With Valved Proportioning Means Patents (Class 73/203)
  • Patent number: 10921219
    Abstract: A system for on-stream sampling of pressurized process gas such as natural gas or the like, said system optimized for use with pressurized process gas having liquid entrained therein, or otherwise referenced as “wet”. In the preferred embodiment, the probe tip is situated laterally from one side of the inner pipe wall to the other so as to span the entire inner diameter (ID) of the pipe, the probe tip having formed along its outer surface sample collection slot along the length of said outer surface, providing a “linear sample” of the fluid flow of the entire breadth of the flow, providing an accurate sample of even disassociated flow with entrained liquid particles and flow. Embodiments for continuous sampling, batch mode, spot sampling are provided, as well as an anti-vibration feature.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: February 16, 2021
    Assignee: MAYEAUX HOLDING, LLC
    Inventor: Valmond Joseph St Amant, III
  • Patent number: 10281443
    Abstract: A gas detection device includes: a gas sensor that detects a gas based on a change in an electric signal due to adsorption of a gas to be measured; a rotary body having the gas sensor mounted therein; and a motor that rotates the rotary body. The gas sensor is disposed at a location apart from a rotation axis of the rotary body. The motor rotates the rotary body at a constant rate.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: May 7, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masanori Miura
  • Patent number: 9557747
    Abstract: A flow control regulator assembly having a regulator body with an inflow channel that couples an inlet of the regulator body to a flow rate port and an exit flow channel which couples the flow rate port to an outlet port of the regulator body. The minimal cross-sectional area of the exit flow channel is larger than the maximum cross-sectional area of the inflow channel.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: January 31, 2017
    Assignee: LINCOLN GLOBAL, INC.
    Inventor: Michael D. Brown
  • Patent number: 9128490
    Abstract: The invention is a butterfly valve for a flow duct of an air-conditioning installation. The butterfly valve comprises two butterfly valve faces and is mounted for rotation about an axis. A device with at least two measurement points for determining the volume flow rate of a gaseous medium flowing in the flow duct is provided. In order to specify a butterfly valve, for example for a volume flow rate controller, which can determine a high differential pressure, even at very low volume flow rates, the butterfly valve comprises at least one hollow chamber on each of its two butterfly valve faces. Each hollow chamber has at least one recess, preferably with a multiplicity of recesses formed in the manner of a perforation. One measurement point is associated with one hollow chamber and the other measurement point is associated with the other hollow chamber.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 8, 2015
    Assignee: TROX GmbH
    Inventors: Manfred Sadkowski, Heike Schicks
  • Patent number: 8707780
    Abstract: The device for metering fluid mixtures, in particular liquids containing a gas such as carbon dioxide, includes a flow sensor, a metering valve, and a controller that drives the metering valve as a function of a set point and of the flow rate measured. The flow sensor has an impeller wheel having a horizontal axis, the fluid mixture being guided on an arcuate path on the periphery of the impeller wheel, the path being directed from bottom to top. Despite the presence of gas, a precise metering is achieved.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 29, 2014
    Assignee: Buerkert Werke GmbH
    Inventors: Rene Bachmann, Kersten Grosse, Johann Gunnesch, Thomas Morchel, Daniel Rammer
  • Publication number: 20140013838
    Abstract: A flow rate measurement device includes a branched pipe passage having an inlet side end portion detachably joined in a branched manner to an upstream portion of on-off valve V0 provided on an outlet end portion of a gas supply line, and an outlet side end portion of the branched pipe passage joined to a gas flow-out side, an on-off valve V provided on the outlet side of the branched pipe passage, a pressure detector and a temperature detector that detect gas pressure and temperature on the upstream side of the on-off valve V, and an arithmetic operation control device receiving detection signals as input from the pressure detector and the temperature detector, and which arithmetically calculates gas flow rate of gas flowing in the branched pipe passage, and the flow rate measurement device is detachably joined in a branched manner to the upstream portion of the on-off valve V0.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 16, 2014
    Applicant: FUJIKIN INCORPORATED
    Inventors: Yohei Sawada, Masaaki Nagase, Nobukazu Ikeda, Kouji Nishino, Ryousuke Dohi
  • Patent number: 8539827
    Abstract: A water meter (10) and a flow control valve (30) are housed in a common pressure vessel (16), in which the flow control valve (30) restricts flow through a metering chamber (18) to less than the normal flow, while still permitting a flow sufficient for basic human needs, rather than completely interrupting supply of the utility, and in which the flow control valve (30) is controlled electrically through a control valve (40) in an energy efficient manner so as to utilize power from a self-contained power source (27) in another device (25) at the customer site (50).
