Ram Type Patents (Class 417/226)
  • Patent number: 11441786
    Abstract: A geothermal system having a flow station connected to a heat pump that is connected to a heat pump that is connected to a flow vector assembly. The flow vector assembly is connected to a heating coil and a cooling coil disposed within the ductwork of a furnace. The flow vector assembly may also be connected to a flow helix heat exchanger assembly.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 13, 2022
    Inventor: Steve Kapaun
  • Patent number: 10443493
    Abstract: A wave rotor assembly includes a wave rotor combustor and an exit duct. The wave rotor combustor includes an aft plate formed to include an exit port and a rotor drum mounted for rotation relative to the aft plate. The rotor drum is formed to include a plurality of rotor passages arranged to align with the exit port during rotation of the rotor drum. The exit duct is coupled to the aft plate and defines a passage arranged to receive exhaust gasses flowing through the exit port.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: October 15, 2019
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventors: Calvin W. Emmerson, Philip H. Snyder
  • Patent number: 9976573
    Abstract: A rotary isobaric pressure exchanger (IPX) includes a first end cover having a first surface that interfaces with a first end face of a rotor, wherein the first end cover has at least one first fluid inlet and at least one first fluid outlet. The IPX includes a second end cover having a second surface that interfaces with a second end face of the rotor, wherein the second end cover has at least one second fluid inlet and at least one second fluid outlet. The IPX includes a port disposed through the first surface of the first end cover or through the second surface of the second end cover, wherein during rotation of the cylindrical rotor about the rotational axis the port is configured to fluidly communicate with at least one channel of the plurality of channels within the rotor.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 22, 2018
    Assignee: ENERGY RECOVERY, INC.
    Inventors: Jeremy Grant Martin, James Lee Arluck
  • Publication number: 20150004011
    Abstract: An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Donald E. Army, Patrick McCord, Dominique P. Sautron, Thomas M. Zywiak
  • Publication number: 20140178214
    Abstract: A hydropneumatic device having pressure a working part with a working piston guided in the working part and an intensifier part with an intensifier piston guided in the intensifier part. A connecting section for a hydraulic connection of the working part and of the intensifier part provides a connecting line for passage of hydraulic fluid between the working part and the intensifier part. The connecting section includes an adapter component which can be mounted on the working part and the intensifier part, and in the interior of which the connecting line is formed. In the mounted state of the adapter component, an opening, which is provided at the side on the working part, of a hydraulic chamber of the working part is connected, via the connecting line, to an opening, which is provided at the side on the intensifier part, of a hydraulic chamber of the intensifier part.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 26, 2014
    Applicant: TOX PRESSOTECHNIK GMBH & CO. KG
    Inventors: Eberhard DIETZEL, Eugen RAPP
  • Publication number: 20140072454
    Abstract: A hydraulic intensifier comprising a reciprocating differential piston arrangement and a controller configured to control the supply of low pressure hydraulic fluid to the intensifier is provided. The controller comprises at least one solenoid operated pilot valve and electronic operator configured to operate the pilot valve.
    Type: Application
    Filed: October 31, 2011
    Publication date: March 13, 2014
    Applicant: VETCO GRAY CONTROLS LIMITED
    Inventor: Timothy James Roberts
  • Publication number: 20130302182
    Abstract: This invention relates to apparatus and methods for pumping liquids, in particular using hydraulic ram pump techniques. The techniques we describe can advantageously be used, for example, for drawing water from a deep well in a developing country. We describe a hydraulic ram liquid pump, the pump comprising: a liquid conduit having first and second arms and a connecting portion to connect said arms; first and second one-way inlet valves to said liquid conduit; first and second internal shockwave generating devices within said liquid conduit between said first and second inlets; at least one one-way exit valve from said liquid conduit; wherein, in use, when said second shockwave generating device is sealed a column of liquid in said first arm is in fluid communication with a said exit valve and when said first shockwave generating device is sealed a column of liquid in said second arm.
    Type: Application
    Filed: October 7, 2011
    Publication date: November 14, 2013
    Inventor: Thomas C.B. Smith
  • Publication number: 20080008601
    Abstract: A hydraulic pressure amplifier with a housing which has an end face at a low pressure side and an end face at a high pressure side and a circumferential wall between the two end faces, wherein an outlet valve is arranged adjacent the end face on the high pressure side, and an outlet duct for the hydraulic liquid which is under high pressure. In a pressure amplifier of the above-described type, the outlet duct opens into the circumferential wall or extends through a connection plug which is screwed into the end face on the high pressure side and closes off an assembly duct which receives the outlet valve.
