For Sequentially Opened Valves Patents (Class 239/528)
  • Patent number: 9782785
    Abstract: A spray gun with a gun body having a handle region and having a head which is equipped with a cartridge which has an angled, tubular region as an inlet for a material-conducting channel which runs through the cartridge and ends in an outlet region which is arranged at the front end of the head of the spray gun, wherein the inlet region of the cartridge is connected or is connectable to a storage container for the material to be sprayed, and wherein the cartridge preferably guides at least one material-conducting component of the spray gun. The cartridge is held fixedly, but releasably, on the head of the spray gun by means of a screw collar ring, wherein the screw collar ring is preferably supported on the cartridge and/or on or in the head of the spray gun by at least one mechanism.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: October 10, 2017
    Assignee: SATA GMBH & CO. KG
    Inventors: Jens Brose, Alexander Tschan, Peter Dettlaff
  • Patent number: 9327300
    Abstract: A paint spray gun for use in association with a HVLP turbine blower and an attachable paint container divides input air flow into two horizontally adjacent channels. Air flow through one channel remains open whereas air flow through the second channel may be varied by a side air controller such that when air flow is cut off from the second channel, the paint mixture is sprayed in a substantially circular shape whereas when air flows through the second channel the paint mixture is sprayed in a substantially fan shape. In another embodiment, a rotatable nipple is positioned to redirect some air flow from the channels to drive paint from the paint container.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: May 3, 2016
    Assignee: FUJI INDUSTRIAL SPRAY EQUIPMENT LTD.
    Inventors: Jui-Chuan Chen, Mark Rosin, Paul Michael Smith
  • Patent number: 8939387
    Abstract: A spray gun, which is convertible for use with and without an extension wand, may use the valve mechanism and nozzle attached adjacent to the handle of the gun. When spraying requires the spray to be released away from the gun handle and for spot applications of the spraying liquid, the spraying nozzle is removed and the extension wand or tube is attached to the gun handle. The valve assembly remains in place and another valve assembly and nozzle is provided at the end of the extension furthest away from the handle. A rod is attached to and extends between the valves so that they both move together from closed to open positions responsive to the trigger of the spray gun. When the valves are closed, there is no spraying liquid in the extension. The valving is dripless both with and without the extension.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: January 27, 2015
    Assignee: Chapin Manufacturing, Inc.
    Inventor: James R. Fontaine
  • Patent number: 8579160
    Abstract: A dispensing gun has a gun body, a first component inlet, a second component inlet, a dispense head, a first valve, a second valve, a clamp, and a trigger. The component inlets are attached to the gun body for receiving components. The dispense head is for dispensing the components. The valves are attached to the gun body and there are valve stems for controlling the dispensing of the components. The clamp has an upper portion and a lower portion, with the first and second valve stems positioned in between the upper and lower portions. The two portions are attached such that the first and second valve stems move with movement of the valve actuator in a direction parallel to the axes of the valve stems. The trigger is attached to the gun body and controls movement of the clamp.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: November 12, 2013
    Assignee: Graco Minnesota, Inc.
    Inventors: Jonathan R. McMichael, Steven R. Sinders
  • Patent number: 8424781
    Abstract: A power sprayer or spray device for use with a faucet. The spray device may include a spray mode and a stream mode of operation.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: April 23, 2013
    Assignee: Masco Corporation of Indiana
    Inventors: Michael Scot Rosko, John D. Vogel, Patrick B. Jonte
  • Patent number: 8312896
    Abstract: A compressed gas-aided coating dispensing device includes a valve controlling the flow of compressed gas through the device. The device includes a port for coupling to a source of compressed gas and a port through which the compressed gas flows downstream from the valve. The valve includes a first valve member and a first seat cooperating to control flow through the device, and an operating member for controlling the relative positions of the first valve member and first seat. The valve further includes a second valve member and a second seat. The operating member also controls the relative positions of the second valve member and the second seat. The operating member controls the relative positions of the first valve member and first seat and the second valve member and second seat.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: November 20, 2012
    Assignee: Illinois Tool Works Inc.
