Patents Examined by Daniel R. Edelbrock
  • Patent number: 4722482
    Abstract: An electrmagnetic intermittent injection valve for supplying fuel to an intake duct of an internal combustion engine comprising a hollow body having a fuel inlet for admission of fuel from a fuel supply, a fuel outlet for supply of fuel to an intake duct of an internal combustion engine, and a fuel return for returning fuel back to the fuel supply. A ball valve is movable in the body between a first position in which the fuel outlet is closed and a second position in which the fuel outlet is open. A spring acts on the ball to urge the ball to the first position. A soft iron core is disposed in the body in facing relation with the ball, the body including a housing end portion of soft iron facing the ball valve. A coil in the body serves for energizing the core and the housing end portion for producing a magnetic field having lines of flux acting on the ball valve to urge the ball valve to the second position against the resilient opposition of the spring.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: February 2, 1988
    Assignee: Pierburg GmbH & Co. KG
    Inventors: Wolfgang Jordan, Dieter Thonnessen
  • Patent number: 4711400
    Abstract: The electroinjector according to the invention is provided with a small tubular armature, whose bottom wall is constituted by a plate, of material which resists deformation due to impact and directly fastened on to the cylindrical side wall of the same armature, with which a shutter of an injection nozzle is fixedly secured.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: December 8, 1987
    Assignee: Alfa Romeo Auto S.p.A.
    Inventors: Dario Radaelli, Walter Giraudi
  • Patent number: 4708293
    Abstract: The improved atomizer comprises a first and a second mixer for a fuel delivered through a central inlet and for an atomizing fluid delivered through a peripheral inlet, the first mixer including a first mixing chamber whereto the fuel arrives from the central inlet and the atomizing fluid arrives from peripheral ducts, and the second mixer including a second mixing chamber for the fuel and the atomizing fluid that complete their mixing therein and a plurality of outlets for the delivery of the completely atomized fuel to a firebox, the relations among the length, diameter and cross-sectional area of certain parts of the atomizer being defined to impart an effective atomization to the fuel and supply a superior jet of atomized fuel to the firebox.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: November 24, 1987
    Assignee: Enel-Ente Nazionale per l'Energia Elettrica
    Inventors: Mario Graziadio, Sergio Ligasacchi
  • Patent number: 4706887
    Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine includes a valve member biased by a spring against the action of fuel under pressure supplied to an inlet. A further spring acts in opposition to the first mentioned spring through a piston like push piece. The fuel pressure also acts upon the push piece in opposition to the force exerted by the further spring and the extent of movement of the push piece under the action of the further spring is limited.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: November 17, 1987
    Assignee: Lucas Industries public limited company
    Inventors: David M. Harvey, Charistopher J. Moody
  • Patent number: 4706885
    Abstract: The present invention provides a paint distribution system which is particularly suited for a multiple station paint spray operation. The system includes a reservoir of paint and a piping system having an inlet and outlet both of which are open to the reservoir. A pump pumps the paint from the inlet and towards the outlet while a plurality of liquid taps, for example paint spray guns, are provided along the piping system at spaced intervals. The piping system further includes a plurality of conduit segments wherein one conduit extends between each paint tap. Furthermore, the length and internal diameter of each conduit segment is dimensioned to produce a predetermined of paint flow through each tap when the tap is closed.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: November 17, 1987
    Inventor: Rolland L. Morin
  • Patent number: 4706758
    Abstract: An automatic on-off fire extinguishing sprinkler head including a housing defining inlet and outlet openings; a valve retained by the housing and disposed between the inlet and outlet openings, the valve being movable between a closed position in which it prevents fluid flow between the inlet and outlet openings and an open position in which it allows fluid flow therebetween and a latch releasably latching the valve in the closed position. A release mechanism responds to a sensor by releasing the latch to allow movement of the valve into the open position at a predetermined ambient temperature. Operatively coupled to the valve is a temperature responsive actuator shaped and arranged to allow movement of the valve into its open position in response to ambient temperatures above a given level and to force the valve into its closed position in response to ambient temperatures below the given level.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: November 17, 1987
    Assignee: U.S. Fire Control Corporation
    Inventor: Wilfred V. Johnson
  • Patent number: 4699320
    Abstract: A fuel injector (10) is provided for each cylinder of an internal combustion engine, the injector including an electronically operated control valve (146) disposed between supply passage 42 and a timing chamber (98) to control the admission of fuel into and out of the timing chamber. A primary pumping plunger (62) and a secondary plunger (90) are axially spaced within the central bore of the injection body, and a normally closed injection nozzle (14) is situated at one end of the injector body. A mechanical linkage (27, 28, 30) associated with the camshaft of the engine drives the primary pumping plunger (62) against the bias of a main spring (18). The timing chamber (98) is defined between the plungers (62, 90) and a metering chamber (128) is defined between the secondary plunger (90) and the nozzle (14).