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 24, 2013
    Assignee: Badger Meter, Inc.
    Inventors: Ronald D. Benson, Eric Metzger
  • Publication number: 20110138904
    Abstract: A fluid measurement device includes a fluid measurement unit which includes a plurality of fluid measurement sections configured to measure a measurement fluid introduced into a measurement chamber from the outside, each of the fluid measurement sections including a fluid measurement sensor on which the measurement fluid introduced into the measurement chamber acts. The fluid measurement devise includes a measurement controller which sequentially introduces the measurement fluid into each of the fluid measurement sections every set time shorter than a fluid measurement time required for one of the fluid measurement sections to conduct one fluid measurement, the measurement controller measuring the fluid to provide a time difference for each of the fluid measurement sections, and a central controller which accumulates fluid measurement data from the fluid measurement sensors and rapidly measures a change of the external measurement fluid.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 16, 2011
    Applicant: TOPPAN PRINTING CO., LTD
    Inventor: Noritaka Nakaso
  • Publication number: 20110083502
    Abstract: The device for metering fluid mixtures, in particular liquids containing a gas such as carbon dioxide, includes a flow sensor, a metering valve, and a controller that drives the metering valve as a function of a set point and of the flow rate measured. The flow sensor has an impeller wheel having a horizontal axis, the fluid mixture being guided on an arcuate path on the periphery of the impeller wheel, the path being directed from bottom to top. Despite the presence of gas, a precise metering is achieved.
    Type: Application
    Filed: February 4, 2009
    Publication date: April 14, 2011
    Inventors: Rene Bachmann, Kersten Grosse, Johann Gunnesch, Thomas Morchel, Daniel Rammer
  • Patent number: 7886593
    Abstract: To provide a highly accurate flow meter. A Flow meter comprising an inflow opening into which a measurement fluid flows, an outflow opening from which a measurement fluid flows, and a flow path connecting the inflow opening and the outflow opening, wherein the flow path is bent at a first bend portion, wherein: a first porous plate is disposed in the first bend portion of the flow path at an angle relative to the direction in which the flow path extends before and after the first bend portion, and a flow sensor for detecting the flow speed or flow volume of a measurement fluid that flows in the flow path, disposed on the inner wall of the flow path on the outflow opening side of the first bend portion.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: February 15, 2011
    Assignee: Yamatake Corporation
    Inventors: Hiroyuki Inagaki, Shigeru Aoshima, Takeshi Watanabe
  • Publication number: 20110016968
    Abstract: A metering device (1) is proposed for metering a fluid and for conducting a fluid, with a pre-metering chamber (3) for portioning the fluid. In order to permit an improved, in particular precise metering, at least one separating element (8) which is buoyant in the fluid because of buoyancy is provided in the pre-metering chamber (3).