    Inventor: James P. Baltz
  • Patent number: 8152078
    Abstract: A faucet spray head or gun body arrangement, including a spray gun body, a spray gun press handle, a spray gun inner core tube and control means, the spray gun press handle being movably fixed on the spray gun body, the spray gun inner core tube being disposed in the spray gun body, and the control means engaging with the spray gun inner core tube and the spray gun press handle, wherein two outlet waterways are provided in the spray gun inner core tube, and the control means is provided with a movable central pin controlling and shifting the two outlet waterways of the spray gun inner core tube.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 10, 2012
    Assignee: Masco Corporation of Indiana
    Inventors: Yan Jianglin, Chen Ximin
  • Publication number: 20110266371
    Abstract: A spray gun, which is convertible for use with and without an extension wand, may use the valve mechanism and nozzle attached adjacent to the handle of the gun. When spraying requires the spray to be released away from the gun handle and for spot applications of the spraying liquid, the spraying nozzle is removed and the extension wand or tube is attached to the gun handle. The valve assembly remains in place and another valve assembly and nozzle is provided at the end of the extension furthest away from the handle. A rod is attached to and extends between the valves so that they both move together from closed to open positions responsive to the trigger of the spray gun. When the valves are closed, there is no spraying liquid in the extension. The valving is dripless both with and without the extension. When the trigger is actuated for spraying, spraying liquid under pressure as from a sprayer tank passes through the first valve, the extension tube, and the second valve and exits via the spraying nozzle.
    Type: Application
    Filed: May 2, 2011
    Publication date: November 3, 2011
    Inventor: James R. Fontaine
  • Patent number: 7826930
    Abstract: A networked delivery system and method for controlling operation of a spraying system includes nozzles for emitting an agrochemical according to a predetermined spray pattern and flow rate; vibration sensors located adjacent an agricultural spray system component to sense vibrations of the agricultural spray system component, such as spray nozzles. The networked delivery system also includes a control area network with a computer processor in communication with the vibration sensors. The processor conveys information to an operator regarding the agricultural spray system component based on the sensed vibrations. The processor also actuates each of the agricultural spray system components such as the spray nozzles to selectively control each of the nozzles or a designated group of the nozzles.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: November 2, 2010
    Assignee: Capstan AG Systems, Inc.
    Inventors: Durham Kenimer Giles, Duane Needham
  • Publication number: 20100187335
    Abstract: What is disclosed is a self contained, cordless, handheld spray gun. The spray gun comprises a fluid container in intercommunication with at least one fluid nozzle orifice and a source of pressurized gas in intercommunication with at least one gas nozzle orifice and one fan nozzle orifice. The spray gun is actuated by pulling a trigger that actuates the gas flow to the nozzle and further actuation of which opens at least one valve so that the fluid, such as paint, primer, stain, varnish, sealant or the like, can flow to a fluid chamber, atomized, and sprayed through a fluid nozzle orifice out onto the article to be painted.
    Type: Application
    Filed: March 31, 2008
    Publication date: July 29, 2010
    Inventor: Tony Reedy
  • Patent number: 7742842
    Abstract: A networked delivery system and method for controlling operation of a spraying system includes nozzles for emitting an agrochemical according to a predetermined spray pattern and flow rate; vibration sensors located adjacent an agricultural spray system component to sense vibrations of the agricultural spray system component, such as spray nozzles. The networked delivery system also includes a control area network with a computer processor in communication with the vibration sensors. The processor conveys information to an operator regarding the agricultural spray system component based on the sensed vibrations. The processor also actuates each of the agricultural spray system components such as the spray nozzles to selectively control each of the nozzles or a designated group of the nozzles.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: June 22, 2010
    Assignee: Capstan Ag Systems, Inc.
    Inventors: Durham Kenimer Giles, Duane Needham
  • Patent number: 7686237
    Abstract: A manually operated sprayer for a container of liquid to be sprayed includes variable volume pump means having liquid inlet and outlet means for discharging the contents of the container. The sprayer further includes a control module having product and vent valves reciprocably disposed therein, the product and vent valves being simultaneously reciprocable by means of the manual actuator between valve open and valve closed positions. In the valve open position, the product and vent valves respectively prevent flow of product and air respectively into the liquid inlet means and into a vent passage in communication between atmosphere and an interior of the container, and in the vent closed position, the product and vent valves respectively enable flow of product and air respectively into the liquid inlet means and into the vent passage.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 30, 2010
    Assignee: MeadWestvaco Calmar, Inc.
    Inventors: Linn D. Wanbaugh, Robert J. Good, Steve Sweeton
  • Patent number: 7661609
    Abstract: A pressure washer wand having first and second valves that can be opened in a predetermined or user-adjustable manner through movement of a trigger. In one form, the first and second valves are opened sequentially in response to movement of a trigger to transition from a no-flow condition to a relatively low pressure flow and thereafter to a relatively high pressure flow. In another form, the sequencing of the valves can be changed such that only the first valve, which provides a relatively low pressure flow, is opened in response to movement of the trigger. A pressure washing system having the pressure washer wand is also provided.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: February 16, 2010
    Assignee: Black & Decker Inc.
