Combining Of Three Or More Diverse Fluids Patents (Class 137/889)
  • Patent number: 10384406
    Abstract: In a device for delivering a medium, especially tire sealant, which is to be delivered by means of a compressor from a container to a tire, wherein the compressor can be connected by a pipeline to the tire and a connection to the container emerges into this pipeline, the pipeline has a constriction upstream from the tire.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 20, 2019
    Assignee: Illinois Tool Works Inc.
    Inventor: Martin P. Spindler
  • Patent number: 10328398
    Abstract: A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentration of the chemical concentrate. The dispenser has a high degree of accuracy of the amount of dilution of the chemical concentrate as well as positive positioning of the high and low flow rate.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 25, 2019
    Assignee: Diversey, Inc.
    Inventors: Curtis H. Hubmann, Robert C. Halstead, Matthew E. Young, Elizabeth A. Slater, Richard I. Simpson, Reuben Wu, John A. Boticki
  • Patent number: 10029266
    Abstract: A foam spray gun is illustrated in which a third hose is attached to the gun for the application of either a liquid or a gas.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 24, 2018
    Assignee: ICP Adhesives and Sealants, Inc.
    Inventors: Stefan Gantenbein, Thomas Fishback, Sara Jonas, Douglas Caffoe, John McQuaid, Timothy Shoemaker, Kerry Armes, Christopher Miedza, Scott E. Mizer, Brian Milliff, Michael J. Maczuzak
  • Patent number: 9876218
    Abstract: A device that intermittently coats a moving surface with a paste containing electrochemically active particles including a nozzle having a slot-shaped delivery opening, a paste reservoir from which paste being supplied to the delivery opening via a transport channel, a rotary valve having a rotatably mounted control axle that enables the paste supply to the delivery opening in a first switching position and, in a second switching position, blocks the transport channel and disconnects a section of the transport channel extending as far as the delivery opening from the paste supply, and a reduced pressure source in communicating connection with the rotatably mounted control axle via a reduced pressure channel, wherein the rotatably mounted control axle comprises a passage via which the paste reservoir is in communicating connection with the delivery opening in the first switching position and via which the delivery opening is in communicating connection with the reduced pressure source in the second switching p
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: January 23, 2018
    Assignee: VW-VM Forschungsgesellschaft mbH & Co. KG
    Inventors: Andreas Huth, Robert Sekler
  • Patent number: 9829361
    Abstract: A flow metering method for an annular gas and liquid flow comprises the following steps of: first, enabling a gas and liquid mixed fluid to flow through a vertically arranged circular pipe so as to form the annular gas and liquid flow; and then measuring total flow or liquid average velocity or gas average velocity of the gas and liquid mixed fluid; measuring physical quantities, such as temperature, pressure, gas fraction and the like, of the gas and liquid mixed fluid; and finally, accurately figuring out liquid volume flow and gas volume flow according to analysis of a gas and liquid slip factor.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: November 28, 2017
    Assignee: HAIMO TECHNOLOGIES GROUP CORP.
    Inventor: Jige Chen
  • Patent number: 9668452
    Abstract: A process for producing milk foam includes pumping milk through a milk line with a milk pump having an adjustable speed for adjusting the capacity of the milk pump. Milk from the milk line and air are mixed inside a first mixing chamber to produce a milk foam. Properties of the milk foam, including a consistency of the milk foam, are a function of the speed of the milk pump. A device for producing the milk foam includes a milk container; an outlet; a milk line connected between the milk container and the outlet; a first mixing chamber installed in the milk line to mix milk and air to produce milk foam; and a milk pump having an adjustable speed coupled into the milk line.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 6, 2017
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Thomas Diester
  • Patent number: 9616399
    Abstract: A method to feed a chemical into a liquid flow using a feed device including a nozzle casing having an isolated mixing space including: feeding the chemical to the isolated mixing space in the feed device; feeding a mixing liquid to the isolated mixing space; mixing the chemical and the mixing liquid in the isolated mixing space to form a mixture of chemical and mixing liquid, and feeding the mixture of chemical and mixing liquid to the liquid flow.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 11, 2017
    Assignee: Wetend Technologies Oy
    Inventor: Jouni Matula
  • Patent number: 9468892
    Abstract: A chemical dispensing system including a rack based system that can hold a plurality of chemical dispensing containers. The chemical dispensing containers can make use of concentrates or hyper concentrates of chemicals allowing smaller capacity containers. The rack based system can include a modular rack that is configurable to hold a desired number of containers. Using the modular rack, the containers can be easily ganged together to increase capacity or build in redundancy for one or more of the chemicals through the configuration of a rack manifold constructed of individual manifold segments. Within the manifold, various flow paths can be linked or terminated between adjacent manifold segments and chemical containers.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: October 18, 2016
    Assignee: HYDRA-FLEX, INC.
