Air Blast Patents (Class 239/DIG21)
  • Patent number: 6142387
    Abstract: The present invention relates to a multipurpose air fountain, and more particularly to an air fountain which can join with various blowpipes and accessory components to assemble an especial air tool for meeting different purposes--like a cleaning air gun, an inflating gun, a blasting dust gun and a painting spray gun. The present invention provides an air fountain that can connect with different length blowpipes, which can swivel to any orientation to improve the flexibility of the operation and to meet the necessaries of variety working places. The blowpipe can be replaced with an inflating adapter so that the air fountain works as an inflating gun for the tire. As attaching a spraying adapter, by a manifold with an extending hose, the air fountain can be refitted into a cleaning gun with a good absorbing effect. By means of the various attachments, the air fountain provided by the present invention can be refitted into a blast gun, an inflating gun, a cleaning gun or a painting gun.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: November 7, 2000
    Inventor: Wuu-Cheau Jou
  • Patent number: 6098904
    Abstract: Blow-off nozzles are used for creating a high-energy air blast, for drying metal panels prior to painting. Depth or reach of penetration (in the atmosphere) is important. A bullet is provided in the center of the nozzle. The bullet is aerodynamically faired, for minimum drag. The effect of the bullet is to create a low pressure area in the jet downstream of the nozzle. The low pressure area serves to hold the jet together, preventing spreading, to a degree that enables a significant increase in penetration distance. The bullet is mounted on faired arms, which are secured to the walls of the nozzle.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: August 8, 2000
    Assignee: Air Force 1 Blow Off Systems Inc.
    Inventors: Kirk John William Davidson, John Frederick Hayden Davidson
  • Patent number: 5944911
    Abstract: A method and apparatus for sweeping seating areas is provided which enables the operator to stand substantially upright while directing a stream of air substantially horizontally along the floor supporting the seats. The apparatus includes a handle adapted for connection to a source of compressed air, a substantially elongated wand connected to the handle, and a nozzle which directs a stream of air along the floor substantially perpendicular to the wand. The nozzle is configured to intake additional air besides the compressed air supplied through the handle to provide increased air volume at pressures reduced from that supplied by the compressed air source. The method includes positioning the apparatus behind seats, particularly in stair-stepped stadium seating areas to provide a substantially horizontal air flow reaching into corners between the riser wall and landing of the seating area and around the bottoms of the seats.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: August 31, 1999
    Assignee: Winters Company
    Inventors: Robert L. Winters, Thomas P. Wagner
  • Patent number: 5785941
    Abstract: A process for preparing finely divided silica by reaction of gaseous or vaporizable silicon compounds in a mixture with gases forming water on combustion with air or oxygen in a flame includes producing discharges of gas in the combustion chamber by means of at least one gas gun. The apparatus for carrying out this process has applied to the outside of the combustion chamber wall at least one gas gun which produces a discharge of gas via an opening in the combustion chamber wall, preferably in conjunction with a nozzle on the inside of the combustion chamber wall.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 28, 1998
    Inventors: Helmut Maginot, Johann Huber
  • Patent number: 5605556
    Abstract: A method and apparatus for distributing fibrous includes establishing a flow of fibrous material, positioning at least one flow distributor in a position to direct at least one gaseous flow into contact with the flow of fibrous material to distribute the fibrous material, and directing an intermittent flow of gas from the distributor, where the flow of gas increases and decreases linearly during the flow cycles.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: February 25, 1997
    Assignee: Owens-Corning Fiberglas Technology Inc.
