Fluid Discharge Reaction Nozzle Patents (Class 134/179)
  • Patent number: 5038810
    Abstract: The present invention relates to a boom operated chute cleaning device including a boom assembly with a reel designed to store and pay out a fluid conduit from which is hung a chute cleaning device. The chute cleaning device includes a frame assembly with guide structure designed to guide the travel of the cleaning device within a chute and a rotatable spraying assembly mounted on the frame assembly and supplied with fluid through the fluid conduit. As the chute cleaning device is moved up and down within the chute, fluid pressure supplied through the fluid conduit will flow out the rotatable spraying assembly causing rotation thereof to allow complete cleaning or other treatment of the interior walls of the chute.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: August 13, 1991
    Inventors: Daniel Pacheco, Jerry Andrews
  • Patent number: 5020556
    Abstract: A vehicle wash system is disclosed which consists of an arch through which a vehicle can be moved. A plurality of spinning nozzle assemblies are attached to the arch each having a number of nozzle outlets for directing the water to the vehicle surface to remove dirt, salt, etc. in which only water impacts the vehicle. The nozzles are oriented so as to create a rotational moment to spin the nozzles relative to the nozzle assembly. An oil pump is contained within the assembly to provide a resistance to rotation to regulate the speed of nozzle rotation. Each water nozzle includes an air nozzle to form a sheath of air around each water jet to maintain the integrity of the water jet to maximize the water jet impact force with the vehicle surface.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: June 4, 1991
    Assignee: 501 Peerless Pump Company
    Inventors: Olli Lamminen, Erkki A. Koivunen
  • Patent number: 4993443
    Abstract: A sewer cleaning apparatus having a movable vehicle provided with a hose which is adapted to be fed into a sewer and provided with a nozzle having a back spray for transporting the hose along the sewer. The hose is mounted at its end opposite the nozzle on a reel mounted on the vehicle and the vehicle contains means for rotating the reel to wind the hose back onto the reel. A second hose is connected to the first hose and extends to a remote source of water pressure such as a second vehicle having a water reservoir and a high pressure pump.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: February 19, 1991
    Assignee: City of Crystal Lake
    Inventor: Phillip S. Buchert
  • Patent number: 4991611
    Abstract: A spray arm assembly for delivering a fluid under pressure into a dishwasher wash chamber consists of a spray arm having a rotational axis and defining a fluid passageway for distributing incoming fluid into the wash chamber, a tower section, structure for mounting the tower section to the spray arm for guided movement relative to the spray arm between a retracted position and an extended position, and structure on the tower section for directing fluid from the fluid supply into the wash chamber with the lower section in its extended position. Mounting structure, integrally formed with the spray arm, prevents the tower section from separating from the spray arm with the tower section in its extended position. Any number of cooperating tower sections can be employed.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: February 12, 1991
    Assignee: Whirlpool Corporation
    Inventors: Wilbur W. Jarvis, John I. Smith, Kirk A. Gutmann, Lane S. Duncan, Richard D. Taylor, Richard W. Germuska
  • Patent number: 4930531
    Abstract: The invention relates to a device for cleaning the inside of a container.A rotor (10) has mounted on it at least one nozzle (12) oriented tangentially so as to cause the rotor to rotate when the said nozzle emits a jet (13) of liquid intended to clean the inside of the container. The rotor (10) is itself mounted on a rotating head (6) capable of rotating about an axis xx' not parallel with the axis yy' of the rotor, this head being provided with an auxiliary spout (7) which causes it to rotate about this axis xx', such that the whole of the inner surface of the container is scavenged. Preferably, the nozzle (12) and the auxiliary spout (7) are supplied with the same cleaning liquid.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: June 5, 1990
    Assignee: Tecnoma
    Inventor: Patrick J. Ballu
  • Patent number: 4923120
    Abstract: The nozzle device having a plurality of spray orifices comprises a nozzle support rotatably mounted about a rotation axis and drivable by the reaction force of pressurized water issuing from the orifices, whose rotational motion is braked by an eddy current brake, and a stationary housing having a pressurized water connector. The nozzle device may be used with high operating pressures, particularly in cleaning rust and eroding concrete. A seal against these high operation pressures between the stationary parts and the water-guiding rotation parts in the housing is provided. A stationary sleeve with a central passage in the housing extends from the pressurized water connector guiding pressurized water into the central duct of a hollow shaft connected to the nozzle support rotatably mounted in the housing. The central passage widens in diameter relative to the central duct.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: May 8, 1990
    Inventor: Paul Hammelmann
  • Patent number: 4919162
    Abstract: A sink located dishwasher is disclosed having a cover for the sink, a rack for dishes locatable in the sink, and a removable spray arm assembly mounted in the sink drain. The spary arm assembly includes a spray arm rotatably mounted at the upper end of a hollow shapft to rotate in the sink below the rack. A pair of seals are provided on the shaft to seal the shaft within the drain. Water is pumped from the drain above both seals and returned to the drain between the seals from where it flows up the hollow shaft and rotates the spray arm.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: April 24, 1990
    Assignee: McIlwraith Davey Pty. Ltd.
