirkl
  • Patent number: 9539599
    Abstract: A recirculation block includes a top face and a bottom face that are connected by a right side face, a left side face, a front face, and a rear face. The recirculation block further includes a pair of junction block entry ports and a pair of side block entry ports. Both of the junction block entry ports are positioned on the bottom face. The first side block entry port is positioned on the right side face and the second side block entry port is positioned on the left side face. The recirculation block further includes a pair of exit ports. The first exit port is in fluid communication with both the first junction block entry port and the first side block entry port. The second exit port is in fluid communication with both the second junction block entry port and the second side block entry port.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 10, 2017
    Assignee: Millennium Custom Coatings, Inc.
    Inventor: Robert G. Crawford
  • Patent number: 9119353
    Abstract: A subsurface emitter includes a valve both preventing water from draining from the system and blocking the entry of roots and soil into the emitter body. A nozzle is present at one or both ends of a vertical tube. A piston is held in a normally closed position by a spring in the absence of water pressure, covering at least one port in the nozzle. When sufficient water pressure in provided, the spring is compressed and the nozzle uncovers the port providing a subsurface spray of water. The spray of water is sufficient to clear mineral deposits which otherwise may accumulate and block the port.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: September 1, 2015
    Inventor: Kenneth Owen Richardson
  • Patent number: 8662357
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dispensing toners. In one aspect, a cap and valve assembly is provided including a movable valve assembly, the movable valve assembly having a first position and a second position; a toner path, which when open is configured to allow toner to flow from a toner container to an output aperture; and an air inlet path, which when open is configured to couple an air source to the toner container; where in a first valve assembly position the toner path and the air inlet path are closed, and in a second valve assembly position the toner path aid the air inlet path are open.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: March 4, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Charles A. Centofante, Brian S. Boothman
  • Patent number: 8490893
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dispensing toners. In one aspect, a toner dispensing system includes a toner container; a cap and valve assembly coupled to the toner container, the cap and value assembly including: a movable valve assembly, the movable valve assembly having a first position and a second position, a toner path, and an air inlet path, where in a first valve assembly position the toner path and the air inlet path are closed, and in a second valve assembly position the toner path and the air inlet path are open; an air assembly including a first air supply coupled to the air path of the cap and valve assembly and a second regulated air supply coupled to the toner container; and a control assembly for controlling the second air supply.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: July 23, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Charles A. Centofante, Brian S. Boothman
  • Publication number: 20130160742
    Abstract: The present disclosure is directed to a fuel circuit of a fuel injector that includes a first channel, a second channel, and a valve. The first channel is configured to receive a first fuel and define a flow path for the first fuel. The second channel is configured to receive a second fuel and define a flow path for the second fuel. The valve is in fluid communication with the first channel and the second channel. The valve is adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 27, 2013
    Applicant: Caterpillar Inc.
    Inventors: Cory A. Brown, Xiangdong Ding, Hoisan Kim, Mayank Mittal, Mark F. Sommars
  • Patent number: 8418712
    Abstract: The present invention provides an air discharge implement for a portable pressurized sprayer comprising a cylindrical main body of discharging duct, an external hood jacket, a conical moving plug and a compression spring. Wherein the main body of hollow discharging duct includes a cylinder bore, a cylindrical discharging mount for containing conical moving plug, and an air passage interposed between hollow discharge chamber and cylinder bore. The external hood jacket is a hollow holder to contain compression spring. The conical moving plug includes a top cone and a planar base with plural footing legs so that a water flow gap is created between the planar base and the air passage at the cylinder bore. If the present invention is properly connected to a water outtake hose of a portable pressurized sprayer, either no air or certain air mingled in the compressed water, it can achieve the air-discharging effect completely.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: April 16, 2013
    Inventors: Ying Lin Cai, Chao Fou Hsu
  • Patent number: 8371113
    Abstract: The present invention provides a mixing device (1) for mixing urea with a gas, said urea being preferably dissolved in a fluid preferably water and said gas being preferably air. The mixing device comprises preferably a urea inlet (10) and a gas inlet (12) for feeding respectively urea and the gas into a mixing chamber (20) of the mixing device (4), and an outlet (14) for outlet of the mix of urea and gas from the mixing chamber (20), these inlets (10,12) and outlet (14) may preferably have a stream wise extension and runs preferably into the mixing chamber (20) and the outlet (14) originates preferably from the mixing chamber (20). Preferably, at least the gas inlet (12) for feeding air into the mixing chamber is designed so that depositing of urea crystals on selected surfaces of the said inlet is substantially (typically in the sense that deposited crystals does not clog the inlet) or totally avoided.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: February 12, 2013
    Assignee: Grundfos NoNox A/S
    Inventors: Hans Henrik Jochumsen, Steen Kahler, Karim Lindberg, Martin Ebro Christensen, Niels Stubager Kiemer, Niels Torp Madsen, Janus Juul Rasmussen, Tom Johansen
  • Publication number: 20120160937
    Abstract: The present invention relates to a metering module (15) for a liquid reducing agent, in particular a urea-water solution, for mixing the reducing agent with a gas, in particular air, for further introduction into an exhaust pipe (5) of an internal combustion engine (1). The metering module (15) comprises a metering valve (31) having a conduit (33), a compressed air duct (49) and a mixing chamber (35). An outlet opening of the conduit (33) for the reducing agent is arranged in the mixing chamber (35) at a distance from the mid-axis of the metering module (36).