    Inventors: Jaime L. Harris, Karl J. Fritze
  • Patent number: 9010379
    Abstract: A method of entraining a second fluid in a first fluid is provided. The method comprises supplying a first fluid to a processing passage (4) having an inlet (6) and an outlet (8), and supplying an entrainment fluid to a nozzle (10) which opens into the processing passage (4) intermediate the passage inlet (6) and the passage outlet (8). A second fluid which will undergo a change of phase and/or state when added to the first fluid is also provided, and supplied to a first port (22) opening into the processing passage (4) adjacent the nozzle (10). The entrainment fluid is injected from the nozzle (10) into the processing passage (4) so as to form a dispersed phase of the first and second fluids in a continuous vapor phase, and the vapor phase is condensed downstream of the nozzle (10). A device suitable for carrying out such a method is also provided.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 21, 2015
    Assignee: Pursuit Marine Drive Limited
    Inventors: Michelle Gothard, Nicholas Cousins, Robert Scott
  • Patent number: 8807158
    Abstract: An improved venturi-style eductor apparatus for dispensing chemicals into a motive fluid stream where an eductor body FIG. 3 is manufactured by molding a chemically inert polymer material FIG. 2 around and inside a metallic insert FIG. 1. Opposing ends of the metallic insert may be threaded, flanged, or machined for push-in connection to facilitate mating with a motive fluid source and a dispensing device. By manufacturing an eductor assembly using a single-piece metal insert over-molded with an inert polymer provides improved chemical resistance for aggressive applications and allows improvements in venturi geometry not achievable using traditional machined components. This apparatus reduces manufacturing cost over current state-of-the-art eductor assemblies by using a single molding step to create flow-path geometry in the eductor body while retaining mechanical strength with the metallic insert FIG. 1.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: August 19, 2014
    Assignee: Hydra-Flex, Inc.
    Inventors: Jaime Leonard Harris, Gary Allen Brown
  • Patent number: 8631824
    Abstract: An apparatus, method and system provides for dispensing liquid products to two or more appliances. Liquid diluent is communicated through an anti-siphon valve (64) connected in fluid communication to an aspirator (14). A mixed solution from the aspirator (14) is communicated to a distribution valve (36) for directing flow of a liquid product to two or more appliances using a single aspirating dispenser (12).
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: January 21, 2014
    Assignee: Ecolab USA Inc.
    Inventors: John Thomas Pelkey, Richard Jondall Mehus, Ryan Jacob Urban, Nicholas Donald Parent, Scott Russell Limback
  • Patent number: 8322996
    Abstract: Aspirators for inflating devices such as (but not limited to) aircraft evacuation slides and rafts are detailed. Housings of the aspirators may be made of wound filaments of composite materials, reducing their weight as compared to conventional metal structures. Such actions as reconfiguring and repositioning jet nozzles within the housings also contribute to enhancing performance of the aspirators.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 4, 2012
    Assignee: Air Cruisers Company
    Inventors: Daniel A. McNeil, John O'Donnell, Frank Brown
  • Patent number: 8061387
    Abstract: An adjustable Venturi is disclosed, and having a plurality of inlet ports providing substances to be mixed with a flow of fluid through the Venturi. In one embodiment, the Venturi is constructed having an inlet portion, an outlet portion, with an annular mixing chamber coupled to inlet ports so that substances provided through inlet ports are mixed in the mixing chamber, and such mixture introduced into the flow. A gasket sealably disposed between inlet portion and outlet portion is selectable in thickness, for adjusting width of a Venturi interface between the inlet portion and outlet portion. In another embodiment, the inlet portion and outlet portion are fitted in an elongated opening, and are replaceable to change operational characteristics of the Venturi. A replaceable disk having a central opening and substance-providing passageways is disposed between the inlet portion and outlet portion, and may be changed to change characteristics of the Venturi.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 22, 2011
    Inventor: Ronald L. Barnes
  • Patent number: 7487795
    Abstract: An improved chemical dispenser includes a plurality of eductors for drawing chemical into a diluent to produce an effluent, each eductor of the plurality selectively discharging via a baffle tube into a single common discharge tube. The effluent flow parameters are insufficient to cause effluent from a selected eductor to flow into a chemical source coupled to a non-selected eductor, and are insufficient to draw chemical from a non-selected eductor into the effluent from a selected eductor.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: February 10, 2009
    Assignee: Delaware Capital Formation
    Inventor: William F. Sand
  • Patent number: 7416326
    Abstract: There is provided an apparatus for manufacturing sterilizing water, in which the sterilization power of a chlorine-based solution consisting of sodium hypochlorite or chlorine dioxide or a mixture thereof is fully achieved while the generation of chlorine gas is restrained, and desired sterilizing water is manufactured by properly feeding and mixing three liquids of water, an acid solution, and a chlorine-based solution at a fully controlled concentration. In the apparatus for manufacturing sterilizing water of some aspect of the present invention, after both acid solution and chlorine-based solution have been diluted with raw water in a feeder, the dilute solutions can be mixed with each other by a mixer.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: August 26, 2008
    Assignee: Family-Life Co., Ltd.
