Flow Rate Responsive Patents (Class 137/87.03)
  • Patent number: 9010368
    Abstract: An apparatus comprises a body, a first poppet, and a second poppet. The body comprises a first fluid channel and a second fluid channel. The first fluid channel and the second fluid channel are operable to be fluidly isolated from each other. The first poppet is positioned in the first fluid channel, and the first poppet is operable to be moveable within the first fluid channel. The second poppet is positioned within the second fluid channel, and the second poppet is operable to be moveable within the second fluid channel. The first poppet and the second poppet are operable to be mechanically coupled together such that movement of the first poppet within the first channel is operable to cause sympathetic movement of the second poppet within the second fluid channel.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 21, 2015
    Assignee: Precision Temp, Inc.
    Inventor: Gerry C. Wolter
  • Publication number: 20150083233
    Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: Loren C. SMITH, Douglas S. Perry, William Hopper
  • Publication number: 20140124045
    Abstract: A fluid injection system for dispensing a solution into a fluid flow in a flow line, the fluid injection system including a storage tank having product to be dispensed therein; an inlet connection diverting fluid from the flow line into the tank; an outlet connection returning a mixture of fluid/product back into the flow line; a metering gauge in fluid communication with the inlet connection measuring water flowing into the tank; and a metering head connected to the storage tank and having multiple ports for connection to the inlet connection depending on whether the product to be dispensed is in liquid dry form. The inlet connection includes an inlet probe having an opening defined by an arc at a downstream side. The outlet connection includes an outlet probe having an opening having an angled cut facing downstream, such that a pressure differential is created between the inlet and outlet probes.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: EZ-FLO Injection Systems, Inc.
    Inventors: Dan Gilmore, Jeff Gilmore
  • Publication number: 20130292312
    Abstract: A balancing method and a balancing device (100, 101, 200, 201, 301, 303) for determining a fluid balance between a flow quantity in a first flow path (FW1) and a flow quantity in a second flow path (FW2) are disclosed. The disclosed balancing device (100, 101, 200, 201, 301, 303) comprises the following elements: a differential flow measuring unit (D) for measuring the differential flow between a flow in the first flow path (FW1) and a flow in the second flow path (FW2), a branch from one of the two flow paths (FW1, FW2) for diverting fluid from one of the two flow paths into the other flow path (W), a device for setting the flow quantity (P11, P12) in the additional flow path, which can be controlled in such a way that the measured differential flow fulfills a predetermined condition, and with a device (K) for determining the flow quantity in the additional flow path as a measure of the fluid balance.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 7, 2013
    Inventor: Fresenius Medical Care Deutschland GmbH
  • Patent number: 8453647
    Abstract: A device for passive pressure relief and for reducing the volume flow for an electromechanically driven medical gas delivery means (50) in a medical device for respirating a patient (60) with a pressure relief unit (1) with a first and second gas port (2, 3), with a relief valve (4), with a pressure relief outlet (8) with an equalization space (9) and with a nonreturn valve (11) and a valve disk (5), which is arranged in the relief valve (4) and is maintained in a position relative to a valve seat (7) via a bellows (60). The surfaces (51, 52) facing the first and second gas ports (2, 3) have different areas, so that the relief valve (4) opens as soon as an operating pressure (23) at the first gas port (2) exceeds a prevailing (stored) pressure level (24) in the equalization space (9).
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: June 4, 2013
    Assignee: Dräger Medical GmbH
    Inventor: Renè-Christian Caspary
  • Patent number: 8342199
    Abstract: An apparatus for dispensing liquid fuel comprises a plurality of inlet valves, each connected in-line with a respective inlet pipe in fluid communication with a respective source of a specific liquid fuel. A plurality of outlet valves are also provided, each connected in-line with a respective outlet pipe. A respective fuel hose is in fluid communication with each of the outlet pipes. The apparatus further comprises a coriolis flow meter located between the inlet valves and outlet valves, the coriolis flow meter providing a flow signal indicative of flow therethrough. A controller is operative to receive the flow signal and control the valves such that selected inputs of specific liquid fuels are dispensed to at least one of the fuel hoses. In accordance with an exemplary embodiment, the selected inputs of specific liquid fuels may include individual liquid fuels and blended combinations thereof.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: January 1, 2013
    Assignee: Gilbarco, Inc.
    Inventors: Jonathan E. Deline, Ryan C. Garrett, Michael C. Liebal, Edward Payne, Brent K. Price, Rodger K. Williams, Zhou Yang
  • Publication number: 20120145255
    Abstract: A jet nebulizer capable of producing a small particle mist for injection into any existing whole room/house/building air distribution system. The device pumps liquid scent from a bulk container through a supply line. The unit is turned on, a flow switch is closed, power is applied to a timer and a solenoid, opening the solenoid and starting the timer. Pressure in the supply line drops and closes the pressure switch which turns the pump on, forcing the liquid scent through a nebulizer nozzle into the air handling system. The pump runs according to the timer, and will continue to run until the timer shuts the solenoid valve. Once the timer shuts the solenoid off pressure builds in the supply line. The pressure opens the water pressure switch which turns the pump off.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Inventors: William J. Spano, JR., Michael E. Hart
  • Publication number: 20120138162
    Abstract: A hand holdable applicator for delivering solutions and materials in a pressurized fluid system. Additives of solutions or materials are contained in replaceable, collapsible cartridges or liners, responsive and compressible to external fluid pressure regulated by the operator. Upon compression, additives combine with variably controlled fluid ingress and are mixed before dispersing through a nozzle having varying spraying configurations. The applicator may hold a plurality of cartridges, and additives may be administered separately or in combination.
