Pilot Or Servo Type Motor Patents (Class 251/25)
  • Patent number: 11091903
    Abstract: A method and system having a water-flush toilet having a toilet bowl that is in fluid communication with a water source and is mounted with a sensor. The sensor includes a transmitter to transmit an ultrasonic signal and a receiver to receive an ultrasonic signal. The sensor may measure a Time of Flight (ToF) of the signal to obtain a ToF measurement. A microcontroller is electrically connected to the sensor and may receive and process the ToF measurement using an algorithm to determine a bowl status. The toilet also includes at least one water valve that is disposed between the bowl and the water source, and that is electrically connected to the microcontroller for instructing the at least one water valve to move from a first position to a second position for a duration of time, wherein the duration of time corresponds to the bowl status.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 17, 2021
    Assignee: AS AMERICA, INC.
    Inventors: David Grover, Mahendra Gunawardena, Chris Helmstetter, Verne Myers
  • Patent number: 11047504
    Abstract: A filling system includes a filling valve including an outlet opening and a sealing member movable relative between an outlet closing position, an outlet fully open position and at least one outlet partially open position. A linear actuator operatively connected to move the sealing member, the linear actuator including a first member movable between an extend position and a retract position, and a second member movable between an extend position, a first retract position and a second retract position. The first retract position of the second member is defined by contact with a distal portion of the first movable member when the first movable member is in its extend position and the second retract position of the second member is defined by contact with the distal portion of the first member when the first member is in its retract position.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: June 29, 2021
    Assignee: FEDERAL MFG. LLC
    Inventors: Cezary Mroz, Mario Bele, Alexandru Berceanu
  • Patent number: 10982808
    Abstract: A system for operating and/or lubricating a plurality of valves which are mounted on a number of christmas trees and which each include a hydraulic actuator which is operated by hydraulic pressure from a hydraulic pressure source and a lubricant inlet which is connected to an interior portion of the valve that is configured to receive a lubricant from a lubricant source. The system includes a plurality of control units, each of which is associated with a respective valve and each of which has at least one of a hydraulic pressure line which is connectable to the hydraulic pressure source and a lubricant line which is connectable to the lubricant source. Each control unit is operable to selectively connect the hydraulic pressure source to the hydraulic actuator to thereby operate the valve and/or to selectively connect the lubricant source to the lubricant inlet to thereby communicate lubricant into the interior portion of the valve.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 20, 2021
    Assignee: FMG Technologies, Inc.
    Inventors: James Michael Zerkus, Steven Dornell Raymond, Thiago Guimaraes Machado, Rajeev Rajan Pillai
  • Patent number: 10969802
    Abstract: A solenoid operated unit (100) for detecting and removing an undesired fluid (6) from a desired fluid (5) with diagnostic metering, comprises a unified solenoid operated pump and valve unit (70), a drainage path (40), an electrical detection system (60), a mecha-electro-magnetic detection system (80) and a junction box (190) interacting with an electronic control unit (90) comprising a PWM generator. A plunger (50) moves from up to down, a sweeping volume (28) with a cycle of a PWM electricity wave, while moving down the plunger (50) creates a negative pressure in a sweeping volume (28) and while moving up a positive pressure gets created in the sweeping volume (28) and a negative pressure gets created at a rear end (30) of a unified chamber (26), an air reliever (180) is provided for breathing.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 6, 2021
    Assignee: Rotex Automation Limited
    Inventor: Nirav R Shah
  • Patent number: 10920903
    Abstract: Disclosed is a water stop valve. A water inlet channel, a water outlet channel, and a water sealing surface are formed in a valve body. A valve stem has a middle portion movably disposed in the valve body and a lower portion mounted in a back-pressure hole of a water-plugging stopper. A back-pressure cavity is formed above the water-plugging stopper. A sealing end surface matching the back-pressure hole is formed on the valve stem. When in use, the valve stem drives the water plugging stopper to move downwards, the sealing end surface blocks the back-pressure hole, and the water plugging stopper blocks the water sealing surface, such that the water enters the back-pressure cavity, and the water pressure enables the water-plugging stopper to block the water sealing surface to stop the water. The water stop valve stops a water inlet valve from feeding in water in a timely manner.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: February 16, 2021
    Inventors: Yongmao Liu, Zipeng Zhang
  • Patent number: 10788056
    Abstract: A pilot valve assembly (10) includes a cylindrical connector (12) having a first end portion (16) with external threading (18) for engaging a threaded control socket (106) of a hydraulic valve (100), and a second end (20) with an array of teeth (22) arrayed around its edge. A circumferential slot (24) around connector (12) is spaced from second end (20). The assembly also includes a pilot valve (26) with a mechanism for controlling a pressure within the hydraulic control valve actuator chamber. Pilot valve (26) is formed with a recess (28) having a complementary teeth (30) for engaging teeth (22) of connector (12) in a range of angular orientations. A clamping arrangement engages slot (24) and clamps pilot valve (26) to second end (20) of connector (12), thereby fixing an angular orientation of the pilot valve.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 29, 2020
    Assignee: Bermad CS Ltd.