    Inventors: Yu Sakata, Toshio Okazaki, Toshizumi Ikeda
  • Patent number: 7111975
    Abstract: A fluid mover (1) includes a passage (3) of substantially constant cross section into which supersonic steam is injected through an annular nozzle (16) as a transport fluid to contact a working fluid, e.g. a liquid, to be treated, the passage further including a mixing chamber (3A) downstream of the steam injection where the mixture is accelerated upon the creation of a low pressure zone occasioned by the condensation of the steam, a dispersed droplet regime and a shock wave being generated downstream of the nozzle (16). A pseudo-convergent/divergent section is created and provides a flexible boundary in the absence of physical constraints to yield an improved performance by combining shear dispersion and/or disassociation with the effects of the shock wave. The fluid mover (1) may be used in a wide variety of applications for pumping, heating, mixing, disintegrating, classifying and separating among others.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: September 26, 2006
    Assignee: Pursuit Dynamics plc
    Inventors: Marcus B. M. Fenton, Philip A. Kitchen, Michael T. Todman, Alexander G. Wallis
  • Patent number: 7096877
    Abstract: With a method of establishing an enveloped flow in a channel, in the channel an envelopment area (3) with a channel section (6, 7) is configured to which a stub with an outlet is connected, where the stub, which can be configured as a polyhedron, is arranged substantially at right-angles to the envelopment area and with the plane of the outlet substantially at right-angles to the channel section. An inlet channel (9, 11) and an outlet channel (8, 10) are connected to the envelopment area. By providing a narrowing-down in the cross-section of the channel in immediate extension of the envelopment area (3), a hydrodynamic focussing of the sample fluid is achieved when a fluid, such as a sample fluid, is introduced into the stub, and a carrier fluid is introduced into the inlet channel. The advantage of the invention is that since it is necessary only to have two fluid inlets, a relatively simple structure can be established, which can be built up in a monolithic manner, e.g. by injection molding.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: August 29, 2006
    Assignee: Inverness Medical Switzerland GmbH
    Inventors: Ulrik Larsen, Anders Wolff, Pieter Telleman
  • Patent number: 6929033
    Abstract: A liquid dilution device is provided to prevent choking at a jet for adjusting the flow amount of a special liquid. In the liquid dilution device in which the special liquid from a liquid supply passage 33 of a liquid intake device 29, is introduced to a diluent passage 12 formed in a main body 10 through a jet 22, an air intake opening 37 and a plug 38 to open and close the air intake opening 37 are provided at the liquid intake device 29 to connect the liquid supply passage 33 and atmospheric air. At the state that air from the air intake opening can be introduced to the diluent passage 12 through the jet 22 with the plug 38 opened, high velocity air passes through the jet 22 due to negative pressure generated at the diluent passage 12, by making water pass through the diluent passage 12. Due to the high velocity air, the special liquid stuck to the jet 22 is removed and the jet 22 is cleaned.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: August 16, 2005
    Assignee: Mikuni Corporation
    Inventor: Shinichi Sekiguchi
  • Patent number: 6655401
    Abstract: A dispenser selectively mixes one or more chemical fluids into a motive fluid such as water by using diverting motive fluid to one or more channels formed in an eductor body, at least one of the channels being an eductor. When the motive fluid passes through the eductor, a selected chemical fluid is eductively drawn into the venturi of the eductor, producing a mixed fluid having a desired total flow rate and dilution ratio. Additional dilution ratios, flow rates, and chemical fluids are selectable by diverting motive fluid to another channel or combinations of channels. Carry-over of chemical fluid between dispensing is avoided by diverting the motive fluid rather than by diverting the concentrated chemical fluid.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 2, 2003
    Assignee: Hydro Systems Company
    Inventors: William F. Sand, Mark D. Dalhart
  • Publication number: 20030127144
    Abstract: An integrated pneumatic manifold for installations that require electrical and other components to be separated from a harmful or dangerous environment, in which pneumatic (and/or hydraulic) devices operate, the manifold comprising a block that has drilled into it a large number of passages that are directed in various directions and located at various levels, some passages crossing partially and some wholly with others and cavities machined in various positions. The block has mounting points for components on its surfaces and passive and active pneumatic components are integrated into the cavities and passages of the block. The block serves as a separation between the safe and harmful environments and as a substitution for many passive and active pneumatic components that would normally be individually connected.
