Slit Or Slot-like Apertures Patents (Class 239/568)
  • Patent number: 6010078
    Abstract: In a distributing apparatus including a tubular manifold, for an applicator for direct or indirect application of a liquid or pasty application medium onto a traveling material web, notably a paper web or cardboard web, the cross section of the tubular manifold is variable. The adjustment of the manifold permits verying the rate of application of liquid or pastry medium across the distributors width.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: January 4, 2000
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Bernd Eberhardt, Martin Seliger
  • Patent number: 6000630
    Abstract: A vehicle-mounted emulsion dispersing device including a dispersing nozzle that is opened and closed by an opening/closing device, an emulsion tank that stores emulsion, and an emulsion pump for pumping emulsion from the tank to the nozzle and spraying the emulsion from the nozzle. A control device controls the emulsion pump and the dispersing nozzle so that the rate of emulsion dispersion coincides with a set value. A method of dispersing emulsion using the emulsion dispersing device wherein the control device intermittently disperses the emulsion by intermittently opening and closing the opening/closing device so that the area of dispersed emulsion is continuous from front to back.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 14, 1999
    Assignee: Niigata Engineering Co., Ltd.
    Inventor: Toru Takenawa
  • Patent number: 5996904
    Abstract: A diffuser (D) for atomizers or mist blowers of treatment liquids in agriculture, includes a large tube (1) fed with air under pressure, ending into a narrow fan-shaped opening (2), and elements to cause the treatment liquid to flow into the fan-shaped opening (2) at a very low pressure. The elements include a plurality of sectors (3) for liquid distribution, each of them consisting of two straight tube lengths (4) of synthetic plastic material, provided with gauged holes (5) and mutually connected so as to form a very wide angle between them, and substantially at 90.degree. with a feeding duct (6). The sectors (3) are positioned in succession, in one or more side-by-side rows, along the narrow fan-shaped opening (2), substantially at its center.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: December 7, 1999
    Assignee: CIMA S.p.A.
    Inventor: Paolo Smeraldi
  • Patent number: 5913635
    Abstract: An emitter pipe and coupling for use in an irrigation system wherein the emitter pipe includes inner and outer flexible plastic pipe with a pair of longitudinally extending spacers therebetween, the inner pipe having a plurality of longitudinally spaced openings therein confluent with a plurality of longitudinally spaced slots in the outer pipe. The end of the emitter pipe is received in a slot in the end of a rigid coupling with the inner wall of the slot having a plurality of barbs thereon engaging the interior of the pipe and the outer wall of the slot has a pressing element thereon for compressing the emitter pipe into a sealed and secure relationship with the coupling. The end of the inner wall of the coupling slot has several land areas of decreasing diameter so that by cutting off the desired land area, the volume of fluid passing through the coupling can be controlled.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: June 22, 1999
    Inventor: Philip H. Graham
  • Patent number: 5884844
    Abstract: A spray apparatus has first and second elongate ducts. The material to be sprayed, which may be solid or liquid, is delivered through the first elongate duct to an elongate slot-shaped nozzle or other means for distributing it. To reduce disturbance by de-energizing ambient air currents, the second elongate duct supplies air to first and second air distribution outlets, each of which defines an elongate slot-shaped nozzle. The nozzle is directed outwardly, away from the air distribution mechanism and towards the surface on which the material is to be distributed, so as to form air curtains on either side of the elongate ducts. The elongate air distribution outlet can form an elongate slot-shaped nozzle having a convergent inlet section, a throat section and a diffuser section extending to an outlet port. It can also include fins extending into the air duct, to deflect air from the air duct through the slot-shape nozzle.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: March 23, 1999
    Inventor: Archie Arthur Truitt
  • Patent number: 5862744
    Abstract: An apparatus applies a strip or stream of fluid to a moving dough sheet. The apparatus has a fluid flow regulator coupled to a fluid source providing positive pressure, and a nozzle coupled to the fluid flow regulator and disposed proximate the dough sheet such that drops of fluid emerging from the nozzle contact the dough sheet before falling from the nozzle.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: January 26, 1999
    Assignee: The Pillsbury Company
    Inventors: Susan M. Hayes-Jacobson, James P. Michaels
  • Patent number: 5853482