    Inventors: Shane Dexter, Dinesh Koka
  • Publication number: 20100006674
    Abstract: A fluid control spray gun stops, starts and controls flow of fluids through a nozzle. The gun has a fluid entry port; a trigger that controls fluid flow by movement of a pin; a handle that moves the trigger; a fulcrum point on the handle; three floating pins comprising in order a first floating pin, a second floating pin and a third floating pin, the three floating pins being present in an upper region of the handle; a hand grip portion in the handle; the upper region of the handle allowing engagement between the first floating pin and the trigger; and the upper region of the handle having a forward end allowing engagement of the third floating pin with a stabilizing element.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 14, 2010
    Inventor: Eric Stenborg
  • Patent number: 7017838
    Abstract: A spray gun having a gun body; a nozzle assembly arranged on the gun body; a compressed air supply channel located in the gun body, controlled by a valve assembly, a regulator for adjusting the supply of the spray material, an actuating element for actuating the valve assembly) and the regulator and a pressure measuring device. A pressure measuring device, resistant to dirt, that contains a pressure sensor integrated into the gun body and is connected to the compressed air supply channel via a capillary (43) located within the gun body.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: March 28, 2006
    Assignee: Sata-Farbspritztechnik GmbH & Co. KG
    Inventor: Ewald Schmon
  • Patent number: 7004404
    Abstract: A spraying apparatus for spraying liquid surface treatment material which includes a gas inlet, a liquid inlet and an outlet nozzle. The apparatus also has a needle valve for regulating the supply of surface treatment material to the nozzle. The needle valve is at least partially located within a gas outlet chamber and is adapted so as to cause minimal disruption to the gas flow from the gas inlet to the nozzle. To further aid gas flow efficiency, the gas supply passage is substantially straight, the outlet chamber has a laterally outwardly tapering inlet and an inwardly tapering outlet and a smooth radius of curvature from the gas supply passage into the outlet chamber. There is also provided a control means for controlling the axial movement of the needle valve, the control means being provided with indicator means so as to provide an accurate, repeatable control means.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: February 28, 2006
    Assignee: G Vincent Limited
    Inventor: George Walter Robinson
  • Patent number: 6585173
    Abstract: The invention relates to a paint spray gun with a paint nozzle placed on a gun body, an air nozzle placed around the paint nozzle, a compressed air valve placed within a piston borehole in the gun body, a compressed air borehole running through a handgrip of the gun body to the piston borehole, and a pressure-sensing and pressure display device placed in the hand grip. For sensing and displaying the spray pressure, a tube is placed in the compressed air borehole at a distance from its inner wall. The tube forms, in the interior, a channel for the compressed air supply to a part of the piston borehole placed upstream of the compressed-air valve, and borders an intermediate space between its exterior and the inner wall of the compressed air borehole.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: July 1, 2003
    Assignee: Sata-Farbspritztechnik GmbH & Co.
    Inventors: Ewald Schmon, Peter Dettlaff
  • Publication number: 20030071144
    Abstract: An air brush is shown and described including a replaceable, rotatable, nozzle head including a media port and a needle arrangement. Media contamination of the air brush is limited to the removable nozzle head, thereby making the air brush body free of media contamination. By rotatable mounting of the nozzle head, a variety of media sources are made available, ranging from gravity fed devices such as media top and side cups to suction fed devices such as media jars. The trigger arrangement of the present invention presents an actuator shaft movable longitudinally in response to trigger movement for engagement of the needle of the nozzle head. Mechanical coupling between the air brush body and nozzle head is limited to structural coupling for mounting the nozzle head and an abutment relationship between the actuator shaft and the needle. This allows rotational freedom of movement for the nozzle head relative to the body, and also ease of dismounting by simply separating the nozzle head from the air brush body.
    Type: Application
    Filed: July 30, 2002
    Publication date: April 17, 2003
    Inventor: William H. Naemura
  • Patent number: 6533187
    Abstract: The spray gun includes a primary port for receiving a primary material such as adhesive or similar materials, for dispensing. The spray gun further includes a secondary port to receive an aerosol-based cleaner which is stored in an aerosol container within the handle of the spray gun. The valves associated with the primary and secondary ports are sequenced such that during ordinary depression of the trigger to apply the primary material, the aerosol-based cleaner is momentarily “poofed” through the nozzle to clean the nozzle prior to the application of the primary material. After the primary material has been applied and the trigger is released, the aerosol-based cleaner is again momentarily “poofed” through the nozzle to clean the nozzle.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: March 18, 2003
    Assignee: Illinois Tool Works Inc.