    Type: Application
    Filed: November 12, 2002
    Publication date: July 10, 2003
    Inventor: Otto Herman Seyfarth
  • Patent number: 6571824
    Abstract: A chemical injection system for use in a vehicle wash system having a single spray arch that distributes a plurality of various chemicals onto a vehicle during the wash process. The chemical injection system includes a high pressure supply manifold formed from stainless steel that receives a high pressure supply of inlet water. The supply manifold receives a plurality of individual chemical injectors that are each connected to a supply of one or more chemicals. Each of the chemical injectors is formed from a thermoplastic material and is separately insertable into the high pressure supply manifold. The flow of water through the chemical injectors creates a Venturi effect that pulls the chemical agent into the water supply for distribution downstream through the spray arch.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: June 3, 2003
    Assignee: Delaware Capital Formation, Inc.
    Inventors: Allen S. Jones, Kimmo Ukkola
  • Publication number: 20030056842
    Abstract: A dispenser selectively mixes one or more chemical fluids into a motive fluid such as water by using diverting motive fluid to one or more channels formed in an eductor body, at least one of the channels being an eductor. When the motive fluid passes through the eductor, a selected chemical fluid is eductively drawn into the venturi of the eductor, producing a mixed fluid having a desired total flow rate and dilution ratio. Additional dilution ratios, flow rates, and chemical fluids are selectable by diverting motive fluid to another channel or combinations of channels. Carry-over of chemical fluid between dispensing is avoided by diverting the motive fluid rather than by diverting the concentrated chemical fluid.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: William F. Sand, Mark D. Dalhart
  • Publication number: 20030056841
    Abstract: A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Applicant: Hydro Systems Company
    Inventors: Mark D. Dalhart, William F. Sand
  • Patent number: 6523991
    Abstract: A method and apparatus for increasing the pressure or rise of the enthalpy of a fluid flowing at supersonic, includes mixing vapor with liquid, and accelerating this mixture to supersonic speed, whereupon a condensation shock is triggered and wherein additional liquid is introduced into the mixture, flowing at supersonic speed, before triggering of the condensation shock.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: February 25, 2003
    Inventor: Jaber Maklad
  • Publication number: 20020117222
    Abstract: There is provided a gas supplying apparatus capable of rapidly switching the gas to be supplied to an instrument and preventing reactive gases from mixing each other. The gas supplying apparatus comprises: a 4-way block valve which is a main switching valve 10, having two inflow ports 11, 12 and two outflow ports 13, 14; an instrument connection passage 1 connected to an instrument, such as an analyzer, to which the outflow ports 13 is connected; an exhaust passage 4 to which the two outflow ports 14 is connected; common gas supplying passages 2, 3 respectively connected to the two inflow ports 11, 12 of the 4-way block valve; a switching valve(s) 20 made of a 2-connected 3-way block valve(s) or a 4-way block valve(s) connected to the at least one of the two common gas supplying passages 2, 3; and two gas supplying passages 21, 22 switchably connected the 2-connected 3-way block valve(s) or the 4-way block valve(s).