    Type: Application
    Filed: July 29, 2010
    Publication date: June 28, 2012
    Applicant: ROBERT BOSCH GMBH
    Inventors: Bernhard Feistritzer, Markus Foetschl, Werner Pape
  • Publication number: 20110053464
    Abstract: A system and a method for removing a coating from a substrate. The system provides a compressed air source, a heated water source, a particulate cleaning medium source, and a mixing valve including an air input, a water input, and a particulate cleaning medium input. The inputs are positioned on the valve so that the water input is positioned downstream of the compressed air input, and the particulate cleaning medium input is positioned downstream of both the compressed air and water inputs. The method of mixing the air, water, and particulate cleaning medium provides a coating removal mixture having a volumetric ratio of air to water of at least 100:1 and a volumetric ratio of air to particulate cleaning medium of at least 70:1.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 3, 2011
    Applicant: ALL COATINGS ELIMINATION SYSTEM CORPORATION
    Inventor: John L. Fowler, III
  • Patent number: 7744019
    Abstract: An apparatus for mixing a catalyst with a resin and then spraying the mixture onto a surface. The catalyst is mixed with air before the catalyst/air mixture is introduced to the resin in the mixing tube. The sprayer is provided with a specially designed check valve to prevent resin and catalyst from back flowing into the air/catalyst supply line. The construction of the check valve prevents it from clogging or becoming stuck shut during operation.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: June 29, 2010
    Assignee: Alphagen Materials Technology, Inc.
    Inventor: Matthew Merchant
  • Patent number: 7654080
    Abstract: The invention relates to a dosing system comprising a dosing means for metering a liquid, especially an aqueous urea solution used for the after treatment of exhaust gases generated by combustion engines. The liquid can be conveyed from a reservoir into an exhaust manifold through the dosing means in a normally operating conveying device. According to the invention, at least one area that is located between a dosing point and the reservoir and is impinged upon by the liquid can be emptied counter to a normal transport direction of the liquid.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: February 2, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ripper, Markus Buerglin, Thorsten Mayer, Michael Offenhuber, Dirk Heilig
  • Patent number: 7571603
    Abstract: The invention relates to a metering system for injecting pollutant reducing medium into an exhaust system includes a metering pump, and at least one self-opening nozzle for injecting fluidic media into the exhaust gas system. The nozzle is self-opening with a needle chamber, a nozzle needle and a spring chamber with a spring element. The needle chamber and spring chamber are separated by a flexible membrane which prevents fluidic media from escaping from the needle chamber into the spring chamber, and also permits an excess pressure to prevail in the needle chamber in relation to the spring chamber, causing the nozzle needle to be displaced in opposition to a spring force, thus releasing a nozzle opening. The inventive metering system is cost-effective, robust and can also be used at low operating temperatures.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: August 11, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Ripper, Johannes Schaller, Markus Buerglin, Ulrich Meingast, Dirk Heilig
  • Publication number: 20090108090
    Abstract: A liquid comprising an analyte can be nebulized to produce droplets, and the droplets can be entrained in a carrier fluid flow. A portion of the droplets can be selected to remain entrained in the carrier fluid flow, thereby producing a selected droplet fluid flow including the carrier fluid and the selected portion of the droplets. The selected droplet fluid flow can be dried to produce an aerosol flow containing particles comprising the analyte. In addition, an amount of the liquid consumed in producing the aerosol flow can be quantified.