    Inventor: David P. Aschenbeck
  • Patent number: 5603743
    Abstract: A method and apparatus for distributing fibrous material includes establishing a flow of fibrous material, positioning at least two flow distributors in a position to direct a gaseous flow into contact with the flow of fibrous material, such as a flow of glass fibers, each flow distributor having an outer surface having one or more openings for the emission of gas, an inner surface having one or more orifices for the emission of gas, and a pressurized source of gas in contact with the inner surface, the inner surface being moveable with respect to the outer surface to intermittently align some of the openings with some of the orifices, thereby enabling gas from the pressurized source of gas to be emitted through the inner and outer surfaces and into contact with the flow of fibrous material to distribute the fibrous material, and moving one of the surfaces relative to the other of the surfaces to control the emission of gas from the flow distributor.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: February 18, 1997
    Assignee: Owens-Corning Fiberglas Technology Inc.
    Inventors: David P. Aschenbeck, William A. Watton, James G. Snyder
  • Patent number: 5556588
    Abstract: Apparatus and methods for automatically spraying a mist of mold release into the space between a tire and a bladder in a tire molding machine so that the mold release covers the outer surface of the bladder or the interior surface of the tire and does not get onto the walls of the mold.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: September 17, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Mike S. Coyne, Stanley A. Crisp, Jim E. Newman
  • Patent number: 5397606
    Abstract: A coating of paint on a panel is dried by directing a narrow jet of air from a supply, preferably from an air mover, held at a predetermined distance from the panel towards one edge region of the panel, the jet being substantially narrower, when it reaches the panel edge region, than the length of the panel edge and the jet being inclined to the plane of the panel such that the air from the jet is entrained by the panel in a spreading laminar flow across the panel surface from that edge region to all the other edges thereof. This induces such laminar flow over substantially the whole surface and replaces vapor-laden air closely adjacent the surface with fresh air to accelerate drying. In a painting booth for cars several such air movers use part of the bulk air flow in the booth.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: March 14, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventor: Christopher S. Jeffs
  • Patent number: 5350118
    Abstract: A glass cullet separator utilizes a multi-element optical sensor to detect when an opaque particle in a group primarily composed of transparent particles moving along a plane passes a first line lying in that plane, and the particular location of the particle along the first line. A signal from the optical sensor is fed to a microprocessor. After a delay equal to the time it takes for a particle to pass between the first line and a second line, which is parallel to and separated from the first line, the microprocessor causes a valve to open and emit a jet of high velocity air from a nozzle aimed toward the plane along the second line. The jet of air blows the opaque particle out of the plane where it is captured and separated from the remainder of the particles. A plurality of nozzles are located in a manifold which extends across the extent of the second line. The manifold also supports the valves and fluid conduits that interconnect the valves and the nozzles.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: September 27, 1994
    Assignee: Alpine Technology, Inc.
    Inventors: James T. Mitchell, James L. Mitchell, Mark A. Woods
  • Patent number: 5280856
    Abstract: An arcuate shield having a concave interior surface is formed as a semi-conical configuration having first and second side edges converging towards a forward edge. The shield structure is arranged to mount a pneumatic hose medially and in contiguous communication with an inner concave surface of the shield. A modification of the invention further includes fan blades arranged for mounting adjacent a rear edge of the shield structure to enhance coverage of the shield, as well as providing for adjustment to modify the arcuate configuration of the shield structure to afford adjustment of the confronting surface of the shield structure.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: January 25, 1994
    Inventor: John W. Haggerty
  • Patent number: 5248097
    Abstract: In-line adjustable air flow gun is to be permanently installed in the air line, and used with other pneumatic air tools, such as sanders, die grinders, drills, impact wrenches, duel action sanders and spray guns. It's primary function is to blow away debris, by providing an adjustable air flow as is necessary to accomplish a large variety of different situations.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: September 28, 1993
    Inventor: Michael R. Kardell
  • Patent number: 5233940
    Abstract: In a pre-weaned piglet protector, sharp bursts of compressed air from dome shaped nylon air nozzles located one foot away from each other longitudinally in a farrowing area are used to irritate baby piglets. The farrowing area has a safety zone where the sow cannot sit. The area beneath the sow is covered by these sharp bursts of air. The nozzles keep bursts of air away from the baby pigs in the safety zone so they have a tendency to move to the safety zone to avoid the irritation of the air bursts. The air bursts are of a pressure and duration which is uncomfortable for the baby piglets but not sharp enough to cause any harm. The bursts of air are under the control of a controller which opens and closes the air solenoid with precisely metered intervals. The controller is activated by a diffuse reflection photoelectric sensor switch that hangs directly above the sow and detects her inclinations.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: August 10, 1993
    Assignee: Zonco, Inc.