    Abstract: Apparatus and method for applying a coating solution to a running substrate using a slot die having two die lips forming a gap therebetween. The gap also defines an outlet for releasing the coating solution to the substrate. The lips have plurality of manifold chambers communicating with gas feeder and coating solution feeder provided in the die lips. The manifold chambers communicate with the outlet. The width of the coating solution is adjustable with the gas pressure applied to the gas feeder.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: December 29, 1998
    Assignee: AGFA-Gervaert AG
    Inventors: Uwe Gartmann, Hermann Idstein, Guenter Hultzsch
  • Patent number: 5816506
    Abstract: A nozzle and processing method thereof which provides suppression of vertical stripes due to foreign matter or aggregates in the paint or dust deposits on the base material. In one embodiment of the present invention the nozzle includes an upstream lip, a downstream lip in a curvature shape projecting to the base material side, and a slit formed by the upstream lip and downstream lip. A side edge of the downstream lip is formed in a curvature shape having a radius of a curvature in a range of 4 to 45 .mu.m, and by this edge, even a paint of high viscosity which hardly flows can smoothly flow into the gap between the downstream lip and base material. Aggregates in the paint or dust deposits on the base material therefore are not caught in the edge.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 6, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaru Watanabe, Hiroshi Maruyama, Kimihiro Nakano
  • Patent number: 5803371
    Abstract: An injection nozzle for blowing air or injecting solvents reduces noise level and facilitates cleaning of injection passages. The injection nozzle includes a nozzle body provided with an opening and an inlet passage communicating with the opening. A plurality of grooves are provided on top and bottom sides of the nozzle body respectively. The nozzle body is also provided with upper and lower cover members, which can be selectively opened or closed. When the cover members are closed, an expansion chamber is defined by the opening and injection passages are defined by the grooves. The fluid to be injected from the inlet passage is expanded once in the expansion chamber and is then distributed through the injection passages for injection. Such expansion and contraction produces an effect of reducing noise level at the time of injection. Furthermore, the insides of the expansion chamber and the injection passages can be cleaned with ease by opening the cover members.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: September 8, 1998
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Motor Hokkaido Inc., Spraying Systems Japan Co.
    Inventors: Tamotsu Sugiyama, Haruhide Tanaka, Kenichi Okabe, Takayuki Ishihara, Yasuhiro Kishi, Toyofumi Kanamaru
  • Patent number: 5769947
    Abstract: Apparatus is provided for applying glue or a similar adhesive onto a substrate such as a paper web. It comprises a nozzle plate (20) with exit openings (29) with a small diameter, which are arranged in at least two rows (32,33), staggered closely behind one another in the transport direction (4). The rows are also transversely offset with respect to each other such that the outlet openings of one row (33) are aligned with the spaces (37) defined between the outlet openings of another row (32). In this manner, side edge portions (47) of the adhesive issued from the outlet openings of the one row (33) contact and merge with the side edge portions (47) of the adhesive issued from the outlet openings of the other row (32) whereby a continuum of adhesive is produced.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: June 23, 1998
    Assignee: ITW Dynatech GmbH Klebetechnik
    Inventor: Andreas Krappweis
  • Patent number: 5735465
    Abstract: A dispenser includes a valve for dispensing a liquid product to be dispensed in the form of an aerosol with the aid of a propellent gas. The valve is mounted on a container which contains the liquid and is equipped with a hollow operating stem including a product inlet and a product outlet, a push-button for actuating the valve via the stem, first and second nozzles provided in the push-button, and first and second ducts, respectively linking the first and second nozzles to the outlet of the stem. The first nozzle is a nozzle which is capable of delivering a spray having a mechanical effect and the second nozzle is a nozzle which is capable of delivering a spray of product. The dispenser is used especially for spraying hair lacquer.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: April 7, 1998
    Assignee: L 'Oreal
    Inventor: Vincent De Laforcade
  • Patent number: 5711662
    Abstract: A gas lighter capable of producing a flat flame so that the upper surface of the lighter body is not heated. A burner head 1 is projected columnarly from a lighter body 2. Two gas nozzles 4 open toward symmetric positions on the upper surface of the burner head 1, the upper surface being spaced from the lighter body 2. The nozzles are branched right and left at the same angle with respect to the axis of the burner head 1. A large and flat flame 5 is thus formed large and flat on the burner spaced from the lighter body 2.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: January 27, 1998
    Assignee: Ishimitsu Kinzoku Kogyo Co., Ltd.