    Inventor: Zvi Weingarten
  • Patent number: 10634263
    Abstract: A valve device for liquids, especially for liquid plastic constituents of single- or multiple-constituent plastic mixtures, includes a valve housing with a liquid inlet and a metering valve, which has a discharge opening that can be closed by a closure element, a pressure control device acting on the liquid in the liquid inlet and comprising a control membrane which acts on the closure element. A shut-off diaphragm separates the pressure control device from the liquid inlet, and the pressure control device comprises a fluid-tight control chamber which is at least partially arranged in the valve housing, for storing a substantially incompressible fluid. A pressure generating device allows the control membrane to be subjected to pressure by the incompressible fluid arranged in the control chamber.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 28, 2020
    Assignee: HENKEL AG & CO. KGAA
    Inventors: Christian Schwabl, Guenther Baldauf, Mario Metzler
  • Patent number: 10605638
    Abstract: An assembly installable in an air conditioning and/or heating system of a room including a body (7) having an inlet opening (7a), an outlet opening (7z) and a channel (70) providing fluid communication between the inlet and outlet openings (7a, 7z). An orifice in the body (7) and shaped such that when a flow runs through the channel (70) between the inlet opening (7a) and the outlet opening (7z), a pressure difference is generated between the first region (7p) and the second region (7s) within the body (7), the first region (7p) being located upstream of the orifice, the second region (7s) downstream of the orifice. The assembly includes a meter (1) for detecting the pressure difference and a variator of at least one geometric feature of the orifice, the variator being able to arrange the orifice in different configurations, each corresponding to a respective geometric feature of the orifice.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 31, 2020
    Assignee: FIMCIM S.P.A.
    Inventors: Roberto Cimberio, Tiziano Guidetti
  • Patent number: 10487474
    Abstract: System and method for a lock valve for a hydraulic actuator. The lock valve includes a valve housing coupled to the hydraulic actuator. The valve housing defines a chamber in selective fluid communication with a hydraulic circuit. The lock valve includes a valve body received within the chamber and responsive to the hydraulic circuit to move to an unlock position in which the lock valve is unlocked. The valve body includes a rod having a first end and an opposite second end. The valve body includes a head coupled to the rod between the first end and the second end. The head is responsive to the hydraulic circuit to move the valve body to the unlock position, and in the unlock position, the first end of the rod extends outwardly from the valve housing to visually indicate the lock valve is unlocked.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 26, 2019
    Assignee: DEERE & COMPANY
    Inventors: Paul D. Marvin, Jeffrey R. Hochstatter
  • Patent number: 10436346
    Abstract: A pressure regulator has a pressure chamber connected to an inlet flow area which receives liquid flow. As liquid flows into a forward chamber of the pressure chamber, pressure is exerted on the forward face of the piston, which in turn causes the piston to slide longitudinally through the pressure chamber. A bypass fluidically connects the forward pressure chamber and rear pressure chamber such that as the piston slides into the rear pressure chamber pressure increases at the rear pressure chamber, which in turn forces the piston to move forwardly, thus regulating flow out of the pressure chamber. A hand wheel is configured to turn a movable plate located inside the pressure chamber, with the movable plate configured to impede the piston from moving rearwardly. Pressure sensors and vents with a pressurized air source may be used to keep the pressure within a desired range.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: October 8, 2019
    Inventor: Carroll G. Rowe
  • Patent number: 10400545
    Abstract: A system includes a flow control assembly having a first portion configured to be positioned within and coupled to a first passageway formed in a wellhead component and a second portion configured to be coupled to a second passageway formed in a body that is configured to be coupled to the wellhead component. An actuator of the second portion is configured to drive a valve member of the first portion into an open position to enable fluid flow across the flow control assembly.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 3, 2019
    Assignee: Cameron International Corporation
    Inventors: Brandon Blake Shirley, Kirk Paul Guidry
  • Patent number: 10260647