    Inventor: Andrew L. Berglund
  • Patent number: 5173988
    Abstract: An air knife assembly is disclosed for removing water and soapy lubricants from an area of a bottle or can which is to be labeled or coded using drop marking equipment. The air knife is positioned at the correct pitch, roll and yaw angles to remove water from a desired area only, avoiding damage to labels which have been applied but not yet bonded to the bottle or can. The dewatering ensures accurate marking of the product.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: December 29, 1992
    Assignee: Videojet Systems International, Inc.
    Inventors: Chandrakant R. Bhatia, Robert E. Petterec
  • Patent number: 5170943
    Abstract: A high velocity pneumatic device having particular use for excavating or dislodging soil. The device includes a body or housing having a passage that connects a source of air under pressure, such as a compressor, to an elongated discharge tube. A valve mechanism is disposed in the passage and controls the flow of air through the tube. Mounted in the distal end of the tube is a nozzle having an inwardly converging upstream and an outwardly diverging downstream end which increases the velocity of the air being discharged through the tube. A manually operable trigger is directly connected to the valve mechanism and actuates the valve to discharge air through the tube. The nozzle is formed of a non-sparking metal, such as brass, while the tube is composed of an electrically nonconductive material, such as glass reinforced resin.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: December 15, 1992
    Assignee: M-B-W Inc.
    Inventor: Thomas G. Artzberger
  • Patent number: 5074056
    Abstract: A device is provided for removing moisture and small particles of debris from windshield breaks and the like. The device includes a nozzle for discharging air. The nozzle has a shirt portion with a planar edge. A compressed air supply is discharged through the nozzle. A method also is provided for removing moisture and small particles of debris from windshield breaks and the like. The method includes positioning the nozzle having a skirt with a planar edge over the windshield break. Then, compressed air is discharged through the nozzle mechanism. The compressed air has an initial pressure and a central core area. The central core area has a pressure substantially equal to the initial pressure of the compressed air. The nozzle mechanism is positioned such that the central core is directed at only a portion of the windshield break.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: December 24, 1991
    Inventor: Frank D. Werner
  • Patent number: 5050805
    Abstract: A sound attenuating supersonic nozzle has an exit to throat ratio in the range of 2.5 to 6.0, with longitudinal grooves formed in the interior wall of the supersonic passageway of the nozzle body. A shield is disposed about the exterior surface of the nozzle body, forming an exit cavity and an exit opening, and has a gill cavity through which auxiliary air flows into the exit cavity and mixes with the supersonic flow.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: September 24, 1991
    Assignee: Cold Jet, Inc.
    Inventors: Daniel L. Lloyd, Richard J. Madlener
  • Patent number: 5020726
    Abstract: A manually operable two stage valve assembly, in fluid communication with a source of fluid under pressure, regulates the discharge of a fluid through a nozzle to one of two predetermined flow rates. Upon independent actuation, the first stage permits a high flow rate and the second stage permits a low flow rate.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: June 4, 1991
    Inventor: Michael J. Myres
  • Patent number: 4967060
    Abstract: A drying device includes an adapter portion for fitting over the nozzle of a variety of common hand-held blow dryers and flexible hoses, coupled to the adapter portion and having a plurality of holes, for insertion into footwear, gloves, hats, etc. In one embodiment, the flexible hoses are bent in a U-shape.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: October 30, 1990
    Inventor: Richard Lomeli
  • Patent number: 4954059
    Abstract: An arrangement for improved dispensed material bead profile control, in which a viscous material is dispensed in a stream upon a surface. The stream is transported along that surface and forms a bead of the viscous material. The bead is then confined with air streams which also reshape the profile of the bead. The material is dispensed by a nozzle which has at least two orifices in its proximity. One orifice is located at a distance from the nozzle which is greater than for the other orifice. The orifices form air streams under pressure and direct the air streams toward the material stream, as well as toward the bead formed on the surface when the material stream is transported along that surface.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: September 4, 1990
    Assignee: Robotic Vision Systems, Inc.