    Type: Application
    Filed: February 8, 2012
    Publication date: June 7, 2012
    Inventor: Michael S. Beaulieu
  • Publication number: 20120138157
    Abstract: Apparatus and methods for providing fluid such as water at a controlled temperature. In some embodiments, hot and cold fluid is provided to a thermostatically controlled mixing valve, which then provides fluid at a mixed temperature to a plumbing system. The thermostat provides a first loop for closed-loop control of fluid exit temperature, and preferably there is a second, electronically controlled closed loop for adjusting the temperature of fluid exiting the valve. In yet other embodiments the electronic control loop is fail-fixed, such that a loss of electrical communication to the actuator results in the actuator maintaining its last position. In yet other embodiments there is a system including a flow sensor and a recirculation pump such that the temperature of the fluid exiting the valve cannot be adjusted if there is insufficient flow, or if the pump is actuated.
    Type: Application
    Filed: November 4, 2011
    Publication date: June 7, 2012
    Applicant: MAGARL, LLC
    Inventors: Robert B. Eveleigh, Thomas R. Baker, Cameron Joseph West
  • Patent number: 8043556
    Abstract: An ablutionary installation including a mixing valve having respective inlets for hot and cold water and an outlet for temperature controlled water, a temperature sensor for monitoring outlet water temperature and providing a signal representative of the outlet water temperature to an electronic controller, a user interface permitting selection of outlet water temperature up to a pre-determined temperature, the electronic controller being operable to compare the selected and sensed outlet water temperatures for controlling the mixing valve to adjust the ratio of hot and cold water delivered to the outlet according to the selected outlet water temperature, and apparatus for initiating a disinfection cycle to deliver water to the outlet at a temperature higher than the pre-determined temperature, wherein the initiating apparatus includes an operating sequence with at least two inputs.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: October 25, 2011
    Assignee: Kohler Mira Limited
    Inventors: Kevin Peel, Timothy James Shepherd, Geoffrey Hawke Whale, Paul Vigars, Nicholas John Beck
  • Publication number: 20110155259
    Abstract: The invention relates to a control arrangement having a pressure limiting valve or a proportional throttle valve, having a control device allowing volume flow control. In addition to the pressure limiting function, an identical valve can thus also be used as a flow control valve for high volume flows.
    Type: Application
    Filed: May 12, 2009
    Publication date: June 30, 2011
    Inventors: Wolfgang Volpert, Georg Schoppel
  • Publication number: 20110088787
    Abstract: A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.
    Type: Application
    Filed: June 3, 2009
    Publication date: April 21, 2011
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventor: Timothy R. Lynn
  • Patent number: 7881829
    Abstract: This invention provides a mass flow controller that can prevent a flow rate change due to a pressure change without sacrificing the speed of response to a change of a flow rate setting value and can be used in a system that can generate a crosstalk. In order to provide the mass flow controller, the mass flow controller has: a control section 5 that calculates an opening control signal to be supplied to a flow rate control valve based on a predetermined calculation formula including at least a flow rate measurement value and a flow rate setting value as parameters and outputs the opening control signal; and a pressure sensor section 4 that measures pressure of a fluid on the upstream side or the downstream side of a flow rate sensor section 2 and outputs a pressure detection signal indicating the pressure value.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: February 1, 2011
    Assignee: Horiba Stec Co., Ltd.
    Inventors: Yutaka Yoneda, Akito Takahashi
  • Publication number: 20100212752
    Abstract: A system that shuts down water flow to a water heater of a residence or commercial building upon detecting a leak that includes first and second valves, and first and second valve actuators that operate to control the first and second valves, respectively. Preferred systems also include first and second sensors that measure the flow of water into and out from water heaters, respectively. Preferred systems further include controllers that receive signals from each of the first and second sensors. Such controllers controllably communicate with each of the first and second valve actuators to close the first and second valves, respectively, when a flow difference is detected that is greater than a predetermined threshold.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 26, 2010
    Inventor: Giovanni Fima
  • Publication number: 20100139782
    Abstract: An apparatus for dispensing liquid fuel comprises a plurality of inlet valves, each connected in-line with a respective inlet pipe in fluid communication with a respective source of a specific liquid fuel. A plurality of outlet valves are also provided, each connected in-line with a respective outlet pipe. A respective fuel hose is in fluid communication with each of the outlet pipes. The apparatus further comprises a coriolis flow meter located between the inlet valves and outlet valves, the coriolis flow meter providing a flow signal indicative of flow therethrough. A controller is operative to receive the flow signal and control the valves such that selected inputs of specific liquid fuels are dispensed to at least one of the fuel hoses. In accordance with an exemplary embodiment, the selected inputs of specific liquid fuels may include individual liquid fuels and blended combinations thereof.