    Inventor: Kunio Ishiguro
  • Patent number: 5680991
    Abstract: A spray apparatus has first and second elongate ducts. The material to be sprayed, which may be solid or liquid, is delivered through the first elongate duct to an elongate slot-shaped nozzle or other means for distributing it. To reduce disturbance by de-energizing ambient air currents, the second elongate duct supplies air to first and second air distribution outlets, each of which defines an elongate slot-shaped nozzle. The nozzle is directed outwardly, away from the air distribution mechanism and towards the surface on which the material is to be distributed, so as to form air curtains on either side of the elongate ducts. The elongate air distribution outlet can form an elongate slot-shaped nozzle having a convergent inlet section, a throat section and a diffuser section extending to an outlet port. It can also include fins extending into the air duct, to deflect air from the air duct through the slot-shape nozzle.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: October 28, 1997
    Inventor: Archie Arthur Truitt
  • Patent number: 5673859
    Abstract: In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat spray.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: October 7, 1997
    Assignee: Spraying Systems Co.
    Inventor: James Haruch
  • Patent number: 5654040
    Abstract: Methods and apparatus for spraying a liquid or hot melt material involve placing the material in a plurality of parallel grooves arranged across the entire width of a movable member and then causing a compressed gas to impinge upon the material in the grooves, thereby to spray the material from the grooves toward a substrate, as by extending, fiberizing or atomizing the material, or by mixing a gas with the material. For some materials of relatively high viscosity, a scraper is used to scrape the material from the grooves, and the compressed gas impinges the material while it is on the scraper, thereby to cause spraying. This provides a wide band deposition of a liquid or hot melt material with uniform material distribution across the entire width, along with improved ability to quantify the amount of material deposited on the substrate.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: August 5, 1997
    Assignee: Nordson Corporation
    Inventor: Masafumi Matsunaga
  • Patent number: 5649821
    Abstract: A gas burner of the type in which a inflammable mixture is caused to flow out of a diffuser, is formed of a plurality of parallel slots separated by grid elements, and distributed into a pair of grids separated by an elongate screen extending between the two grids. The burner includes at least one elongate slot extending perpendicular to said screen along the width of said grid pair, perpendicular to the screen, near the grids, and adapted to take up relative dimensional variations of said screen and the grid elements brought about by differential heatings of the screen and the burner walls surrounding the diffuser.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: July 22, 1997
    Inventors: Giuseppe Fogliani, Enrico Sebastiani
  • Patent number: 5642861
    Abstract: An improved sprinkler head for an irrigation system wherein the sprinkler heads are designed to include spray means for adequately watering both the area within two feet, the "dead zone", of each spray head and areas beyond two feet. The sprinkler head employs a high velocity primary outlet and a secondary low velocity spray outlet for covering the "dead zone". A tortuous pathway is formed between the primary passageway and second low velocity outlet which functions to induce turbulence substantially reducing pressure and velocity of the spray therefrom.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: July 1, 1997
    Assignee: Camsco Manufacturing Corp.
    Inventors: Jeffrey M. Ogi, David S. Worcester
  • Patent number: 5639025
    Abstract: A hand holdable spray delivery system for dispensing a fluid is provided. This spray delivery system includes a container adapted to house the fluid. The fluid being relatively viscous and preferably also being solids laden. A manually actuated pump device is mounted on the container. The pump device including an inlet passage, a pump chamber, and a discharge passage having a distal end connected in fluid communication so that the fluid is pumped from within the container, through the inlet passage, into the pump chamber and through the discharge passage upon manual actuation of the pump device. A spray nozzle including a housing having an inlet side and an exit side is also included. The housing having an internal recess through the inlet side that terminates in an elongated orifice at the exit side.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: June 17, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Stephan G. Bush
  • Patent number: 5628460
    Abstract: A device for linear spraying of a liquid includes a series of tubes (3.sub.1) which supply liquid from a supply pipe (4) to an elongated spray nozzle (7) in the wall of a chamber (1) and a pipe (2) for delivering gas to the chamber to drive the liquid out of the enclosure. An elongate element (5) is provided in the enclosure to receive the liquid from the feed means. The liquid is spread over a convex surface (5.sub.1) of the element and is then carried off by the gas and flows to two elongate slits (8.sub.1,8.sub.2) adjacent to the nozzle (7) and converging towards the latter. The width of these slits varies periodically and interdependently over their length to form two sheets of the liquid/gas mixture which come together at the nozzle (7) to form at its outlet a mist of liquid confined within an angle (.alpha.) from the nozzle.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: May 13, 1997
    Assignee: Bertin & Cie
    Inventors: Georges Chastang, Michel M. J. Chiron
  • Patent number: 5607109
