Patents Examined by John Rivell
  • Patent number: 8991418
    Abstract: A pressure relief valve includes a bonnet threadedly secured to a pressure vessel, a floating device in the pressure vessel, a relief assembly, an actuator secured to the bonnet and communicating with the bonnet, a biasing element put on a stem and biased between a tubular member and a conic member, and a safety valve. The hollow cylinder is slidable in a space defined by the tubular member and a hollow, cylindrical actuating member. The stem is slidably disposed in the tubular member. Pressurized fluid enters a conic opening via an inlet connector, a first channel, a Venturi tube, and a second channel to push the tubular member so as to disengage a latch from a hook to release the pressurized fluid.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: March 31, 2015
    Inventor: Wan-Ju Lin
  • Patent number: 8991417
    Abstract: The present invention relates to a method of controlling pressure maintenance equipment for a cooling and heating system. More particularly, the present invention relates to a method of operating and controlling, under optimum conditions, pressure maintenance equipment with multiple sensors so as to check for irregularities in the sensors which measure the same physical parameter. In the present invention, measurement values of two or more sensors are used to detect whether an abnormality has occurred in any sensor. If a sensor is determined to be abnormal, a measurement value of the abnormal sensor is excluded when determining a reference control value. Thereby, the pressure can be precisely and reliably controlled in response to actual conditions of the system.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 31, 2015
    Assignee: Flowtech Co. Ltd.
    Inventors: Jae Gu Yang, Ji Suk Yang, Sang Ki Oh
  • Patent number: 8991428
    Abstract: In a preferred embodiment, the present solenoid control valve is provided which has a valve sleeve having upper and lower feedback chambers which are connected to control pressure by an exterior surface longitudinal slot or slots.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: March 31, 2015
    Assignee: BorgWarner Inc.
    Inventors: Garrett R. Holmes, Michael E. Jones, Jeffrey J. Waterstredt
  • Patent number: 8991416
    Abstract: A shuttle valve 8 includes a valve body 9, a shuttle 10, and an actuator mechanism 11. The shuttle valve 8 includes inlet ports 37 and 39 and outlet port 40. The shuttle 10 moves between first and second at rest positions to selectively connect one of the inlet ports to the outlet port and isolate the other inlet port from the outlet port. The actuator mechanism 11 includes first and second springs 63 and 66 and moves the shuttle 10 from one of its positions to another when a set pressure differential is attained between the inlet ports. The actuator mechanism 11 moves a partial stroke distance to move the shuttle 10 between its at rest positions and moves a full stroke distance to additionally open fluid communication between one of the inlet ports and the shuttle 10.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: March 31, 2015
    Assignee: Parker-Hannifin Corporation
    Inventor: Kevin Bresnahan
  • Patent number: 8991423
    Abstract: Fuel interface modules that can be used in automotive vehicle fuel systems can include a body that defines a fuel channel and a plurality of ports through which fluid communication with the fuel channel can be established. Some modules include a check valve, a shutoff valve, and a coalescing filter assembly that are each coupled with a separate port. The fuel modules can be quickly installed and can eliminate many of the installing materials typically associated with automotive vehicle fuel systems.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: March 31, 2015
    Assignee: Go Natural CNG, LLC
    Inventor: Matthew M. Matsukawa
  • Patent number: 8978699
    Abstract: A status assembly to provide visual and electronic indication of the position (open, closed, in-between) of the ram of a ram-type blowout preventer (BOP). The assembly is capable of coupling with a hydraulic motor that can be used to open and close the ram locks. The status assembly includes a rotatable element protruding from the BOP, a gear rotatable by the rotatable element, and an indicator that indicates the rotation position of the rotatable element and thus the linear position of the BOP ram. Some embodiments can also include a sensor that outputs an electronic signal to the system operator and can be incorporated into the main display for the BOP control system. This device is able to give immediate feedback to operators and to indicate whether each ram has achieved its intended travel.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 17, 2015
    Assignee: Cameron International Corporation
    Inventors: Andrew Jaffrey, Gerrit M. Kroesen, John Mangan
  • Patent number: 8978698