    Abstract: A valve includes a basic body, control spool, sealing ring, and control cover. The control spool is received in the basic body to be movable along a longitudinal axis. The basic body includes a counter-sealing surface, connecting channel, and tank channel having at least one first annular groove surrounding the control spool. The control cover and at least one end face of the control spool facing toward the longitudinal axis delimits, at least in part, a control space. The control cover includes a sealing surface that abuts the counter-sealing surface of the basic body. At least one of the sealing surface and the counter-sealing surface includes a sealing groove that surrounds the control space in ring-like fashion. The sealing ring is received in the sealing groove. The connecting channel opens out into the tank channel and into the sealing groove.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: April 16, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Burkhard Knoell
  • Patent number: 10203047
    Abstract: A balancing valve spool and a pressure regulating valve including the balancing valve spool. The balancing valve spool includes a valve rod having a first end and a second end. The valve rod defines a longitudinal axis that extends between the first end and the second end. The balancing valve spool also includes a piston sleeve fixed to the valve rod between the first end and the second end. The balancing spool valve further includes a fixing member arranged between the valve rod and the piston sleeve. The fixing member extends in a direction parallel to the longitudinal axis of the valve rod. Connecting the fixing piece to an actuator of the valve and arranging the fixing piece between the valve rod and the piston sleeve along the axial direction of the valve rod, guides the valve rod and simultaneously isolates inlet pressure and outlet pressure.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 12, 2019
    Inventor: Biao Zhou
  • Patent number: 10174489
    Abstract: A flush toilet apparatus for discharging waste by a jet pump action is disclosed. The flush toilet apparatus has an overflow portion configured to overflow a portion of flush water flowing from a throat pipe into a water conduit into a reservoir tank so that when the flow rate of water flowing inside the throat pipe exceeds a predetermined specified flow rate, the flow rate of water supplied from the water conduit to a bowl portion is reduced to less than a predetermined specified flow rate.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 8, 2019
    Assignee: TOTO LTD.
    Inventors: Ryoko Ishimaru, Tatsunari Harashima, Hidekazu Kitaura
  • Patent number: 10030785
    Abstract: A valve for a fuel cell serves to discharge a fluid in a fuel cell system to the outside or other locations of the fuel cell system. The valve is mounted with a pressure transmission unit which is connected between a valve flow path unit having an inner flow path for moving a fluid and a solenoid unit for generating power for opening and closing the inner flow path of the valve flow path unit, and transmits pressure between the valve flow path unit and the solenoid unit, so as to minimize an operating load of the solenoid unit by minimizing a pressure difference between the valve flow path unit and the solenoid unit, regardless of factors such as working pressure and a temperature in the fuel cell system.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: July 24, 2018
    Assignee: Hyundai Motor Company
    Inventors: Se Kwon Jung, Hyo Sub Shim, Bu Kil Kwon
  • Patent number: 9951875
    Abstract: A valve assembly includes a valve body having a valve body central axis. A valve actuator is operably connected to the valve body and is located such that a central axis of the valve actuator is nonparallel to the valve body central axis. A strut extends from the valve body to the valve actuator to support the valve actuator in a fixed relationship to the valve body. A pneumatically-actuated butterfly valve includes a valve body having a valve body central axis and a valve disc. A pneumatic actuator is located such that its central axis is nonparallel to the valve body central axis. The actuator includes a piston disposed in a cylinder, the piston operably connected to the valve disc. A strut extends from the valve body to support the actuator in a fixed relationship to the valve body.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 24, 2018
    Inventors: Francis P. Marocchini, Scott L. Lothian
  • Patent number: 9939080
    Abstract: A system, including a flow control system, including a valve, a first cylinder including a piston coupled to the valve, wherein the piston moves axially within the first cylinder to transition the valve between open and closed positions, a magnetorheological (MR) fluid within the first cylinder configured to axially move the piston, and an MR fluid device configured to magnetize the MR fluid to control axial movement of the piston.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 10, 2018
    Assignee: University of Houston
    Inventors: John M. Alred, Amnah Kudia, Javier Villarreal, Hilario Torres, Gangbing Song, Devendra Patil
  • Patent number: 9835264