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: October 13, 1987
    Assignee: Allied Corporation
    Inventors: Albert E. Sisson, Donald J. Lewis
  • Patent number: 4699321
    Abstract: An improved sprinkler head (2) having a hollow housing (4) has a fluid inlet (5) for admitting water into housing (2). A drain valve (40) comprises an elongated flexible nipple (34) having an open upper end (35) and a closed lower end (36) having a normally closed drain passage (42). Nipple (34) is mounted in any drain port in housing (4). Whenever fluid pressures inside housing (4) increase above a first level, nipple (34) will have its walls bowed outwardly until the drain passage (42) is opened. Preferably, drain valve (40) is part of a check valve (30) which incorporates into it the structure of nipple (34).
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: October 13, 1987
    Assignee: The Toro Company
    Inventors: Jon A. Bivens, Stephen L. Tyler
  • Patent number: 4697737
    Abstract: A wind-controlled spraying apparatus is arranged to contain electrical contacts and essential mechanical parts within a single housing and to provide switching contacts on a printed circuit board designed as part of a control circuit for the spraying apparatus. The apparatus includes a nozzle that sprays insecticides into the wind for predetermined periods of time in response to changes in wind direction indicated by a wind-blown conducting tube that contacts only one of the switching contacts on the printed circuit board at any time.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: October 6, 1987
    Inventor: George W. Pearce
  • Patent number: 4696431
    Abstract: An augmentor liner support band is formed having finger positioners for connecting the support band to an augmentor liner; the support band being formed of three built-up ribbons, or strips, or sheet metal, one inner ribbon having spaced fingers extending therefrom; a second and middle ribbon being corrugated; and a third plain outer ribbon extending around the corrugated ribbon forming a rigid band. The inner ribbon is circumferentially spaced from an augmentor liner while the free ends of the extending fingers are attached to an axially spaced part of the augmentor liner.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: September 29, 1987
    Assignee: United Technologies Corporation
    Inventor: Paul M. Buxe
  • Patent number: 4691864
    Abstract: A fuel injection nozzle of the outwardly opening type has a nozzle body defining a bore in which is slidable the stem of a valve member having a head. A spring biases the head into contact with a seating to prevent fuel flow through an outlet opening from a fuel inlet connected to a nozzle inlet. An insert has a skirt portion which engages with the body to define a closed chamber. The valve stem forms part of the wall of the chamber and as the valve member is moved towards the open position the volume of the chamber is increased thereby causing a restraining force to be applied to the valve member additional to the force exerted by the spring.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: September 8, 1987
    Assignee: Lucas Industries public limited company
    Inventor: Godfrey Greeves
  • Patent number: 4690328
    Abstract: A spraying device consists of a frame having an arm universally-pivoted thereon which has a spray nozzle at the outer end. The frame is designed to be supported on a forklift-type truck having a fork movable thereon. The frame has retaining elements for receiving and supporting the fork and the arm is received through pneumatic cylinders. The arm has first and second parts which are rotated relative to each other by a pneumatic motor.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: September 1, 1987
    Assignee: Bentonspritz Nascgubeb GmbH Co.
    Inventor: Franz Roehl
  • Patent number: 4688667
    Abstract: The chute attachment is attached to a chute on cement truck at a receiving end so that cement might flow through the receiving end to an outlet end having a reduced size compared to the receiving end and into the desired place. A closure assembly is provided to close the chute attachment to thereby cut off the flow of cement, and minimize or avoid any spillage. The chute attachment has a frame which includes a circular assembly having large, middle and small circular members. The members are secured together at a common tangential point and a cover is secured to the frame.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: August 25, 1987
    Inventor: James C. Peterson
  • Patent number: 4687138
    Abstract: In high-pressure cleaning units with heating stages, i.e. with a possibility for circulating a partial flow of the forwardly pumped water through a constricted, heat-generating nozzle (74) in a return conduit to the pump's inlet side, the problem occurs that the entire water flow circulates at high pump pressure upon temporary interruption of ejection, which causes an inexpediently high heating of the water. By the invention, apparatus is provided for sensing this situation and thus block the return conduit (70,72), so that the pressure tends to rise; in this way, however, the cleaning unit's ordinary bypass valve (12) will sense that delivery from the pump (P) is totally blocked, whereby it connects the pump in bypass state in the ordinary way through a non-constricted bypass connection (14). In this way, ejection can be interrupted temporarily without any substantial heat accumulation in the circulating water, and another advantage is that the ejection conduit itself is pressure relieved in the situation.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: August 18, 1987
    Assignee: Knud Erik Westergaard
    Inventor: Tage V. Ostergaard
  • Patent number: 4687139
    Abstract: A rotary, pop-up sprinkler is provided which includes an in-ground container. A motor is reciprocably mounted in the container and includes a stator, a plate assembly mounted on the stator and a rotor rotatably received in the stator. The rotor includes a turret with a nozzle orifice. Hydraulic pressures on the rotor are balanced whereby anti-rotational drag is substantially reduced. A speed regulator is provided for maintaining a relatively constant rotational speed when the sprinkler is subjected to variances in hydraulic pressure.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: August 18, 1987
    Assignee: Imperial Underground Sprinkler Co.