    Abstract: A blowout preventer for sealing a tubular of a wellbore is provided. The blowout preventer has a housing having a bore therethrough for receiving the tubular, at least one ram slidably positionable in the housing (each of the rams having a ram block for sealing engagement about the tubular), an actuator for selectively driving the ram block (the actuator comprising a piston slidably positionable in a cylinder), and a monitor for detecting the piston therein. The monitor has a visual indicator on an exterior of the cylinder. The visual indicator is operatively coupled to the piston for displaying a position of the piston as the piston travels within the cylinder whereby a position of the ram may be determined.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: March 17, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
  • Patent number: 8979064
    Abstract: A positioner includes a shift magnitude calculating portion that calculates a shift magnitude from the equilibrium state of a pilot relay, from an input air pressure that is inputted into the pilot relay and an output air pressure that is outputted from the pilot relay. A control calculating portion determines a control signal from an actual opening signal, an opening setting value, and the shift magnitude from the equilibrium state of the pilot relay that is calculated by the shift magnitude calculating portion, and outputs it to the electropneumatic converter.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: March 17, 2015
    Assignee: Azbil Corporation
    Inventors: Takashi Nomiyama, Masaki Namikawa
  • Patent number: 8978701
    Abstract: An energy-saving valve includes a spool-driving unit which changes the position of a spool to a position at which compressed air is discharged from a first output port without pressure control and includes a pressure control unit which changes the position of the spool to a position at which compressed air is discharged from a second output port in a predetermined pressure level due to pressure control. The pressure control unit includes a pressure control piston, a pressure-receiving surface which enables air pressure in the second output port to act on the pressure control piston, a cylinder chamber, a pressure control channel, and an elastic member which applies biasing force to the pressure control piston in a direction opposite to the action of air pressure on the pressure-receiving surface to determine pressure.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: March 17, 2015
    Assignee: SMC Corporation
    Inventors: Shinji Miyazoe, Katsuyuki Senba, Takashi Murakami
  • Patent number: 8973606
    Abstract: The present invention is one that prevents standard gas from remaining in a standard gas line to prevent a concentration of standard gas from being reduced due to adsorption, modification, or the like, and has: a diluent gas line provided with a diluent gas flow rate controlling mechanism; a standard gas line provided with a standard gas flow rate controlling mechanism; an output gas line joined by the diluent gas line and standard gas line and outputs the standard gas having a predetermined concentration; an exhaust gas line connected to an upstream side of the standard gas flow rate controlling mechanism in the standard gas line and provided with an on/off valve and a flow rate control part; and a control part that, depending on a flow rate of the standard gas flowing through the standard gas line or the type of the standard gas, switches on/off the on/off valve.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: March 10, 2015
    Assignee: HORIBA STEC, Co., Ltd.
    Inventors: Yuichiro Hashimoto, Junichi Miyaji
  • Patent number: 8973611
    Abstract: A pressure control valve designed as a slide valve and having an axially situated supply port.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 10, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Schudt, Kurt Gensheimer
  • Patent number: 8967180
    Abstract: A pilot type pressure regulator has: a primary port to which air is supplied from the outside; and a secondary port discharging air regulated by a main valve body provided to a main valve shaft. A main valve diaphragm abutting on an abutting end surface of the main valve shaft partitions an inner space into a secondary pressure chamber communicating with the secondary port and a pilot pressure chamber to which pilot pressure is supplied. This pressure regulator has an exhaust mechanism exhausting air from the secondary pressure chamber to the outside when pressure of the secondary port exceeds a set value. In the exhaust mechanism, a stopper holding a sealing material in a guide hole is inserted from the side close to a main valve hole, that is, an inner end portion.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: March 3, 2015
    Assignee: Koganei Corporation
    Inventor: Takeshi Yamauchi
  • Patent number: 8967199
    Abstract: A rotary valve adapted for use in utility scale fluidic systems improves over conventional valving schemes by affording reductions in weight, pressure drop, cost, and actuation time, as well as providing improvements in decompression performance, higher pressure capability, and longer operational life. One embodiment of a three way valve assembly utilizes electric actuation to adjust decompression in real time and facilitate port shaping. The valve assembly utilizes a pressure balanced rotor and seals to reduce actuation and bearing loads, as well as increase seal life.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 3, 2015
    Assignee: General Compression, Inc.