    Inventors: Jay Lee, Alex Mauro
  • Patent number: 4867380
    Abstract: The invention relates to a pistol grip type compressed air blower having a andle (2) with a compressed air connection element and an air valve, on which a support body is placed with a turbulence tube (15). On one end section, the support body (26) is formed with a cold air nozzle (18) that has a passage (63) that is coaxial with the center axis of turbulence tube (15) and on an opposite end section, the support body is formed with a warm air nozzle with a hole that is coaxial to the center axis of turbulence tube (15). In some embodiments, the warm air nozzle is adjustable. A turbulence chamber with at least one hole directed tangentially into the interior space of the turbulence chamber is connected between the cold air nozzle (18) and the turbulence tube (15), and receives compressed air via a duct (14) of the handle that is connected to the compressed air connection element via the air valve. Turbulence chamber (40) is formed by a flanged disk that rests on the cold air nozzle (18).
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: September 19, 1989
    Assignee: Mar-Research Gesellschaft fuer Forschung und Entwicklung mbH
    Inventor: Walter Sibbertsen
  • Patent number: 4535936
    Abstract: A blast nozzle for blowing-off liquids from surfaces, for example from sheet surfaces, has a tubular body, on the outer surface of which converging plate-like lips are provided which extend generally tangentially to form a blow-off slit which runs in an axially-parallel manner to the body. A plate-form cleaning element which may be moved relative to the blow-off slit is located in the body. The cleaning element is attached to a transmission which is adjusted by a drive provided outside the body. According to one embodiment, the cleaning element is a sheet which extends over practically the entire length of the blow-off slit and which may be selectively pushed into, and through, the blow-off slit, whereas according to another embodiment, it is a tongue which lies in the blow-off slit and which may be moved along that slit.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: August 20, 1985
    Inventor: Paul Fontaine
  • Patent number: 4431135
    Abstract: Efficient and silent air nozzle assembly for discharging a small amount of compressed gas, such as air, to entrain a larger amount of secondary air and direct or focus the composite air mixture against a work station, such as for cleaning or ejection purposes. The air nozzle comprises a conduit having an exit orifice into which is pressed a solid nozzle plug having a multiplicity of peripheral longitudinal surface recesses which provide a multiplicity of small gas passages between the plug and the inner surface of the conduit. The plug has an inwardly tapered tip which extends out of the exit orifice of the conduit to cause the exiting gas to entrain surrounding or secondary air and direct the gas-air mixture along the tapered surface thereof where it converges as a concentrated air flow.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: February 14, 1984
    Inventor: Richard G. Kaye
  • Patent number: 4385728
    Abstract: A flow-amplifying nozzle having a construction which facilitates production, reduces costs, and enhances the safety of such a nozzle in operation. Such construction is particularly suitable for relatively small-size nozzles designed to direct and amplify the flow of compressed air or other pressurized fluid. The nozzle is composed of two pieces, one being a rigid tube having a closed, tapered nose portion and a plurality of radial openings in the cylindrical portion immediately adjacent the nose, and the other being a collar extending about and secured to the tube's cylindrical portion. The collar redirects the flow of fluid discharged through the radial openings, causing it to be expelled forwardly over the tapered nose of the nozzle. Secondary air is entrained by the rapid flow of primary air and thereby amplifies the total flow of air directed by the nozzle.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: May 31, 1983
    Assignee: Vortec Corporation
    Inventors: Leslie R. Inglis, Joseph E. Peter
  • Patent number: 4358334
    Abstract: An improved high speed cast process for fusing fasteners, with strips of film at their base, to separately extruded film or sheet stock for making containers with integral closure means. The process makes available multiple sets of male and female fastener elements, with variable spacing, in a single extrusion operation. The apparatus is configured so that adhesion between the fastener elements and the film or sheet occurs very closely to the die lips before significant cooling of the extrudate occurs. Containers with improved profiles are obtained because the base permits the profiles to remain relatively rigid during closing and opening.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: November 9, 1982
    Assignee: The Dow Chemical Co.
