Patents Examined by Kevin Weldon
  • Patent number: 6065547
    Abstract: A fire extinguisher nozzle including a horn defining a discharge chamber and a discharge member mounted to the horn. The discharge member includes an entry passageway for receiving fire extinguishant from a source therefor. The entry passageway communicates with a plurality of transverse discharge passageways and a central, axial passageway for delivering the fire extinguishant into the discharge chamber of the horn. Improved throw characteristics for fire extinguishants are achieved.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: May 23, 2000
    Assignees: MetalCraft, Inc., Great Lakes Chemical Corporation
    Inventors: Ernest E. Ellis, Jr., Michael C. Sain, Mark L. Robin, Steven T. Ginn
  • Patent number: 6062487
    Abstract: A method for the controlled break-up of liquid jets for production of substantially monodispersed drops stands out for the fact that it comprises the steps of feeding a plurality of first liquid jets having steady motion to a plurality of mutually independent sectors and defined in a perforated surface, forming a head of liquid in the sectors near the perforated surface, causing the liquid to flow across the perforated surface to form a plurality of second liquid jets, periodically changing with a predetermined frequency the momentum of the liquid fed to a predetermined sector so as to impart to the liquid present in said sector a disturbance of predetermined magnitude consisting of a periodic change in the pressure near the perforated surface which is transmitted to the second liquid jets causing their controlled break-up in a plurality of substantially monodispersed drops.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: May 16, 2000
    Assignee: Urea Casale S.A.
    Inventor: Gianfranco Bedetti
  • Patent number: 6062495
    Abstract: The present invention relates to a high pressure, rapid cutting tip nozzle which provides a cutting oxygen jet hole 2b in the front end surface, and provides concentrically from the inside, with this cutting oxygen jet hole 2b as the center, a first oxygen jet hole group 7a, a first fuel gas jet hole group 8c, a second fuel gas jet hole group 8a, and an oxygen jet opening 9a, and wherein steel is cut by the high pressure gas flow jetting from the cutting oxygen jet hole 2b, and in particular is characterized in the front end of flow paths 9b and 9c, which branch from the flow path 9 leading to the oxygen jet opening 9a, opening on the side surface of flow paths 8 and 8b, which lead to the first and second fuel gas jet hole group 8c and 8a, at a point within 10 mm from said front end surface. According to the present invention, gas cutting of steel can be carried out with high efficiency and safely.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: May 16, 2000
    Assignee: Nippon Speng Co., Ltd.
    Inventors: Bunnosuke Ushioda, Tamiya Yoshino
  • Patent number: 6059202
    Abstract: A high pressure liquid sealing connection between two relatively rotatable liquid passage members of a rotary nozzle or a swivel. The connection is formed by two abutting relatively rotatable annular coaxial sealing members forming a high pressure liquid passage between the relatively rotatable members. Both sealing members are carried and kept coaxial by a seal holder carried by one of the relatively rotatable passage members. Both sealing members are forced axially relative to the seal holder by high pressure liquid flow at the sealing connection to maintain a dynamic sealing relationship between the sealing members and to force one of the sealing members into sealing contact with and rotation with the other of the relatively rotatable passage members. As the other sealing member substantially wears away by relative rotation of the sealing members it is forced axially relative to the seal holder and toward the one sealing member to maintain the sealing integrity of the sealing connection.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: May 9, 2000
    Assignee: Stoneage, Inc.
    Inventors: Gerald P. Zink, John E. Wolgamott, Douglas E. Wright
  • Patent number: 6059204
    Abstract: An accumulator fuel injection system for a multi-cylinder internal combustion engine with solenoid controlled fuel injection valves each including a spring loaded fuel injection nozzle needle to which fuel under pressure is supplied under the control of a solenoid controlled piston with a valve structure at one end for controlling fuel supply to the nozzle needle, the control piston has at its end an axial projection extending into a fuel supply cavity to restrict the fuel passage from the fuel supply cavity through the valve structure to the nozzle needle upon initial lifting of the control piston but permitting unrestricted flow after a predetermined lifting stroke, that is, solenoid energization period, and the solenoid is energized by a first energization pulse of a duration t.sub.1 and, after an interruption period t.sub.2 by a main energization pulse t.sub.2 during which the control piston is fully lifted for unrestricted fuel flow to the nozzle needle.
    Type: Grant
    Filed: December 19, 1998
    Date of Patent: May 9, 2000
    Assignee: DaimlerChrysler AG
    Inventor: Ulrich Augustin
  • Patent number: 6059046
    Abstract: A fire protection system for a clean room semiconductor fabrication facility involves the use of a low pressure carbon dioxide source and a discharge system to extinguish fires detected in or near the tools. Each tool is plumbed with dedicated carbon dioxide suppression agent discharge plumbing. The system individually monitors each tool for fire, preferably using infrared radiation sensors and linear heat detection cable. A remote control panel responsive to the fire detectors controls the discharge of carbon dioxide suppression agent unless there is operator intervention. A user interface at or near the respective tool includes various manually actuated controls to override the automatic operation of the fire protection system, and therefore allow a supervisor to eliminate or at least minimize the amount of clean up, repairs and downtime associated with the discharge of carbon dioxide suppression agent in case of a false alarm. The components of the fire protection system (e.g.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: May 9, 2000
    Assignee: Grunau Company, Inc.