    Inventors: David Lumby, Stephen Dawkins
  • Patent number: 4895179
    Abstract: Cleaning apparatus for cleaning a generally planar generally horizontal surface comprises at least one nozzle for providing a jet of cleaning liquid directed against the surface and which is mounted by an arm on a shaft for rotation about the axis of the shaft which is perpendicular to the surface. The nozzle rotates within a chamber defined by a casing assembly which has an open lower end closed by the surface to the cleaning and which carries a seal for sealing against the surface to contain cleaning liquid within the chamber. The casing assembly defines a peripheral liquid collection region from which the liquid is withdrawn through an outlet by a pump. The nozzle is self-motivating and may be associated with an impellor having blades for inducing flow of ambient fluid, e.g. air, into the chamber, the air flowing out of the chamber with the cleaning liquid and assisting removal of cleaning liquid therefrom.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 23, 1990
    Assignee: Harben Systems Limited
    Inventor: Bernard E. Hart
  • Patent number: 4884585
    Abstract: An improved rotary sprayer for an automatic dishwasher includes a pair of elongated hollow arms containing a plurality of nozzles and a pair of end nozzles for periodically and alternately opening and closing, respectively by rotation of rotation converting valve which is, in turn, driven by valve driving member whereby dishes held in the dish racks is uniformly cleaned by spraying the surface of the dishes with the cleaning water by the nozzles.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: December 5, 1989
    Inventor: Yang H. Oh
  • Patent number: 4869428
    Abstract: A hand actuated, connect/disconnect arrangement is provided for the spray arms of a dishwasher. The spray arms are rotably mounted to a spindle having a cylindrical stem portion and a larger cylindrical spacer portion adapted to fit within the bore of a hub member in turn connected to the water supply. A tab segment extending inwardly in the bore and an ear section extending outwardly from the spindle are rotated into overlying contact with one another in a connected position whereby a washer is compressed to seal the hub and stem while preventing the ear-tab contact surface from inadvertently rotating to a disconnect position.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: September 26, 1989
    Assignee: Jackson Products Company
    Inventor: Eugene Gombar
  • Patent number: 4826539
    Abstract: The specification discloses an apparatus and method for cleaning printing screens or the like work surfaces in which solvent is pumped from a reservoir to the surface to be cleaned at a point closely adjacent a vacuum cleaning tool. The vacuum cleaning tool is connected by a vacuum line to the reservoir and vacuum means are provided to draw a vacuum on the reservoir whereby solvent is delivered to the surface to be cleaned and residue laden solvent is vacuumed off the surface to be cleaned through the vacuum tool and vacuum line. A clean up tray and light panel are provided to facilitate the clean up operation. A control assembly comprising independently or simultaneously actionable foot pedals for control solvent feed and vacuum is provided.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: May 2, 1989
    Assignee: Harco Graphic Products, Inc.