    Type: Application
    Filed: April 24, 2002
    Publication date: August 29, 2002
    Applicant: NIPPON SANSO CORPORATION
    Inventors: Tetsuya Satou, Tsutomu Kikuchi, Akira Nishina
  • Patent number: 6378789
    Abstract: A combination spray apparatus which allows for the selection of several different flowable materials to be sprayed from a single unit and at the site of the unit itself. In the preferred manner, the spray apparatus includes a trigger nozzle as well as the selection of two different materials to be sprayed through a second barrel portion. An eductor it utilized to draw selected materials into a spray stream. The combination spray apparatus is operable with water pressures which are customary to most cities and industries.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 30, 2002
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: Charles E. Seaman, Jr., Jeffrey Y. Chen, John A. Boticki, Carey W. Zimmerman
  • Patent number: 6293294
    Abstract: A fluid mixing device has an inlet passageway for connection to a primary fluid supply, an outlet passageway; and at least two separate venturi passageways each connected between the inlet and outlet passageways. Each venturi passageway has a throat portion, a first venturi inlet connected to the throat portion of the first venturi passageway and a second venturi inlet connected to the throat portion of the second venturi passageway. The first and second venturi inlets are connected to supplies of two different secondary fluids for mixing into the primary fluid, a first one of the secondary fluids being of lower viscosity than the second. The outlet passageway is spaced a predetermined distance downstream of the venturi inlets to prevent substantial backflow of the first secondary fluid mixture into the second venturi passageway prior to mixing together of the two streams in the outlet passageway.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: September 25, 2001
    Assignee: Hydrosurge, Inc.
    Inventors: Robert D. Loeb, David M. Giuntoli, Hugh O. Williams
  • Patent number: 6196269
    Abstract: A powder-conveying injector to move coating powder and wherein the jet catching duct(8) of the conveying jet nozzle (4) is made of glass.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: March 6, 2001
    Assignee: ITW Gema AG
    Inventors: Hans Peter Michael, Gerald Haas
  • Patent number: 6183800
    Abstract: According to the method for preparing frothed milk or café crème, milk concentrate or coffee concentrate is mixed with water, using a venturi chamber. The venturi chamber comprises a water inlet, a concentrate inlet and an outlet. Further, a whirl chamber, located downstream of the venturi chamber, is used, which is in fluid communication with the outlet. The water is supplied under pressure via the water inlet to the venturi chamber, so that a reduced pressure is created in the venturi chamber. The concentrate inlet is brought into fluid communication with a stock of milk or coffee concentrate, so that, as a result of the reduced pressure in the venturi chamber, via the concentrate inlet, milk or coffee concentrate is sucked into the venturi chamber. The milk or coffee concentrate and the water then flow together via the outlet to the whirl chamber, and the milk or coffee concentrate and the water are beaten in the whirl chamber to form frothed milk or café crème.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: February 6, 2001
    Assignee: Sara Lee/DE N.V.
    Inventors: Adrianus Petrus Matthijs van Straten, Jan Anne Muis, Willem Nanko Mels, E. H. Rusche, A. J. Oude Wahsink
  • Patent number: 5999087
    Abstract: Apparatus is described for controlling delivery of dangerous material, such as LPG, from a tanker 12 to a tank 14, through a pipe 16. A valve 18 is controlled by an arrangement 22. An operator 28 carries a radio transmitter 24 and must periodically transmit an appropriate signal to the control 22, otherwise the control 22 will time out and close the valve, also sounding an alarm. In accordance with the invention, the transmitter 24 is also provided with a timer, having a shorter count down time, and also re-set when the signal is sent to the control 22. The timer in the transmitter 24 alerts the operator 28 that a signal should be sent, giving the operator an opportunity to send a signal before the control 22 closes the valve 18. However, if the operator does not send a signal, or is incapable of doing so, the timer at 22 will assume that an emergency situation exists, and cease further delivery.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: December 7, 1999
    Inventor: Bruce Stanley Gunton
  • Patent number: 5927338
    Abstract: Disclosed is an improved mixing eductor (10) of the type wherein the primary liquid (17), e.g., water, is in a main stream (201) flowing in a downstream direction. A venturi tube (51) is in the eductor (10) and has an annular sharp edge (131) in the main stream (201), thereby dividing such stream (201) into a primary stream (179) and a secondary stream (181) around the primary stream (179). The eductor (10) has an air gap (103) and a flow guide (47) downstream thereof. In a specific embodiment, the flow guide (47) is annular around the venturi tube (51) and the tube (51) and the guide (47) are in spaced telescoped relationship. Several embodiments of the eductor (10) and a new method for mixing liquids are disclosed.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 27, 1999
    Assignee: S.C. Johnson Commercial Markets, Inc.