    Inventor: James F. Lockwood
  • Patent number: 4687140
    Abstract: The spraying condition adjusting mechanism of a spraying apparatus according to the present invention has a regulating member fitted on the spraying condition adjusting member so as to turn together with the spraying condition adjusting member, and stoppers are formed in the main housing of the spraying apparatus and the regulating member, respectively, to limit the turning of the spraying condition adjusting member, so that spraying apparatus can be adjusted simply to a desired spraying condition by turning the spraying condition adjusting member within a limited range defined by the stoppers.
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: August 18, 1987
    Assignee: Nippon Seiki Co., Ltd.
    Inventor: Kyohei Hasegawa
  • Patent number: 4687142
    Abstract: A method for producing a smooth finish on the surfaces of a valve seat and a discharge port of a fuel injection valve having a main fuel injection valve body containing an electromagnetic coil, a fixed core, a movable core attracted magnetically towards the fixed core by the coil and a valve rod attached to the movable core and having a valve body for opening and closing a fuel discharge port in a valve seat-forming member attached to the valve body. The fuel discharge port is formed with a smooth surface finish by discharging a honing fluid against the surface. The honing fluid is also discharged against the surface of the valve seat to provide a smooth finish thereon and to provide a rounded corner at the juncture of the seat surface and the fluid discharge port.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: August 18, 1987
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Kabushiki Kaisha Keihinseiki Seisakusko
    Inventors: Isamu Sasao, Yoshiyasu Takaoka
  • Patent number: 4684064
    Abstract: Centrifugal atomizer head for connection to a high speed rotary atomizer, having an outer disk for receiving and atomizing liquid, and a central disk fitted over the outer disk so as to create an annular liquid passage therebetween, the central disk having a central recess with a plurality of openings through the recess to receive liquid for passage into the recess and over the central disk and over the outer disk.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: August 4, 1987
    Assignee: Graco Inc.
    Inventor: Kui-Chiu Kwok
  • Patent number: 4676435
    Abstract: A sprayer comprising a housing (10) having an internal aperture in which a spool (12) is mounted for translational movement is disclosed. The spool has a nozzle (32) mounted to it. A cavity (30), formed in the spool, is configured to provide a passageway for directing fluid from an inlet (20) in the housing to the nozzle when the sprayer is in a spraying position. The cavity also provides a fluid passageway from the fluid inlet to a fluid outlet (21), which is also formed in the housing. The latter fluid passageway permits a reverse fluid flow through the nozzle. The direction of the reverse fluid flow is opposite to spraying flow direction. Thus, the reverse fluid flow cleans the nozzle by removing matter that clogs the nozzle. A pneumatically actuated, double-acting piston and cylinder assembly is used to move the spool between the spraying position and the cleaning position.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: June 30, 1987
    Inventor: Nickolas B. Nesland
  • Patent number: 4674682
    Abstract: Admixing of an atomized liquid to a gas flow (7 FIG. 1) may be performed without risk of recirculation and clogging caused thereby if the supply of atomized liquid according to the present invention is effected in separate part flows introduced into said gas flow (7) in such directions that each part flow has a component in the same direction as the direction of the gas flow (7). Each part flow is supplied at such location that it is wholly surrounded by a part of the gas flow (7). The invention also relates to a device for carrying out the above method, which device comprises a number of atomizing tubes for supply of the separate part flows of liquid and atomizing gas. The tubes have such axial and radial direction relative to the gas flow that the atomized liquid is directed into the gas flow to treat the gas flow in an area radially outside the tubes.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: June 23, 1987
    Assignee: Bejaco AB
    Inventor: Bengt L. Hansson