    Inventor: Charles W. Harpold
  • Patent number: 4807654
    Abstract: Disclosed herein is a dishwasher having a rack which has a circular protusion formed around its outer periphery so that the rack can be removably suspended from the upper inner periphery of the diswasher tub. A rotary nozzle head assembly is rotatably secured to a central portion of the bottom of the dishwasher tub and connected at its lower end to a water pressure supply. The rotary nozzle head includes a plurality of nozzles for spraying the contents of the dishwasher tub retained in the rack. One of the nozzles in the nozzle head is located to spray against one of the impeller vanes formed on a rotary impact impeller provided at the top of the rotary nozzle head assembly. This causes another impeller vane to impact against an annular supporting frame secured to the top of the rotary nozzle head. In this way, the rotary nozzle head rotates intermittently for effective washing of the contents of the dishwasher tub.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: February 28, 1989
    Inventors: Ho Jui-Chi, Wu Shun-chih
  • Patent number: 4804006
    Abstract: A portable, countertop dishwasher having a washing media dispensing nozzle structure which includes radially-projecting, washing media-dispensing arms located in surrounding relationship with the axis of the nozzle structure and axially intermediate upper and lower nozzle structure pivot supports, the unitary dish rack including support structures for supporting articles to be washed within the radial sweep of the radially perfecting arms of the nozzle structure and being selectively removable from the dishwasher independently of the nozzle structure. The lower nozzle structure has dispensing nozzles for discharging washing media only vertically upward and the upper nozzles structure has dispensing nozzles for discharging washing media substantially only horizontally.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: February 14, 1989
    Inventor: John B. Shaw
  • Patent number: 4679578
    Abstract: In the preferred and illustrated embodiment set forth herein, a tuned nozzle cleaning system is disclosed for a variety of vehicles. The vehicle cleaning system incorporates upstanding frame members positioned to the left and the right of a vehicle driven along a guided path. The frame supports in a pivoting, sliding, bushing an elongate oscillatory header rod. The header rod is connected at its opposite end to the throw of an eccentric mechanism which imparts rotation to that end of the header rod, thereby moving in reciprocating fashion to describe a regular pattern of movement. The header rod is preferably hollow, conducting water along its length. Water is delivered from a high pressure pump with suitable detergents and is pumped to various spray nozzles along the rod.This system incorporates a water spray nozzle having a novel construction. Each nozzle is supported by a tee so that water flows through the tee and into a short tube made of resilient material.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: July 14, 1987
    Inventor: Richard M. Miller
  • Patent number: 4586825
    Abstract: A fluid agitating apparatus includes a housing having an inlet at an open lower end thereof, and an outlet at an open upper end thereof, with a flow passage disposed through the housing communicating the inlet and the outlet. The flow passage is preferably circular in cross-section and has a minimum diameter at a throat thereof. The diameter of the flow passage increases continuously from the throat toward both the inlet and the outlet. A vertically upward directed nozzle is located in the flow passage below the throat for inducing flow of fluid from a body of fluid in which the housing is submerged into the inlet and upward through the flow passage. A tangentially directed nozzle is disposed in the flow passage above the throat for inducing a swirling flow in the fluid flowing upward through the flow passage. This creates a swirling vortex type flow exiting the outlet of the housing which provides agitation of the fluid in which the apparatus is submerged.