    Inventor: Kevin J. May
  • Publication number: 20020109019
    Abstract: The spray gun includes a primary port for receiving a primary material such as adhesive or similar materials, for dispensing. The spray gun further includes a secondary port to receive an aerosol-based cleaner which is stored in an aerosol container within the handle of the spray gun. The valves associated with the primary and secondary ports are sequenced such that during ordinary depression of the trigger to apply the primary material, the aerosol-based cleaner is momentarily “poofed” through the nozzle to clean the nozzle prior to the application of the primary material. After the primary material has been applied and the trigger is released, the aerosol-based cleaner is again momentarily “poofed” through the nozzle to clean the nozzle.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 15, 2002
    Inventor: Kevin J. May
  • Patent number: 6425533
    Abstract: The spray gun has an air cap that generates a spray mixture of liquid and air. The air cap includes a fluid valve for controlling the delivery of liquid and a separate air valve in the body of the spray gun is provided for controlling delivery of air. A control mechanism assembly for both of the valves is located axially within a central bore extending substantially the length of the spray gun. The control mechanism is actuated by means of a cam and follower arrangement with the cam surface provided on the rear of a manually operable trigger. The fluid valve is fully adjustable separately from the air valve but the control mechanism assembly includes a common control member that is in engagement with the control mechanism and operates both the fluid and air valves.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: July 30, 2002
    Assignee: G Vincent Limited
    Inventors: Mark Golder Shilton, Peter Miles, George Walter Robinson, Jeff Vincent Robinson
  • Patent number: 6402058
    Abstract: An aerosol spray gun used selectively in two spraying modes of small and large patterns is provided. The aerosol spray gun has a throttle valve, an air duct, and a coupling link. The throttle valve has an internal air duct for supplying pressurized air to a patterning air outlet which shapes a paint spraying stream jetted out from the aerosol spray gun, and has a movable valve element to which a compressed spring applies force to open the valve. The air duct created at the tip of the movable valve element supplies a small volume of air from the internal air duct to the patterning air outlet while the movable valve element seats on a valve seat. The coupling link, coupling the movable valve element to the trigger, has an elongated hole to disconnect the trigger from the movable valve element without cooperative relation between them from an initial stage where an operator begins to squeeze the trigger to an intermediate stage before the operator fully squeezes the trigger.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: June 11, 2002
    Assignee: Ransburg Industrial Finishing K.K.
    Inventors: Shuzo Kaneko, Shigefumi Hashimoto
  • Patent number: 6378789
    Abstract: A combination spray apparatus which allows for the selection of several different flowable materials to be sprayed from a single unit and at the site of the unit itself. In the preferred manner, the spray apparatus includes a trigger nozzle as well as the selection of two different materials to be sprayed through a second barrel portion. An eductor it utilized to draw selected materials into a spray stream. The combination spray apparatus is operable with water pressures which are customary to most cities and industries.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 30, 2002
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: Charles E. Seaman, Jr., Jeffrey Y. Chen, John A. Boticki, Carey W. Zimmerman
  • Publication number: 20020005441
    Abstract: An air brush is shown and described including a replaceable, rotatable, nozzle head including a media port and a needle arrangement. Media contamination of the air brush is limited to the removable nozzle head, thereby making the air brush body free of media contamination. By rotatable mounting of the nozzle head, a variety of media sources are made available, ranging from gravity fed devices such as media top and side cups to suction fed devices such as media jars. The trigger arrangement of the present invention presents an actuator shaft movable longitudinally in response to trigger movement for engagement of the needle of the nozzle head. Mechanical coupling between the air brush body and nozzle head is limited to structural coupling for mounting the nozzle head and an abutment relationship between the actuator shaft and the needle. This allows rotational freedom of movement for the nozzle head relative to the body, and also ease of dismounting by simply separating the nozzle head from the air brush body.