    Type: Application
    Filed: July 15, 2010
    Publication date: January 27, 2011
    Inventors: Heinz-Dieter Eichholz, Gerold Jans, Roland Schmalz, Ba Loc Nguyen, Michael Pasternak
  • Publication number: 20100251814
    Abstract: A flow sensing valve includes a valve housing having an inlet port, an outlet port, and a plurality of flow sensing ports. A valve member, located within the valve housing, is configured to move between an open position and a closed position. The valve member allows fuel flow between the inlet port and outlet port in the open position, and blocks fuel flow between the inlet port and the outlet port in the closed position. A position sensor, operably coupled to the valve member, is configured to determine a valve position of the flow sensing valve. The valve position is indicative of a valve open port area. A metered flow rate of pressurized fuel through the flow sensing valve in a upstream manifold is proportional to the valve open port area because the flow sensing valve maintains a nearly constant differential pressure across the inlet and outlet ports.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Applicant: Woodward Governor Company
    Inventors: Carthel C. Baker, Terence J. Voskuil
  • Publication number: 20100064798
    Abstract: To provide a highly accurate flow meter. A Flow meter comprising an inflow opening into which a measurement fluid flows, an outflow opening from which a measurement fluid flows, and a flow path connecting the inflow opening and the outflow opening, wherein the flow path is bent at a first bend portion, wherein: a first porous plate is disposed in the first bend portion of the flow path at an angle relative to the direction in which the flow path extends before and after the first bend portion, and a flow sensor for detecting the flow speed or flow volume of a measurement fluid that flows in the flow path, disposed on the inner wall of the flow path on the outflow opening side of the first bend portion.
    Type: Application
    Filed: July 14, 2009
    Publication date: March 18, 2010
    Applicant: Yamatake Corporation
    Inventors: Hiroyuki Inagaki, Shigeru Aoshima, Takeshi Watanabe
  • Publication number: 20080184792
    Abstract: The present invention relates to an apparatus and method for improved check valve technology used in flow meters, particularly compound/combo meters. The improved check valve technology may be comprised in a single piece module that (1) can easily be removed from the meter without disturbing the metering module, (2) has few or no complicated rollers and pins that require calibration, (3) requires little or no special training to remove, (4) does not require the meter repairperson to move relatively heavy objects, (5) comprises a seal as part of the check valve assembly simplifying seal inspection, seal removal and seal replacement; and (6) is secured in its housing using only external fasteners. The check valve module further comprises fluid hammer relief features.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 7, 2008
    Inventors: Earl H. Parris, Timothy L. Greenfield, John Michael Kay
  • Publication number: 20080022765
    Abstract: A flow meter with a metering device for intaking and metering a defined volume of a fluid, and with a control unit for controlling the fluid intake of the metering device for determining a flow rate of the fluid.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 31, 2008
    Inventors: Klaus Witt, Philip Herzog
  • Patent number: 6253605
    Abstract: A proportioning element (10) for proportioning a fluid flow from an input side to an output side of the proportioning element (10) comprises a membrane (12) provided with at least one opening (16) acting as a flow resistor for a medium to be proportioned. The membrane (12) has additionally integrated therein a pressure sensor (14) used for detecting a pressure difference between the input side and the output side of the proportioning element (10). The proportioning element is implemented as a semiconductor chip, the membrane (12) being a semiconductor membrane and areas of the semiconductor chip which are exposed to the medium to be proportioned being provided with a passivation layer.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: July 3, 2001
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventor: Martin Richter
  • Patent number: 5728942
    Abstract: A system for improving fluid pressure measurement in a control valve includes placing a flow conditioner adjacent to and upstream from averaging channels located at the inlet and outlet of the control valve, from which averaging channels the fluid is conducted to fluid pressure measuring devices.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: March 17, 1998
    Inventor: Henry W. Boger
  • Patent number: 5723783
    Abstract: An acoustic displacement flowmeter determines the flow rate of a fluid in a path containing a controllable valve by establishing fluid flow along the path, directing the flow of the fluid to a transducer having a displacement element by restricting the flow path, generating a signal from the transducer representative of displacement due to fluid flow while the flow path is restricted, using the transducer to determine the fluid flow rate, and reestablishing fluid flow along the path by removing the restriction. The transducer signal is used to determine the fluid flow rate by providing an analog reference signal, integrating the analog reference signal for a predetermined time period, deintegrating the integrated reference signal with the transducer signal until the value of the deintegration signal reaches a threshold value, and using the time required for the deintegration signal to reach the threshold value to calculate the flow rate.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: March 3, 1998