    Type: Grant
    Filed: June 22, 1982
    Date of Patent: May 6, 1986
    Assignee: Asadollah Hayatdavoudi
    Inventor: Asadollah Hayatdavoudi
  • Patent number: 4557283
    Abstract: A portable, countertop dishwasher having a washing media dispensing nozzle structure which includes radially-projecting, washing media-dispensing arms and an improved unitary dish rack located in surrounding relationship with the axis of the nozzle structure and axially intermediate upper and lower nozzle structure pivot supports, the unitary dish rack including support structures for supporting articles to be washed within the radial sweep of the radially projecting arms of the nozzle structure and being selectively removable from the dishwasher independently of the nozzle structure.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: December 10, 1985
    Inventor: John B. Shaw
  • Patent number: 4518041
    Abstract: A method and system for cleaning well liners employing a non-rotating tubing string attached to a hydraulic jet carrier assembly is disclosed. The assembly has a plurality of jet nozzles spaced along its length, each of said nozzles expelling a stream of fluid under pressure against the liner with a force which has an equal and opposite reactive force. At least some of the nozzles are oriented along the carrier such that the reactive force for each jet is directionally offset with respect to the central axis of the carrier, thereby creating a twisting moment tending to rotate the carrier about its central axis. During the cleaning operation, the bottom hole differential pressure of the fluid supplied to the jet carrier is varied to rotationally displace the carrier as it is moved vertically within the well bore. Moreover, in a preferred embodiment, the angle of rotational displacement can be calculated which will produce at least double coverage of the jet streams against the liner.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: May 21, 1985
    Inventor: Casper W. Zublin
  • Patent number: 4509687
    Abstract: A dishwashing machine including upper and lower dish supporting racks and a liquid wash spray assembly having a rotating arm for spraying water upwardly on the lower dish load and an extendable top wash tube which sprays liquid at an intermediate level between the upper and lower dish supporting racks in the machine. A liquid diverting system provides means for automatically alternating the flow of water between the rotating spray arm and the extendable top spray tower. Water is directed continuously to a jet port on the spray arm which insures that the arm will continue to rotate independent of the liquid diverting system when the water is diverted to the top spray tower. The spray arm and tower each deliver effective water flow on an alternating basis while the overall flow rate and the total water consumption is reduced.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: April 9, 1985
    Assignee: General Electric Company
    Inventor: Donald S. Cushing
  • Patent number: 4489741
    Abstract: An apparatus for washing an endoscope by spraying washing liquid thereagainst is disclosed, which comprises a housing including a washing tank, and a rotary body rotatably mounted on a central portion of the washing tank. The rotary body has a horizontal cylindrical inner space formed in its upper portion. The rotary body carries an upper nozzle, which includes a cylindrical body capable of being retracted into the cylindrical space and a nozzle tip provided on the free end of the cylindrical member and directed downwards. The cylindrical member has a piston provided on its rear end and biased by a spring in the direction of retraction of the cylindrical member into the cylindrical space. The rotary body also carries a lower nozzle secured to its lower portion and directed upwards. When pressurized washing liquid is supplied to the upper and lower nozzles, it is sprayed from these nozzles against an endoscope which is set at a level between these nozzles.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: December 25, 1984
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Tadahiko Ogasawara
  • Patent number: 4448011
    Abstract: An apparatus which can clean powdered material from a filled pouch during a filling operation and at the same time introduce an inert atmosphere into the pouch prior to sealing. The apparatus includes a pair of wheel members mounted on a shaft for opposite rotation, the wheels having apertures which will eject inert gas in an opposing direction. The wheel members serve the dual function of blowing powdered material from the top of the filled pouch while at the same time introducing an inert atmosphere therein. The wheel assembly is especially suited for a high speed filling operation such as that commonly found in conjunction with a multiple stationed and rotatable filling apparatus.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: May 15, 1984
    Assignee: Abbott Laboratories
    Inventor: Peter H. Pohl
  • Patent number: 4442899
    Abstract: A method and system for cleaning well liners employing a non-rotating tubing string attached to a hydraulic jet carrier assembly is disclosed. The assembly has a plurality of jet nozzles spaced along its length, each of said nozzles expelling a stream of fluid under pressure against the liner with a force which has an equal and opposite reactive force. The nozzles are oriented along the carrier such that the reactive force for each jet is directionally offset with respect to the central axis of the carrier, thereby creating a twisting moment tending to rotate the carrier about its central axis. During the cleaning operation, the bottom hole differential pressure of the fluid supplied to the jet carrier is varied to rotationally oscillate the carrier as it is moved vertically within the well bore to increase the coverage of the fluid streams on the liner.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: April 17, 1984
    Assignee: Downhole Services, Inc.