    Type: Application
    Filed: October 14, 1997
    Publication date: January 17, 2002
    Inventor: WILLIAM H. NAMURA
  • Patent number: 6105881
    Abstract: An air brush having an easily installed nozzle member and a cost-effective extremity end member. The nozzle member is held between a nozzle cap and an outlet end of the main body of the air brush. The nozzle member is made such that it's front and rear parts are substantially conical in shape. An insertion hole extends through and is formed in the nozzle member. The rear part of the nozzle member is inserted into the tapered hole at the outlet end of the main body of the air brush. The front part of the member is internally fitted into the nozzle cap and secured. The nozzle member is made such that it's outlet end is composed of the extremity end member. The extremity end member is made of SPM material which is harder, stronger and more durable than the other portions of the device, and the extremity end member includes a very strong nozzle section in order to prevent the occurrence of corrosion or cracks.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: August 22, 2000
    Assignee: B. B. Rich Co., Ltd.
    Inventor: Katsuaki Kitajima
  • Patent number: 5711485
    Abstract: The invention is directed to an improved pneumatic valve for use in paint spray guns of the type having a pneumatic trigger operating mode. When actuated by a trigger, the valve vents a pressurized chamber in the spray gun, causing a piston to move to open air and fluid valves for initiate spraying. The pneumatic valve is in the form of a snap in module which is easily replaced without the need to remove the spray gun from the spray booth and without the need to replace a number of small parts. A small return spring and the pressurized air urge a valve poppet to a closed position. When the trigger is operated, the poppet is unseated to vent the pressurized chamber in the spray gun. The flow of air through the valve during painting prevents dirt and paint overspray from accumulating on the valve.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: January 27, 1998
    Assignee: Ransburg Corporation
    Inventor: Roger D. Wheeler
  • Patent number: 5667143
    Abstract: A spray gun includes a barrel portion and a handle portion having a control lever pivotally mounted to a lower end of the handle controlling a valve system. The spray gun includes an interchangeable fitting for receiving two fluid lines. The lever is movable between a first lockable spray position, opening the valve system to spray one fluid, and a second spray position spraying two fluids.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: September 16, 1997
    Assignee: Wanner Engineering, Inc.
    Inventors: Timothy L. Sebion, Frederick A. Powers, Calvin H. Pasvogel
  • Patent number: 5558276
    Abstract: A hot air gun for drying a sprayed air-dryable liquid material is disclosed. The gun includes a hot air gun connected to both a source of hot pressurized air and a source of flowable air-dryable liquid material. The gun includes a body having a handle assembly and a spraying assembly. The handle assembly includes a depressible trigger and first knob for adjusting the amount of flowable liquid material in the spray and a second knob for adjusting the pattern of the spray. The spraying assembly includes a spray nozzle and control valves operably connected with the trigger for controlling the flow of pressurized hot air and liquid material. An air diverter is fitted between a port for allowing passage of air into the gun and the spray nozzle for diverting hot compressed air onto liquid material sprayed on a substrate.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: September 24, 1996
    Assignee: Tram-7 Precision, Inc.
    Inventors: Mark C. Barrett, Coy Barrett
  • Patent number: 5529245
    Abstract: A mixing and dispensing gun with a valve body containing a pair of liquid inlets, a pair of separate liquid outlets, a gas outlet and a removable mixing and dispensing nozzle. The nozzle contains the ingredients while they are being mixed and a gas outlet is positioned within the nozzle so as to propel the mixed ingredients to the application area. The nozzles and gun body include cooperating inlet and outlet ports such as nipples and recesses to permit alignment and sealing when the nozzle is positioned for use. The gas valve is arranged so that it may be operated simultaneously or in sequence with the liquid valves.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: June 25, 1996
    Assignee: Insta-Foam Products
    Inventor: Daniel P. Brown
  • Patent number: 5470227
    Abstract: A cutting torch allows the preheat oxygen and fuel valves to remain in a preset position while the torch is off. The cutting torch has preheat oxygen and fuel cutoff valves mounted in line with the adjusting valves. The cutoff valves are both operated linearly, each having an axially moving plunger. An actuator simultaneously moves the cutoff valves between opened and closed positions. The actuator has a locking device to lock them in the opened and closed positions. A pilot flame igniter utilizes a piezoelectric crystal and a pilot fuel valve positioned side by side with parallel axes. An igniter actuator in a single stroke opens the pilot fuel valve and causes an electrical spark to ignite the pilot flame.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: November 28, 1995
    Assignee: Victor Equipment Company
    Inventors: Carl W. Mims, Roger D. Zwicker
  • Patent number: 5460203