    Abstract: A diaphragm valve for a vehicle includes: a diaphragm chamber having an upper chamber and a lower chamber divided by a diaphragm and communicating with a valve inlet and a valve outlet. The upper chamber has a nipple in which a fluid flows or from which a fluid is discharged, and the lower chamber has a chamber opening port at a lower end thereof. A valve rod is coupled to the diaphragm and extends toward the valve outlet. A valve head is provided at a position corresponding to an end of the valve rod and has a wider cross sectional area than the valve rod. The valve head closes the valve outlet when the valve is closed, and closes the chamber opening port when the valve is open.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: December 5, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Ho Chu, Hyung Jin Kim, Yong Hoon Kim, Teock Hyeong Cho
  • Patent number: 9541210
    Abstract: A pressure isolation device for a pipeline system is described. The pressure isolation device changes from an open position to a closed position when the pressure of a fluid flowing through the device exceeds a predetermined threshold pressure. In some embodiments, the predetermined threshold pressure is defined, in part, by a spring. The pressure isolation device provides a simple mechanical solution to protecting pipeline components from over-pressurization.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: January 10, 2017
    Assignee: Fluor Technologies Corporation
    Inventor: Pat F. Fetizanan
  • Patent number: 9372486
    Abstract: A flow meter, and related system and method are provided. The flow meter includes a coupler, a support member, an image sensor, a valve, and one or more processors. The coupler is adapted to couple to a drip chamber. The support member is operatively coupled to the coupler. The image sensor has a field of view and is operatively coupled to the support member. The image sensor is positioned to view the drip chamber within the field of view. The one or more processors are operatively coupled to the image sensor to receive image data therefrom and to the actuator to actuate the valve. The one or more processors are configured to estimate a flow of fluid through the drip chamber and to actuate the valve to control the flow of fluid through the drip chamber to achieve a target flow rate.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 21, 2016
    Assignee: DEKA Products Limited Partnership
    Inventors: Bob David Peret, Brian H. Yoo, Derek G. Kane, Dean Kamen, Colin H. Murphy, John M. Kerwin
  • Patent number: 9352722
    Abstract: An activation device for a protection device includes: a body with a chamber that has, respectively at first and second ends, a medium inlet opening to a medium storage and a valve opening, and an outlet opening for discharging the medium into the protection device between the first and second ends; a valve for opening and closing the valve opening for passage of the medium; and a piston that (a) includes a passage along a main extension axis, from a first surface thereof adjacent to the medium inlet opening, to a second surface thereof, larger than the first surface and adjacent to the valve opening, and (b) is movable in the chamber by the medium and as a function of the control valve position between a position in which the at least one outlet opening is closed and a position in which the at least one outlet opening is opened.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: May 31, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Peter Wasserman, Werner Nitschke, Elmar Vier, Raed Hamada, Horst Beling, Uwe Iben, Guenther Hohl, Stefan Woerz, Rudolf Heinz, Dirk Wolf, Martin Klein, Heiko Druckenmueller, Klaus Heyer
  • Patent number: 9279344
    Abstract: A poppet element of a valve is provided. The poppet element is movable relative to a valve seat of the valve and includes a balance chamber wall defining a balance chamber with a center body partially fixed relative to the valve seat, an upper head, a balance chamber holder having a coefficient of thermal expansion (CTE) that is matched with that of the upper head and a fastening element disposed to fasten the balance chamber holder to the upper head. The balance chamber holder is disposed between the center body and the balance chamber wall and configured to prevent thermal loading transfer from the balance chamber wall to the fastening element.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 8, 2016
    Assignee: General Electric Company
    Inventors: Abhishek Chowdhury, Guido Felice Forte, Jr., Senthil Kumar Vasudevan
  • Patent number: 9255648
    Abstract: A self-regulated valve assembly contains a valve body which, in the lower part, has an input section for a connection to a tank intended to contain a fluid under pressure and, in the upper part, an output for connection to a pipe system. A piston is movable in the valve body along a first axis between an open position, enabling the fluid to communicate between the input section and the output, and a closed position. A spring type module is coupled to the piston and to the valve body and interacts dynamically with the piston at least after an actuation of the valve and during the entire cycle of self-regulation of the valve, imposing a positioning of the piston between its open and closed position. The spring type module is positioned beneath the lower sealing section of the piston and the dimensions of the valve assembly can be considerably reduced.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: February 9, 2016