    Inventor: Casper W. Zublin
  • Patent number: 4420005
    Abstract: A unique water powered dishwasher having an improved rotatable spray arm and liquid detergent dispenser. The liquid detergent dispenser is located directly above the chamber which feeds water downwardly into the central hub of the spray arm. The rotatable spray arm is suspended from an axial shaft that also rotates and which is supported by the bottom of the liquid detergent dispenser, thus using liquid detergent as a lubricant to facilitate rotation of the spray arm. Water forced upwardly from the chamber leading to the spray arm lubricates the adjacent surfaces of the rotating hub and the stationary lower end of the chamber to further facilitate rotation of the spray arm. The top cover and base which contains the dishwasher have been designed for minimal storage space when not in use. The top cover, when inverted, will accept the bottom half of the dishwasher, thus requiring little storage space.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: December 13, 1983
    Inventor: Daniel Armstrong
  • Patent number: 4230276
    Abstract: Two embodiments of an assembly for directing a fluid, such as a combination of air and a liquid, toward a vehicle headlamp for cleaning the headlamp surface. A support member is adapted at a first end to be connected to a vehicle body adjacent a headlamp and extends to a forward end which supports a nozzle guide or cage member. The assembly includes an elbow member having a fluid inlet and support flanges for receiving retaining fasteners. A supply tube is connected to the inlet of the elbow. The elbow member has an outlet which extends transversely of the inlet and a flailing flexible tube is connected to the outlet and has a loop integral therewith extending about the elbow member for retaining the flailing tube thereon. The cage member has a terminal end defining an opening and is of generally funnel shape for restricting the flailing movement of the emitting end of the flailing tube. In the second embodiment a cover is disposed over the cage member.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: October 28, 1980
    Assignee: McCord Corporation
    Inventors: David V. Tinder, Walter E. Mack
  • Patent number: 4146406
    Abstract: The bottoms of transport barge tanks when emptied of high consistency treated sludge are automatically and quickly hosed clean of heavy sediment, as much as a foot deep without labor and with an economical use of a reversely directed progressively self-rotated stream of water that is easily serviced.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: March 27, 1979
    Assignee: Ingram Industries, Inc.
    Inventor: David F. Sampsell
  • Patent number: 4135532
    Abstract: An improved dishwasher is provided, which is particularly intended for domestic low-pressure water supplies. The dishwasher has a container with a floor and an open top which is closable by a lid. A water inlet extends into and a water outlet drains water from the container. A rotatable spray unit is supported rotatably in the container, and has a tubular T-shaped spray member. The T-shaped member includes a substantially vertical tubular stem, and a first tubular arm and a second tubular arm, both of which are substantially horizontal and are joined at the top to the vertical stem and have their ends closed off. A fluid guide joins the water inlet to the vertical stem for supplying water into the vertical stem and the horizontal arms. A number of spaced holes are provided in the vertical stem and in the first and second arms for providing jets of water for rotating the tubular spray unit and for washing and rinsing articles placed inside the container.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: January 23, 1979
    Inventor: Ernest Rutherford
  • Patent number: 4078727
    Abstract: A rotatable nozzle construction comprises a fixed hollow shaft which has a passage extending therethrough for the flow of the fluid. The distributor head is rotatably mounted on the shaft and it has at least one radially extending distributor head flow passage with an inner end which communicates with a radially extending portion of the shaft flow passage and an outer end which communicates with an annular passage defined around the periphery of a nozzle holder which is rotatably mounted at the periphery of the distributor head. The nozzle holder includes a generally radially extending distributor flow passage which terminates in a nozzle discharge which is at right angles to the axis of the shaft. The nozzle holder may be rotated on the distributor head so as to position the nozzle at any desired angle and the nozzle holder may be locked in the selected position.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: March 14, 1978
    Assignee: Woma-Apparatebau W. Maasberg & Co. GmbH
    Inventor: Horst Lingnau
  • Patent number: 4056227
    Abstract: A tank cleaning device, wherein a supply tube delivers cleaning fluid into a flushing head rotatable about the tube axis and then into the nozzle of a nozzle unit mounted in the flushing head for rotation about an axis perpendicular to the tube axis, comprises a hydraulic brake cylinder coupled to the nozzle unit for variably controlling the rotational speed thereof in dependence on the rotational position of the nozzle unit. A crank couples the brake cylinder (or piston) to the shaft on which the nozzle unit is rotated for oscillating the cylinder (or piston). A mechanism couples the piston (or cylinder) to the flushing head for rotating the flushing head about the supply tube axis upon oscillation of the cylinder (or piston).