    Abstract: A trigger operated air valve suitable for controlling both the flow of air to and the flow of feedback air from a nozzle assembly in high volume low pressure (HVLP) spray guns. A trigger moves a spindle against the pressure of a spring. As the trigger is moved, a first valve is opened to initiate a main flow of air to the spray gun nozzle assembly prior to opening a second valve which initiates the flow of feedback air from the nozzle assembly. When the trigger is released, the second valve is closed to terminate the flow of feedback air prior to closing the first valve to terminate the main flow of air to the spray gun nozzle assembly.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: October 24, 1995
    Assignee: ITW Limited
    Inventors: Rowland C. Smith, Anthony J. Bate
  • Patent number: 5305930
    Abstract: The actuating device (1) is adapted to be incorporated into a dispenser provided with a valve (41) having a tubular end (43) which must be pressed in order to discharge the product. The device (1) includes a poppet valve (10), the movement of which is substantially transverse to the axis of the end (43). Action by the user on the push-button results, on the one hand, in opening of the poppet valve (10) and, on the other hand, in pressure being exerted on the tubular end (43) by the use of a film hinge (39). The vertical movement of the push-button is converted into a horizontal movement of the popper valve by means of an orthogonal joint. The product to be dispensed still pass into a chamber rendered airtight by the poppet valve (10) and a flexible collar (13), so that the product, especially a self-foaming product, remains hermetically sealed in the chamber during periods of non-use.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: April 26, 1994
    Assignee: L'Oreal
    Inventor: Vincent De Laforcade
  • Patent number: 5299741
    Abstract: A spray gun is designed for use with a texture pumping unit which requires of air through the spray gun in order to start the pump. A bleed valve is provided which alternatively directs air to the front of the gun or may be bled to the outside to allow the pumping unit to operate without the gun actually spraying atomized material.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: April 5, 1994
    Assignee: Graco Inc.
    Inventor: Edward P. Murphy
  • Patent number: 5289974
    Abstract: An improved hand held spray gun. The spray gun includes at least one manual trigger which when squeezed moves a valve needle to initiate fluid flow. A knob is provided to adjust the maximum fluid flow when the trigger is squeezed. When the trigger is released, a compression spring returns the valve needle to its closed position. An over travel spring is compressed only if an excessive force is applied to the trigger to prevent damage to the spray gun. The over travel spring is stronger than the valve needle return spring so that it compresses only after the spray gun is fully on. If the maximum fluid flow adjustment knob is turned too far, compressed air is vented through the knob as a tactile warning to the spray gun operator to not turn the knob further. The vented air also may whistle to provide an audible warning that the knob should not be turned further.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: March 1, 1994
    Assignee: Ransburg Corporation
    Inventors: Thomas E. Grime, Roger T. Cedoz, Roger D. Wheeler, John F. Schaupp
  • Patent number: 5287887
    Abstract: A handle operated flow control valve has a body that defines first and second spaced inlet passages that extend from spaced first and second inlets and join in the vicinity of a first flow control valve for ducting pressurized flows of fluid from one or both of the inlets into an outlet passage for discharge through a nozzle. The first flow control valve has a first valve stem that moves in response to operation of a trigger handle. When the trigger handle is operated relatively gently within an initial range of movement, only the valve stem of the first flow control valve is moved out of its closed position, whereby a controlled flow of a first fluid such as pressurized water is ducted from the first inlet passage into the outlet passage for discharge.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 22, 1994
    Inventor: Robert W. Hengesbach
  • Patent number: 5284301
    Abstract: A trigger for opening a valve against fluid pressure has two alternate pivot points. The first pivot point has a relatively higher mechanical advantage to make it easier to push the valve against the fluid pressure. The second pivot point has a relatively lower mechanical advantage to increase the distance travelled by the valve in response to further movement of the trigger to make it easier to control the flow of fluid pass the valve. The trigger thereby reduces the force required to open the valve without decreasing the range of motion of the valve.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: February 8, 1994
    Assignee: Wagner Spray Tech Corporation
    Inventor: Joseph W. Kieffer
  • Patent number: 5267693
    Abstract: A liquid paint spray gun of the type having a barrel through which compressed air flows to a nozzle, a liquid outlet valve centrally positioned within the barrel adjacent the nozzle for providing a low pressure supply of liquid to be entrained and atomized in the pressurized air at the nozzle for spraying onto a surface, and an improved liquid supply connector block for supplying liquid to the liquid outlet valve, the improved connector block comprising a hollow central body portion having non-stick internal surfaces and a plurality of external projections from the central body portion spaced therearound for supporting the hollow central body axially aligned within the barrel with space therearound for compressed air to flow to the nozzle end of the barrel; an orifice through one of the external projections sealingly connectable to a pressurized liquid supply; and a valve assembly formed in the connector block for interconnecting the liquid outlet valve in fluid communication with the hollow body portion, for
