Impeller Patents (Class 261/84)
  • Patent number: 5279520
    Abstract: An improved reliable easily installed and maintained humidifier and draft control that is installed on a common ceiling mounted forced air duct output register and has an easily replaced and maintained water bowl and fan mounted above the water bowl that has radially extending fan blades about an axle in the center of the fan that rotates when air is discharged from the register and the air is directed to facilitate air movement that assures evaporation of the liquid placed in the bowl and the fan blades may be shaped to direct the flow in a predetermined manner.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: January 18, 1994
    Inventor: Carl R. Robinson, Jr.
  • Patent number: 5248613
    Abstract: A centrifugal film bioreactor useful for processing both shear sensitive and shear requiring or tolerant cells. A liquid phase is directed upward in a guide tube to rotating truncated conical surfaces which transport the liquid phase across their surfaces. After leaving the conical surfaces, the liquid passes through a gaseous phase and may contact the wall of the fermentation vessel and then combine with the downward moving liquid phase in the lower part of the fermentation vessel, where it circulates. The maximum entrainment of the gaseous phase into the liquid phase occurs while the liquid phase is passing through the gaseous phase. Different configurations of guide tube propellers and fermentation vessel, allow for processing of different shear tolerant cells.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: September 28, 1993
    Inventor: Rudolf V. Roubicek
  • Patent number: 5246632
    Abstract: An ion generator capable of producing a quantity of negative electrically charged ions comprises a container for a liquid including H.sub.2 O. A stirrer or pump imparts controlled rotation to the liquid, while maintaining continuous surface tension on the liquid surface.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: September 21, 1993
    Inventor: Fred A. Wentworth, Jr.
  • Patent number: 5230837
    Abstract: A fragrance dispenser utilizing a fragrance dispensing wheel is described. The fragrance wheel is directly mounted onto a rotatable motor shaft, the motor being powered by either conventional A.C. or D.C. current, or by a photovoltaic cell. Absorbent panels on the wheel direct ambient air in response to motor rotation. When powered by photovoltaic cell fragrance is dispensed in an economic and safe manner in proportion to room lighting.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: July 27, 1993
    Inventor: Wolfgang W. Babasade
  • Patent number: 5194144
    Abstract: An improved aeration device for septic tanks which allows fine bubbles of air to aerate waste material in the tank so that aerobic bacteria may fully perform their decomposing function. Air enters the upper end of a shaft and exists adjacent a propeller. The propeller is protected from interfering with its bubble formation action by a guard bushing concentrically positioned in the air tube so that typical non-organic waste adulterants such is plastic and rubber materials, that are often found in septic tanks, are not drawn into the propeller to interfere with its action.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: March 16, 1993
    Assignee: Sewage Aeration Systems, Inc.
    Inventor: Ronald S. Blough
  • Patent number: 5159894
    Abstract: A apparatus of atomizing a high solids viscous composition onto a substrate and foaming the composition comprising mixing a coating composition with a gas forming agent under elevated pressure and temperature. The coating composition is airlessly atomized and projected onto a substrate. The gas remains dissolved in the coating after depositing on the substrate which causes the coating to foam after striking the substrate. The apparatus provides a permanent foam coating composition with uniform cell distribution. The apparatus is particularly suitable for foaming polymeric coatings such as plastisols and foods such as peanut butter or chocolate.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: November 3, 1992
    Assignee: Nordson Corporation
    Inventors: Laurence B. Saidman, James C. Smith
  • Patent number: 5123398
    Abstract: A fuel gasifier for an internal combustion engine having a gasification chamber, a device for injecting fuel into the chamber in droplets of about 30-50 microns or less in diameter, an ambient air inlet to the chamber with a flow control therefor, to admit a controlled amount of ambient air to mix with the fuel, a heater in the chamber to elevate the fuel temperature and convert the fuel to a gaseous state, a fuel and air mixing and transfer impeller in the chamber for increasing turbulence and propelling the mixture from the chamber, an annular venturi flow passage for flow of additional ambient air past the outside of the chamber, and a plurality of radial passages between the chamber and the venturi passage for flow of the turbulent mixture into the venturi passage and entrainment of the fuel and air mixture into the additional ambient air.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: June 23, 1992
    Assignee: Sunotyx Incorporated
    Inventors: Rudolph W. Klaus, James L. Knowlton
  • Patent number: 5121602
    Abstract: A pollution control apparatus is shown for use on automobiles and trucks. This pollution control apparatus fits on the automotive exhaust pipe. A collector unit is secured between the exhaust pipe and tail pipe. The collector unit has a pair of blowers or bladed rotors which are impinged by a mixture of exhaust gases and water which causes the water droplets and dissolved and entrained materials to separate and drain through outlet drains. Water is injected into a U-shaped trap between exhaust pipe and the collector unit. Water from the bottom of the collector unit is pumped by a pump to a reservoir and entrained material is separated by a filter. Water from the filter drains by gravity through a radiator coil and thence to the reservoir from which it flows through vacuum valve to a U-shaped fitting. The water is injected into the exhaust gas stream to wash out entrained and soluble material. The mixture flows through blowers which cause the entrained and water-dissolved material to separate as described.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: June 16, 1992
    Inventor: Allan F. McCorvey