    Inventors: Matthew Blieske, Simon Christopher Helmore
  • Patent number: 8967182
    Abstract: A tire valve (1) having a valve channel (11) with a valve body (10) enclosing a valve seat (15), having at least one connecting piece (9) for connecting the valve body (10) to a valve base (2) is disclosed. The valve body (10) has a valve part (12) inserted in the valve channel (11) and displaceable in the axial direction therein, sealingly bearing against the valve seat (15) of the valve body (10) in the closed position of valve (1). The connecting piece (9) of the valve body (10) is placed in a connecting segment (8) at a distance in the axial direction from the functional valve segment of the valve body (10), and the valve body (10) is implemented as a single piece.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: March 3, 2015
    Assignee: PTG Reifendruckregelsysteme GmbH
    Inventor: Bertram Tigges
  • Patent number: 8967200
    Abstract: In order to provide a fluid control valve that can flow a large amount of fluid with a compact arrangement, ring-shaped bottom formed grooves that are in communication with an upstream side flow channel through a valve inner flow channel and ring-shaped bottom formed grooves that are in communication with a downstream side flow channel through a valve inner flow channel are arranged alternatively and plurally between a seating surface and a valve seat surface, and a communication bore, which is an opening in communication with the bottom formed groove of the valve inner flow channel, is formed at least on the side surface of the bottom formed groove.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: March 3, 2015
    Assignee: Horiba STEC, Co., Ltd.
    Inventor: Shigeyuki Hayashi
  • Patent number: 8967197
    Abstract: A remote actuator device for a valve control knob on a tank (e.g., storage tank) is disclosed.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: March 3, 2015
    Assignee: Telmore Technologies, Inc.
    Inventor: Richard Herbert Teel, Jr.
  • Patent number: 8967178
    Abstract: A valve assembly configured to close off the flow of fluid within a fluid injection assembly includes a fluid column having a first open end and a second open end. A fluid flow path is defined between the first and second open ends of the fluid column, and a saturation valve portion is disposed within the fluid flow path. The saturation valve portion is a first configuration when no fluid is flowing through the fluid flow path, and the saturation valve portion transitions to a second configuration when fluid is flowing through the fluid flow path.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 3, 2015
    Assignee: UTILX Corporation
    Inventors: James Steele, William R. Stagi, Alexander Babchanik
  • Patent number: 8967183
    Abstract: A drain line access device is provided for flushing HVACR drain lines. The device includes a main body having input and outlet connection ports on opposite ends for inline installation to a drain line, a flapper assembly sized and configured for seated placement in an interior cavity of the main body, and a removable top cover. The flapper assembly includes a flapper holder, a flapper, a flapper seat, and a spring hinge for rotatably urging the flapper into the normally raised position. An injection port is provided on the top cover for delivering a flow of pressurized gas or liquid for flushing out a clog in the drain line. In operation, delivery of pressurized gas or fluid into the drain line forces the flapper against the flapper seat, thereby sealing off one of the respective ends of the main body and directing the pressurized gas into the drain line.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: March 3, 2015
    Assignee: MSD Research, Inc.
    Inventors: Stuart Oakner, Donna Oakner
  • Patent number: 8967196
    Abstract: A valve assembly may include a valve disposed in a flow path and an actuator disposed above the valve. The actuator may be configured to actuate the valve to move between an open position and a closed position. The valve may also include a rocking member disposed above the actuator and configured to move with the valve. The valve may also include a pair of first and second position sensors disposed above and parallel to the actuator. The pair of first and second position sensors may be configured to detect a position of the rocking member. The position of the rocking member may be indicative of a position of the valve.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 3, 2015
    Assignee: Solar Turbines Incorporated
    Inventors: Khang Pham Ngoc Ha, Cody Charles Howarth
  • Patent number: 8960230
    Abstract: The invention relates to a valve, in particular for a component in microfluid technology, comprising valve bodies (1, 2) which have surfaces (6, 7) intended for contact with each other and which can be moved relative to each other by displacing the contact surfaces (6, 7), wherein channels (4, 5) for the inflow and outflow of a fluid open into one (6) of the contact surfaces (6, 7) and a depression (9) for forming a connection between the channels (4, 5) is provided in the other contact surface (7). According to the invention, a flexible separating film (10), which can be stretched into the depression (9) to form the connection, is arranged between the contact surface (6, 7).
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 24, 2015
    Assignee: Thinxxs Microtechnology AG
    Inventor: Lutz Weber