Flow Control By Varying Position Of A Fluid Inlet Relative To Entrainment Chamber Patents (Class 137/891)
  • Patent number: 10336305
    Abstract: A Venturi device for producing vacuum from fluids in an engine system has a body defining a Venturi gap separating apart an outlet end of a converging motive section and an inlet end of a diverging discharge section by a lineal distance, and a suction port in fluid communication with the Venturi gap. The converging motive section and the diverging discharge section both gradually, continuously taper toward the Venturi gap, the converging motive section defines a circular-shaped motive inlet and an elliptical- or polygonal-shaped motive outlet, the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet, and an inner passageway of the converging motive section transitions as a hyperbolic function from the motive inlet to the elliptical- or polygonal-shaped motive outlet.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 2, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Patent number: 9568005
    Abstract: A discharge vacuum relief valve kit to provide vacuum relief for a SVRS pump in a hydraulic system is provided. The discharge vacuum relief valve kit includes a vacuum vent tube including a first end and a second end, a discharge vacuum relief valve coupled to the first end of the vacuum vent tube, and a vacuum vent screen coupled to the second end of the vacuum vent tube. The discharge vacuum relief valve is coupled to a drain plug opening of the SVRS pump.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 14, 2017
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: Ronald B. Robol, Daniel J. Hruby, Johnathan Steven Colvin
  • Patent number: 9375070
    Abstract: A stick-type cosmetic holder is formed in a cylindrical shape opened at upper and lower ends. On an inner peripheral surface, an inner diameter is gradually decreased from an upper opening downward to provide an upper tapered surface, and the inner diameter is gradually decreased from a lower opening upward to provide a lower tapered surface. A single annular step portion forming a step such that the lower tapered surface side is higher than the upper tapered surface side is provided at a boundary between the upper tapered surface and the lower tapered surface. The step portion is formed with an inclination in relation to the axial center as viewed from the lateral side. Moreover, taper angles of the upper and lower tapered surfaces are 1° to 10°, and the height of the step portion is 0.1 to 2.0 mm.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 28, 2016
    Assignee: KOSE Corporation
    Inventors: Kazuhiro Tsuhara, Hideyuki Onoe, Kei Arai, Hideto Shiba
  • Patent number: 9022073
    Abstract: Provided is a device for use in a shower system and a related method. The device may include an appliance for adding a medium to shower water. The appliance may be designed such that it works according to the principle of a water jet pump. Advantageously, the medium added to the shower water may contain one or more fragrance media.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 5, 2015
    Inventor: Urs Strauli
  • Patent number: 8584696
    Abstract: A water control structure of a faucet includes a main body, a water collecting base, and a water control valve. The main body is tubular with thin body wall, having a receiving space that receives the water collecting base having water inlet holes on lower portion thereof for water inlet tubes, and each water inlet hole extends upwards to form a water inlet channel, and a water outlet channel is formed therebetween. A water outlet hole is formed on an upper portion of the water outlet channel, and the water outlet hole is provided for the water connecting tube of the water channel to plug in. A valve base is formed on sideway of the water inlet channel and the water outlet channel. The faucet includes the main body and the water collecting base respectively, so the complexity of the main body is reduced, and the manufacturing process is simplified.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: November 19, 2013
    Assignee: Da Yuan Sheng Industrial Co. Ltd.
    Inventor: Ming-Yuan Hsu
  • Patent number: 7942166
    Abstract: A device for delivering gas is disclosed. The device may include a chamber and a guide. The chamber may include a set of input openings for receiving the gas and an output opening for providing the gas. The set of input openings may include a first hole and a second hole. The chamber may receive a first portion of the gas through the first hole and a second portion of the gas through the second hole. The guide may include a guiding unit. The guiding unit may be disposed inside the chamber. The guiding unit may contact the first portion of the gas before the first portion of the gas contacts the second portion of the gas and may contact the second portion of the gas before the second portion of the gas contacts the first portion of the gas.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: May 17, 2011
    Assignee: JAtech Precision (H.K.) Limited
    Inventor: James Lu
  • Publication number: 20080223465
    Abstract: In certain embodiments, an apparatus includes a control valve for regulating fuel flow. The apparatus can include a burner and a valve assembly. In some embodiments, the valve assembly includes a housing, which can define a first fuel input for receiving a first fuel from a first fuel source and a second fuel input for receiving a second fuel from a second fuel source. The housing can define a first fuel output for directing fuel toward the control valve, and can define a third fuel input for receiving a portion of either the first fuel or the second fuel from the control valve. The housing can define a first egress flow path and a second egress flow path, each for directing fuel to the burner. In certain embodiments, the apparatus includes a valve body configured to selectively permit fluid communication between the first and second inputs and the output and between the third input and the egress flow paths.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Inventor: David Deng