    Type: Application
    Filed: December 31, 2008
    Publication date: April 30, 2009
    Applicant: Cooper Environmental Services LLC
    Inventors: John A. Cooper, Douglas C. Barth, Bruce E. Johnsen
  • Publication number: 20090031714
    Abstract: The present invention provides a mixing device (1) for mixing urea with a gas, said urea being preferably dissolved in a fluid preferably water and said gas being preferably air. The mixing device comprises preferably a urea inlet (10) and a gas inlet (12) for feeding respectively urea and the gas into a mixing chamber (20) of the mixing device (4), and an outlet (14) for outlet of the mix of urea and gas from the mixing chamber (20) , these inlets (10,12) and outlet (14) may preferably have a stream wise extension and runs preferably into the mixing chamber (20) and the outlet (14) originates preferably from the mixing chamber (20). Preferably, at least the gas inlet (12) for feeding air into the mixing chamber is designed so that depositing of urea crystals on selected surfaces of the said inlet is substantially (typically in the sense that deposited crystals does not clog the inlet) or totally avoided.
    Type: Application
    Filed: April 10, 2006
    Publication date: February 5, 2009
    Inventors: Hans Henrik Jochumsen, Steen Kahler, Karim Lindberg, Martin Ebro Christensen, Niels Stubager Kiemer, Niels Torp Madsen, Janus Juul Rasmussen, Tom Johansen
  • Patent number: 7165733
    Abstract: A sanitary spray nozzle system. The nozzle may be fixed in position, or may be mounted on an oscillating or moveable carriage for application of material to a thin film dryer. A nozzle body includes a hollow mounting chamber with an inner surface, a product supply portion, and a discharge portion with a discharge orifice. A spray nozzle assembly is removably mounted to the hollow mounting chamber. The assembly has a propellant supply tube having an outer surface, a discharge end for discharge of propellant fluid, an outer seal sealable against the inner surface of the mounting chamber, and an inner seal slidably engageable with the outer surface of the propellant supply tube, in a fluid tight manner. An actuator urges the discharge end of the spray nozzle between an end stop position wherein the discharge end is adjacent the discharge orifice, and a wide open position wherein the discharge end is spaced apart from the discharge orifice.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: January 23, 2007
    Inventors: Allan D. Whitefoot, Richard E. Magoon
  • Patent number: 7100366
    Abstract: An apparatus for posttreatment of exhaust gases of an internal combustion engine, using a reducing agent to be introduced into the exhaust gases, in particular a urea or a urea-and-water solution, having an improved mixing chamber into which stored reducing agent, via a reducing agent line, and compressed air via a compressed air line can be introduced to create a reducing agent-air mixture, and means for preventing a reverse flow of reducing agent or reducing agent-air mixture from the mixing chamber into the compressed air line are provided which have a spring-loaded sealing hose. This arrangement assures secure sealing off of an attachable compressed air system from the corrosive reducing agent.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: September 5, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Hager, Sven Huber, Gerhard Mueller, Michael Offenhuber
  • Patent number: 7073734
    Abstract: The invention includes a spraying device (10) for producing a precise degree of liquid droplet generation on a repeatable basis by combining a specified rate of regulated flow of liquid material with a regulated flow of high-pressure air. The spraying device (10) includes an electric or engine driven direct drive compressor (12). Coupled to the compressor (12) is an air storage tank (14) providing air pulsation reduction to the regulated air and serves as a reservoir for excess airflow generation. A Venturi nozzle (18) is connected to the compressor (12). A liquid supply tube (24) uses a fixed or variable restriction to regulate the liquid flow to the nozzle (18). The vacuum in the liquid supply line (24) draws this liquid flow and mixes the liquid externally with the regulated air in exacting proportions forming specified liquid droplet sizes. The device (10) uses air and liquid regulation combined with a Venturi nozzle (18) and is able to generate extremely consistent liquid droplet sizes.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: July 11, 2006
    Assignee: Advanced Specialized Technologies, Inc.
    Inventors: Bruce Dorendorf, Veryln Ripley
  • Patent number: 6827299
    Abstract: A liquid spray module which can be individually used, or which can be easily mounted in ganged side-by-side relation with a plurality of such modules. Each module includes a spray gun cartridge having liquid passages through the liquid to be sprayed, is directed and one or more air passages through which pressurized air may be directed for assisting in atomization of the liquid and controlling operating movement of a valve needle. Each spray gun cartridge further includes a manifold body having a central bore into which the spray gun cartridge is removably mounted and liquid and air inlet and outlet passages which communicate with the liquid and air spray gun cartridge passages. The spray gun cartridge is removable from the manifold body without disconnection of fluid supply lines to the manifold body and without removal of the manifold body from a ganged mounted array of such spray modules.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: December 7, 2004
    Assignee: Spraying Systems Co.
