Through External Pipe Patents (Class 137/505.22)
  • Patent number: 11796135
    Abstract: A receptacle includes a main body, a stem, a poppet connected to the stem and defining an inner check void, a spring configured to bias the poppet to a closed poppet position, and a check assembly at least partially disposed in the inner check void. The check assembly includes a check and a check spring. The check is configured to move relative to the main body. The check spring is configured to bias the check toward a closed check position. The check has a first surface area and the poppet has a second surface area that is larger than the first surface area of the poppet such that a fluid force causes the check to move to an open check position before causing the poppet to move to an open poppet position.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: October 24, 2023
    Assignee: Engineered Controls International, LLC
    Inventors: Chad Thomas, Howard M. Konishi, Jeffrey S. Howard
  • Patent number: 11768053
    Abstract: A pre-charged pneumatic air gun includes a barrel, a firing valve, a trigger assembly, a compressed gas storage tank, a first chamber, a larger second chamber and a compression piston movable within the first chamber and the second chamber. The compression piston is operable to increase a pressure in the first chamber to a final first chamber pressure greater than an initial first chamber pressure by sequentially opening a first fill valve with the second fill valve closed to allow compressed gas to flow into the first chamber then opening a second fill valve to allow the compressed gas to flow into the second chamber, thereby displacing the compression piston and further compressing the compressed gas in the first chamber to achieve the final first chamber pressure.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: September 26, 2023
    Inventor: Alexander S. Edelman
  • Patent number: 11655908
    Abstract: A CO2 low-pressure shut-off system is described. The low-pressure shut-off system may include a low-pressure shut-off valve including a first valve inlet, a second valve inlet and at least one valve outlet, a solenoid valve including a valve inlet, a first valve outlet, and a second valve outlet. The solenoid may be configured to direct a flow of a pressurized gas from the valve inlet into at least one of the first valve outlet and the second valve outlet. The CO2 low-pressure shut-off system further includes a gas monitor electrically coupled to the solenoid valve. The gas monitor may be configured to transmit one of a first signal and a second signal to the solenoid valve to control the flow of the pressurized gas through the solenoid valve.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 23, 2023
    Assignee: Engineered Controls International, LLC
    Inventors: Mark Kendrick Hamm, Christopher Taylor Herman, Elijah M. Combs
  • Patent number: 11549607
    Abstract: A pressure regulator for gas distribution systems includes: a connection body for connection between an upstream pipe and a downstream pipe, the following elements being defined inside the connection body: an inlet duct an outlet duct, a high-pressure chamber connected to the inlet duct, a low-pressure chamber connected to the outlet duct, a passage opening between the high-pressure chamber and the low-pressure chamber, a movable shutter designed to obstruct the passage opening, components for moving the movable shutter in a controlled manner. The components for moving the movable shutter in a controlled manner include: a first main control head fixed to the connection body and configured to operate the movable shutter through a first control rod, a second auxiliary control head configured to operate the movable shutter through a second control rod fixed to the same movable shutter.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 10, 2023
    Assignee: Pietro Fiorentini S.P.A.
    Inventors: Alberto Arsego, Michele Bernardi, Alessandro Bonamico
  • Patent number: 10976008
    Abstract: A system includes a first pressure-adjusting device positioned in a first line and a second pressure-adjusting device positioned in a second line. The first pressure-adjusting device is actuated solely via a first pneumatic signal output from a first pilot valve to control a downstream pressure in the first line. The second pressure-adjusting device is actuated via the first pneumatic signal in a first mode of operation, and is actuated via a second pneumatic signal output from a second pilot valve in a second mode of operation to control a downstream pressure in the second line.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 13, 2021
    Assignee: O.M.T. OFFICINA MECCANICA TARTARINI S.r.I.
    Inventors: Omero Borghesani, Stefano Zecchi
  • Patent number: 10289128
    Abstract: A method and arrangement for maintaining fluid flow pressure in a system at a preset, almost constant level. A method for maintaining fluid flow pressure almost constant regardless of mass flow. The arrangement including a pressure accumulator, and a nozzle valve. The nozzle valve having a valve body and axially oriented needle for opening and closing the mouth of its outflow channel. The needle shaft guided by a slide element mounted inside the valve body. The inflow into the flow body passes to the other side of the slide element through one or several channels. The needle moves axially to open and close the channel because of the forces acting upon it. Forces acting upon it may include the accumulator, the inflow and a spring. The needle's movement adjust the cross-sectional area of the outflow channel mouth not disposed by the needle head to maintain an almost constant pressure.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 14, 2019
    Assignee: Solar Water Solutions OY
    Inventor: Heikki Antero Pohjola
  • Patent number: 9904302
    Abstract: System and method for gas pressure stabilization. The system comprises a pressure stabilizer which is divided into a receiving chamber and a pressure chamber by a flexible membrane, a booster device, a gas divider, and a control driver that can sense movement of the flexible membrane and control the gas divider accordingly. A pressure pilot is used to set the desired pressure in the pressure chamber. The pressure of the receiving chamber will stabilize to be the same with that of the pressure chamber regardless of the gas flow change or gas pressure change at the gas source, or the pressure fluctuation in the downstream system. The gas passing the system can eventually be recycled to a recycling system in the downstream without harming the environment.