  • Patent number: 6571989
    Abstract: A metering device for releasing water and detergent has a three-way connector, a water quantity adjustment device, a detergent quantity adjustment device, and a detergent bottle. The three-way connector has a three-way channel, a first end connected to the detergent quantity adjustment device, a second end connected to the water quantity adjustment device, and a third end connected to a water outlet hose. The water quantity adjustment device has a swivel ring and a water amount control ring engaging with the swivel ring. The detergent quantity adjustment device has a rotating ring and a detergent amount control ring engaging with the rotating ring. The detergent bottle engages with the detergent amount control ring.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: June 3, 2003
    Inventor: Zhen-Yuan Jiang
  • 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: 6192911
    Abstract: A self-adjusting venturi/mixer is disclosed. An inlet port body and outlet port body having a converging region and diverging region, respectively, are longitudinally slidably disposed with respect to each other, forming an annular injection gap that widens when the ports are moved apart and narrows when the ports are moved together. The movement is accomplished by virtue of varying fluid pressure at the inlet port, which exerts frictional pull on the outlet port, pulling the inlet port body away from the outlet port body. In other embodiments, a flexible member is positioned peripherially around the annular gap so that as the gap widens, the flexible member deforms to partially close the gap. This keeps the bubble size small where a gas is being injected into a liquid, and also limits a maximum flow of additive material at excessive flow rates.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: February 27, 2001
    Inventor: Ronald L. Barnes
  • Patent number: 6098662
    Abstract: A longitudinally compact vacuum generator having an incorporated check valve. The generator includes a valve assembly housing having top and bottom portions. An exhaust housing is coupled to the top portion of the valve assembly and a venturi inlet port is located in the bottom portion of the valve assembly. A vacuum inlet port is configured in fluid communication with a suction chamber within the valve assembly and a pneumatic valve pressure supply port is configured in fluid communication with a pneumatic pressure supply channel.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: August 8, 2000
    Assignee: Advanced Pressure Technology, Inc.
    Inventor: Roger J. Gregoire
  • Patent number: 5931664
    Abstract: A non-mechanical leak proof coupling for use on a gas carrying pipe having two pipe sections which are moveable relative to each other. The coupling includes a first pipe section having an upstream end in flow communication with a stationary gas source and further includes a second pipe section having a downstream end in flow communication with a vibrating distribution chamber. A downstream end of the first pipe section and an upstream end of the second pipe section are disposed in closely spaced relation to define a gap therebetween. The first pipe section downstream end is in flow communication with the second pipe section upstream end such that the pressurized gas is communicated between the first pipe section to the second pipe section for discharge to the vibrating distribution chamber.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 3, 1999
    Assignee: General Kinematics Corporation
    Inventors: Albert Musschoot, Daniel T. Lease
  • Patent number: 5842497
    Abstract: A direct contact steam injection heater allows shear to be adjusted without taking the process off-line to relieve pressure within the heater. A stud is mounted to an adjustable combining tube within the heater. The stud extends through an opening in the heater body into a sealed housing. An adjusting mechanism exerts force on the combining tube stud within the sealed housing to move the combining tube longitudinally within the body to adjust the shear within the heater. The position of the combining tube is indicated by an analog revolution counter. The adjusting mechanism can be driven manually or by a motor. The motorized embodiment of the invention can be used with feedback control to automatically optimize shear.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: December 1, 1998
    Assignee: Hydro-Thermal Corporation
    Inventors: Brian N. Drifka, Bruce A. Cincotta
  • Patent number: 5816446
    Abstract: An apparatus for diluting and dispensing a liquid concentrate with a liquid diluent to form a use solution wherein the use solution has a higher viscosity than either the concentrate or the diluent is provided. The apparatus includes an aspirator, a liquid diluent conducting path, a liquid concentrate conducting path, and a liquid conducting outlet path. The aspirator has a first inlet port, a second inlet port, and an outlet port. The first inlet port is connected to the liquid diluent conducting path for receiving a stream of the liquid diluent and the second inlet port is connected to the liquid concentrate conducting path for receiving a stream of the liquid concentrate at atmospheric pressure. The liquid conducting outlet is connected to the outlet port for dispensing the use solution from the apparatus. The geometry of the aspirator nozzle and the fluid passageways in the dispenser are adapted to a high viscosity dilute product.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: October 6, 1998
    Assignee: Ecolab Inc.