    Assignee: J & W Scientific, Incorporated
    Inventor: William Stephen Woodward
  • Patent number: 5650565
    Abstract: A mini-diluter apparatus and method are provided for preparing dilute samples of exhaust gas for emission testing. The apparatus includes first and second mass flow controllers which respectively control the mixing of exhaust gas and diluent gas samples at a constant ratio. The mixture is fed at a pressure, controlled by a back pressure regulator, to a third mass flow controller. This third controller provides a controlled sample rate (normally proportional to exhaust flow from an engine under test) to a bag sample system, or other sampling system, with excess mixture being exhausted through a pressure regulator to atmosphere. Improved accuracy and reduced calibration complexity are results of the improved apparatus and method.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: July 22, 1997
    Assignee: Enviromental Sciences Research and Development Partnership
    Inventors: Donald B. Nagy, Jon Richard McLeod, Francis Patrick Schroeder, Steven Scott DeCarteret
  • Patent number: 5540104
    Abstract: An acoustic displacement flowmeter uses a high-compliance acoustic-type displacement transducer to measure fluid flow accumulated by temporarily restricting the flow of a fluid along a path. The displacement transducer signal, representative of fluid flow rate, is integrated after an initial settling period elapses, and the integrated signal is periodically sampled. The number of samples taken during a measurement cycle depends upon the slope of the integrated signal and the maximum sample period permitted. The samples are summed and the actual flow rate is computed by a microcomputer.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: July 30, 1996
    Assignee: J&W Scientific Incorporated
    Inventor: W. Stephen Woodward
  • Patent number: 5460038
    Abstract: An acoustic displacement flowmeter uses a high-compliance acoustic-type displacement transducer to measure fluid flow accumulated by temporarily restricting the flow of a fluid along a path. The displacement transducer signal, representative of fluid flow rate, is integrated after an initial settling period elapses, and the integrated signal is periodically sampled. The number of samples taken during a measurement cycle depends upon the slope of the integrated signal and the maximum sample period permitted. The samples are summed and the actual flow rate is computed by a microcomputer.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: October 24, 1995
    Assignee: Curtin Matheson Scientific, Inc.
    Inventor: W. Stephen Woodward
  • Patent number: 5297427
    Abstract: An adjustable laminar flowmeter is disclosed for use in fluid flow measurement. The flowmeter comprises a plurality of paths, at least one of which has at least one dimension which is adjustable by means of an adjustment mechanism. A measuring device is located in operative relation with at least one of said paths to measure a characteristic of the flow through that path. By maintaining laminar flow, the ratio of fluid flow through the paths is linear for a wide range of flows. This allows for a simple straight-line approximation of the flow for a wide range of flow. Also, the full scale flow rate through the device is user adjustable. The symmetrical design of the flowmeter enables bi-directional flow measurement.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: March 29, 1994
    Assignee: Alicat Scientific, Inc.
    Inventor: Ali Shambayati
  • Patent number: 5231871
    Abstract: An object of the present invention is to provide a hot-electrical-resistance type gas flow meter wherein a deterioration of a gas-cooled hot-electrical-resistance is prevented at the maximum flow rate, a decrease of sensitivity is prevented at the minimum flow rate and a wide dynamic range is achieve, and a structural feature of such gas flow meter is that the gas flow meter includes auxiliary path flow resistance changing means for changing a flow resistance of the auxiliary path so that the larger the flow rate of the flow is, the larger the flow resistance of the auxiliary path is.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: August 3, 1993
    Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.
    Inventors: Nobukatsu Arai, Kaoru Uchiyama, Toshifumi Usui, Shinya Igarashi
  • Patent number: 5090240
    Abstract: A bypass flowmeter assembly has a plurality of branch pipes (11) connected in parallel with a main pipe (10), with at least one of the branch pipes having a respective flowmeter (14), and at least another of the branch pipes having respective selectively operable pipe closure means (12, 13). Preferably each branch pipe has a flowmeter and closure means. Preferably also control means (30) are provided to operate the closure means through a routine of successive phases of respectively different patterns of branch pipe flow. This allows derivation of main pipe flow rate on the basis of branch pipe flowmeter measurements with comparison of flowmeter outputs between different phases to eliminate high order measurement error, averaging of such outputs to reduce low order measurement error, or by computation to eliminate unknown factors. The assembly can be connected serially with a similar assembly (20) to monitor relative variations in the total flow of interest and adjust the actual measurement of this flow.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: February 25, 1992
    Assignee: National Research Development Corp.