    Inventors: John A. Boticki, James L. Bournoville, James H. Lohr, Richard E. Rakoczy, Charles E. Seaman, Jr.
  • Patent number: 5839474
    Abstract: An eductor apparatus 20 includes a fluid inlet port 30 which directs fluid through an air gap 32 to an eductor 42. A rib 38 deflects any fluid which bounces off of the eductor 42 so that the fluid is retarded from exiting through an air gap port 34. The eductor 42 is of a one-piece construction having a specially designed inlet port 44 and exterior surface 116 thereabout in order to ensure attached flow and thereby reduce the amount of fluid which bounces off the exterior surface 116 and which is directed back upstream toward the air gap port 34.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 24, 1998
    Assignee: SC Johnson Commercial Markets, Inc.
    Inventor: Michael J. Greaney
  • Patent number: 5799831
    Abstract: A foaming system 10 includes a dual aspirator 13. The dual aspirator 13 has first and second aspirators 80 and 81 to pick up a first and second chemical concentrate. The diluent first chemical mixture is drawn in through the first aspirator 80 and goes through a first diffuser 46 where the first chemical/diluent mixture is further mixed. Similarly, diluent/chemical mixture is drawn by the second aspirator 81 and flows through a second diffuser 47 where it also is mixed. The two diluent/chemical mixtures then combine after exiting the diffusers and the compatible chemicals are then mixed by the flow of the diluent/chemical mixtures. Flushing lines 68 and 71 provide for cleaning of the dual aspirator 13. Further, the diffusers have a ratio of their diameter to length to aid in the prevention of contamination along with the use of two check valves 48 and 49.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: September 1, 1998
    Assignee: Ecolab Inc.
    Inventors: John R. Spriggs, Richard Ruhr, Roger Keppers
  • Patent number: 5678593
    Abstract: A detergent mixing apparatus for use with a pressurized water source. The apparatus includes at least one mixing tank and a pair of liquid chemical supply containers each accommodating a liquid chemical composition. A water supply conduit connects a pressurized water source with the mixing tank. A pair of venturi chambers are disposed within the water supply conduit and are arranged for parallel flow. Each of the venturi chambers includes a suction port in fluid communication, respectively, with one of the liquid chemical supply containers so as to drawing the liquid chemical composition from each chemical supply container as pressurized water passes through the venturi chambers thus entraining the liquid chemical compositions in the water. A float-actuated control valve is operably connected to the water supply conduit for terminating the flow of water and entrained liquid chemical compositions through the water supply conduit when the liquid level in the mixing tank reaches a predetermined height.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: October 21, 1997
    Inventor: Barton Lockhart
  • Patent number: 5509349
    Abstract: A fully automated cappuccino, latte, and espresso brewing machine which includes a refrigerated milk supply from which milk is drawn by a steam driven venturi apparatus. The venturi subcombination includes independently electrically operated valving for the driving steam, for drawing milk from its supply, and for drawing air, as desired, for foaming the milk in a vortex mixer coupled to the output of the venturi. The valving may be sequential so that with each cycle of use of the apparatus, it is hygienically steam cleaned of all milk residue.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: April 23, 1996
    Assignee: Caffe Acorto, Inc.
    Inventors: Kyle T. Anderson, Duke W. Goss, Michael G. Lee
  • Patent number: 5462079
    Abstract: A hot and cold water mixing valve for use with faucets, shower/tub controls and other plumbing fittings includes a sleeve having a hot water inlet and a cold water inlet spaced therefrom and an outlet axially spaced from the inlets. There is a stem movable within the sleeve to control water flow from the inlets to the outlet. There is a water passage between the exterior of the stem and the interior of the sleeve and there is an axially extending air passage within the stem having an outer end in communication with air at ambient pressure. There are air outlets in the stem intermediate its ends which connect the air passage with the exterior of the stem. The stem exterior and the sleeve interior cooperate to provide an anti-siphon device to draw air from the air outlets into the water passage.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: October 31, 1995
    Assignee: Moen Incorporated
    Inventors: Todd C. Loschelder, Erwin F. Mikol
  • Patent number: 5439020
    Abstract: A fluid handling apparatus and method for combining dissolved solid and liquid phase detergent constituents with water from an external source in predetermined proportions is disclosed. The apparatus includes a dissolution tank for dissolving powdered detergent constituents deposited therein and a number of other supply containers each filled with a discrete liquid chemical. A manifold, connecting the dissolution tank and at least one liquid chemical supply container, is in fluid communication with a venturi chamber. When pressurized water from the external source is directed or jetted through the venturi chamber, detergent constituents in the dissolution tank and the chemical supply container are drawn into the venturi chamber in proper proportion for mixing with pressurized water and discharged into a holding tank for subsequent use.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: August 8, 1995
    Inventor: Barton Lockhart
  • Patent number: 5435157
    Abstract: The present invention is a chemical dispenser for use in servicing at least two laundry cleaning machines to dispense a plurality of chemical agents utilized in the process of cleaning soiled laundry, wherein at least two of the chemical agents are compatible. The chemical dispenser has a plurality of chemical dispensing systems designed to deliver a selected chemical agent from a source to a washing machine. A chemical dispensing system is in flow communication with each chemical source and in flow communication with each washing machine. Each chemical dispensing system has a pump and a delivery conduit. For selected chemical agent delivery, the pump is a venturi injector pump. The chemical dispensing systems utilized for dispensing compatible chemical agents have a common portion and are fluidly independent from chemical dispensing systems utilized for dispensing incompatible chemical agents.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: July 25, 1995
    Assignee: Sunburst Chemicals, Inc.
