Flow Control By Venting Pressure Fluid To Atmosphere Patents (Class 239/347)
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Patent number: 11679916Abstract: A dispensing closure system includes an upper closure portion and a lower closure portion including an axial flow conduit and a vent conduit. The upper closure portion is axially movable relative to lower closure portion between shipping and dispensing positions. A seal is disposed on the lower closure portion over the flow and vent conduits. A peripheral spacing strip is removably secured to the upper closure portion and engages with either the lower closure or the outside of the container to prevent movement. A piercing probe includes piercing elements in alignment with the flow and vent conduits for piercing the seal. In the shipping position, the piercing elements are spaced from the seal. However, when the spacing strip is removed and the upper closure portion is axially moved to the dispensing position, the piercing elements pierce the seal to open the flow conduit and the vent conduit.Type: GrantFiled: June 14, 2022Date of Patent: June 20, 2023Assignee: Silgan Dispensing Systems CorporationInventors: Thanhhung Le, Brandon Ramsuer, John Scott, Frederick Thompson
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Patent number: 8579209Abstract: A gas powered fluid gun for propelling a stream or slug of a fluid at high velocity toward a target. Recoil mitigation is provided that reduces or eliminates the associated recoil forces, with minimal or no backwash. By launching a quantity of water in the opposite direction, net momentum forces are reduced or eliminated. Examples of recoil mitigation devices include a cone for making a conical fluid sheet, a device forming multiple impinging streams of fluid, a cavitating venturi, one or more spinning vanes, or an annular tangential entry/exit.Type: GrantFiled: November 18, 2010Date of Patent: November 12, 2013Assignee: Sandia CorporationInventors: Mark C. Grubelich, Gerold Yonas
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Patent number: 8490892Abstract: A liquid supply assembly is disclosed. The liquid supply assembly may be used in combination with a spraying device or spray gun to apply liquid to a substrate. The liquid supply assembly is particularly suitable for use in systems utilizing pressurized liquid containers.Type: GrantFiled: July 2, 2008Date of Patent: July 23, 2013Assignee: 3M Innovative Properties CompanyInventors: John I. Escoto, Jr., Daniel E. Siltberg
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Patent number: 8418775Abstract: The invention relates to a powder spreader device including a sealed tank (1) with a tapered bottom wall (5), a vessel (2) containing a pressurised spray gas connected to the tank (1) via a feed line (27), control means (20) connected to the vessel (1), and a powder dispensing nozzle (10) connected to the tank, wherein the elongate nozzle (10) includes at least two pressure relief stages (11, 12) for breaking up the dispensed powder jet and forming a uniform and homogenous jet with a relatively low flow rate.Type: GrantFiled: October 27, 2005Date of Patent: April 16, 2013Assignee: Prevor InternationalInventors: Joel Blomet, Patrick Beriou
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Patent number: 8017186Abstract: The present invention provides film forming method and a droplet discharge method for removing bubbles in a pressurizing chamber to prevent defective discharge without disposing a large amount of materials in a droplet discharging device. Before a material is discharged in the droplet discharging device, a step is provided in which reduced pressure is kept in a pressurizing chamber and a material supply portion, which are connected, to remove bubbles that exist in the pressurizing chamber. A flow path connected to the outside such as an opening of a nozzle surface of the pressurizing chamber or a material supply port of the material supply portion is sealed, and pressure in the pressurizing chamber and the material supply portion is reduced from an inlet and outlet connected to the material supply portion with the use of a reduced pressure means such as a pump.Type: GrantFiled: August 15, 2007Date of Patent: September 13, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Gen Fujii
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Patent number: 7845582Abstract: A spray gun reservoir has an oversize central opening 130 at one end allowing liquid to be added to the reservoir for fast filling with reduced risk of spillage. A cap member 132 is connectable to the reservoir and has a spout 115 providing a fluid outlet of reduced size relative to the opening 130 for connection to the spray gun. The reservoir can be disconnected from the cap member 132 when it is desired to add liquid to the reservoir. In this way, the reservoir can be re-filled in use.Type: GrantFiled: October 27, 2003Date of Patent: December 7, 2010Assignee: 3M Innovative Properties CompanyInventors: Stephen C. P. Joseph, Daniel E. Siltberg