    Inventors: Roger C. Baker, Edward H. Higham
  • Patent number: 5029470
    Abstract: The invention pertains to a device for measuring and regulating the mass of a flow of gases by means of a bypass system with a sensor capillary element, a regulating valve, and an electronic component for elucidating and evaluating measurements received from the sensor element for controlling the regulating valve, and with a basic body of metal, which has a gas flow-through conduit connected to a threaded inlet and a threaded outlet, while two channels leading to and from the sensor element branch off from the gas flow-through conduit.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: July 9, 1991
    Assignee: Wigha Elektronische Messtechnik GmbH
    Inventor: Leonard Gamperl
  • Patent number: 4884441
    Abstract: The flowmeter of the present invention comprises at least two separate flow passages wherein one of the two flow passages include a shut-off valve with an actuator and the other of the two passage includes a flow rate sensor for measuring flow rate through that flow passage. In the mode of full capacity operation, both of the two flow passages stay fully open and the flow rate through the two flow passages is determined from the flow rate sensor measuring the flow through one of the two flow passages by multiplying by a factor such as two. In the mode of reduced capacity operation, the shut-off valve shuts off one of the two flow passages and the flow rate is directly determined from the flow rate sensor.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: December 5, 1989
    Inventor: Hyok Sang Lew
  • Patent number: 4870859
    Abstract: A method and apparatus for controlling the operation of a normally open bypass valve in a steam turbine air inleakage exhaust vent pipe. The valve is used to bypass a flowmeter connected in a bypass pipe parallel with the valve. The flowmeter provides signals indicative of bypassed flow. The method and apparatus compares the signals from the flowmeter to a reference signal corresponding to a first predetermined flow rate and generates a valve closure signal if the flow through the flowmeter is less than the predetermined flow rate. If the valve is closed, the signals from the flowmeter are used to display the actual air inleakage exhaust rate. If the flow exceeds a second predetermined value, a signal is generated to open the valve for bypassing the exhaust through the valve around the flowmeter. During the second mode of operation, the flowmeter indicates only approximate inleakage exhaust flow rate.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: October 3, 1989
    Assignee: Westinghouse Electric Corp.
    Inventor: Michael Twerdochlib
  • Patent number: 4858647
    Abstract: Disclosed is a valve having a body having an inlet channel, an outlet channel in fluid communication with the inlet channel, and a flow-monitoring region situated medially between the inlet and outlet channels. Further provided within the body is a secondary channel having a first end and a second end, the first end in fluid communication with the inlet side of the flow-monitoring region and the second end extending to the outside of the body. The first end of the secondary channel is provided with an area of constriction proximal to the inlet side of the flow-monitoring region. Within the secondary channel is a piston slideably moveably situated. The piston is a pole magnet having a magnetic axis substantially co-linear with the axis of the secondary channel. The diameter of the piston is greater than the diameter of the constriction. Secured within the second end of the secondary channel is a plug. This plug is a pole magnet having a magnetic axis in alignment with the axis of the secondary channel.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 22, 1989
    Assignee: Chem Tech Equipment Corp.
    Inventor: Craig S. Custer
  • Patent number: 4840063
    Abstract: A normally closed valve system for sealing off low pressure gas flow through a pipe. The valve system comprises an inflatable bladder which blocks relatively low pressure flow through the pipe and permits relatively high pressure flow through the pipe. In one form, the invention comprises a fail-safe bypass monitor and method for measuring air inleakage in a steam turbine. The monitor selectably bypasses low volumetric flow rates from a pipe for measurement and admits flow through the pipe whenever the flow rate exceeds a predetermined value.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: June 20, 1989
    Assignee: Westinghouse Electric Corp.