    Inventors: Ronald R. Scotchmur, Gerald P. Ferrazza
  • Patent number: 6805307
    Abstract: The invention includes a spraying device (10) for producing a precise degree of liquid droplet generation on a repeatable basis by combining a specified rate of regulated flow of liquid material with a regulated flow of high-pressure air. The spraying device (10) includes an electric or engine driven direct drive compressor (12.) Coupled to the compressor (12) is an air storage tank (14) providing air pulsation reduction to the regulated air and serves as a reservoir for excess airflow generation. A Venturi nozzle (18) is connected to the compressor (12.) A liquid supply tube (24) uses a fixed or variable restriction to regulate the liquid flow to the nozzle (18.) The vacuum in the liquid supply line (24) draws this liquid flow and mixes the liquid externally with the regulated air in exacting proportions forming specified liquid droplet sizes. The device (10) uses air and liquid regulation combined with a Venturi nozzle (18) and is able to generate extremely consistent liquid droplet sizes.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: October 19, 2004
    Assignee: RD, Incv
    Inventors: Bruce Dorendorf, Verlyn Ripley
  • 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
  • Publication number: 20020033422
    Abstract: Atomized particles within a desired size range (e.g., 1 micron to about 5 microns) are produced from two immiscible fluids, the first a fuel source containing the formulation to be atomized, and a second fluid source which is contained in a pressure chamber surrounding at least the area where the first liquid is to be provided. The invention provides a method for the formation of small, relatively uniform fuel particles for use in internal combustion engines and a nozzle-type apparatus for providing the particles to a combustion chamber.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 21, 2002
    Inventor: Alfonso M. Ganan-Calvo
  • Patent number: 5388767
    Abstract: An apparatus for mixing and spraying a catalyst with a resin onto a surface. The resin and catalyst are internally mixed in confluence with pressurized air. The sprayer is provided with a specially designed check valve to prevent resin and catalyst from entering the pressurized supply line. The construction of the check valve prevents it from clogging or becoming stuck shut during operation.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: February 14, 1995
    Assignee: American Matrix Technologies, Inc.
    Inventor: Jeffrey D. Moses
  • Patent number: 5150836
    Abstract: A method of injecting liquid fuel to an engine which includes delivering a quantity of fuel into a conduit and propelling the fuel along the conduit by a pulse of gas under sufficient pressure to discharge the fuel from an open nozzle into an engine induction passage, or combustion chamber. The pressure and quantity of gas are preferably sufficient to cause the fuel to issue from the nozzle at or near sonic speed. The duration of the pulse of gas may be varied with a variation in the quantity of fuel to improve the fuel metering accuracy with engine load changes.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: September 29, 1992
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Michael L. McKay, Ian R. Thompson, Ralph T. Sarich
  • Patent number: 5110051
    Abstract: A squeeze sprayer device is attached to a squeezable container of fluid. The device includes a capped cylinder containing an axially moveable discharge valve in the form of an air piston which unseats in response to air pressure to open the discharge upon squeezing the container for producing a fine mist spray as pressurized air admixes with the liquid at the discharge orifice. A one-way valve controlled air vent on the piston closes during the spray operation. Upon release of squeeze pressure, the piston returns, its one-way valve opens for venting, and the piston seal cuts off the spray.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: May 5, 1992
    Inventor: Robert A. Bennett
  • Patent number: 4901926
    Abstract: A tub including a fluid system has a pump which includes a suction side and a pressure side; a nozzle for introducing a water-and-air mixture into the tub; the nozzle having a nozzle portion; a pressure line connecting the pressure side of the pump with the nozzle portion; a suction opening provided in a bottom region of the tub; and a suction line connecting the suction side of the pump with the suction opening. The fluid system further has a valve provided in the nozzle portion for cutting off fluid flow to the tub; an overflow line having a closable vent opening and being coupled to the suction side of the pump; a device for selectively allowing or blocking fluid communication between the overflow line and the suction line of the pump; and a supply source for introducing a cleaning agent at a location upstream of the nozzle as viewed in a direction of fluid flow therethrough.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: February 20, 1990
    Assignee: Hoesch Metall & Kunststoffwerk GmbH & Co.
    Inventor: Manfred Klotzbach
  • Patent number: 4848665
    Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjustment or replacement of the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: July 18, 1989
    Assignee: Graves Spray Supply Co., Inc.