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Patent number: 7694896Abstract: Disposable reservoirs for use with spray apparatuses, reservoir-adapter kits, spray assemblies employing such reservoirs, and methods of use are disclosed.Type: GrantFiled: October 25, 2006Date of Patent: April 13, 2010Assignee: Trade Associates, Inc.Inventors: William N. Turnbull, Clifford W. Turnbull
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Publication number: 20090145982Abstract: The invention relates to a powder spreader device including a sealed tank (1) with a tapered bottom wall (5), a vessel (2) containing a pressurised spray gas connected to the tank (1) via a feed line (27), control means (20) connected to the vessel (1), and a powder dispensing nozzle (10) connected to the tank, wherein the elongate nozzle (10) includes at least two pressure relief stages (11, 12) for breaking up the dispensed powder jet and forming a uniform and homogenous jet with a relatively low flow rate.Type: ApplicationFiled: October 27, 2005Publication date: June 11, 2009Applicant: PREVOR INTERNATIONALInventors: Joel Blomet, Patrick Beriou
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Patent number: 7513442Abstract: A hose-end sprayer assembly connectable to at least one container of product to be dispensed has an elongated housing for a venturi tube assembly rotatable about its central axis and devised to selectively open and close a product inlet opening as well as its associated vent valve, an independently controllable liquid carrier valve being provided for opening and closing the carrier liquid flow through the venturi tube duct in the venturi tube assembly can be devised for opening and closing inlet product inlet openings of separately stored chemical products sequentially or simultaneously.Type: GrantFiled: March 12, 2007Date of Patent: April 7, 2009Assignee: MeadWestvaco Calmar, Inc.Inventor: Joseph K. Dodd
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Patent number: 7410106Abstract: A liquid supply assembly is disclosed. The liquid supply assembly may be used in combination with a spraying device or spray gun to apply liquid to a substrate. The liquid supply assembly is particularly suitable for use in systems utilizing pressurized liquid containers.Type: GrantFiled: February 8, 2005Date of Patent: August 12, 2008Assignee: 3m Innovative Properties CompanyInventors: John I. Escoto, Jr., Daniel E. Siltberg
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Patent number: 7407118Abstract: An improved atomization jet assembly for aromatherapy essential oil diffuser wells. It does not loose the cap during handling. It uses the capillary of liquids principal to draw essential oils between the exterior of the jet FIG. 12 and the inner cap profile FIG. 7. The flow of liquid is stopped by a capillary break 40. The Ventura principal is then used to create a low pressure area between the top of the jet ball 44 and the inside radius of the cap 65. An air/oil mixture blows out of the cap orifice 66 with the aid of an air pump. The net result is increased availability of air molecules attaching to oil molecules and making them airborne and breathable.Type: GrantFiled: April 8, 2004Date of Patent: August 5, 2008Inventor: Earl Vaughn Sevy
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Patent number: 7407117Abstract: An improved liquid sprayer assembly for connection to a container (which preferably includes two liquid storage compartments) has a housing that includes a container mount having an underside with at least one structure that is operably interposed with corresponding structure on a neck portion of the container such that the container mount is fixed in a predetermined orientation relative to the container. A cap locks the container mount to the neck portion of the container. Preferably, the at least one structure of the container mount comprises a pair of wedge-shaped wall structures together with a plurality of wall structures that extend in a directional substantially parallel to the central axis of the mount/neck. The wedge-shaped wall structures are radially disposed opposite one another about the central axis of the container mount/neck and fit within wedge-shaped voids defined by the neck portion of the container.Type: GrantFiled: April 27, 2005Date of Patent: August 5, 2008Assignee: MeadWestvaco Calmar, Inc.Inventor: Joseph K. Dodd