    Assignee: Siemens Schweiz AG
    Inventors: Stephane Beucher, Jeremy Degraeve, Erhard Magori, William Weugue
  • Patent number: 9228669
    Abstract: A fluid control valve includes: a valve main body including an inlet port and an outlet port, each being formed on opposite side surfaces; and a mounting plate attached to a lower end of the valve main body; wherein the valve main body has side surfaces located perpendicular to the opposite side surfaces and formed with locking protrusions, the mounting plate is formed with locking arms each extending from an upper end of the mounting plate, the locking arms each having a locking pawl facing and engaging with the protrusion, the valve main body is formed with an annular rib about an central axis on the lower end of the valve main body, and the upper end of the mounting plate is formed with a press-fit rib including a press-fit portion press-fitted in a wall surface of the annular rib.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: January 5, 2016
    Inventors: Hiroki Iwata, Hideyuki Takeda
  • Patent number: 9228674
    Abstract: Methods and apparatus to assemble actuators are described. An example method includes positioning a biasing element in a cavity defined by a housing of an actuator such that the biasing element is in an uncompressed state and at least a portion of the biasing element is to extend outside of the cavity beyond an end defined by the housing; compressing the biasing element to a compressed state until the portion of the biasing element extending outside of the cavity is positioned inside the cavity; coupling a cover to the end of the housing to capture the biasing element in the cavity; and maintaining the biasing element in the compressed state during the coupling such that the biasing element does not engage the cover.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: January 5, 2016
    Inventor: Daniel Martin Adams
  • Patent number: 9109719
    Abstract: This invention relates to a shut-off valve, and primarily to a valve for shutting-off the flow of a fluid such as a mains water supply to commercial premises or a domestic dwelling. The shut-off valve (10) comprises a diaphragm valve and a pilot valve (30). The diaphragm valve has an inlet (14) and an outlet (16), a valve member (26) and a valve seat (22), the valve member having a closed position in which it engages the seat and prevents the flow of fluid from the inlet to the outlet, and an open position in which the valve member does not engage the seat and fluid can flow from the inlet to the outlet. A first fluid conduit (36) connects the inlet of the diaphragm valve to the inlet of the pilot valve, and a second fluid conduit (40) connects the outlet of the pilot valve to the outlet of the diaphragm valve.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: August 18, 2015
    Assignee: SURESTOP LIMITED, a British Corporation
    Inventor: Martin Walter Dalton
  • Publication number: 20150144815
    Abstract: An irrigation valve has a valve body with an inlet passage, an outlet passage, a valve seat intermediate the inlet passage and the outlet passage and a control chamber exit or bypass passage terminating in a surface that defines a portion of the outlet passage, the valve body including at least one of a recess and a rib for hindering clogging of the bypass passage. Related methods for hindering clogging of the control chamber or exit bypass passage are also disclosed.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: Rain Bird Corporation
    Inventor: Samuel C. Walker
  • Publication number: 20150135543
    Abstract: A pneumatic valve assembly with a trigger for switching the pneumatic valve assembly between two or more valve operation modes is disclosed herein. The valve operational modes are determined by selection of fluid conduits by a trigger valve assembly of the pneumatic valve assembly which interconnects fluid conduits to a main valve, pilot valves and a pneumatic cylinder of a fluid powered pole saw and wherein a piston located in the pneumatic cylinder is mechanically coupled to a cutting blade of the pole saw and the trigger is operatively coupled to the trigger valve assembly.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventor: Ronald Alan Gatten
  • Publication number: 20150086431
    Abstract: The invention relates to a compressed-air device for controlling valves comprising, in a longitudinal direction, a first vane-type rotary cylinder (1) having a front face (2) as well as a back face (4), said front face (2) being provided with a rotatable head (3), and a second vane-type rotary cylinder (10) having a front face (11) and a back face, said first (1) and second (10) cylinders each being supplied with compressed air by means of a compressed air valve connected to two ports (7, 8; 14, 15) on each of said first and second cylinders.