    Inventors: Richard E. Steindorf, Charles A. Hodge, Carleton J. Parker, Richard H. Johnson
  • Patent number: 5775592
    Abstract: An apparatus and method for injecting a chemical upstream of a pressure washer includes an injector valve comprising a housing having a passageway through which the wash stream flows. The injector is installed upstream of the pressure washer pump. A chemical inlet is formed downstream from an adjustable orifice which causes the chemical to be drawn into the passageway through the chemical inlet. The injector also includes a plunger in which the adjustable orifice is formed. By moving the plunger, the passageway can be opened or blocked allowing the chemical to be selectively injected into the wash stream.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Suttner America Company
    Inventors: Thomas L. Goldsmith, Lother Hartmann
  • Patent number: 5758799
    Abstract: A method and apparatus for drawing and measuring an amount of liquid agrichemical and dispensing the measured amount of agrichemical for mixture with water and eventual application onto a field. The agrichemical is drawn into a measuring vessel by suction pressure, created in one embodiment by an air compressor and valving system, and in another embodiment by a valve-pump in conjunction with a 3-way valve. The agrichemical is then dispensed from the measuring vessel either by positive pressure created by the same air compressor/valving system, or by suction pressure created by valve-pump/3-way valve. The valve-pump provides both a mixing chamber for the agrichemical and water prior to tank storage for eventual application, and controllable suction pressure for drawing the agrichemical out of the measuring vessel for mixing. The valve-pump is also self-cleaning thereby reducing the possibility of cross-contamination.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 2, 1998
    Assignee: Murray Equipment, Inc.
    Inventor: David R. Patterson
  • Patent number: 5433365
    Abstract: A nozzle device for processing of synthetic yarns for intermingling or texturization. The nozzle device has a housing with an inlet end and an outlet end. The inlet end is located upstream in relation to the outlet end. An inner nozzle member is provided and has a conical outer wall portion and an essentially axial passage. An outer nozzle member is provided and has a conical inner wall portion. Both inner and outer nozzle members are kept in position within the housing. The conical outer wall section of the inner nozzle member and the inner wall portion of the outer nozzle member together form an outwardly conical gap having an upper or upstream end and a lower or downstream end. Inlet conduits or ducts are provided for passing a fluid into the housing and into a region thereof adjacent the upper end of the conical gap. The conical gap is defined by a generally annular cross-sectional area in any radial plane between the upper and the lower end of the gap.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: July 18, 1995
    Assignee: Filteco S.p.A.
    Inventor: John Davies
  • Patent number: 5360144
    Abstract: Dispenser for dispensing simultaneously two liquids held in respective flexible containers, one within the other. Concentric tubular passages are provided for flows of the liquids from their containers when pressure is applied to the outer container. The inner passage has a narrow elonage form and terminates within the outer passage a final exit section of which provides a common conduit for both flows. A reduced liquid pressure is produced at the inner passage termination by having a tapered upstream end of the conduit overlapping the termination and the conduit is configured to inhibit mixing of the flows along its length. The two liquids are thus dispensed in a single stream in which, e.g., a colored flow from the inner passage is visible in the core of the stream. By adjusting the position of the conduit taper relative to the inner passage termination, it is possible to vary the proportions of the two components in the flow.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: November 1, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventor: Brian P. Slade
  • Patent number: 5282573
    Abstract: A flame spray coating system includes a thermoplastic resin powder supply hopper, an eductor adapted to entrain powder in a stream of conveying air, a valve disposed between the powder hopper and eductor for controlling the flow of powder from the hopper into the eductor, a flame spray gun and conduits interconnected between the flame spray gun and pressurized air and combustion gas sources for delivering flows of propelling air, conveying air, powder entrained in conveying air, and a combustible gas to the flame spray gun, and an eductor control disposed on the flame spray gun for controlling operation of the valve disposed between the powder hopper and eductor. A solid circular coating pattern is created with a nozzle constructed for twirling the entrained powder and conveying air. Interchangeable combustion nozzles of different sizes allow the same spray gun to be used for different substrate conditions.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: February 1, 1994
    Assignee: Plastic Flamecoat Systems, Inc.
    Inventor: James H. Reimer
  • Patent number: 5002092
    Abstract: The present invention provides an adjustable venturi device designed for efficient use with blowers of various different capacities. The venturi device of the present invention includes a blower feedable positive air passage and a negative pressure air inlet exposed to and operated by air draw from the positive air passage. The venturi device is adjustable for varying exposure of the air inlet to the positive air passage with resultant varying of the air draw according to capacity of the particular blower used with the venturi device.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: March 26, 1991
    Inventor: Frank V. Oirschot
  • Patent number: 4917152
    Abstract: A fluid injector consisting of an airfoil cross-sectioned rectangular plate mounted on and perpendicular to a pivoted hollow tube and suspended within a flowing stream of fluid into which another or the same type of fluid is to be injected through the tubular support exiting out the top surface of the plate and mixing with the primary fluid by means of vortices created at the rear side edges of the wing shaped plate. The quantity of injected fluid is controlled by the angle the plate is set in reference to the direction of flow of the primary fluid.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: April 17, 1990
    Inventor: William T. Decker
  • Patent number: 4860959
    Abstract: This invention relates to apparatus for subjecting particles dispersed in a fluid to a shearing action thereby to reduce the size of the particles. The apparatus comprises a body having a flow passage therethrough, and first and second nozzle members defining an annular orifice generally adjacent one end of the passage and generally coaxial therewith, the orifice having an axial dimension constituting its length (L) and a radial dimension constituting its width (W). The nozzle surfaces defining the orifice are generally parallel to one another and generally parallel to the axis of the one of the passage, which allows the length of the orifice to be adjusted, without changing the width of the orifice, by effecting axial movement of the second nozzle member relative to the first nozzle member. The width of the orifice may be adjusted by replacing either nozzle member with nozzle members of different configurations.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: August 29, 1989
    Assignee: Semi-Bulk Systems, Inc.