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Patent number: 7389948Abstract: An airbrush spraying device particularly adapted for the application of beauty products includes a tubular main body that is attached to a pressurized air supply. A control switch is situated on a top side of the airbrush. The control switch is connected to a mechanism that controls an air valve and a position of a makeup flow control mechanism. The air valve is an on/off mechanism, but the makeup flow control mechanism includes adjusting means so that the flow rate of makeup through the airbrush can be controlled by the user. The makeup is supplied to the airbrush from one of a plurality of makeup collars that are affixed to the main body of the airbrush. In order to enable the user to accurately apply the makeup, a mirror and a standoff marker are affixed to a forward end of the airbrush.Type: GrantFiled: March 16, 2005Date of Patent: June 24, 2008Inventor: George Robert Lampman
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Publication number: 20080041973Abstract: The present invention provides film forming method and a droplet discharge method for removing bubbles in a pressurizing chamber to prevent defective discharge without disposing a large amount of materials in a droplet discharging device. Before a material is discharged in the droplet discharging device, a step is provided in which reduced pressure is kept in a pressurizing chamber and a material supply portion, which are connected, to remove bubbles that exist in the pressurizing chamber. A flow path connected to the outside such as an opening of a nozzle surface of the pressurizing chamber or a material supply port of the material supply portion is sealed, and pressure in the pressurizing chamber and the material supply portion is reduced from an inlet and outlet connected to the material supply portion with the use of a reduced pressure means such as a pump.Type: ApplicationFiled: August 15, 2007Publication date: February 21, 2008Inventor: Gen Fujii
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Patent number: 7328859Abstract: The present invention is a dispenser adapted to be coupled to a fluid container. The dispenser comprises a dispensing head, an energy source, and a fluid pathway. The dispensing head includes a fluid pump, a motor adapted to power the pump, a trigger adapted to control the motor, and a nozzle orifice in fluid communication with a discharge end of the pump. The fluid pathway has one portion in fluid communication with an intake end of the pump and another portion inside the container.Type: GrantFiled: June 8, 2004Date of Patent: February 12, 2008Assignee: Cepia, LLCInventors: James Russell Hornsby, Marcellus Rambo Benson, James Augustus Keefe, III, Joseph Lee McGowan
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Patent number: 7255293Abstract: A sprayer assembly for connection to a container of liquid chemical to be sprayed has a manually operable rotary valve mounted within the housing of the assembly and has a carrier liquid duct and a product duct opening into the liquid duct, the valve being selectively rotatable to an ON position in which the carrier liquid inlet passage is connected with the liquid product inlet opening, and the valve being selectively rotatable to an OFF position in which the carrier liquid passage is not connected with the liquid product inlet opening, the housing have a vent port, and an external vent control member mounted on the housing for movement by the valve to close the vent port in the OFF position and to open the vent port in the ON position.Type: GrantFiled: February 13, 2004Date of Patent: August 14, 2007Assignee: MeadWestvaco CorporationInventor: Joseph K. Dodd
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Patent number: 7237728Abstract: A hand-held dispenser for precisely controlling the flow rate of water therethrough and for precisely controlling the metering of a liquid chemical into the water passing through the apparatus.Type: GrantFiled: May 19, 2005Date of Patent: July 3, 2007Inventor: Rodney Laible
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Patent number: 7188786Abstract: A hose-end sprayer assembly connectable to at least one container of product to be dispensed has an elongated housing for a venturi tube assembly rotatable about its central axis and devised to selectively open and close a product inlet opening as well as its associated vent valve, an independently controllable liquid carrier valve being provided for opening and closing the carrier liquid flow through the venturi tube duct in the venturi tube assembly can be devised for opening and closing inlet product inlet openings of separately stored chemical products sequentially or simultaneously.Type: GrantFiled: October 28, 2004Date of Patent: March 13, 2007Assignee: MeadWestvaco CorporationInventor: Joseph K. Dodd