    Type: Application
    Filed: February 28, 2012
    Publication date: March 26, 2015
    Inventors: Vincent Luc Antoine Tadino, Guillaume André René Villeret
  • Patent number: 8985548
    Abstract: A composite valve has a communication path communicating a first valve chamber with a second valve chamber, a second valve port communicating the second valve chamber with an outflow port, and a pilot passage communicating a back pressure chamber with the outflow port. In the case that a lift amount of a second valve body for a small flow rate control is equal to or less than a predetermined amount, the pilot passage is closed by a pilot valve body, and a first valve port is closed by a first valve body, thereby taking a small flow rate control state. In the case that the lift amount of the second valve body goes beyond the predetermined amount, the pilot valve body is moved up in conjunction with the upward movement of a valve shaft so as to open the pilot passage, thereby taking a large flow rate control state.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: March 24, 2015
    Assignee: Fujikoki Corporation
    Inventor: Yusuke Arai
  • Publication number: 20150069276
    Abstract: An actuator for actuating a plunger of a valve is provided. The actuator has an inlet and includes first and second hollow caps. A main actuation assembly is provided between the caps. The main actuation assembly includes a deformable diaphragm; first and second chambers, static sealing elements and a main piston movable between actuated and unactuated positions. A biasing mechanism biases the piston in the unactuated position. When pressurized gas is flown through the inlet and/or drawn from the outlet of the actuator, the first chamber expands, moving the main piston from the unactuated position to the actuated position, an actuating stem connected to the main piston thereby sliding within a channel provided in the bottom cap. Stackable actuating assemblies can also be used between the caps. Using static sealing elements advantageously avoids friction between moving parts.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 12, 2015
    Inventor: Yves Gamache
  • Patent number: 8973610
    Abstract: A pneumatic control valve includes a first valve body, a pushing block, a rotating block, a second valve body, an end cover, and a piston. The first valve body defines a first gas inlet and a receiving hole. The first valve body forms a plurality of guiding ribs evenly positioned on the inner surface of the receiving hole away from the first gas inlet, and each of the guiding ribs forms an inclined surface at a distal end thereof. The pushing block and the rotating block are slidably received in the receiving hole. The second valve body is connected to an end of the first valve body adjacent to the receiving hole of the first valve body. The end cover is fastened on an end of the second valve body away from the first valve body. A pneumatic control system using the pneumatic control valve is also provided.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 10, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hai-Feng Ma, Xiao-Bing Xu
  • Publication number: 20150041688
    Abstract: An electro-hydraulic system for driving a large-scale rotary motion valve supplied by a solar low-capacity power. A step motor (2) and an oil pump (3) are in turn driven by a low-capacity solar power supply (1). An oil tank (5), the oil pump, a check valve (6), a T-connector (7) and a liquid accumulator (10) are in turn arranged on an oil storage pipeline (4). An oil inlet pipeline (16) is connected to the rest of the ports of the T-connector. An oil inlet of a three-position four-way reversing solenoid valve (12) is connected to the oil inlet pipeline. Two ends of an oil return pipeline are connected to an oil return port of the reversing valve and an oil return port of the oil tank, respectively. Each of two oil outlets of the reversing valve is respectively connected to an oil port of a single-chamber cylinder via a pipeline. The outer ends of the piston rods of cylinders A and B are rigidly connected together to form one piston rod (134).
    Type: Application
    Filed: April 19, 2013
    Publication date: February 12, 2015
    Inventor: Baojun LIU
  • Publication number: 20140284507
    Abstract: Auxiliary valve controlled self-cleaning main valve with mechanical operating means. The valve body (1) of the main valve has an inlet (2) and an outlet (3) interconnected through a flow-through opening, and a movable piston (6) having a main closing element (8) at one of its sides and a brake O-ring (9) at its other side. In the control chamber (5) an auxiliary valve (4) with a control valve stem (7) is provided. Between the piston (6) and the auxiliary valve (4) a compressible spring (12) is positioned. The mechanical operating means is provided with a wedge travel path and adapted to press the control valve stem (7) when force is applied externally and to keep it pressed in without applying external force, further it is adapted to release it when force is applied externally and to keep it released without applying external force.