    Type: Application
    Filed: May 31, 2007
    Publication date: January 10, 2008
    Inventors: Peter J. M. Chausen, Leif Hansen, Thyge Bollmann, Christen Espersen
  • Patent number: 7175395
    Abstract: A system to intensify pressure supplied by a conventional pump where a piston assembly having two piston members at opposite ends is positioned in a pressure cylinder. The laterally outer subchambers are defined by the piston members and the cylinder and are adapted to receive fluid at an operating pressure provided by the pump and produce intensified pressure at the opposite outer subchamber. A pressure distributing system alternates returning fluid at intensified pressure to the inner subchamber near the outer subchamber creating the intensified pressure.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: February 13, 2007
    Inventor: Daniel L. Forest
  • Patent number: 6863157
    Abstract: A lubricant injector having a measuring chamber, venting of the injector involving transmission of lubricant from its inlet to the measuring chamber, a method of operation of the injector involving such transmission, systems embodying one or more of such injectors, improving the performance of existing systems by use of one or more such injectors, an injector/connector assembly, and an injector sealing assembly.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: March 8, 2005
    Assignee: Lincoln Industrial Corporation
    Inventors: Paul G. Conley, Thomas M. Arens
  • Patent number: 6705432
    Abstract: A lubricant injector having a measuring chamber, venting of the injector involving transmission of lubricant from its inlet to the measuring chamber, a method of operation of the injector involving such transmission, systems embodying one or more of such injectors, improving the performance of existing systems by use of one or more such injectors, an injector/connector assembly, and an injector sealing assembly.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: March 16, 2004
    Assignee: Lincoln Industrial Corporation
    Inventors: Paul G. Conley, Thomas M. Arens
  • Publication number: 20040042907
    Abstract: An improved ram pump for use with a fluid source having an initial head. The ram pump is of a generally known type and the improvement includes modification of a waste valve member of the ram pump to be selectively moveable along a path having a vertical component between a default waste configuration and a closed configuration. The waste valve member is gravity-biased towards the default waste configuration. The improvement also includes modification of a check valve member of the ram pump to be selectively moveable along a substantially horizontal path between a ram configuration and a pump configuration. The check valve member is biased towards the ram configuration, and the fluid source is substantially horizontally flowable through a pump outlet of the ram pump when the check valve member is in the pump configuration.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 4, 2004
    Applicant: W & B Ram Pumps Inc.
    Inventor: Ronald F. Whitehouse
  • Publication number: 20030021700
    Abstract: An intensifier pump system includes a supply pump for delivering fluid products at an intermediate pressure. The products are delivered to one or more intensifier pumps that take advantage of hydraulic intensification to expel the product at high pressures to assure continuous product deployment in various systems. After an extension cycle in one of the intensifier pumps, product is delivered from the supply pump at a pressure sufficient to retract the intensifier pump and fill the chamber with fluid.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Applicant: Imation Corp.
    Inventors: Mark Serafin, LeRoy C. Erickson
  • Patent number: 6447259
    Abstract: An energy recovery device includes at least one cylinder, a piston slidable in the cylinder, a first valve for selectively connecting one end of the cylinder to waste liquid at a first relatively high pressure and to drain and a second valve for allowing feed liquid to enter the other end of the cylinder at a second lower pressure via a feed liquid entry port and to be discharged via a feed liquid discharge port from the other end of the cylinder in response to movement of the piston caused by waste liquid entering the one end of the cylinder. A rod which extends from the other end of the cylinder and into but not through the piston, ensures that the area of the piston acting on the feed liquid is less than the area of the piston acted upon by the waste liquid so that the piston acts as a pressure intensifier to discharge feed liquid through the feed liquid discharge port at a higher pressure than the pressure of waste liquid entering the one end of the cylinder.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: September 10, 2002
    Assignee: Calder Limited
    Inventor: Peter Elliott-Moore
  • Patent number: 6443709
    Abstract: An oscillating spring valve fluid pumping system for use in a flowing stream of fluid comprises a spring valve, check valve and a housing with inlet and two outlets, one outlet for each valve. As fluid enters the system, it is directed to a spring valve which is biased in the open position by a first spring. Fluid passing by the spring valve exits the housing from one of the outlets and returns to the stream. When a predetermined amount of pressure is reached, the spring valve closes thus creating a back pressure and redirecting the fluid through a check valve mechanism to relieve that pressure. Fluid passing the check valve escapes through one of the outlets for distribution by the user. Concurrently, the pressure at the spring valve is reduced thereby causing the spring valve to open against a second spring. As fluid continues to enter the system, the spring valve repeatedly oscillates thus producing an increased pressure head at the system outlet.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: September 3, 2002