    Type: Grant
    Filed: January 3, 2015
    Date of Patent: February 27, 2018
    Inventors: Chunyu Wu, Hsin-Hui Lee
  • Patent number: 9874292
    Abstract: Diaphragm actuators having adjustable actuation force are disclosed herein. An example apparatus includes a spring seat coupled to a diaphragm of an actuator. The spring seat is to contact a spring and is to be coupled to a stem. The diaphragm is to displace the stem based on a force provided to the diaphragm, and the stem is to control a fluid valve. The example apparatus also includes an adjuster to adjust an amount of force provided to the spring seat by the spring.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: January 23, 2018
    Assignee: Fisher Controls International LLC
    Inventors: David Anthony Arnold, Daniel Martin Adams
  • Patent number: 9535428
    Abstract: The present disclosure provides a spring controlled valve including a spring being movable between an expanded position wherein coils of the spring are spaced apart from one another thereby permitting gas flow through the valve and a compressed position wherein the coils are in contact with one another thereby substantially preventing gas flow through the valve.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: January 3, 2017
    Assignee: Proportion-Air, Inc.
    Inventor: Dan Cook
  • Patent number: 8371329
    Abstract: A pilot device cooperates with a gas pressure regulator suitable for use in gas distribution systems and consists of: a head with two chambers separated by a first membrane, one chamber at the gas pressure regulator outlet pressure and the other at atmospheric pressure; a body with elastic means and an axial thrust unit acting on the first membrane and cooperating with a regulation unit having at the inlet a supply pressure and at the outlet the motorization gas which is transferred to the motorization chamber of the gas pressure regulator. The pilot device features a tank having a wall with a further membrane provided with the mechanical elastic setting means. Gas is conveyed into the tank with a load pressure to modify the thrust of the elastic setting means. The device has a closed compensation chamber at atmospheric pressure, having the further membrane in common with the tank.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: February 12, 2013
    Assignee: Pietro Fiorentini, S.p.A
    Inventor: Michele Bernardi
  • Patent number: 8356624
    Abstract: A self-operated pressure transmission type of pressure reducing valve with corrugated pipe has an upper cover, a cylinder, a lower cover, a sealing board, a sealing sleeve, a first and second nut, and an upper valve rod. The pressure reducing valve needs no external driving force. It only needs a power-saving product which can automatically adjust the pressure according to the pressure change of the adjusted object. It has multiple functions such as measuring, implementing and controlling pressure, and it solves the problems in the operation process of the conventional pressure reducing valve.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: January 22, 2013
    Inventor: Baochun Chen
  • Patent number: 7343928
    Abstract: A regulator insert for valves includes inflow openings and a plurality of slot-shaped outflow openings extending in the axial direction of the insert and being, via a roller membrane, closable in response to the difference in pressure across the insert under the influence of a spring that seeks to keep the outflow openings open. The slot-shaped outflow openings have at least two different lengths, whereby complete closure of at least some of the outflow openings can take place only consecutively. At least one of the slot shaped outflow openings has such length that complete closure thereof by means of the roller membrane is not possible.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: March 18, 2008
    Assignee: Flowcon International A/S
    Inventor: Peter Moesby
  • Patent number: 6488046
    Abstract: Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) at a pressure which depends on the gas pressure in the outlet pipe (3), an opening, closed by a membrane (43) integral with a cap (42), located between the said chamber (24) at the reference pressure and the said gas outlet pipe (3), a gas inlet chamber (10) with an opening (11) which leads to the said outlet pipe (3) in correspondence with the said cap (42), the movements of which said cap open and close the passage (11) between the said inlet chamber (10) and the said outlet pipe (3), and means (41) integral with the said first membrane (25) which act on the said cap (42) so that it approaches and retracts from opening (11) of the said gas inlet chamber.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 3, 2002
    Assignee: Poliauto di P. Parietti & C. S.n.c.
    Inventor: Pietro Parietti