  • Patent number: 5028315
    Abstract: In froth flotation apparatus for separating solid particle impurities from a liquid suspension stock in a flotation cell, provision is made for aerating the stock flowing through the inlet conduit leading to the cell by positioning a drum-shaped rotor having an irregular outer surface in the conduit on an axis extending transversely of the conduit, directing a supply of air against the rotor surface on the upstream side of its rotational axis, and causing the rotor to rotate at a linear speed of its outer surface which is substantially higher than the linear flow rate of the stock in the conduit so that the rotor surface breaks up the air impinging thereon into bubbles and distributes those bubbles in the stock flowing therepast to create foam within the cell.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: July 2, 1991
    Assignee: The Black Clawson Company
    Inventors: Ronald D. Cruea, Michael F. Kinne
  • Patent number: 4944898
    Abstract: An air freshener dispensing device is mounted on the blade of a ceiling fan and includes channels that are shaped to increase the velocity of air relative to the air freshener product over the velocity of the air relative to the case in which the air freshener product is contained as the fan blade rotates. The case is releasably mounted on the fan blade so the product can be changed or replenished.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: July 31, 1990
    Inventor: Stephen B. Glaser
  • Patent number: 4940214
    Abstract: A furnace maintains metal in a molten condition as a melt, and part of the melt is exposed in a charging well where lightweight solid scrap is introduced into the furnance. A vortex generator imparts a vortex to the melt within the well, so that lightweight solid scrap is quickly submerged in the well. The vortex generator includes an impeller which rotates within the well and actually creates the vortex. In addition, it has an elevator from which the impeller is suspended as well as a drive motor for turning the impeller, with the motor being on the elevator. An elevator frame serves to guide the elevator and the elevator frame is in turn connected to a trolley which runs along a track that passes over the charging well, but also extends well beyond it.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: July 10, 1990
    Assignee: Gillespie & Powers, Inc.
    Inventor: John R. Gillespie
  • Patent number: 4896971
    Abstract: A mixer which provides axial flow in a non-uniform flow field, such as may be established by gas which is sparged into a medium being mixed in a tank, and provides large axial flow volume without flooding and withstands variable loads on the blades thereof, thereby providing for reliable operation. The mixer impeller is made up of paddle shaped blades, which near their tips (e.g., at 90% of the radius of the impeller from its axis of rotation) are of a width at least 40% of the impeller'a diameter. The blades also having camber, twist and flat sections. The flat sections being at least in the center area of the base of the blades. The hub for attaching the blades to the shaft of the mixer has radially extending arms with flat surfaces. The base of the blades are spaced from the shaft to define areas therebetween.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: January 30, 1990
    Assignee: General Signal Corporation
    Inventors: Ronald J. Weetman, Richard A. Howk
  • Patent number: 4859376
    Abstract: An improved carbonator and method is disclosed which delivers water under pressure to a carbonator from a pump driven by the carbonating gas under pressure, the exhaust from which is mixed with the water being carbonated. Alternative embodiments are disclosed which are configured in unitary, low-cost, compact configuration conducive to cooling within confined compartments. Low operating pressures permit convenient use of inexpensive plastic components for efficient operation.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: August 22, 1989
    Assignee: Aquatec
    Inventors: Mark W. Hancock, Marvin M. May
  • Patent number: 4840905
    Abstract: A process for culturing biological material capable of multiplication, especially cells securely adhering to microcarriers, employs a bioreactor having a vessel for a culture medium having means for controlling the environmental conditions in the culture medium and a stirring device for the homogeneous distribution of the cells in the culture medium which has a rotary drive and a rotation axle running in the interior of the vessel, wherein the stirring device has at least one flat stirrer blade fixed on to the rotation axle and inclined to the rotation axle.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: June 20, 1989
    Assignee: Boehringer Mannheim GmbH
    Inventors: Michael J. Kearns, Michael J. Comer
  • Patent number: 4833895
    Abstract: A spin disk evaporator includes a pan suspended from a cage enclosing a motor rotating a spin disk and a fan for moving an air stream across the pan and outward for the evaporator. The disk includes a cone-shaped tip immersed in water held in a sump portion of the pan. Rotation of the disk causes a film of water to be picked up by the tip and moved across a water transfer surface to a circumferential wall of the disk. Water collected on the inner surface of the wall separates and moves through grooves from the inner surface of the wall across the end of the wall to the outer surface. Water exits from the grooves at a circular edge and is dispersed into the air stream as extremely fine water particles.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: May 30, 1989
    Inventor: Dwight N. Johnson
  • Patent number: 4793144
    Abstract: The invention concerns an air conditioning installation with centrifugal sprayers (1). Said installation is essentially comprised of centrifugal sprayers (1) each provided with a deflector (2) and connected to a loop circuit (3) incorporating a buffer reservoir (4) which is supplied with liquid, a centrifugal purifier (5), a filter (6), a pump (7), individual flow regulating devices (8) and a collective flow regulating electro-valve (9), controlled by a regulation device (10) which is servo-controlled by a temperature sensor (11) and by a hygrometry sensor (12). The driving motors (13) for the sprayers (1) are power supplied through an adjustable frequency inverter (14).