    Inventor: Timothy E. Laughlin
  • Patent number: 5338113
    Abstract: An improved device for acting upon fluids by means of a pressure jump is disclosed. The device consists of a nozzle which receives an active fluid. A passive fluid is provided to the nozzle such that it mixes with active fluid to form a two-phase mixture flowing with subsonic velocity. The passive fluid when mixed with the active fluid partially evaporates thereby increasing the stagnation pressure of the mixture and decreasing its stagnation temperature. An expansion chamber is joined with the nozzle where the two-phase mixture is accelerated. An outlet channel with constant cross-sectional area is connected to the expansion chamber. In the outlet channel, the mixture is accelerated to its supersonic velocity so as to create a pressure jump. The nozzle of the device comprises at least one working section and at least one control section. In the working section, the passive fluid is provided into the flow of the active fluid to create a two-phase mixture.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: August 16, 1994
    Assignee: Transsonic Uberschall-Anlagen GmbH
    Inventor: Vladimir Fissenko
  • Patent number: 5330105
    Abstract: An air aspirating nozzle for propelling a stream of foam or a slurry of solid particulates to a target surface includes a stream shaping member within the nozzle to form a rotating, columnar stream of liquid and air which maintains a high degree of coherence over a considerable throw distance. The nozzle assembly may include a flow control unit for the introduction of a foam concentrate or a fluid suspension of particulate solids into the nozzle.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: July 19, 1994
    Assignee: Valkyrie Scientific Proprietary, L.C.
    Inventor: Joseph B. Kaylor
  • Patent number: 5230368
    Abstract: A chemical intake system has an aperture plate with apertures of varying fluid flow resistance all connected to a first fluid source. A first tube is connected to one of the apertures in the aperture plate and to a suction tube. A second tube is connected to a second fluid source and to the suction tube. The amount of the first fluid flowing into the suction tube is regulated by attaching the first tube to various apertures in the plate. The amount of fluid flowing through the first tube also regulates the amount of the second fluid flowing through the second tube and into the suction tube.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: July 27, 1993
    Assignee: Shop Vac Corporation
    Inventor: Robert C. Berfield
  • Patent number: 5179975
    Abstract: Disclosed is a dynamic, non-recycling pumping system for combining at least one chemical agent with a liquid carrier to produce a mixture for spraying on a target. Included in the subject device is a pump having an adjustable pressurized output line and an adjustable vacuum containing primary suction input line. A carrier reservoir supplies the primary suction line with the carrier that is mixed with a variable amount of chemical agent added through a secondary suction line connected to the primary suction line.
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: January 19, 1993
    Inventor: Jim Stevenson
  • Patent number: 5105843
    Abstract: The present invention is directed to improved methods and apparatus for adding one or more fluids to another while substantially preventing the precipitation of one or more dissolved solids contained within a first fluid when being added to a second fluid containing at least one non-solvent component for the one or more dissolved solids.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: April 21, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James A. Condron, Alex C. Kuo
  • Patent number: 4913192
    Abstract: Gas flow control apparatus for controlling the flow of a process gas through a conduit system to a process site, for halting the flow of gas when the process is completed, and for then developing a partial vacuum in the conduit system sufficiently high to reduce the concentration of process gas and maintain it in a gaseous state. The partial vacuum is developed by carrier gas flowing through a venturi in communication with the conduit system supplying the process gas. The carrier gas also expels any remnants of the process gas from all points between the venturi and the process site. Further, the system can be used for vaporizing gases from liquids for use in an atmospheric process at the process site, the carrier gas flowing through the venturi and vaporizing a liquid in a chamber upstream of the venturi. The vaporized gases can then be regulated by a mass flow controller.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: April 3, 1990
    Assignee: Unit Instruments, Inc.