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: November 1, 1977
    Inventor: Olav Hakon Fismen
  • Patent number: 4031910
    Abstract: An articulated spray applicator particularly suited for use in cleaning the interior of segmented flues and the like characterized by a plurality of series connected angularly related conduits, each having an internal passage a longitudinal axis and a plurality of spray orifices, each orifice having an axis extended tangentially to a circle concentric to the axis, a stationary support supporting adjoining conduits for rotational movement about the longitudinal axes thereof and interconnecting the passages in a fluid transferring series relationship, and a coupling connecting the passage of at least one of the conduits with a source of fluid under pressure, whereby the fluid is discharged as a spray from the orifices and a turning moment acting about the axes is established for imparting rotation to the conduits.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: June 28, 1977
    Inventor: Richard L. Lawson
  • Patent number: 4030513
    Abstract: A tank washer such as for use in washing bulk milk tanks, including a liquid-driven spray head rotatably carried on a supply tube extending downwardly into the tank. The spray head is caused to rotate at a relatively low speed, permitting generally square jet streams of the washing liquid to develop a spray pattern effectively completely wetting the interior of the tank to provide effectively optimum washing action. The spray head includes a drain port for draining the apparatus upon termination of the washing liquid delivery. The spray head may be formed of a plurality of similar annular elements and securing structure for securing the elements in a tubular assembly adapted to be rotated coaxially about the delivery tube by reaction force generated by the jet streams. The annular elements cooperatively define the jet ports and include deflector shoulders for directing a portion of the jet streams angularly upwardly.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: June 21, 1977
    Assignee: Babson Bros. Co.
    Inventor: Wray V. McKenzie
  • Patent number: 4026473
    Abstract: An assembly for directing a fluid, such as a combination of air and a liquid, toward a vehicle headlamp for cleaning the headlamp surface. A box-like support member is adapted at a first end to be connected to a vehicle body adjacent a headlamp and extends to a distal end to be positioned forwardly of the headlamp. The distal end of the box member includes a front wall with an aperture therein to define retaining flanges. An elbow member having a fluid inlet is disposed within the box member and has support flanges which overlap and engage the retaining flanges of the box-like member. A supply tube is connected to the inlet of the elbow and a coil spring is disposed about the supply tube and engaging the elbow member urging the elbow member forwardly. The elbow member has an outlet which extends upwardly and rearwardly from the inlet and a flailing flexible tube is connected to the outlet and has a loop integral therewith extending about the bottom of the elbow member for retaining the flailing tube thereon.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: May 31, 1977
    Assignee: McCord Corporation
    Inventors: David V. Tinder, Walter E. Mack
  • Patent number: 4014467
    Abstract: A manually disengagable coupling for joining together fluid conduit portions for flow therethrough and a dishwasher incorporating such a coupling in a fluid conduit which has portions extending within a housing for enclosing dishes to be washed. By means of the manually disengagable coupling, portions of the fluid conduit may be removed from within the housing of the dishwasher for purposes of cleaning the dishwasher interior, while rotational and angular displacement between the joined conduit portions is resisted by characteristics of the coupling described more fully hereinafter.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: March 29, 1977
    Assignee: Duff-Norton Company, Inc.
    Inventor: George R. Ferguson
  • Patent number: 3994310
    Abstract: An apparatus for cleaning debris from ducts. The apparatus has a pair of rotatable jets with one of the jets having a zero orifice and the other jet having a spread orifice. A means supports the jets and fluid is supplied to them. Fluid leaving the jet having the zero orifice impinges the debris and cuts it from the duct and fluid leaving the other jet having the spread orifice produces a flushing action removing the debris after it has been cut from the duct.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: November 30, 1976
    Inventor: John H. Brandon
  • Patent number: 3961984
    Abstract: A compact dishwasher which is particularly adapted for placement in a sink or sink/tub combination and which connects directly to a faucet.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: June 8, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Albert F. Torressen
  • Patent number: 3938534
    Abstract: An apparatus for washing cereals to wash them in a cereal washing tank by a jet water rotor. The invention includes collecting the water-cereal mix and removal of the heavier cereals from the mix which overflows a receiver to remove lighter weight wastes.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: February 17, 1976
    Inventor: Nobuo Akizawa