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: December 27, 1988
    Assignee: Societe Airbi SA
    Inventors: Daniel Bidon, Joelle Garet
  • Patent number: 4762538
    Abstract: A spray absorber in which a rotary sprayer is centrally disposed adjacent to the top is provided with a cover cap which is adapted to be raised and is laterally pivotally movable and adapted to close the shaft opening for the rotary sprayer when the latter must be replaced without an interruption of the gas flow.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: August 9, 1988
    Assignee: Metallgesellschaft AG
    Inventors: Wilhelm Michler, Hans W. Both, Rolf Keppler
  • Patent number: 4704204
    Abstract: In order to inject oxygen into a liquid, for example, sewage, the installation is provided with an aerating system (2) that is arranged in an aerating basin (1).In order to improve the oxygen injection rate per kilowatt of driving force the aerating system (2) that is connected with a pump (3) in the manner of a water jet pump, the flow cross-section of which, in its air intake area, can be varied so as to change the oxygen injection rate. To this end, the diffusor stage (8) of the aeration system (2) extends along a conical surface. The hollow-configured conical diffusor inner portion (13) is arranged, together with a surface aeration impellor (16), on a common drive shaft (14), and can be moved along its longitudinal axis (15).
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: November 3, 1987
    Inventor: Joseph R. Kaelin
  • Patent number: 4693854
    Abstract: A styling mousse generator adapted to foam a liquid and deliver foamed styling mousse for use in hair treatment and the like having a liquid reservoir in its lower portion, means for filling the reservoir, a fan and motor above the reservoir, a fan inlet and a fan outlet, a foam delivery tube leading from the reservoir to the fan inlet, a liquid inlet duct (coming from the reservoir) and an air inlet duct (coming from a location higher than the reservoir liquid level) at an acute angle to each other (to create a Bernoulli type effect) and leading to the foam delivery tube, and a passageway leading from the fan outlet to a foam outlet. The passageway may be serpentine or include frictional, agitating means to warm the foam.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: September 15, 1987
    Assignee: Conair Corporation
    Inventor: Yuk M. Yau
  • Patent number: 4601645
    Abstract: A two stage mixing gear pump for dispersing a gas into a liquid wherein a metered quantity of liquid from the first stage of the pump is supplied to gas filled intertooth spaces of the second stage pump. The gas is introduced into the intertooth spaces of the second stage of the pump through a gas inlet which is adjacent the low pressure side of the gear teeth meshing zone of the second stage of the pump and the liquid enters the gas containing intertooth spaces downstream of the gas inlet.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: July 22, 1986
    Assignee: Nordson Corporation
    Inventor: James W. Schmitkons
  • Patent number: 4485795
    Abstract: A fuel atomizer adapted to be mounted between the carburetor and intake manifold of an internal combustion engine. The atomizer comprises a housing having mounted therein an impeller with blades having their leading edges disposed at a 45.degree. angle with respect to the horizontal plane of rotation of the impeller. Rotation of the impeller will effect a break up of the larger fuel droplets and to then mix with the incoming air. The impeller is provided with a specially designed spindle journalled for rotation in specially designed spindle bearings to thus insure a smooth operation of the impeller. The housing is also provided with a network of interconnected bars at the outlet end of the housing to effect a still further atomization of the air/fuel mixture as it leaves the housing responsive to the suction created in the intake manifold of the internal combustion engine.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: December 4, 1984
    Inventor: Linda L. Lockard
  • Patent number: 4399794
    Abstract: This carburetion system for automobiles serves to increase gasoline mileage greatly, and it consists primarily of a regulator for metering drops of fuel onto a motor-driven fan in a fuel and air mixing chamber. It further includes a heat expansion cylinder connected to the mixing chamber, so as to vaporize the mixture fully and completely by exhaust gases of the engine, prior to the fuel and air gas entering the cylinders of the automobile engine.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: August 23, 1983
    Inventor: David C. Gagnon
  • Patent number: 4310253