    Abstract: A liquid fuel injector nozzle has a body terminating at one end in a plurality of substantially tear drop shaped discharge outlets through which fuel may be discharged in a spray and in such manner as to produce spaced apart vena contracta. The nozzle is produced by providing a cylindrical extension at one end of the injector body and forming a plurality of axially extending, circumferentially spaced slots in the extension to produce alternating slots and fingers. The tips of the fingers are deformed into engagement to convert the extension to conical configuration, thereby producing the tear drop shaped openings.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: March 4, 1997
    Inventor: Richard M. Von Berg
  • Patent number: 5588824
    Abstract: In an injection nozzle for introducing fuels into compressed gaseous media, for use in premixing burners for example, the injection nozzle (1) consists primarily of a fuel conduit (2) and a passage branching off from the fuel conduit. The fuel conduit (2) extends lengthwise essentially at right angles to the direction of introduction of the fuel and the passage extends parallel to the direction of introduction of the fuel. The fuel is fed via slots (6) in the fuel conduit and by means of the passage to an atomization edge (5). The inside of the passage is made up of distribution panels (3) between which distribution pins (4) are arranged.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: December 31, 1996
    Assignee: ABB Management AG
    Inventor: Robin T. D. McMillan
  • Patent number: 5570518
    Abstract: There is disclosed a method for drying a cylindrically-shaped substrate having a wet coating thereon which is oriented in a substantially vertical direction comprising directing a plurality of gas streams at a tangential angle against the substrate surface around the circumference of the substrate, wherein there is a plurality of imaginary lines on the substrate surface which are parallel to the longitudinal axis of the substrate, one imaginary line intersecting one gas stream, wherein each gas stream is directed upwards at an acute angle with the intersecting imaginary line, thereby reducing the gas pressure above a portion of the substrate surface which promotes drying of the coating.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: November 5, 1996
    Assignee: Xerox Corporation
    Inventor: Alan B. Mistrater
  • Patent number: 5566858
    Abstract: A compressed air safety gun for use underwater, having a handle and an elongate barrel extending therefrom, the handle including a valve therein being operable between open and closed position, by a trigger on the handle. A substantially flexible pneumatic hose connects at opposite ends between the handle and a pressurized air supply source for directing pressurized air flow to the valve in the handle, wherein operation of the trigger to open valve serves to direct the flow of pressurized air through the gun barrel and out from a distal end thereof. A coupling connectable to the distal end of the barrel is structured and disposed for attachment of various tools thereto, such as a nozzle for directing the flow of air from the barrel end.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: October 22, 1996
    Inventor: Andrew L. Ducker, III
  • Patent number: 5482211
    Abstract: A nozzle for generating a supercritical fluid from a cleaning fluid. The nozzle includes a mechanism for directing the supercritical fluid onto a surface of a part to be cleaned. The nozzle comprises a body having (a) an interior portion which includes a mechanism for generating the supercritical fluid by suitable temperature and pressure increase of the cleaning fluid; (b) an inlet portion for introducing the cleaning fluid into the interior portion; (c) an outlet portion for directing the supercritical fluid generated in the interior portion onto the surface of the part to be cleaned; and (d) counteracting mechanism for resisting high pressure that is produced during the generation of the supercritical fluid so as to permit the nozzle to be maintained a suitable distance from the surface of the part to be cleaned so that the supercritical fluid impinges on the surface.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: January 9, 1996
    Assignee: Hughes Aircraft Company
    Inventors: Sidney C. Chao, Thomas B. Stanford, Jr., Edward J. Palen, Chris Lee
  • Patent number: 5458291
    Abstract: A fluid applicator having a multi-zone noncontacting die set for dispensing a selected plurality of thin flat fiberized adhesive streams as uniform rectangular strips of adhesive on a substrate. The die set uses shims to establish the fiberizing air slot, and the adhesive dispensing and fiberizing air shims have tapered tabs to provide improved coating edge control. The fiberizing air die also has simplified fiberizing air flow, and the die set includes a mechanism for clamping the die set together which is especially suited for a multi-zone die set. The fluid applicator includes a manifold heater with a simplified and improved air flow, and a universal adhesive manifold.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: October 17, 1995
    Assignee: Nordson Corporation
    Inventors: Paul S. Brusko, Scott R. Miller, Alan R. Ramspeck
  • Patent number: 5429303
    Abstract: A steam spray tube with an inlet line (16) for steam, a nozzle arrangement (33) and a valve (19) positioned between the inlet line and the nozzle arrangement is described. With such a steam spray tube, adequate moistening of a web to be moistened can be assured even at high web velocities. To do so, an essentially straight acceleration channel (35) is arranged downstream from valve (19) in the direction of flow of the steam and a nozzle channel (36) to the nozzle arrangement (33) branches off from the acceleration channel at a predetermined distance from the end (37) of the acceleration channel (35).