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: December 7, 1993
    Inventor: Barry A. Dickey
  • Patent number: 5236129
    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: May 27, 1992
    Date of Patent: August 17, 1993
    Assignee: Ransburg Corporation
    Inventors: Thomas E. Grime, James P. Baltz, Roger T. Cedoz
  • Patent number: 5078323
    Abstract: An improved control shaft seal and air valve for a portable paint gun with the seal having a radial clearance with the shaft except at a shaft sealing surface of limited axial length. The shaft seal has a conical surface radially outward of the shaft sealing surface to provide a sealing surface and also to provide transfer of axial forces at that surface to a radial direction to provide a force to urge the shaft sealing surface against the control shaft. A second conical surface of the seal provides for retention of the seal on an air valve spring when the paint gun is disassembled. An improved air valve for portable paint guns is also disclosed having a rigid axial hub and radial support carrying a relatively flexible rim portion adapted to engage a tapered seating surface in the gun.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: January 7, 1992
    Assignee: Wagner Spray Tech Corporation
    Inventor: Peter L. Frank
  • Patent number: 5050804
    Abstract: An improved control shaft seal and air valve for a portable paint gun with the seal having a radial clearance with the shaft except at a shaft sealing surface of limited axial length. The shaft seal has a conical surface radially outward of the shaft sealing surface to provide a sealing surface and also to provide transfer of axial forces at that surface to a radial direction to provide a force to urge the shaft sealing surface against the control shaft. A second conical surface of the seal provides for retention of the seal on an air valve spring when the paint gun is disassembled. An improved air valve for portable paint guns is also disclosed having a rigid axial hub and radial support carrying a relatively flexible rim portion adapted to engage a tapered seating surface in the gun.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: September 24, 1991
    Assignee: Wagner Spray Tech Corporation
    Inventors: John M. Svendsen, Timothy D. Steinberg, Richard W. Gunderson
  • Patent number: 4934603
    Abstract: A hand held spray gun including a gun body, a barrel and a nozzle assembly attached to the front of the barrel. A tubular retainer passes through a portion of the body and is threaded into a passage in the barrel to connect the barrel to the body. A fluid valve actuator extends from the body through the retainer and into the barrel passage for operating a fluid valve in the nozzle assembly. The retainer also functions as a guide for the valve actuator, holds a radial fluid seal for forming a sliding seal against the valve actuator and serves as a stop for a spring biased fluid seal between the valve actuator and the barrel.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: June 19, 1990
    Assignee: The DeVilbiss Company
    Inventor: Charles T. Lasley
  • Patent number: 4759502
    Abstract: An air assisted hydraulic atomizing spray gun for liquid coating materials is characterized by an adjustable air/fluid turn on timing sequence which allows the air to be selectively turned on before, at the same time as, or after the fluid.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: July 26, 1988
    Assignee: Binks Manufacturing Company
    Inventors: Edward A. Pomponi, Jr., Walter Dany
  • Patent number: 4669661
    Abstract: A process and a device (10) are proposed for spraying hot melt glue with which the heated hot melt glue by means of a pneumatically operated extrusion gun can be fed to a nozzle (25), to which pressurized air is supplied for spraying the glue. The pressurized air is heated up by means of a heating cartridge (14) around which the pressurized air is fed in spiral form. The heating cartridge (14) heats up the casing (12) of the extrusion gun simultaneously and controlled.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: June 2, 1987
    Assignee: Beyer & Otto GmbH
    Inventor: Alfred R. Otto
  • Patent number: 4427153
    Abstract: A plural component dispensing nozzle having internal passages for the introduction of at least two components for mixing and dispensing, and having a one piece mixing chamber with impingement orifices axially spaced along the chamber, and having formed as a part thereof sealing flanges to develop the fluid flow passages into the mixing chamber, and to provide an isolation seal between the plural components as well as fluid seals between the flow passages and the nozzle.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: January 24, 1984
    Assignee: Graco Inc.
    Inventor: Thomas J. Schaefer
  • Patent number: 4426039
    Abstract: A control valve for a spray gun which is engageable by a spray gun trigger to release pressurized air and pressurized liquid through the spray gun for spraying in a predetermined sequence. The valve includes a slidable spool axially aligned with a liquid valve and valve seat and connected thereto by an axial valve stem, whereby the slidable spool has a beveled surface thereon, which surface is in contact with a second valve stem aligned in an air passage in the handle of the spray gun for opening and closing an air valve therein. The valve mechanism is actuated by trigger movement, first to open the air valve and second to open the liquid valve to insure the controlled release of pressurized liquid and air for optimum spraying conditions.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: January 17, 1984
    Assignee: Graco Inc.