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Patent number: 7134617Abstract: The invention intends to prevent the occurrence of a phenomenon that air is sucked through an ejection port formed at a nozzle end when a plunger rod is retracted to move away from a valve seat. In a method or apparatus for ejecting liquid droplets in which a liquid under regulated pressure, the liquid being stored in a container as required, is ejected while it is caused to fly in the form of liquid droplets from a valve ejection port, bubbles are prevented from being mixed into the liquid through the ejection port by controlling a supply amount of the liquid in a manner being able to follow a pressure difference between the ejection port and a flow passage in a valve body. The liquid is continuously ejected at a high-speed tact. The ejection port is opened with a plunger rod retracted by air pressure, and the liquid droplet is ejected through the ejection port with the plunger rod advanced by a resilient force of a spring.Type: GrantFiled: March 25, 2002Date of Patent: November 14, 2006Assignee: Musashi Engineering, Inc.Inventor: Kazumasa Ikushima
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Patent number: 7118049Abstract: A hose-end sprayer has a selectively rotatable rotary valve received within the transverse bore of a housing which includes a carrier liquid inlet passage, a chemical liquid inlet passage and a discharge passage. The valve has a carrier liquid duct and a chemical liquid duct opening into the carrier duct for interconnecting the inlet passage in a first rotative position of the valve, and the valve is capable of closing the inlet passages in a second rotative position of the valve. The rotary valve is selectively rotatable in a third position for interconnecting the liquid passage only with the discharge passage in a rinse position of the valve. Container venting is isolated from a valve chamber in which the rotary valve operates to avoid entry of carrier liquid into the container through the open vent in the ON position of the valve upon its selective rotation.Type: GrantFiled: August 13, 2004Date of Patent: October 10, 2006Assignee: MeadWestvaco CorporationInventor: Joseph K. Dodd
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Patent number: 7097119Abstract: The present invention is a dispenser adapted to couple to a fluid container having an opening surrounded by a neck. The dispenser comprises a cap, a dispensing head, an energy source, and a conduit. The cap is adapted to seal the opening fluid tight when the dispenser is coupled to the container. The dispensing head is pivotably secured to the cap and includes a fluid pump, a motor adapted to power the pump, a trigger adapted to actuate the motor, and a nozzle orifice in fluid communication with a discharge end of the pump. The energy source is electrically connected to the motor and extends inside the container. The conduit has a first end in fluid communication with an intake end of the pump and a second end inside the container.Type: GrantFiled: April 27, 2004Date of Patent: August 29, 2006Assignee: Cepia, LLCInventors: James Russell Hornsby, Marcellus Rambo Benson, James Augustus Keefe, III, Joseph Lee McGowan
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Patent number: 7032841Abstract: A hand-held battery power sprayer is formed of a body having a spray nozzle, a trigger, and an internally threaded attachment collar having a passageway therethrough. The attachment collar removably receives a container. As battery powered pump is positioned within the body, the pump having an inlet and an outlet, the outlet being connected by a discharge tube to the spray nozzle and the inlet connected by a suction tube extending through the inlet collar passageway into the interior of a liquid-holding container when the container affixed to the attachment collar. A battery is contained within the body. A switch within the body is actuated by this trigger. Circuitry connects the battery, switch, and pump in series. A passive check valve member normally closes the passageway preventing fluid flow from the container into the body and is displaceable to permit air flow into the container.Type: GrantFiled: April 27, 2004Date of Patent: April 25, 2006Inventor: Steven L. Swisher
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Patent number: 6663017Abstract: A device for generating a pressurized stream of treating media including a vessel (4) containing the treating media (6), a pressurized fluid delivery assembly (16) for delivering a pressurized fluid to the vessel (4) and a conduit (14) for transporting the treating media (6) out of the vessel (4) which has been pressurized through the pressurized fluid.Type: GrantFiled: July 24, 2002Date of Patent: December 16, 2003Assignee: Safety-Kleen Systems, Inc.Inventors: Michael Endres, Rudy Publ