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: July 4, 1995
    Assignee: V.I.B. Apparatebau GmbH
    Inventor: Stefan H. Winheim
  • Patent number: 5375770
    Abstract: A drip irrigation tape is formed from a strip of flexible material having a series of spaced indented grooves of serpentine shape extending along one side edge, the strip being folded with its opposite side edges overlapping and sealed together on opposite sides of the grooves to form a main conduit within the folded strip and a series of secondary conduits along the grooves. Breaks in the seal form inlets between the main conduit and each secondary conduit, and raised outlet ports connect the secondary conduit to the exterior of the tape. The grooves each have a series of elongated chambers offset alternately on opposite sides of the grooved region and interconnected by orifices of smaller dimensions than the chambers.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: December 27, 1994
    Inventor: James C. Roberts
  • Patent number: 5354378
    Abstract: Apparatus and methods for producing coatings, such as wax or hot melt adhesive, onto the tops and necks of wine bottles or similar objects. A slot nozzle die has elongated air slots along a vertically oriented slot extrusion opening. A hot melt or wax gun is disposed above the bottle neck to apply a bead of adhesive to the bottle top. In the operation of the apparatus, the air flow is initiated from both air slots prior to the initiation of the hot melt flow and is continued beyond that point in time, when the hot melt flow ceases. The air carries a film of coating material horizontally to the bottle neck. Means are provided for spinning the bottle about its vertical axis. The delays between the operations of the air flow and the coating flow are on the order of micro seconds. The merged coatings are heated to smooth the coating finish to produce a traditional neck seal.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: October 11, 1994
    Assignee: Nordson Corporation
    Inventors: Larry Hauser, Jurgen Benecke, Arthur Cieplik, Thomas Burmester, Michael L. Gill, Kerry Washington, Ron Evans
  • Patent number: 5301880
    Abstract: During the normal operation of a liquid-cleaning filter cartridge, which is located in a pressurizable inverted bell housing, contaminates are filtered through a sheet of wire mesh arranged in a star configuration on a frame structure within the filter cartridge. Contaminates collect on this filter bed, thus cleaning the dry cleaning solvent. During the system's backwash cycle, filtered solvent previously collected in a steel reservoir is pressurized to provide a powerful head of pressure for backflushing each filter cartridge through its own sprayer nozzle assembly which reciprocates inside the cartridge. The high-pressure spray vigorously cleans the wire mesh of all suspended contaminants and filter bed particles.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: April 12, 1994
    Assignee: Benian Filter Company, Inc.
    Inventor: Robert Benian
  • Patent number: 5295626
    Abstract: A spray apparatus including an airless spray system, a spray gun having an on and off control, and a center spray device coupled to the spray gun for providing a spray, the improvement which includes: a center valve device coupled to the center spray device for turning the center spray device on and off; a first extension device coupled to the spray gun for providing an extension from the spray gun; first spray device for providing a spray attached to the first extension device; a first device for directing pressurized liquid from the spray gun to the first spray device coupled to the first spray device; and a first valve device for turning the first spray device on and off coupled to the first spray device. The improved airless spray system reduces the cost of spray painting with an airless spray system and increases productivity, while maintaining an even spray fan beam.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: March 22, 1994
    Inventor: Rick Mirabito
  • Patent number: 5294021
    Abstract: A compressed air safety gun for use underwater, having a handle and an elongate barrel extending therefrom, the handle including a valve therein being operable between open and closed position, by a trigger on the handle. A substantially flexible pneumatic hose connects at opposite ends between the handle and a pressurized air supply source for directing pressurized air flow to the valve in the handle, wherein operation of the trigger to open valve serves to direct the flow of pressurized air through the gun barrel and out from a distal end thereof. A coupling connectable to the distal end of the barrel is structured and disposed for attachment of various tools thereto, such as a nozzle for directing the flow of air from the barrel end.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: March 15, 1994
    Inventors: Andrew L. Ducker, III, Gary D. Dalton
  • Patent number: 5255854
    Abstract: A burner head for gas burners with a number of gas outlet nozzles for the temperature treatment of profiles, particularly for the temperature treatment of elongated profiles, in which a relative movement between these and the burner head takes place, features gas outlet nozzles (2, 3), terminating in a plane (4) common to all nozzles, in which, as a result of the spatial arrangement of the nozzle outlets (2, 3) with respect to each other, these cover a rectangular area section of the plane.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: October 26, 1993
    Assignee: Alcatel N.V.