    Type: Application
    Filed: March 30, 2012
    Publication date: September 25, 2014
    Applicant: BERY INTELLECTUAL PROPERTIES Szeliemi Tulajdonjogo kat Hasznosito es Kezelo Korlatolt Felelossoo
    Inventor: József Bereznai
  • Patent number: 8820703
    Abstract: A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: September 2, 2014
    Inventors: John Leslie Johnson, James G. Johnson
  • Patent number: 8814130
    Abstract: A self-regulating valve controls the flow of high pressure gas discharging from a gas cylinder in a fire suppression system in response to a detection of a fire within a protected space by a two-step process which reduces the pressure rise within the protected space upon release of the fire suppression gas into the protected space.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: August 26, 2014
    Assignee: UTC Fire & Security Corporation
    Inventors: Muhidin A. Lelic, Fanping Sun, Zaffir A. Chaudhry, Tony George, Lyle H. Hamilton, Robert G. Dunster, Rob J. Lade, Paul C. Upton, Mark Williamson
  • Patent number: 8757582
    Abstract: A valve assembly for sealing a port of a housing includes a primary sealing member and a secondary sealing member mounted to a valve body. Valve body includes a lower body with an upper portion depending from the body having a cross sectional diameter less than the upper body, and a lower portion depending from the upper portion having a cross sectional diameter less than the upper portion. The primary member includes apertures and is slidably mounted to the upper portion, and the secondary member is mounted to the lower portion. In a closed position the secondary member seals against the primary member, and the primary member seals against the port. Downward movement of the valve body unseals the secondary member from the primary member allowing venting through the apertures, and then unseals the primary sealing member from the port allowing full venting through the housing.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: June 24, 2014
    Assignee: Knappco Corporation
    Inventor: Randy Donald Robinson
  • Patent number: 8733387
    Abstract: A portable remote controlled fire-fighting valve has a central chamber in a main valve body, an inlet that connects to a hydrant, an outlet that connects to a fire hose, a valve mechanism that has a seating surface that seats against part of the device to open and close a flow channel through the central chamber, and a remote controller that enables an operator to selectively open and close the flow channel. The valve mechanism uses a piston that is mounted for axial movement within the central chamber. The piston has an annular wall that slides against an outer edge of a lateral chamber surface that is fixed in position within the main valve body. A spring biases the piston to the closed position. In the open position, water from the inlet flows around the piston, over its peripheral surface, to the outlet. A pressure chamber is formed between a lateral surface that is fixed in position within the valve body and a movable interior surface on the piston.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 27, 2014
    Assignee: Task Force Tips inc.
    Inventors: David J. Kolacz, Stewart G. McMillan, Scott W. Akins, Timothy S. Miller
  • Publication number: 20140117263
    Abstract: In a method or device for operating a pneumatic drive system for actuating a control valve, a pneumatic working chamber is loaded with pneumatic pressure in order to move the control valve into a desired position.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Inventor: Frank Valentin-Rumpel
  • Publication number: 20130187068
    Abstract: A hydraulic valve arrangement includes a manifold and a poppet. The manifold defines a bleed ring that surrounds a bore and has an angled surface. The manifold also defines an annular recess around the bleed ring that provides a relief region. The poppet is slidably disposed within the bore and is structured to close a main flow path between the first and second ports when the poppet is in a first position and the poppet being structured to at least partially open the main flow path when the poppet slides away from the first position. The poppet defines an angled contact surface that is configured to engage the angled contact surface of the bleed ring when the poppet is in the first position.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 25, 2013
    Applicant: Eaton Corporation
    Inventor: Eaton Corporation
  • Publication number: 20130126002
    Abstract: According to one embodiment, a system and process for the equalization of pressures of a flow stream across one or more valves is provided. A process circuit having clean non-abrasive fluid and at least one slave cylinder for transmitting pressure to a process flow stream is employed.
    Type: Application
    Filed: May 5, 2011
    Publication date: May 23, 2013
    Inventor: Christopher Francis Bathurst
  • Patent number: 8393344
    Abstract: The microvalve device includes a pilot microvalve and a pilot operated spool valve. The pilot microvalve includes a pilot input orifice; a pilot output orifice, at least one of the pilot input orifice and the pilot output orifice having a cross-section flow area that changes as the pilot microvalve is actuated; and a passageway providing fluid communication between the pilot input orifice and the pilot output orifice. The pilot operated spool valve includes a spool having a surface in fluid communication with the passageway; a spool input port; and a spool output port, at least one of the spool input port and the spool output port having a cross-section flow area that changes as the spool is actuated. The spool valve is operable by the pilot microvalve such that a ratio of the cross-sectional flow area of the spool input port to the spool output port will substantially equal to a ratio of the cross-sectional flow area of the pilot input orifice to the pilot output orifice.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: March 12, 2013
    Assignee: DunAn Microstaq, Inc.