    Type: Application
    Filed: June 3, 2009
    Publication date: June 10, 2010
    Inventors: Jonathan E. Deline, Ryan C. Garrett, Michael C. Liebal, Edward Payne, Brent K. Price, Rodger K. Williams, Zhou Yang
  • Publication number: 20100101659
    Abstract: A fuel transfer system for use with a motor vehicle of the type having a fuel tank and a fuel sending unit in the fuel tank for pumping fuel thorough a fuel line to the vehicles engine when the engine is idling where the fuel transfer system allows fuel in the fuel tank to also be delivered to an auxiliary fuel vessel such as another fuel tank, a fuel container, or an engine powered machine is provided. A fuel fitting for connecting the fuel line between a vehicle's fuel tank and engine to a fuel transfer system that can deliver fuel to an auxiliary fuel vessel is also described.
    Type: Application
    Filed: December 3, 2008
    Publication date: April 29, 2010
    Inventors: Matthew Trattner, Michael Goetze, Michael McAvey, P.J. Ricatto, Chris Smith
  • Publication number: 20090250117
    Abstract: A liquid management system comprising a first chamber that has a first boundary wall, and a second chamber that has a second boundary wall. The second chamber has a base surrounded by the second boundary wall and the second boundary wall is within the first boundary wall. The second boundary wall height is lower than the first boundary wall height. The liquid management system also comprises a liquid level control module for controlling i) a first level of the liquid within the first chamber, and ii) a second level of the liquid within the second chamber.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 8, 2009
    Applicant: CRYSTAL FOUNTAINS INC.
    Inventors: Michael Poos, Zachary Ficyk
  • Publication number: 20080295892
    Abstract: A mass flow controller has: a flow rate sensor section that measures the flow rate of a fluid and outputs a flow rate measurement signal indicating the measurement value; a flow rate control valve disposed upstream or downstream of the flow rate sensor section; a calculation section that calculates a feedback control value to the supplied to the flow rate control valve by performing at least a proportional calculation on the deviation of the flow rate measurement value indicated by the flow rate measurement signal from a flow rate setting value; and an opening control signal output section that generates an opening control signal based on the feedback control value and outputs the opening control signal to the flow rate control valve. The function used for calculating the gain value in the proportional calculation differs between a changing period and a stable period.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Applicant: HORIBA STEC, CO., LTD.
    Inventors: Akito Takahashi, Yutaka Yoneda
  • Patent number: 7287540
    Abstract: Disclosed is a method of reducing drag in a fluid stream. The method includes admixing the components of a drag reducer to form an incipient drag reducer and injecting the incipient drag reducer into the fluid stream wherein the drag reducer components are admixed at the site of the fluid stream.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: October 30, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Paul Hammonds, Vladimir Jovancicevic, C. Mitch Means, David Green
  • Patent number: 7156115
    Abstract: A flow control system (10) is provided in which a flow control valve (12) is controlled by a control system (14). The control system (14) measures a flow rate or temperature of a fluid flowing through the flow control valve (12) and adjusts the flow control valve (12) to achieve a desired flow rate. The flow control valve (12) includes an electromagnetically adjustable spool (26).
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: January 2, 2007
    Inventors: William F. Everett, David C. Sudolcan
  • Patent number: 6609534
    Abstract: A multi-additive injection system for injecting required amounts of different additives to flowing fuel in a fuel line (6) comprises a number of additive injection sub-systems (1, 2, 3 and 4). Each sub-system includes a source of additive (7), a pump (13) to deliver additive from the source (7) to the fuel line (6), and an additive meter (21) to measure an amount of the additive being delivered to the fuel line (6) by the pump (13). The multi-additive injection system further includes a meter to measure the amount of fuel flowing through the fuel line (6) and a control device such as a computer to control the pump (13) of each sub-system to adjust the amount of additive being delivered by each pump, should the amount metered by the meters (21) deviate.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: August 26, 2003
    Assignee: Fluid Transfer Limited
    Inventors: Brian Frederick Beaney, Bruno Peter Paul La Terra
  • Patent number: 6567710
    Abstract: A fluid supply system controller includes a processor, a memory subsystem and fluid application code. The memory subsystem is coupled to the processor and stores data and instructions. The fluid application code causes the processor to perform the steps of receiving a workpiece width, a workpiece feed length, a workpiece stroke rate, a workpiece fluid thickness and a calibrated flow rate. The fluid application code then causes fluid to be periodically provided to the workpiece for a fixed duration responsive to the received workpiece width, workpiece feed length, workpiece stroke rate, workpiece fluid thickness and calibrated flow rate.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: May 20, 2003
    Inventor: Charles W. Boelkins