    Inventor: James E. Lowry
  • Patent number: 6056211
    Abstract: A hydrant flushing diffuser handles a flow of water from a hydrant as it is being flushed. The diffuser allows the flushing to take place in a safe manner and without destroying surrounding landscaping or other objects. The invention includes a hydrant flushing diffuser having a hood and a chute. The hood has a closed top and an open base and includes an aperture. The chute further comprises a porous fabric bag that is open on one end, wherein the chute is connected to the hood so that open end of the bag surrounds the aperture in the hood.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 2, 2000
    Assignee: Atlantic Construction Fabrics, Inc.
    Inventor: Rinaldo J. DiLoreto
  • Patent number: 6056204
    Abstract: The first preferred embodiment of an improved fluid mixing system comprises a synthetic jet actuator aligned perpendicular to a primary fluid flow. When the synthetic jet actuator is driven at a very high frequency, small scale mixing of the primary fluid flow can be effectively controlled. A second preferred embodiment for a mixing system comprises at least one synthetic jet actuator attached to the housing of a primary jet such that the direction of the synthetic jet flow will be parallel to the direction of the primary jet flow. If the two jets are allowed to operate at the same time, the synthetic jet actuator will have the effect of more effectively mixing the primary jet into the ambient fluid. Another embodiment of an improved mixing system comprises a synthetic jet actuator situated in a closed volume. The fluid flow created by the synthetic jet actuator in the closed volume will greatly aid mixing of the fluids in the chamber without injecting any new matter into the chamber.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: May 2, 2000
    Assignee: Georgia Tech Research Corporation
    Inventors: Ari Glezer, John W. Wiltse
  • Patent number: 6056214
    Abstract: A fuel injector having pressure equalization passages is provided to equalize the pressure differential across an armature in high vapor pressure fuels. At least one through passage is included that extends from a chamber beneath the armature to a chamber atop the armature to prevent differential pressure buildup when the injector is closed. The passages enable communication between the areas above and below the armature to rapidly equalize the pressure acting on the armature as the boiling bubbles burst and the fuel "explodes".
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: May 2, 2000
    Assignee: Siemens Automotive Corporation
    Inventor: Louis G. DeGrace, Jr.
  • Patent number: 6053425
    Abstract: An injector includes a nozzle body having a bore and defining a seating, and a fuel flow path along which fuel flows, in use, towards the seating. A needle is slidable through a range of movement within the bore, and engagable with the seating to control fuel flow to an outlet aperture. The needle includes a thrust surface against which fuel at high pressure acts, in use, to lift the needle from its seating. The bore and needle together define a restriction to the flow of fuel along the fuel flow path towards the seating. The restriction is located upstream of the thrust surface, and the restriction is arranged to restrict the rate of flow of fuel towards the seating throughout the range of movement of the needle. In a preferred embodiment, the restriction is arranged such that the rate of fuel flow towards the seating through the restriction varies as the needle separates from the seating.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: April 25, 2000
    Assignee: Lucas Industries
    Inventor: Christopher Stringfellow
  • Patent number: 6053429
    Abstract: An industrial spray gun cup structure includes a connector, a guide member, a collar and a cover body. A reception section of the cup is engaged with the guide member so that the cup can be only normally rotated without rotating and loosening other parts. The cup is integrally formed with inclined ribs which are tightly fitted with corresponding connecting sections of the cover body. While rotating the cover body by a certain angle, the ribs can be separated from or inserted with the connecting sections so as to open or close the cover body. Therefore, the cover body can be conveniently rotated to firmly and tightly fit with the cup without leakage.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: April 25, 2000
    Inventor: Jen-Chih Chang
  • Patent number: 6050498
    Abstract: A multiple color painting apparatus has dedicated passages for carrying paints from a plurality of paint tanks each filled with paint of a different color. A single pump is disposed at the outlets of the dedicated passages. The delivery passage of the pump is used as a single common passage. A paint gun is connected to this common passage. As a result, when the paint color being used is changed it is not necessary for the dedicated passages to be washed with washing liquid and only the common passage from the pump to the paint gun need be washed.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: April 18, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shuji Minoura, Daisuke Nakazono
  • Patent number: 6050343
    Abstract: A system for extinguishing a fire in a tank filled with a flammable liquid product: a receptacle having an explosive charge within it and an extinguisher product that is dispersable over the flammable product to extinguish a fire there. Fuses that are ignited by contact with the fire communicate from outside the receptacle into the explosive charge. A flotation device below the receptacle, e.g. a lower bowl or a shell or flotation elements. The receptacle has an upper closing cover. The receptacle may be held beneath the surface of the flammable product by a weight to which the receptacle is moored by a rope that extends above the flammable product. The rope is separated by a fire of the flammable product, freeing the receptacle to float to the surface where the fuse to the explosive charge is ignited.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: April 18, 2000
    Inventor: Benigno Garcia Calvo
  • Patent number: 6047908
    Abstract: A material spreader comprising a mobile tank for receiving and discharging waste material, such as manure. The spreader includes a conveying assembly comprising one or more augers rotatably mounted in the tank for conveying material received in the tank to a discharge area. An opening in the vicinity of the discharge area permits material to be dispensed to a slinger assembly mounted outside the tank adjacent the opening. Material is distributed by the slinger in a controlled pattern as the tank is transported over a field.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: April 11, 2000
    Assignee: New Holland North America, Inc.
