Device Including Passages Having V Over Gamma Configuration Patents (Class 137/841)
  • Patent number: 9033003
    Abstract: A device for vibrating tubing as it is inserted into a wellbore is disclosed. The device has a fluidic switch that has no moving parts. The fluidic switch is connected to a piston that oscillates back and forth in a cylinder. The piston is the only moving part. As the piston oscillates, it blocks and unblocks openings in the cylinder or other components. The movement of the piston controls the timing of the oscillation, and also generates an impulse or vibration. The vibration may reduce the friction between the tubing and the wellbore.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 19, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Robert Standen, Douglas James Brunskill
  • Patent number: 8770229
    Abstract: A fluidic device which produces fluid pulses having a selected pulse repetition frequency, pulse duration, pulse peak pressure and pulse peak flow rate includes first, second and third fluid flow controlling channels or lumens which converge in a junction, defining a “Y” configuration having a base leg and right and left diverging arms. The first leg portion has a fluid input and terminates downstream at the Y junction of the base and the two diverging arms. The first leg has converging walls which reduce the cross sectional area of the flow to thereby increase the fluid velocity to make a fluid jet. The second or right leg, begins at the Y junction and terminates distally in an enclosed, fluid-tight container having a selected blind volume. The third, or left leg, begins at the Y junction and terminates distally in a fluid outlet passage having a selected cross-sectional area.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 8, 2014
    Assignee: Bowles Fluidics Corporation
    Inventors: Shridhar Gopalan, Kerrie Allen, Gregory Russell, Jerry Thurber
  • Patent number: 8714199
    Abstract: A valve (100) is provided according to an embodiment of the invention. The valve (100) comprises a body (102) including a plurality of ports (204, 205, 206). The valve (100) also comprises a valve actuator (150) positioned within the body (102). The valve actuator (150) includes a slider (110) and one or more shape memory alloy elements (112a, 112b). The one or more shape memory alloy elements (112a, 112b) are coupled to at least one side (113, 114) of the slider (110). The slider (110) is movable between a first position and at least a second position upon energizing at least one of the shape memory alloy elements (112a, 112b) of the one or more shape memory alloy elements (112a, 112b) in order to actuate the valve (100).
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: May 6, 2014
    Assignee: Fluid Automation Systems SA
    Inventors: Nicolas Deperraz, Julien Solioz, Michael Baumgartner
  • Patent number: 8646483
    Abstract: A fluidic oscillator can include an input, first and second outputs on opposite sides of a longitudinal axis of the oscillator, whereby a majority of fluid which flows through the oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and wherein the first and second paths cross each other between the input and the respective first and second outputs. Another oscillator can include an input, first and second outputs, whereby a majority of fluid flowing through the fluidic oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and a feedback path which intersects the first path, whereby reduced pressure in the feedback path influences the majority of fluid to flow via the second path.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: February 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Robert Pipkin
  • Patent number: 8387662
    Abstract: A device for directing the flow of a fluid comprises: a pressure pocket; a first fluid passageway; a pressure source; and a pressure switch, wherein the first fluid passageway operationally connects at least the pressure pocket and the pressure source, and wherein the pressure switch is positioned adjacent to the pressure source. According to an embodiment, depending on at least one of the properties of the fluid, the fluid that flows into the pressure pocket changes. In one embodiment, the change is the fluid increasingly flows into the pressure pocket. In another embodiment, the change is the fluid decreasingly flows into the pressure pocket. According to another embodiment, a flow rate regulator comprises: the device for directing the flow of a fluid; a second fluid passageway; a third fluid passageway; and a fourth fluid passageway.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 5, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jason D. Dykstra, Michael L. Fripp
  • Patent number: 8206975
    Abstract: A method and a microfluidic device are provided to regulate fluid flow by equalization of channel pressures. The fluid flow is regulated by way of valve-actuated channel pressures.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: June 26, 2012
    Assignee: California Institute of Technology
    Inventors: Xiaoyan Robert Bao, Stephen R. Quake, Melvin I. Simon
  • Patent number: 6637463
    Abstract: Methods and apparatus are presented for controlling fluid flow through flow paths with pressure gradient fluid control. Passive fluid flow barriers may be used to act as valves, thereby allowing the flow of fluids through flow paths to be regulated so as to allow fluids to be introduced via a single channel and subsequently split into multiple channels. Flow through the flow paths can be regulated to allow a series of sister wells or chambers to all fill prior to the fluid flowing beyond any one of the sister wells or chambers. Each flow path may have multiple segments, at least one of which is designed to balance the pressure drops of the flow paths to provide uniform flow of fluids through the flow paths. The configurations of the wells may also be modified by adding vents or flow dividers to enhance fluid flushing and gas removal capability.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: October 28, 2003
    Assignee: BioMicro Systems, Inc.
    Inventors: Ming Lei, Nils B. Adey, Michael R. McNeely
  • Patent number: 6601613
    Abstract: Methods of controlling fluid flow through microchannels by use of passive valves or stopping means in the microchannels is presented. The passive valves act as pressure barriers impeding flow of solution past the stopping means until enough force is built up to overcome the force of the pressure barrier. Well planned use of such stopping means acting as passive valves allows the flow of fluids through microchannels to be regulated so as to allow fluids to be mixed or diluted after being introduced via a single channel, or to be split into multiple channels without the need for individual pipetting. Flow through the multiple channels can be regulated to allow a series of sister wells or chambers to all fill prior to the fluid flowing beyond any one of the sister wells or chambers. The filling of sister wells or chambers in this manner allows all wells or chambers to undergo reactions in unison. The use of air ducts to prevent trapping of air in the microchannels is also presented.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: August 5, 2003
    Assignee: BioMicro Systems, Inc.