    Inventor: Avrom R. Handleman
  • Patent number: 4817825
    Abstract: A water jet injection device for use with mixed beverage dispensing machi is provided, wherein a bushing-type sealing element which fulfills several functions is placed in the injector housing. In particular, the sealing element sealingly separates the mixing chamber from the rearward section of the injector housing in a reliable manner and further acts as a nonreturn valve hermetically sealing the mixing chamber against the supply conduit for fruit syrup or concentrate when the injector in the mixing chamber is inoperative and, at the same time, the sealing element provides a seal when an intake conduit or the like is connected with the lateral intake opening of the injector housing.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: April 4, 1989
    Assignee: Dagma Deutsche Automaten- Und Getrankemaschinen GmbH & Co. KG
    Inventor: Uwe Freese
  • Patent number: 4615352
    Abstract: The gaseous CO.sub.2 is supplied at a pressure of 10 bars and at a constant rate of flow to the primary inlet (3) of an aspiration device (1). Gaseous SO.sub.2 coming from a cylinder (24) which is heated and contains liquid SO.sub.2 is conducted through a heated line (4) provided with an adjustable flow meter (27) to the secondary inlet (5) of the aspiration device. The mixture issuing from the latter is injected into a buffer tank (6) whose pressure is regulated at a value higher than the pressure of utilization and is drawn from this buffer tank when utilized. Applications in the supplying of mixtures for hardening sand moulds or cores to foundries of medium size.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: October 7, 1986
    Assignee: Carboxyque Francaise
    Inventor: Claude Gibot
  • Patent number: 4508272
    Abstract: A device for mixing and dispensing fluids comprising a head unit having a flow passage provided with a converging portion for receiving a first liquid stream from a pressurized source A hollow pipe rotatably mounted in the head unit is provided with a suction port through which a second liquid may be introduced into the flow passage downstream of the converging portion. The hollow pipe partially projects into the flow passage thereby forming a restriction in the flow passage, a low pressure region thus being formed downstream of the suction port. A chamber may be provided in the flow passage downstream of the converging portion thereof and upstream of the suction port. The chamber is vented to atmosphere thereby providing a vacuum break so as to prohibit the second liquid from being drawn back into the source of the first liquid upon terminating the flow of the first liquid stream.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: April 2, 1985
    Inventor: Lincoln Thompson
  • Patent number: 4462429
    Abstract: An apparatus for injecting a lubricating liquid, e.g., water, into a conduit as an annular layer around a flowing Bingham solid, e.g., a water gel or water-in-oil emulsion explosive, to facilitate the flow of the Bingham solid has an annular passageway from which the lubricating liquid flows into a cylindrical chamber containing the flowing Bingham solid. The annular passageway has a constricted throat portion of adjustable width, which, along with the flow rates of the Bingham solid and the lubricating liquid, is adjusted to produce a thin film of lubricant which allows lubricated plug flow of the Bingham solid in a descending section of conduit under the propelling force of gravity alone. Low drag permits the delivery of Bingham solid explosives into very deep vertical holes with no increase in the required pumping pressure.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: July 31, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David L. Coursen
  • Patent number: 4277030
    Abstract: A versatile portable fluid dispensing, manually controlled gun with instant selectivity of hard, soft or foam flow of liquids, either of water or a solution, with or without entrainment of fluid such as air and with or without a foaming flow of the fluid whereby each of a great many different relations of discharge can be selected with a versatile solution discharge nozzle that provides selectively changeable liquid solid jet streams or soft flows of liquids with or without entrainment of a fluid such as air; and selectively with entrainment of air operable either with or without a foaming agent in the liquid. Instant controls interchangeably operated provide any one of twelve different dispensing relations with water alone or with a chemical foaming agent, each supplied separately or together as a mixture; in each of these phases, namely jet flow, soft flow and foam flow.
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: July 7, 1981
    Inventor: Valentine Hechler, IV