    Inventor: Robert L Jackson
  • Patent number: 6234764
    Abstract: The invention relates to a hydraulic ram pump, comprising: a propulsion water line fed with propulsion water, a delivery line which can be connected to delivery water via a bottom valve, a ram pump valve which is connected to the propulsion water line and delivery line, the propulsion water flowing into the delivery line when the ram pump valve is open and, after the closing of the ram pump valve, the water column flowing further in the delivery line sucking in delivery water via the bottom valve, the ram pump valve being held by spring force in its closed position separating the propulsion water line from the delivery line, and a pressure reservoir being provided, which is connected to the propulsion water line upstream of the ram pump valve in the direction of flow, the valve member being of annular design, axially movable and tightly connected to the delivery line, the effective cross section of this connection being larger than the cross section of the valve seat, and the valve seat of the ram pump valve
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: May 22, 2001
    Inventor: Karl Obermoser
  • Patent number: 6142746
    Abstract: A pump device is disclosed, comprising a supply tube 1, for a liquid with a relatively low head, an accumulator 3 connected to supply tube 1 via a one-way valve 2, an outlet tube 4 from the accumulator for liquid with a relatively high head, and an outlet valve, provided at the supply tube 1 after the accumulator, which outlet valve opens and shuts an outlet 5 at the supply tube 1. The pump device is primarily characterized in that the outlet valve comprises a damper 6 movable between a position, in which the opening 5 is left open, and a position, in which the opening 5 is closed.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: November 7, 2000
    Inventor: Lars-Olof Lundgren
  • Patent number: 5310322
    Abstract: Hydraulic ram pump apparatus is provided, of the type including a body member (7) having a water flow passage therethrough, a waste gate (1) disposed in the passage, a delivery outlet (23) and a one-way delivery valve (10, 11) disposed in the outlet. The improvement therein lies in the waste gate (1) being pivotally mounted to the body member (7) and configured such that, in its fully open position (1a), the waste gate (1) does not significantly restrict the flow of water through said passage, in the interest of efficiency at low drive heads. The waste gate (1) is spring biased towards its open position to provide opening assistance to the waste gate (1) at low drive heads. The spring bias is such that it is at its greatest when the waste gate (1) is fully closed and is substantially zero when the waste gate is fully open.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: May 10, 1994
    Assignee: Peppermint Springs Pty Ltd.
    Inventor: Ian J. Richards
  • Patent number: 5271721
    Abstract: Hydraulic ram pump apparatus is provided, of the type including a body member (7) having a water flow passage therethrough, a waste gate (1) disposed in the passage, a delivery outlet (23) and a one-way delivery valve (10, 11) disposed in the outlet. The improvement therein lies in the waste gate (1) being pivotally mounted to the body member (7) and configured such that, in its fully open position (1a), the waste gate (1) does not significantly restrict the flow of water through said passage, in the interest of efficiency at low drive heads. The waste gate (1) is spring biased towards its open position to provide opening assistance to the waste gate (1) at low drive heads. The spring bias is such that it is at its greatest when the waste gate (1) is fully closed and is substantially zero when the waste gate is fully open.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: December 21, 1993
    Assignee: Peppermint Springs Pty Ltd
    Inventor: Ian J. Richards
  • Patent number: 5102303
    Abstract: A hydraulic ram includes a water inlet conduit, a draining conduit with a main clapper valve and a bell or cup valve. The bell or cup valve communicates with the chamber through a plurality of individual clapper arranged parallel to one another. Each of the individual clapper valves block one passage orifice. The bell or cup valve has a water backflow outlet connection. The individual clapper valves include spheres of resilient material located adjacent seats arranged in a wall separating the chamber from the bell or cup valve. The wall includes separating barriers and a perforated back-up plate. The draining conduit is arranged vertically under the chamber. The main clapper defines a vertical axis extending into the chamber and is mounted slidably in a stationary bearing, while being pulled back constantly and elastically into a top open position of the main clapper valve. The main clapper valves also includes an element serving as a shock absorber for an end of a downstroke.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: April 7, 1992
    Inventor: Michel Gobaud
  • Patent number: 5086645
    Abstract: A multiple arm caliper system for operation of a multiple arm caliper tool is set forth. It incorporates an elongate tool body having a motor means therein. The motor means operates a coupling rod connected to a resilient spring loading a piston within a cylinder. Within the cylinder, and extending through a transverse head defining the cylinder, individual push rods for each caliper arm extend. The push rods are forced from the chamber by fluid pressure within the chamber. Each push rod connects through suitable pivot points to an independent bell crank which is pivotally mounted to rotate each arm. Fluid pressure within the chamber is provided by the motor operating through a push rod which couples through a coil spring in the preferred embodiment to the chamber.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: February 11, 1992
    Assignee: Halliburton Logging Services, Inc.