    Inventor: James E. Smith
  • Patent number: 4709515
    Abstract: An apparatus by which wet sandblasting operations may be carried out with the operator disposed adjacent the discharge nozzle of the system having full control over the air, sand and liquid supplied to the discharge nozzle through the utilization of a single airflow control valve.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: December 1, 1987
    Inventors: Henry Copeland, Steve M. Copeland
  • Patent number: 4283012
    Abstract: A nozzle for spraying food ingredients including an inner orifice for the ingredients and an outer orifice for spray air. A piston is reciprocable in a cylinder within a housing above the orifices. Attached to the piston is a clean-out plunger that extends through an ingredient delivery tube into the inner nozzle orifice as the piston reciprocates, thereby cleaning and unclogging the inner orifice. Displacement of the piston is caused by compressed control air supplied through two air ports in the cylinder on opposite sides of the piston. Reciprocation of the piston can be initiated by a timer or by a manual override.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: August 11, 1981
    Assignee: Par-way Mfg. Co.
    Inventor: Harold W. Hanson
  • Patent number: 4228958
    Abstract: A spray device having a body member including a nozzle at one end thereof formed with an orifice and a pressure chamber formed in the other end thereof. The body member is provided with a first passage which serves to deliver sprayable liquid to the orifice under the control of an axially movable needle valve which is adapted to open and close the orifice. A second passage is formed in the body member for simultaneously directing pressurized air to the pressure chamber and to the nozzle for atomizing the sprayable liquid as it flows through the orifice.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: October 21, 1980
    Assignee: General Motors Corporation
    Inventor: James C. Perry
  • Patent number: 4180011
    Abstract: The inside surfaces of longitudinal seams on can bodies are sprayed with a coating by moving the can bodies longitudinally along an arm with the seams spaced vertically above the arm. An air spray nozzle mounted on the arm is positioned for air spraying a coating material vertically upwardly against the inside surfaces of the longitudinal seams as the can bodies move past the nozzle.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: December 25, 1979
    Assignee: The Sherwin-Williams Company
    Inventor: Frank E. Halicki
  • Patent number: 4084934
    Abstract: A nozzle for mixing a high pressure gas, a liquid fuel and water and finely dividing the latter two is connected in fluid communication with another nozzle facing an impact disperser. The mixture spouted through the latter nozzle collides with the impact disperser to be dispersed into a combustion chamber. A stream adjustment disposed around the second nozzle encircles the disperser to determine an angle at which the finely divided fuel and liquid particles are dispersed in the combustion chamber. Also an apertured paraboloidal surface encircling a nozzle can oppose to a cavity resonator to generate an impulsive wave with a high pressure gas spouted through the nozzle to finely divide liquid particles from that nozzle in the form of an emulsion.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: April 18, 1978
    Assignee: Mitsubishi Precision Co., Ltd.
    Inventor: Toshiharu Kumazawa
  • Patent number: 4076173
    Abstract: An atomizer, particularly suitable for atomizing grease or lubricating compositions and useful in the foundry industry for lubricating molds, comprises a chamber in which is mounted a piston which is displaced from a rest position to an operative position by air under pressure against the effect of a spring operable to urge the piston to the rest position. Air under pressure is admitted to the chamber through an air inlet which is in constant communication with an outlet to the chamber by way of an air passage through the piston. An inlet for the composition to be atomized is controlled by a valve and opens to the chamber at a location at which it is closed when the piston is in the rest position and at which it communicates, in the operative piston position, with the air passage through a further passage provided in the piston so that the composition to be atomized is drawn by a Venturi effect into the air passage and entrained in the air flowing therethrough.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: February 28, 1978
    Inventors: Danizzo Taccon, Gloriano Taccon
  • Patent number: 3993246
    Abstract: Pneumatic nebulizer and method for uniformly dispersing variable amounts of flowable liquid in a gas to form a stable dispersion having the appearance of a natural fog and consisting essentially of liquid particles having a maximum particle size below about 20 microns diameter and having an average particle size well below about 10 microns diameter suspended in said gas. The liquid is forced at a variable rate into a gas flow, at an angle thereto, through an orifice having a width of 0.010 or less inch to stress the liquid prior to contact with the propellant gas, and is contacted with the propellant gas as it emerges from the orifice in stressed condition for conversion into a stable dispersion having the appearance of a natural fog.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: November 23, 1976
    Inventors: Elisha W. Erb, Darrel R. Resch
  • Patent number: 3986672
    Abstract: A gun for spraying resin and catalyst and for holding an air-powered chopper that chops and deploys fiberglass, wherein the gun has an air-powered spray release valve, and has an air control valve operated by a single trigger to separately control the flow of air to the spray release valve and to the chopper. A nozzle plate at the front end of the spray gun has a convex rearward surface with two holes for receiving nozzle inserts, the holes being formed perpendicular to the convex surface so the sprays from the two nozzles cross a short distance in front of the gun.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: October 19, 1976
    Inventors: Robert L. Smith, Gary L. Smith