    Inventors: Norbert Keim, Klaus Gorner, Martin Kass
  • Patent number: 5209410
    Abstract: A nozzle assembly for electrostatically dispensing a flowable material at a controllable rate and in a reliable and uniform manner includes a housing with a dispensing edge and front and rear members joined together to provide a continuous dispensing slot along the dispensing edge. The nozzle is a unitary device having a plurality of substantially hydraulically independent chambers therewithin in fluid communication with the substantially continuous and uninterrupted dispensing slot, whereby flowable material can be selectively supplied to the individual chambers to control the width of material application without structurally modifying the nozzle itself. Field gates are provided at each end of the nozzle to further control the deposition of the charged material, and the nozzles can be oriented to dispense flowable material in substantially any orientation, including vertically upwardly.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: May 11, 1993
    Assignee: United Air Specialists, Inc.
    Inventors: Frederick R. Wichmann, Donald R. Henry
  • Patent number: 5148982
    Abstract: A nozzle system for dispensing fluidic materials including powder and/or liquid including an elastic tube having at least one transverse slit. The tube can include a tube formed from a tight coil of wire or a tube formed from an elastomeric material and the slits are formed as openings between loops in the coil or cuts in the elastomeric tube. The size of the opening of the slits is determined by tension applied to the tube or by bending the tube. One means of control includes two clamp members, one on each side of the tube wherein the clamp members are hinged together. A ram between clamp members provides means for adjusting the bend in the tube in the area of the slit. The ram can be controlled by one of a number of means including pneumatic or a screw.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: September 22, 1992
    Inventor: Donald L. Ekhoff
  • Patent number: 5139417
    Abstract: An improvement to conventional atmospheric gas burners particularly advantageously applied to the type used as surface heating units in gas cooking appliances such as ranges and cooktops, which typically comprise a burner head having a plurality of primary burner ports formed at port locations equally spaced about the periphery of the burner head. Improvement is realized by not forming primary burner ports at selected ones of the equally spaced port locations. The unused port locations are selected so as to separate the primary ports into groups. The reduction in the number of ports reduces the total port area thereby reducing the amount of primary air entrained in the air/gas mixture delivered to the burner. In addition the resulting spacing of the groups of ports has the effect of reducing the amount of secondary air per port relative to that which would be entrained by the same number of ports, if equally distributed about the periphery.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: August 18, 1992
    Assignee: General Electric Company
    Inventor: Reza Ghassemzadeh
  • Patent number: 5127582
    Abstract: Nozzles for use on a rotary agitator of a water and/or waste water filter system have an outer housing including a rear section through which the nozzle is connectable to the rotary agitator, and a forward wall including a plurality of ports therethrough. Fluid passage means extend from the rear connecting means to the ports for transmitting fluid from the agitator through the ports.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: July 7, 1992
    Assignee: Roberts Filter Manufacturing Company
    Inventor: R. Lee Roberts
  • Patent number: 5125425
    Abstract: A nozzle (10) with lateral slots (16, 17 and 18) for discharging a high pressure liquid for treating a work material (30) is described. The nozzle has a constriction orifice (15) between an enlarged or main orifice (13) and restriction orifice (14) leading to the slots which increases the velocity of the liquid issuing from the slots. The nozzle is particularly adapted for deburring transmission fluid channels in transmission main control valve bodies.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: June 30, 1992
    Inventors: Michael E. Folts, Mahammed Abdo
  • Patent number: 5108034
    Abstract: A spray header and nozzle assembly which includes a first elongated tubular member and a second elongated tubular member of a smaller diameter than the first tubular member coaxially disposed within the first tubular member to form an annular space between the first and second tubular members and a plurality of spray nozzle assemblies in fluid communication with the inside of the second tubular member. The spray nozzle assemblies are perpendicularly disposed to the axis of both tubular members and recessed into the annular space. Also, the nozzle assemblies include a first tube extending a predetermined distance beyond the circumference of the first tubular member and a second tube of a smaller diameter than the first tube coaxially disposed within the first tube and recessed into the first tube.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: April 28, 1992
    Assignee: The Dow Chemical Company
    Inventors: Andrew M. Huey, Arthur R. Shirley, Jr.