    Inventor: John G. Deaton
  • Patent number: 4930993
    Abstract: An energy regenerative apparatus for a water hammer type pump includes a water hammer type pump and an engergy regenerative apparatus. The water hammer type pump includes a reservoir which is connected to a pump body by a pipe. A pressure tank is fixed on top of the pump body. A piston rod with a piston head is slidably provided in the pump body. A water passage between the pump body and the pressure tank is controllable by the piston head so as to control a flow of water from the pump body to the pressure tank. A flat valve is disposed between an outlet pipe and the pressure tank so as to prevent any reverse flow of water from the outlet pipe into the tank. A water gate valve is provided for controlling a water passage of the pump body.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: June 5, 1990
    Inventors: Tai-Kang Han, Tai-Feng Chang
  • Patent number: 4911613
    Abstract: A motorless water pump for utilizing the rate of flow of falling water to pump the same to a higher location. The pump utilizes a phenomenon known as "water hammer" to use the force of the running water to close a valve and pump the water to a higher location. The pump is economical, portable and contains relatively few moving internal parts.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: March 27, 1990
    Assignees: Larry A. Cox, Louis B. Garcia
    Inventor: Larry A. Cox
  • Patent number: 4864914
    Abstract: A hydraulic control circuit and method of operating a blowout preventer having a two-way hydraulic piston and cylinder assembly including an open and close port. An adjustable hydraulic supply is connected to a control valve which is in turn connected to the open and close ports. A pressure booster having an input and an output is connected to the close port and a control circuit is connected to the input of the booster and to the close port for actuating the booster and also blocking flow from the control valve to the closed port when the hydraulic supply increases to a predetermined value.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: September 12, 1989
    Assignee: Stewart & Stevenson Services,Inc.
    Inventor: Joseph L. LeMoine
  • Patent number: 4690618
    Abstract: In a booster type high-pressure container including an outer cylinder associated with upper and lower lids and an inner cylinder fitted in the outer cylinder with a gap clearance retained therebetween, a booster chamber is provided between a piston disposed within the inner cylinder at its bottom portion and the lower lid of the outer cylinder, a boosting liquid medium is injected into the booster chamber for pushing up the inner cylinder jointly with the piston to boost the pressure within the inner cylinder, and the gap clearance communicates with the booster chamber.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: September 1, 1987
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Makoto Akatsu, Keiichi Hori
  • Patent number: 4537563
    Abstract: An improved ram pump of the type having a pump housing (7) an inlet (8) for intake of fluid, a reservoir (10) for supply of a dynamic fluid head to the pump, a release valve mechanism (11) for exhaust of fluid from the pump and a lift valve mechanism (12) for output of back pressure generated by the pump. The improvements comprise a partially spirally wound lead pipe (9) connecting the reservoir to the pump inlet, an adjustable release valve mechanism (11) having a valve cup (13) and annular adjustment ring (21) which cooperate to form variable outlet ports (23) that selectively restrict exhaust of fluid to vary the height of fluid above the valve (16) and a lift valve mechanism (12) biased at a pressure greater than approximately 10 gm/cm.sup.2.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: August 27, 1985
    Assignee: Katsuhiko Ohki
    Inventor: Tetsuo Ogawa
  • Patent number: 4073604
    Abstract: A high efficiency water hammer type pump and more particularly, an improved construction for such a pump including a construction whereby water expelled from a waste valve is returned to the supply line of the pump.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: February 14, 1978
    Inventor: Chun-Pa Chen
  • Patent number: 4054399
    Abstract: A ram valve is connected in the supply line through which water flows at a high mass flow rate. A branch line branches off upstream of the valve and includes a check valve and a pressure vessel upstream of the check valve. The ram valve is constructed to have an elongated valve housing and a movable valve body therein, slidable axially in the direction of flow, and shaped to provide for smooth fluid flow therethrough when open and forming a smoothly continuous decreasing flow cross-sectional area. The valve body is held open by an adjustable force, such as a spring or a magnet. When the force is exceeded, the valve body closes suddenly, causing a pressure pulse to be transmitted through the then open check valve into the branch pressure vessel to build up pressure therein. A closed supply pressure vessel having an air cushion is included in the inlet supply line to the valve.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: October 18, 1977
    Inventor: Alfred Maurer
  • Patent number: H2219
    Abstract: The coating method includes the steps of dissolving coating precursor(s) in a solvent to form a precursor solution: adding with mixing a miscible diluent to the precursor solution to form a coating solution; admixing solid particles to the coating solution to form a coating slurry, with the particles surrounded with the coating solution; spraying the coating slurry to form droplets containing at least one particle; passing the droplets through a drying zone where the droplets are dried and form dry particles coated with a coating material formed from the coating precursor(s); heat-treating the coating material on the particles emanating from the drying zone to remove volatile matter on the coating material, to improve integrity of the coating material and/or to effect another objective; and collecting dry coated particles.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: July 1, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Shyam S. Bayya, Guillermo R. Villalobos, Jasbinder S. Sanghera, Ishwar D. Aggarwal