    Inventor: Randall J. Vavra
  • Patent number: 4886090
    Abstract: There is disclosed an assembly including a plurality of storage tanks for respective liquid chemicals to be metered, a plurality of feed chambers of a predetermined volume associated with respective storage tanks and disposed below such respective storage tanks, a conduit for process fluid for receiving predetermined volumes of such liquid chemicals as predetermined time cycles wherein the liquid chemicals are introduced in parallel feed to the process fluid in response to respective cycle timers.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: December 12, 1989
    Assignee: Ashland Oil, Inc.
    Inventor: George F. Hays
  • Patent number: 4881575
    Abstract: A personal shower fixture to be inserted between a shower pipe and shower head for introducing a selected one or a mixture of several fluids contained in the fixture into the water flow to the shower head. A venturi in the fixture draws the fluids into the flow through a conduit having branches in the fluid containers, each branch having a valve and the common branch into the venturi having a flow control valve. The fluid containers are supported in a cylindrical basket secured by a bayonet connector to the bottom of the fixture body, the basket having a fluid sight gauge and floor openings for easy removal of a container. There are no check valves in the conduit system so that the conduit and its branches may be easily cleaned by merely blocking the shower head output to backflush the conduit system.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: November 21, 1989
    Inventor: Richard J. Smith
  • Patent number: 4781467
    Abstract: The invention involves a mixing apparatus capable of mixing two or more chemicals using a motive liquid. An ejector draws in a first chemical which is directed to the input of an eductor. A second chemical is connected directly to the eductor. The motive liquid provides the motive force for both the ejector and the eductor. By reason of the feeding of the first chemical to the eductor from the separate ejector rather than directly into the eductor, the ratio of the first chemical to the second chemical fed into the eductor is more accurately controlled than if both chemicals were directly fed to the eductor. The chemicals are mixed in the eductor and are discharged as a foam preferably through a foam nozzle.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: November 1, 1988
    Assignee: CCA, Inc.
    Inventor: Leslie P. Williams
  • Patent number: 4779519
    Abstract: An emulsifier assembly for emulsifying air, steam, and milk in preparing cappuccino and like beverages, particularly for use with bar-size espresso coffee makers, being also adapted for heating up milk in preparing cafe au lait, comprises a body, a steam delivery channel opening into a suction chamber of the body, an air intake line and a milk intake line. Both lines are in communication with the suction chamber, and a flow rate adjuster is connected in the air intake line. A before shutter member is opertive in the air intake line, and a restrictor member is operative in an end section of the milk intake line. Both of these members are hand-actuatable.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: October 25, 1988
    Assignee: Nuova Faema S.p.A.
    Inventor: Mario Giuliano
  • Patent number: 4721126
    Abstract: A spiral fluid flow is available for conveying, drying or separating pulverulent substances particle substances, slurries or gases. To obtain a high speed stable spiral fluid flow, there is used a device provided with a slit formed between a main conical cylinder connected to a pipe line and a subcylinder connected to the main cylinder on the opposite side remote from the pipe line, and a pressurized fluid is supplied through this slit. The device is also provided with a pressurized fluid supply section.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: January 26, 1988
    Inventor: Kiyoshi Horii
  • Patent number: 4541780
    Abstract: There is disclosed herein a spa water jet aerator which proportionately controls the flow of water and air with a single control movement of a valve mechanism. The air and water apertures in the valve body are so shaped and located such that the air flow is controlled so as to be a function of volume of water flow. The function can be varied by varying the shapes and placements of the air and water passageways in the valve body relative to the locations and shapes of the air and water passageways in the aerator body. A key feature is that the air passageway can never be open to any extent when the water passageway is not open sufficiently to create a lower pressure in the mixing chamber than is present in the air supply line since this can lead to malfunction in ganged operation. A separate clamping mechanism allows adjustment of the water flow control valve to be independent of clamping movement of the clamping mechanism.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: September 17, 1985
    Assignee: Jebadabe International, Inc.
    Inventor: Gerald W. Moreland