    Inventor: Harry A. Hunnicutt
  • Publication number: 20130056657
    Abstract: A latch valve includes a first port containing line pressure, a second port containing control pressure, a third port located between the first and second ports, alternately connecting the first and second ports to a transmission control element, and a fourth port containing control pressure that tends to close the second port and open the first port in opposition to a spring force.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 7, 2013
    Inventors: Robert O. Burkhart, John Butwin, Derek Kinch, Hrudaya Mahapatro, Wei Zhuang, Anthony Koenings
  • Patent number: 8387659
    Abstract: A spool valve assembly includes a spool that is moveable by differential pressure across the spool.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 5, 2013
    Assignee: DunAn Microstaq, Inc.
    Inventor: Harry A. Hunnicutt
  • Publication number: 20120280152
    Abstract: Exemplary embodiments are direct to a valve system for actuating the piston of a piston cylinder arrangement for a hydraulic or fluid device, and for actuating the piston cylinder arrangement for actuating the movable contact piece of a high-voltage circuit breaker. The system including a main control valve arrangement, having two 2/2-way valves used as main valves and which can be controlled by a pilot control valve arrangement. The main control valve arrangement directs a path for the high pressure fluid to the chamber above the piston and connects the chamber to a low-pressure tank for discharging the chamber above the piston. Two 2/2-way valves which form the pilot control valve arrangement are associated with the main control valve arrangement such that the 2/2-way valves direct or supply either a high-pressure control pressure or a low-pressure control pressure to the main control valve arrangement.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 8, 2012
    Applicant: ABB TECHNOLOGY AG
    Inventors: Matthias Schmidt, Franz-Josef Körber
  • Publication number: 20120273700
    Abstract: Exemplary embodiments relate to a valve arrangement for actuating a piston cylinder arrangement, that includes a pilot control valve arrangement and a main control valve arrangement, wherein both the pilot control and main control valve arrangement include a 3/2-way valve as a pilot control valve and as a main control valve. Each valve has a control-pressure, high-pressure, and low-pressure connection. Said connections are connected to each other such that the main control valve is controlled via the control-pressure connection of the pilot control valve and the pressures on the control-pressure connection of the pilot control valve and the pressures on the control-pressure connection and on the high-pressure connection of both valves, are statically inverted relative to each other. The 3/2-way valves are designed as seat valves and are only hydraulically connected to each other.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 1, 2012
    Applicant: ABB TECHNOLOGY AG
    Inventors: Matthias SCHMIDT, Franz-Josef KÖRBER
  • Patent number: 8290631
    Abstract: Example methods and apparatus to arbitrate valve position sensor redundancy are disclosed. A disclosed example method comprises measuring a first value representative of a position of a valve, measuring a second value representative of the position of the valve, computing a first estimated position of the valve, selecting one of the first and second values based on the first estimated position, and generating a first valve control signal for the valve based on the selected one of the first and second values.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: October 16, 2012
    Assignee: Emerson Process Management Power & Water Solutions, Inc.
    Inventors: Thomas Sweeney, Scott Shaw, Peter Nicholas Francino
  • Patent number: 8256738
    Abstract: A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: September 4, 2012
    Inventors: John Leslie Johnson, James G. Johnson
  • Patent number: 8245727
    Abstract: A multistage, pilot-operated pressure regulator for pressure adjustment and/or back pressure relief and/or differential pressure or flow control applications comprises a diaphragm and a plurality of plates, including a throttle plate and at least one flow control plate. In at least one embodiment, the throttle plate includes a sloped upper surface for contacting the diaphragm, and a plurality of apertures residing within a plurality of concentric rows. In addition, in at least one embodiment, at least one flow control plate is positioned downstream of the throttle plate, the at least one flow control plate including a plurality of apertures residing within a plurality of concentric rows. A method of controlling the flow of fluid in a conduit is also provided.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: August 21, 2012
    Inventors: Richard J. Mooney, Pamela Mooney, legal representative
  • Publication number: 20120205565
    Abstract: A hydraulic pilot control arrangement for a spool valve is provided, wherein the spool of the spool valve is biased towards a central position. The arrangement includes a first and a second pilot hydraulic line connected to opposite sides of the spool of the spool valve and a pilot pressure regulating arrangement is provided for selectively establishing or removing a pilot pressure in each of the first and second lines. The arrangement includes a damping device including a chamber divided into a first and a second pressure compartment by a sliding piston, the first and second pressure compartments being connected respectively to the first and second pilot hydraulic lines, and the piston is biased towards a rest position in the chamber.
    Type: Application
    Filed: October 26, 2009
    Publication date: August 16, 2012
    Inventors: Christian Balmonet, David Lazzaro