    Abstract: A stirring method comprising placing particles of a magnetic material or particles of a magnetic material coated or covered with a non-magnetic material in an interface between two phases or in a specific layer, and subjecting said particles to influences of a rotating magnetic field to cause rotation and revolution in the particles. According to this method, transfer of substances and/or heat in the interface between the two phases or in the specific layer is promoted. Also disclosed is a stir method comprising placing particles of a magnetic material or particles of a magnetic material coated or covered with a non-magnetic material in a fluid under influences of a rotating magnetic field, to cause rotation and revolution in the particles in the fluid. According to this method, transfer of substances and/or heat in the interface between a phase of the particles and a phase of the fluid is promoted.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: January 12, 1982
    Assignee: Toyo Engineering Corporation
    Inventors: Eizo Sada, Shigeo Katoh, Ryozo Toei, Hideyuki Michiki
  • Patent number: 4289506
    Abstract: Methods and apparatus for scrubbing a gas with a scrubbing fluid are disclosed. The apparatus disclosed includes a rotatable scrubbing fluid impeller rotatable about an axis of rotation and a scrubbing fluid supply conduit to supply scrubbing fluid to an inner portion of the impeller so that upon rapid rotation of the impeller about the axis the scrubbing fluid is impelled outwardly and forms a rapidly rotating scrubbing fluid curtain of discrete jets at the outer periphery thereof. In one embodiment, the rotatable impeller includes first and second axially displaced sections, the first section for impelling the scrubbing fluid outwardly and the second section for impelling the gas outwardly to and through diffuser vanes, and then to vanes for altering the direction of flow of the gas as it passes from the diffuser exit plenum so that it is forced through the rapidly rotating scrubbing fluid curtain in a direction opposite to that of the rotation of the scrubbing fluid.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: September 15, 1981
    Inventor: Arthur F. Stone
  • Patent number: 4193745
    Abstract: A gear pump for dispersing a gas into a liquid is provided with mixing means for improving the uniformity of the dispersion. In preferred form, the mixing means comprises a series of fixed, shallow, blind cavities that open to the pumping cavity between the liquid inlet and the outlet, and which are positioned to be "wiped" by the gear teeth as the gears rotate. The alternate connection and disconnection of the intertooth spaces to these cavities as the gears rotate establishes motion or turbulence of the gas/liquid mixture within the intertooth spaces, and surprisingly improves uniformity of the dispersion.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: March 18, 1980
    Assignee: Nordson Corporation
    Inventors: William M. Hamilton, Charles H. Scholl, Jeffrey J. Kruke, Larry D. Akers
  • Patent number: 4187264
    Abstract: A carburetor for an internal combustion engine comprising a fuel chamber arranged in the mixing compartment of a suction tube and rotatable about the lower end of a fuel-infeed conduit secured in the mixing compartment by means of an impeller wheel rotatable in the sucked-up air current. The fuel chamber possesses at least one lateral nozzle for the delivery of fuel into the mixing compartment. A ring-shaped gap is provided in the fuel chamber between its inner wall and the stationary fuel-infeed conduit. By means of this gap a lower fuel compartment, into which opens the fuel-infeed conduit, communicates with an upper fuel compartment. The upper fuel compartment has a ring-shaped air inlet opening which is coaxially arranged with respect to the fuel-infeed conduit.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: February 5, 1980
    Inventor: Rudolf Diener
  • Patent number: 4156712
    Abstract: A method for removing sulfur dioxide from flue gases by simultaneous absorption and oxidation in an aqueous absorbent. An enclosed body of an aqueous liquid absorbent for the sulfur dioxide is provided and the flue gas is sparged into an upper portion of the liquid absorbent to form a first zone thereof. An oxygen-containing gas is introduced into a lower portion of the liquid absorbent to form a second zone of the liquid absorbent that is below the first zone of the liquid absorbent and which has an apparent density that is higher than that of the first zone. The oxygen-containing absorbent from the second zone is circulated to the first zone near the point of the flue gas introduction and an alkaline material reactive with the sulfur dioxide in the liquid absorbent is introduced into the body of liquid absorbent thereby fixing the sulfur dioxide in the liquid absorbent in the form of a sulfate. The sulfate is subsequently removed from the body of aqueous liquid absorbent.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: May 29, 1979
    Assignee: Chiyada Chemical Engineering & Construction Co., Ltd.