    Inventors: Shaun A. Seymour, Jack W. Crane
  • Patent number: 6047903
    Abstract: The invention is a flow conditioner for a fire nozzle which is located upstream of the nozzle outlet. The conditioner reduces swirl and improves flow characteristics. The conditioner of the present invention is manufactured from a single plate, wherein a plurality of passages for fluid flow are provided. The openings are tapered inwardly on there upstream inlet and tapered outwardly at the discharge opening. A nozzle outlet deflector is connected to the plate by a stem in one embodiment.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: April 11, 2000
    Assignee: Orion Safety Industries Pty. Limited
    Inventor: David J. Meyer
  • Patent number: 6047898
    Abstract: A portable fountain having a hand truck supporting a liquid reservoir. A control cabinet is attached to the upper portion of the truck. The control cabinet encloses a suction pump and the electronics to withdraw liquid from the reservoir. A multiplicity of hoses having control spouts are attached to a dispensing manifold in fluid communication with the suction pump.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 11, 2000
    Assignee: Alert Services, Inc.
    Inventor: Lem L. Cox
  • Patent number: 6045055
    Abstract: The present invention is directed to a device for delivering a fluid to the surrounding environment. The device includes a housing having an interior region and at least one opening, a fluid contained within the interior region, and a device means to force the fluid through the opening, and against gravity. Such a forcing device preferably comprises a gas generating pump, designed to force fluid positioned below the opening through a channel or conduit and out of the housing. Moreover, the opening in the housing may be associated with a member for controllably releasing fluid from the housing, for instance one or more porous plugs, an emanator pad, a decorative element or an adjustable valve. Additionally, the invention contemplates the use of a moveable member, such as a piston, flexible bladder, or expandable bladder, to separate the fluid from the gas generating pump and assist is forcing fluid out of the housing.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: April 4, 2000
    Assignee: Ceramatec, Inc.
    Inventors: Ashok V. Joshi, John Joseph McEvoy, Truman Christian Wold, II
  • Patent number: 6044912
    Abstract: A sprinkler head connected with a fire extinguishing piping maintains a valve body in a closed state so as to contain compressed fire extinguishing water filled in a fire extinguishing piping when there is no fire, but opens and operates the valve body so as to discharge the compressed and supplied fire extinguishing water at the time of a fire. The fire extinguishing water is contained by closing the gap between the valve body and the peripheral part of the valve body by a sealing member mounted in the valve body, prepared by coating a rubber base material with a fluorine contained resin coating material. The rubber base material of the sealing member can have a round, oval, U-shaped, Y-shaped, or X-shaped cross-sectional shape. The rubber base material can be made from a fluorine rubber or a silicon rubber.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: April 4, 2000
    Assignee: Hochiki Kabushiki Kaisha
    Inventors: Toshihide Tsuji, Katsuaki Tonomura, Suguru Shimokawa
  • Patent number: 6042019
    Abstract: A gas cap for a thermal spray gun has a spray passage extending from the combustion chamber to an exit end, and a thermal spray material is fed into the passage. A nozzle component of the gas cap is formed of a tubular inner member in thermal contact with a metallic outer member, such as copper, that is in contact with a fluid coolant. The inner member is formed of a hard, thermally conductive material, preferably a carbide in a metal matrix, such as tungsten carbide in cobalt.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: March 28, 2000
    Assignee: Sulzer Metco (US) Inc.
    Inventor: William P. Rusch
  • Patent number: 6042025
    Abstract: A multiple hole, preferably a two hole spray dispensing system and sprayer in which colliding streams of viscous fluid are dispensed to the atmosphere are provided. The spray dispenser includes a reservoir for storing a fluid product. An aerosol or manually pressurized dispensing system preferably a hand held dispensing system may be used. Liquid is delivered from the reservoir under pressure to a delivery passageway. A nozzle having two or more outlets to the atmosphere is mounted to the delivery passageway to provide colliding streams of liquid. Baffles are provided to disrupt the flow of liquid in the stream prior to the collision of the streams to provide an improved spray pattern.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: March 28, 2000
    Assignee: Smith et al.
    Inventors: David C. Crampton, Robert Smith