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Patent number: 6446878Abstract: An apparatus and method for the production of small, uniform sized droplets. The apparatus is a droplet generator including a housing defining a chamber for holding a material to be ejected therefrom, an inlet and a droplet outlet communicating with the chamber. The housing is coupled to a pressurizing system connected to the inlet for applying pressure pulses to the chamber. The housing includes a vent in communication with the chamber for relieving pressure in the chamber. The vent has an effective size so that during application of the pressure pulse the chamber is pressurized to a pressure effective to eject a droplet of the material therefrom and thereafter the chamber is vented through the vent at a rate sufficient to prevent further discharge of droplets. The droplet generator produces molten metal or alloy droplets and is particularly suitable for generating single droplets on demand in manufacturing techniques using droplet deposition.Type: GrantFiled: March 1, 2000Date of Patent: September 10, 2002Inventors: Sanjeev Chandra, Rahim Jivraj
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Patent number: 6435426Abstract: A pressure proof gasket plate for use with a cup and special or modified lid assembly for a spray gun, consisting of a cup with a first end configured with fittings suitable for attachment to the feed port of the spray gun and a second end with a large opening for access and filling, and a domed lid, with an external mechanism for providing a compressive attachment of the lid to the cup with the gasket plate in between. The floating gasket plate has a compressible gasket configured on its inside surface so as to form a seal when it contacts the edge of the cup as the lid is applied to the cup. The floating gasket plate is sealed to the cup by pressure on its periphery as applied by the domed lid. The floating gasket plate is made of such material and thickness as to resist deflection and deformation under normal working pressure of the spray gun.Type: GrantFiled: May 11, 2000Date of Patent: August 20, 2002Inventor: William H. Copp, Jr.
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Patent number: 6036114Abstract: A pressure controlling device of a paint container for use in conjunction with a paint spray gun is composed of a pressure stabilizing plug capable of regulating the air discharge in accordance with the magnitude of the air pressure that is admitted to the paint container. The device is further composed of an air valve piece capable of displacing to control the entry of an appropriate amount of air into the paint container so as to keep the air pressure of the paint container constant. The device is provided with an adjustment nut for adjusting the elastic force of the pressure stabilizing plug in accordance with the desired thickness of a coating.Type: GrantFiled: January 11, 1999Date of Patent: March 14, 2000Assignee: Ding Rong Enterprise Co., Ltd.Inventor: Hsien Chun Shih
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Patent number: 5964420Abstract: A new particulate applicator attachment for a leaf blower for applying particulates such as powdered pesticides to a lawn or garden. The inventive device includes an elongate main tube having opposite intake and discharge ends. Each of the ends of the main tube has an opening into the lumen of the main tube. The intake end of the main tube is adapted for attachment to a blower tube of a leaf blower such that the lumen of the main tube is in fluid communication with the blower tube. A container for holding particulates is coupled to the main tube. Provided in the lumen of the main tube are intake and outlet conduits. One end of each of the conduits is connected to the container such that the lumen of the main tube is in fluid communication with the interior of the container through the conduits.Type: GrantFiled: April 30, 1998Date of Patent: October 12, 1999Inventor: Tracy E. Hampton
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Patent number: 5687911Abstract: A method and system for dispensing a nonaqueous foam under pressure from a container wherein the valve of the container is pointed above the horizontal plane.Type: GrantFiled: February 18, 1995Date of Patent: November 18, 1997Assignee: Clayton CorporationInventors: Michael Boakye-Danquah, John F. Pysz, Floyd R. French, Joseph C. Lott
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Patent number: 5217557Abstract: A levee gate and the process for the production thereof. The levee gate of the invention includes a rectangular sheet of thermoplastic material with a rectangular sleeve located on one edge of the thermoplastic material, the rectangular sleeve being a portion of the rectangular sheet fused to the rectangular sheet. The process for the production of the levee gate includes extruding a cylindrical tube of thermoplastic material, inflating the cylindrical tube as it is extruded to provide an inflated length of tube, flattening the inflated length of tube without fusing the opposed walls of the tube to each other, and continuously fusing a portion of the opposed walls together to form a seam.Type: GrantFiled: March 9, 1992Date of Patent: June 8, 1993Inventor: John F. Hogan