    Inventor: Michael Twerdochlib
  • Patent number: 4524616
    Abstract: A frusto-conical adjustable laminar flow bypass restrictor which is disposed within a conically tapering bore to form a conduit capable of maintaining laminar flow and adjustable to form annuli of varying thicknesses to allow proper sensor calibration over a wide range of flow rates.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: June 25, 1985
    Assignee: Tylan Corporation
    Inventors: Charles F. Drexel, Richard F. Blair
  • Patent number: 4519248
    Abstract: This invention provides a device for measuring a whole day urinary output, which includes an outer cylindrical container and an inner hollow tubular container positioned in the outer cylindrical container for proportionally sampling urine from the outer container. The inner container is vertically studded in the outer container and both containers are openably-closably communicated with each other at the bottom of the device and the inner container is openably-closably communicated with a reservoir.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: May 28, 1985
    Assignee: Kabushiki Kaisha Vine
    Inventors: Yoshihiko Torii, Osamu Tochikubo
  • Patent number: 4461173
    Abstract: A multi-range gas flowmeter having a primary gas flow passage and a secondary passage which houses the flow measuring device and which is connected to the primary passage at its inlet and outlet ends. A multi-position valve is located in the primary passage between the inlet and outlet ends of the secondary passage to divert all or a portion of the flow to the secondary passage, depending upon the value of the flow rate to be measured.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: July 24, 1984
    Assignee: Sierra Instruments, Inc.
    Inventor: John G. Olin
  • Patent number: 4445368
    Abstract: A air flow rate meter apparatus includes an air bypass line, which branches off from a filter housing on the air intake fitting of an internal combustion engine and discharges at a restriction of the air intake tube upstream of a throttle valve. An injection valve is disposed in the restricted section, ejecting fuel in the direction toward a throttle valve. The air bypass line extends vertically and has a first U-shaped section, the connecting portion of which is located at a lower level than its legs. A temperature-dependent resistor in the form of a hot wire or hot strip is disposed in the downstream leg of the first U-shaped section, so that during a burnoff procedure of the temperature-dependent resistor a flow is effected in the direction toward the mouth of the air bypass line, thus preventing the aspiration of a fuel-air mixture into the air bypass line and thus avoiding the danger of ignition with the possible destruction of the temperature-dependent resistor.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: May 1, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Jaihind S. Sumal
  • Patent number: 4429581
    Abstract: A multiphase flow measurement system determines the individual total flow rates of the water, gas, and oil components in a production fluid mixture from a subterranean well. The system includes a mass flow measurement unit which is coupled to the outlet of the well for measuring a total mass flow rate of the production fluid mixture. After the mass flow rate has been measured, a sample portion of the production fluid is supplied to a test separator tank system which is utilized to determine individual sample flow rates of the water, gas, and oil components in the sample portion of the production fluid. A central control unit is responsive to the individual sample flow rates and the mass flow measurement for determining the individual total flow rates of the water, gas, and oil components at the well head.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: February 7, 1984
    Assignee: Baker CAC, Inc.
    Inventors: Robert E. Furmaga, Kip B. Groans
  • Patent number: 4366719
    Abstract: A flow-rate meter has a cylindrical housing in which a counterweighted blade is pivotable on a shaft about the axis of the housing which is subdivided by a radial partition, an inlet port and an outlet port opening axially into this housing on opposite sides of the blade. The blade is magnetically coupled with a logarithmic scale and is provided with a logarithmic spring against which the force of the water flowing past the blade works.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: January 4, 1983
    Assignee: Kozuti Kozlekedesi Tudomanyos Kutato Intezet
    Inventors: Nandor Bohm, Janos Bohm, Robert Bohm
  • Patent number: 4315431
    Abstract: An adjustable flow divider for a mass flowmeter useful in shunting a portion of a fluid flow from a main supply line. The adjustable flow divider includes a porous tube (32) having a plurality of longitudinally extending projections (34) on the inner surface thereof. An externally threaded screw plug (36) is adjustably positioned within the porous tube forming a seal with the projections and exposing to fluid flow an area of porous material related to the position of the plug within the tube. The plug's position is adjustable from the outlet end of the flow divider while the divider is in use.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: February 16, 1982
    Assignee: Teledyne Industries, Inc.
    Inventor: Charles E. Hawk