    Inventors: Thomas A. Sutrina, R. Douglas Behr
  • Patent number: 4070279
    Abstract: An apparatus for dissolving at least one gas in a liquid comprises an eductor submerged in a liquid, desirably in combination with a high turbulence mixing device, so that synergistic results are obtained. The inlet portion of the eductor generally has an inward convergence towards a throat. The outlet portion of the eductor has an outward divergence. A diffuser which generally carries the gas mixed with a liquid extends through the eductor inlet portion and through the throat portion into the outlet portion. In a desired embodiment, the diffuser is connected or attached to a high turbulence mixing device such as desirably, a flat plate orifice in a conduit. An injection tube extends through the flat plate orifice downstream into the conduit pipe and injects a gas into the liquid to produce a gas-liquid mixture.The apparatus dissolves an exceedingly high amount of gas into a liquid and requires very low amounts of energy.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: January 24, 1978
    Inventor: Edward T. Armstrong
  • Patent number: 3985302
    Abstract: An improved air nozzle is provided which produces high thrust amplification over a relatively wide range of input flow rates while maintaining relatively low noise levels. The nozzle is adapted to provide flow amplification by inducing flow of ambient air with high pressure air.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: October 12, 1976
    Assignee: Barry Wright Corporation
    Inventor: Alain Frochaux
  • Patent number: 3984054
    Abstract: An air nozzle is provided which produces high thrust with low noise. The nozzle is adapted to provide flow amplification by inducing flow of ambient air with high pressure air.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: October 5, 1976
    Assignee: Barry Wright Corporation
    Inventor: Alain Frochaux
  • Patent number: 3982605
    Abstract: A silencer device for attachment to a nozzle, or a combined nozzle and silencer, are provided for reducing the noise generated by compressed air or a compressed air-particulate mixture exiting from conventional nozzles of the type used for air blasting, sandblasting, or peening operations. The silencer has a bore of substantially constant diameter which is, within limits, larger than the nozzle bore for which the silencer is designed.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: September 28, 1976
    Assignee: The Carborundum Company
    Inventor: John E. Sneckenberger
  • Patent number: 3980232
    Abstract: For spraying orchards or other agricultural products, apparatus is made up of modular components including a discharge head unit, a tank unit and a draw bar unit. In one mode of use, the discharge head unit is supported by the three-point-hitch of a tractor, and the draw bar unit is mounted on the tank unit for coupling the tank unit to a hitch mounted on the head unit. In another mode, the tank unit, discharge head unit and draw bar unit are assembled in a unitary trailer assembly to be towed by a towing tractor. In each case power is supplied by the tractor power takeoff. The discharge head unit includes a centrifugal blower including a generally cylindrical housing and a generally concentric blower rotor, with high velocity discharge nozzles projecting generally radially from a generally cylindrical housing wall portion. The housing is constructed so that the nozzle wall portion is readily removable and replaced with a substitute nozzle wall portion containing a different nozzle arrangement.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: September 14, 1976
    Inventor: Welker W. Funk
  • Patent number: 3973642
    Abstract: A jet nozzle is described in which the noise is greatly reduced. It comprises a tapering thick-walled tube of rubber or plastic, to the wider end of which a pressurized fluid is supplied through a porous filter body retained by a cup-shaped bowl having a perforated bottom.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: August 10, 1976
    Assignee: Sunne Gummifabrik AB
    Inventor: Lars Christer Dahlquist