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Patent number: 4948054Abstract: A low cost, hand-held sprayer that is pneumatically powered so that a wall or ceiling may be textured. The sprayer includes a hollow J-shaped body that is filled with a liquid texture material. An air passage communicates with an air supply and extends through the sprayer body to deliver respective streams of air to an exit orifice at the bottom of the body and to an air chamber at the top of the body. An air escape hole is formed through the sprayer body to communicate with the air chamber at a location above the material supply. By manually closing the air escape opening, a positive air pressure is created within the air chamber to force the entire column of material towards the exit orifice at the bottom of the sprayer body. Accordingly, air from the air passage is mixed with material and injected through the exit orifice to thereby discharge and atomize the material.Type: GrantFiled: March 7, 1989Date of Patent: August 14, 1990Assignee: Behr Process CorporationInventor: Gregory B. Mills
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Patent number: 4940185Abstract: A safety exhaust valve equipped spray gun including a safety exhaust valve provided on the bottle cover above the bottle connecting portion for maintaining air pressure transmitted into the bottle body through an air induction hole within a limited range, by providing a steel ball which is removed from an air exhaust when the pressure exceeds the limited range so that excessive air pressure is exhausted through an exhausted hole and the inner pressure is constantly kept within the limited range. A pressure stabilizing bolt is provided on the air induction hole of the nozzle so that spraying is effectively achieved by providing a fine spraying effect. By means of this arrangement, the spray gun of the present invention insures against explosion and provides a maximum security effect and is practical for both high pressure and low pressure application.Type: GrantFiled: December 9, 1988Date of Patent: July 10, 1990Inventor: Hsueh-Chin Fu
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Patent number: 4909409Abstract: A lid for a paint can is disclosed which has a wiper for removing paint from a paint tube and a vent assembly to allow air to enter the can and resists the escape of paint. The wiper removes the excess paint from the paint tube and allows the paint gun and tube to be readily removed from the can and prevents loss of paint through the vent opening.Type: GrantFiled: February 6, 1989Date of Patent: March 20, 1990Inventor: Donald R. Shreve
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Patent number: 4474327Abstract: A fertilizer spreader includes an attachment assembly for use with a portable hand-held air blower for entraining granular fertilizer or the like into the discharge air stream of the blower, whereby the fertilizer is broadcast by the air stream over a lawn or garden area. The attachment assembly comprises an adapter nozzle connected in-line with the discharge air stream of the blower and including a pressure port through which a portion of the discharge air stream is directed for passage through a pressure tube to a diffuser mounted within a portable vented fertilizer-receiving container near the bottom thereof. The diffuser turns the air stream upwardly within the container and divides the stream into a plurality of turbulent air flows for agitating and suspending particles in a localized region above the diffuser, with a substantial portion of the air stream escaping from the container through a vent at a position remote from the localized region.Type: GrantFiled: January 28, 1983Date of Patent: October 2, 1984Assignee: Allegretti & CompanyInventors: Charles A. Mattson, James Michel, Anthony Domagalski
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Patent number: 4174070Abstract: An improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.Type: GrantFiled: April 10, 1978Date of Patent: November 13, 1979Assignee: Binks Manufacturing CompanyInventors: George W. Lau, Edward J. Bujnowski
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Patent number: 3940063Abstract: Apparatus for coating steel mill molds and stools including a sample bomb or container and means for filling the bomb with a precise amount of product to thereafter be discharged through a spray nozzle. The apparatus further includes means for automatically rinsing same after each application.Type: GrantFiled: May 30, 1975Date of Patent: February 24, 1976Assignee: Nalco Chemical CompanyInventors: Jon B. Baumgartner, James J. Moran