  • Patent number: 5102329
    Abstract: A burner suitable for use in conjunction with an air heater. The burner has a burner plate including a plurality of slots. The burner plate slots are aligned with and spaced from fuel supply tubes. The tubes have spaced apart orifices that discharge fuel gas in conical patterns and direct the gas jets through the slots in the burner plate and into the combustion chamber downstream from the burner. A baffle plate is positioned above the fuel supply tubes and extends across an air supply plenum. The baffle plate includes air discharge orifices through which the air from the plenum enters the burner in substantially uniform flow. The baffle plate orifices direct the air toward the burner plate for cooling. The air heated by the burner plate eventually flows toward and through the burner plate slots where it forms a layer between the fuel gas jets and the perimetrical surfaces and edges of the burner plate slots and, thus, maintains the fuel gas spaced from these surfaces and edges.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: April 7, 1992
    Assignee: Coen Company, Inc.
    Inventor: Vladimir Lifshits
  • Patent number: 5065945
    Abstract: An improved spray nozzle assembly particularly adapted for use in dispersing cooling fluids onto the opposed relatively narrow sides of a pair of slabs in a split or twin cast continuous steel casting system. The discharging spray nozzle assembly is fashioned with a nozzle body having a manifold which is common to a plurality of transversely mounted spray nozzle heads. Each spray nozzle head has a plurality of closely spaced, slit-like discharge openings that communicate with the manifold via a barrel-like mixing chamber and internal flow passages, Each of the discharge openings on each of said spray nozzle heads has a specifically configured shape to facilitate an even distribution of coolant throughout a substantially rectangular spray pattern.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: November 19, 1991
    Assignee: Spraying Systems Co.
    Inventors: Daniel A. Vidusek, Justin D. White
  • Patent number: 5059115
    Abstract: A fuel fire burner has a plenum chamber to which fuel and air are supplied. One of the walls of the plenum chamber is generally flat and has a plurality of substantially rectangular slots extending therethrough, the slots serving as combustion ports for the fuel. The wall also has an integral rim extending therefrom on a side thereof opposite the plenum chamber.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: October 22, 1991
    Assignee: British Gas plc
    Inventor: David M. Sutton
  • Patent number: 5049065
    Abstract: The present specification relates to a ceramic plaque burner and to its method of construction. The plaque burner is formed as a generally planar plate with a number of parallel, narrow slit burner apertures extending therethrough. The present invention provides a ceramic plaque burner comprising a number of elongate ceramic members which are arranged parallel to each other with spacers located therebetween, a bezel engaging around the elongate ceramic members and said spacers to hold the assembly together. This construction is relatively simple and inexpensive to manufacture and avoids the problem of thermal stress cracking at the end regions of the burner slits.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: September 17, 1991
    Assignee: Valor Limited
    Inventors: Martin L. Smith, Alan Constable, Alan V. Hinton
  • Patent number: 5025722
    Abstract: A spray dampening system is disclosed having a number of spray nozzles arranged in laterally spaced relationship, for spraying dampening fluid onto a dampening roll of a printing press in laterally adjacent individual spray patterns which merge on the dampening roll surface in a substantially continuous and laterally extending composite spray pattern. The system, through an arrangement of a plurality of guideway slots on a stationary member and cam slots on a pair of reciprocally movable cam members, moves the spray nozzles simultaneously laterally toward and away from each other and axially toward and away from the dampening roll surface, so that the width of the composite spray pattern may be adjusted while preventing excessive overlapping of the laterally adjacent individual spray patterns.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: June 25, 1991
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventors: Thomas G. Switall, Robert O. Bloomquist
  • Patent number: 5020469
    Abstract: An apparatus, including a manifold pipe, for applying variable amounts of steam to sections of a calenderable material to control certain properties of the material such as gloss. Built-in steam flow control valves are provided along the manifold pipe to control the amount of steam applied to each section. Bucket nozzles provided on the valves decrease the velocity of the steam jetted from the valves and eliminate any condensate present in the steam before discharging the steam against a surface of the calenderable material. Condensate which may form on the apparatus may be channeled away from the calenderable material by a pair of gutters.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: June 4, 1991