    Inventor: Kui C. Kwok
  • Patent number: 4361283
    Abstract: A plural component spray gun which can be used as an air atomizing gun for atomizing material at the nozzle for external mixing with a catalyst, and, which is convertible to airless operation. The spray gun has a nozzle body which incorporates passageways for delivering atomizing air and a fluid component to a mixing chamber at the outlet to one of a plurality of nozzles attached to the nozzle body. To convert the spray gun to airless operation, the nozzles are removed, and a sleeve inserted in the air atomizing chamber. One of the nozzles is replaced with an airless type and they are reattached to the gun body. The replaced nozzle has a centrally located annular flange which extends into the air atomizing chamber to hold the sleeve insert in the chamber to seal the air passageway. The centrally located annular flange on the replaced nozzle also includes an annular cavity, into which an insert having an orifice restriction can be inserted for increasing the velocity of the component during airless operation.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: November 30, 1982
    Assignee: Binks Manufacturing Company
    Inventors: Robert D. Hetherington, David O'Reilly
  • Patent number: 4325513
    Abstract: A gun for dispensing a plural component system includes a housing having appropriate connections to a pressurized air supply and pressurized first and second component storage reservoirs. Within the housing are located first and second component feed ports, each having a control valve located in its interior. A valve carrier member is movably located in the housing and is moved by a trigger. The first and the second valves are connected to and moved in response to movement of the valve carrier member. The gun includes a gas passage having a gas valve located therein. The gas valve is also connected to and moves in response to the valve carrier. At the forward end of the housing is a static mixing chamber which has a discharge outlet as well as inlets leading to both of the component feed ports and to the air passage. When the valve carrier is in a first position pressurized air is introduced into the mixing chamber which purges the mixing chamber.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: April 20, 1982
    Inventors: Robert L. Smith, Gary L. Smith
  • Patent number: 4294411
    Abstract: An improved electrostatic spray gun, particularly of the hand-held type, is disclosed including an electrically insulative barrel and nozzle assembly, an electrically insulative air valve module mounted to the rear of the barrel assembly and externally thereof, and an electrically conductive metal handle assembly enclosing the rear end of the barrel and the air valve module. A charging electrode protrudes from the discharge orifice of the nozzle assembly. The flow of air through the barrel and nozzle assembly is controlled by a trigger which actuates the air valve. Actuation of the air valve in turn controls a needle and seat valve assembly close to the discharge orifice of the nozzle assembly to control the flow of coating material through the gun. A resistor is disposed inside the needle valve immediately upstream of the charging electrode.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: October 13, 1981
    Assignee: Nordson Corporation
    Inventors: Donald R. Hastings, Martin J. Harjar
  • Patent number: 4175702
    Abstract: A forced air nucleating jet gun assembly comprised of a nozzle body designed to atomize material at the nozzle for external mixing with a catalyst which is atomized in the handle body of the gun assembly. The nozzle body incorporates passageways for delivering atomizing air deflected counter to the path of a material delivered to a fluid tip. The fluid tip assembly is designed to deflect atomizing air into the path of the material for low-pressure delivery of resin to the jet. An air control valve is incorporated into the nozzle body and is operated sequentially with the material valve to purge the fluid tip prior to delivery or supply of material for atomizing by air. The forced air nucleating system incorporated in the nozzle body delivers resin and air or atomized resin through the fluid tip external mixing with catalyst.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: November 27, 1979
    Assignee: Poly-Glas Systems
    Inventors: Robert D. Hetherington, David W. Goelz
  • Patent number: RE35769
    Abstract: An improved hand held spray gun. The spray gun includes at least one manual trigger which when squeezed moves a valve needle to initiate fluid flow. A knob is provided to adjust the maximum fluid flow when the trigger is squeezed. When the trigger is released, a compression spring returns the valve needle to its closed position. An over travel spring is compressed only if an excessive force is applied to the trigger to prevent damage to the spray gun. The over travel spring is stronger than the valve needle return spring so that it compresses only after the spray gun is fully on. If the maximum fluid flow adjustment knob is turned too far, compressed air is vented through the knob as a tactile warning to the spray gun operator to not turn the knob further. The vented air also may whistle to provide an audible warning that the knob should not be turned further.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: April 14, 1998
    Assignee: Ransburg Corporation
    Inventors: Thomas E. Grime, Roger T. Cedoz, Roger D. Wheeler, John F. Schaupp