    Inventors: Toshio Kanai, Hiroshi Yanagioka, Hideo Idemura, Hiroshi Sugiyama, Yoshio Kogawa, Michihiro Yoshida, Mitsugu Kitamura, Teruo Sugiya
  • Patent number: 4153028
    Abstract: A cylindrical rotor is rotatably mounted within the bore of a housing. A plurality of passages arranged in concentric annular rows extend through the rotor. Each passage is generally rectangular in cross section and is inclined with respect to the axis of the rotor. The rotor is forced to rotate in response to a gaseous stream moving through the bore and the passages. Liquid particles entrained within the gaseous stream are atomized in response to the movement of the rotor.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: May 8, 1979
    Inventors: Emerson L. Kumm, Maurice J. Moriarty
  • Patent number: 4117044
    Abstract: An aerator in which air is forced into the liquid by means of a helical rib surrounding a cylindrical member which is rotated in such a direction that air trapped beneath the helical rib is forced downwardly into the liquid. A diffuser at the bottom of the helical rib is effective to break up the trapped air bubbles into finer bubbles which are dispersed through and retained by the liquid. The cylindrical member on which the helical rib is disposed may be rotated by an electric motor which may be disposed either above the water line or beneath the water line at the bottom of the helical rib. Where necessary, air may be pumped into the space above the water so as to facilitate the introduction of air about the helical rib. Where the aerator is to be used with a container of limited size, the aerator may be either mounted on the cover of the container or may have associated therewith a closure member adapted to fit into the neck of such a container.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: September 26, 1978
    Inventors: Stanley J. Durda, Walter D. Gustafson
  • Patent number: 4116187
    Abstract: Apparatus for improving the mixing or blending of the charge of fuel and air to an internal combustion engine and for increasing the quantity of the fuel-air charge to the engine. A rotor member, having a sealing blade and at least one blade member which is angled with respect to a radial reference through the axis of the rotor, is rotated in a housing to draw a portion of the fuel-air charge from a carburetor, to increase the quantity of that portion, to create turbulence in the flow of the fuel-air mixture and to more thoroughly blend the fuel with the air before the mixture is delivered to the cylinder intake of an internal combustion engine.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 26, 1978
    Inventor: Randall J. Moore
  • Patent number: 4067206
    Abstract: A system for evaporating condensed moisture in an air conditioner includes an axial flow fan having an annular slinger ring which rotates through a sump in which moisture condensed at the evaporator collects, the slinger ring entraining moisture during rotation therethrough and centrifugally discharging the moisture upwardly along the side wall of the air conditioner housing, at increasing heights as the moisture level in the sump increases, the moisture flowing downwardly along the wall and being collected by a reservoir to which a conduit is connected for conveying and discharging the moisture at a lower elevation interior of the fan air stream so as to direct the moisture onto the condenser for evaporation thereat.
    Type: Grant
    Filed: September 15, 1976
    Date of Patent: January 10, 1978
    Assignee: Admiral Corporation
    Inventor: Hayden N. Smith
  • Patent number: 3976453
    Abstract: A vacuum pump of the liquid vortex type including a closed tank and a helical rotor for operation below the level of liquid therein is provided with a readily demountable rotor unit mounted exteriorly of the tank and having its enclosing shroud opening into the tank. Servicing, including that for removal of scale is greatly facilitated. In addition the pump is provided with a system of ultrasonic vibration elements whereby the accumulation of scale is inhibited or greatly reduced.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: August 24, 1976
    Inventor: Kenard D. Brown
  • Patent number: 3946717
    Abstract: Upon the premises that carberation does not provide for substantial vaporization of the fuel to be combusted, this invention discloses a fuel vaporizer inserted in the air and fuel passage with liquid droplet feedback via a sieve providing a venturi effect in combination with a flow driven spinning bowl providing a centrifugal liquid return to the sieve for cycling of the liquid fuel until vaporization.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: March 30, 1976
    Inventor: Will Clarke England
  • Patent number: 3932567
    Abstract: A power driven gas aerating carburetor for supplying the combustion chambers of an internal combustion engine with finely atomized air-fuel mixtures in controlled proportions under pressure for more thorough combustion of the air-fuel mixtures.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: January 13, 1976
    Inventor: Paul E. Skidmore