    Assignee: Measurex Corporation
    Inventors: Mathew G. Boissevain, Tobias J. Boissevain, Anthony D. Foskett
  • Patent number: 5017409
    Abstract: Spray coating, particularly flat spray coating of circuit boards. Applicant's method of conformal coating, eliminates "railroading" at the edges of the flat spray web and assures precise control of the amount of coating material placed on the circuit board surface.The method includes longitudinally advancing a pressurized coating over a surface to be coated, while simultaneously feeding the coating in a flat spray pattern, and triggering feeding "ON/OFF" so as to proportion the amount of coating being fed onto the surface and to reduce "fishtail" at the edges of the flat spray pattern.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: May 21, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventor: Hendrik F. Bok
  • Patent number: 5012980
    Abstract: The pressurized gas is supplied by two sleeves separated by a sprayer device forming a funnel. The narrow end of the funnel has a spraying head with, in the plane of symmetry (P) of the device, at least one slot through which the liquid flows. The pressurized gas passes through a series of openings provided on either side of the slot. A liquid supply tube is arranged parallel in relation to the wide end of the funnel and has openings through which the liquid flows directly or indirectly into the funnel and passes through the slot without any appreciable pressure.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: May 7, 1991
    Assignee: Bertin & Cie
    Inventors: Stephane G. J. Viannay, Bernard M. Roth, Solange M. V. Mirigay, Georges J. B. Chastang
  • Patent number: 5002038
    Abstract: A burner construction and method of making the same are provided, the burner construction comprising a burner body having a chamber therein and having opposed ends one of which is open to the chamber and the other of which has structure for interconnecting a source of fuel to the chamber, and a removable cap closing the one end of the body, the burner construction having ports interconnecting the chamber to the exterior of the burner construction and through which the fuel can issue to burn externally to the burner construction, the burner construction comprising a removable venturi section disposed in the chamber and being removable therefrom through the open end of the body when the cap has been removed therefrom.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: March 26, 1991
    Assignee: Robert Shaw Controls Company
    Inventor: Fred Riehl
  • Patent number: 4971255
    Abstract: A granular chemical bander including a housing having an upper neck section and a lower body section. The neck section has a top opening for receiving a supply tube, and a horizontally disposed deflector plate having feed openings at each lateral side. The body section is divided into a front compartment in communication with the opening of one lateral side, and a rear compartment in communicaton with the opening at the other lateral side. Granular material flowing into the front and rear compartments is directed laterally away from the respective feed opening by diagonal baffles and is discharged in a band laterally off-set from the feed opening.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: November 20, 1990
    Inventor: Larry M. Conrad
  • Patent number: 4951880
    Abstract: A burner construction and a method of and an apparatus for making the same are provided, the burner construction comprising a wall structure having an exterior surface and having an interior surface that defines a chamber in the burner construction for receiving fuel from a fuel source, the wall structure having a plurality of elongated ports formed through the surfaces thereof and thereby communicating with the chamber, the ports being disposed in spaced apart substantially parallel relation with each port being defined between a pair of adjacent edges of the wall structure that are disposed in spaced apart substantially parallel relation whereby fuel is adapted to flow from the chamber out through the ports between the adjacent edges thereof to burn adjacent the exterior surface of the wall structure, the edges each being extruded into the chamber beyond the interior surface of the wall structure.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: August 28, 1990
    Assignee: RobertShaw Controls Company
    Inventor: Fred Riehl
  • Patent number: 4948295
    Abstract: Pipe for watering plants, having an inner feed pipe (1) provided with orifices (5) and of substantially circular cross-section, on the outside surface of which there are one or a plurality of layers of fibrous material (2a, 2b). The feed pipe (1) and the layers of fibrous material covering at least the orifices (5) therein are enclosed by a casing (3) which is impervious to water and which has a longitudinal slit (4) disposed radially outside over the orifices (5) and through which the water, enriched with fertilizer if necessary, can pass into the soil under control.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: August 14, 1990
    Inventor: Arnold Pramsoler