    Inventors: Michael R. McNeely, Arnold R. Oliphant, Mark K. Spute
  • Patent number: 6591852
    Abstract: Methods and apparatus for controlling fluid flow through microchannels by use of passive valves or stopping means comprised of abrupt microchannel widenings in the microchannels are presented. Such passive fluid flow barriers create pressure barriers impeding flow of solution past the passive fluid flow barriers until enough force is built up to overcome the force of the pressure barrier. Use of such stopping means acting as passive barriers or valves allows the flow of fluids through microchannels to be regulated so as to allow fluids to be mixed or diluted after being introduced via a single channel, or to be split into multiple channels without the need for individual pipetting. Flow through the multiple channels can be regulated to allow a series of sister wells or chambers to all fill prior to the fluid flowing beyond any one of the sister wells or chambers. The filling of sister wells or chambers in this manner allows all wells or chambers to undergo reactions in unison.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: July 15, 2003
    Assignee: BioMicro Systems, Inc.
    Inventors: Michael R. McNeely, Mark K. Spute, Arnold R. Oliphant
  • Patent number: 6296020
    Abstract: Methods of controlling fluid flow through microchannels by use of passive valves or stopping means in the microchannels is presented. The passive valves act as pressure barriers impeding flow of solution past the stopping means until enough force is built up to overcome the force of the pressure barrier. Well planned use of such stopping means acting as passive valves allows the flow of fluids through microchannels to be regulated so as to allow fluids to be mixed or diluted after being introduced via a single channel, or to be split into multiple channels without the need for individual pipetting. Flow through the multiple channels can be regulated to allow a series of sister wells or chambers to all fill prior to the fluid flowing beyond any one of the sister wells or chambers. The filling of sister wells or chambers in this manner allows all wells or chambers to undergo reactions in unison. The use of air ducts to prevent trapping of air in the microchannels is also presented.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 2, 2001
    Assignee: BioMicro Systems, Inc.
    Inventors: Michael R. McNeely, Arnold R Oliphant, Mark K. Spute
  • Patent number: 4549574
    Abstract: A fluidic diverter comprising a housing forming a chamber having an inlet at one end and two diverging outlets at the opposite end. An asymmetric configuration is produced within the chamber by axially spaced steps in opposing walls of the chamber and a single control port communicates with the chamber at a position associated with the step adjacent the inlet. In use and in the absence of a control at the control port, flow will emerge through the outlet at the side of the chamber associated with the control port. A fluidic pumping system includes a fluidic pump having the fluidic diverter in a delivery line of the pump.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: October 29, 1985
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: Stephen A. Taylor
  • Patent number: 4518013
    Abstract: A pressure compensating, water flow control device in which the incoming water is split between first and second flow paths. The first flow path is in the form of a closed loop and the second flow path includes a vortex chamber. The outlet from the device is co-axial with said vortex chamber. Both ends of the closed loop communicate with an inlet zone. The vortex chamber is, in one form, connected to said inlet zone by a passage and, in another form, said chamber and said inlet zone are contiguous.
    Type: Grant
    Filed: November 29, 1982
    Date of Patent: May 21, 1985
    Inventor: John H. Lazarus
  • Patent number: 4484601
    Abstract: A liquid level control device for controlling the flow of liquid into a reservoir, storage tank or the like, incorporating automatic shut-off characteristics. The device includes nozzle means including a fluid amplifier for automatically closing valve means in response to sensing means disposed remote from the nozzle means and fluid amplifier. The remote sensing means is responsive to the static presence of the interface at a sensing level of liquid in the reservoir.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: November 27, 1984
    Inventor: Daniel N. Campau
  • Patent number: 4190083
    Abstract: A fluidic pyrotechnic initiator capable of initiating a fluid resonator cridge initiator upon receipt of a low pressure input signal. A monostable supersonic wall-attachment fluidic amplifier is used with a control channel to detach the supersonic jet, causing it to impact the resonator tube of the initiator. A vent is provided to keep an over pressure in the control channel from initiating the cartridge.
    Type: Grant
    Filed: September 7, 1977
    Date of Patent: February 26, 1980
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Tadeusz M. Drzewiecki, John M. Goto
  • Patent number: 4121620
    Abstract: A device for simultaneously modulating and amplifying low frequency sounds which comprises a tubular member having an axial bore extending a distance interiorly of the inlet end thereof and tapering to a reduced axial bore in said tubular member. A generally perpendicular passageway in said tubular member intersects said reduced axial bore, the top wall of which terminates adjacent to said intersection and the bottom wall of which extends past said intersection, said extended portion being deflected a finite angle relative to the normal axial flow. The tubular member is received by a sleeve, and a first baffle flared in the direction of the flow is angularly disposed relative to said sleeve to define a first passageway in said tubular member.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: October 24, 1978
    Assignee: L.P.S. Incorporated
    Inventors: Charles G. Pickett, Ronald S. Pickett
  • Patent number: 3938557
    Abstract: A fluidic device using a free jet in which a control nozzle or nozzles terminate within the emitter jet, is disclosed. Positioning the ends of the control nozzles within the emitter jet avoids jet distortion when acted upon by control fluid for deflection. In the preferred embodiment, geometric symmetry is provided, either with control nozzles in pairs disposed opposite to each other, or another control member, such as a rod, disposed opposite to each control nozzle. A receiver for preventing air or gas entrainment is also disclosed. The device provides high efficiency, low noise, and operates with low pressure.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: February 17, 1976
    Assignee: Canadian Patents and Development Limited
    Inventor: J. Douglas Malcolm