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| Number | Title | Issue Date |
| 8375976 | Method and device for attenuating pressure surges of liquids flowing inside a liquid conduit A system and a method are provided for attenuating pressure surges of liquids, e.g., of a biologically vulnerable liquid, flowing inside a liquid conduit and for cleaning, in particular sterilizing, the liquid conduit. In particular, the liquid is permitted to swerv... | 02/19/2013 |
| 7861739 | Hydraulic pressure damping device A hydraulic pressure damping device mainly comprises a valve body of which a joint port is provided with a control valve of which one end is provided with a first joint to valve a switch of the valve body between a water inlet and a water outlet. A second joint at t... | 01/04/2011 |
| 7370665 | Tanks A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm ... | 05/13/2008 |
| 7353845 | Inline bladder-type accumulator for downhole applications An accumulator comprises a housing connected to a hydraulic system, an elastomeric bladder separating a gas compartment from a fluid compartment, and an anti-extrusion device. A method for operating an accumulator comprises connecting the accumulator to a hydraulic ... | 04/08/2008 |
| 7341058 | Neonatal valved manifold An improved manifold assembly useful in patient ventilation/aspiration systems includes a stop cock valve with a hollow stem and a transverse port arranged to permit the stem to be rotated between open and closed positions. In both positions, a ventilating pathway i... | 03/11/2008 |
| 7284563 | Surge relief apparatus and method A surge relief apparatus for sensing, tracking and responding to pressure changes in a flow system. The apparatus includes a fluid storage tank that is in fluid communication with the flow system. The apparatus also includes a control valve that is connected to the ... | 10/23/2007 |
| 7117905 | System and method for automatically filling a liquid receptacle An automatic liquid filling system including a liquid supply, a liquid-retaining structure, and a filling apparatus in fluid communication with the liquid supply and the liquid-retaining structure. The filling apparatus is configured to automatically supply liquid t... | 10/10/2006 |
| 7096898 | System and method for automatically filling a liquid receptacle An automatic liquid filling system including a liquid supply, a liquid-retaining structure, and a filling apparatus in fluid communication with the liquid supply and the liquid-retaining structure. The filling apparatus is configured to automatically supply liquid t... | 08/29/2006 |
| 7025092 | Positive air pressure attenuation device for drainage systems The positive air pressure attenuation device (1) for use in drainage systems in buildings includes a housing (3), connected to the system, to which a flexible reservoir (10) is secured, the flexible reservoir (10) being operable on a posi... | 04/11/2006 |
| 7013925 | Accumulator tank assembly and method Some embodiments of the present invention provide an accumulator tank assembly and method in which a flexible bladder is received within an accumulator tank. The accumulator tank and the flexible bladder can each have an inlet aperture through which fluid is receive... | 03/21/2006 |
| 6971411 | Trapped gas removal in liquid gas accumulator A hydraulic accumulator of the liquid-gas type, comprising a housing (11) defining a chamber (11C), a gas port (30) and a liquid port (19). A gas charging valve (31) is disposed in the gas port (30) to control admission of h... | 12/06/2005 |
| 6767188 | Constant output fluidic system A device for conditioning of fluid to minimize pulses from a pump source. A pump drives fluid from a vented fluid reservoir through a system including a combination of an attenuation tank and one or more orifice. Fluid is pumped into a plenum chamber that supplies f... | 07/27/2004 |
| 6742534 | Method of damping surges in a liquid system A method of damping surges in a liquid system includes providing in the system, a surge vessel in which there is trapped air or other gas, the surge vessel being positioned so that in the event of a surge in the system (10), the volume of trapped air or other... | 06/01/2004 |
| 6732758 | Fluid shock absorber assembly A fluid shock absorber assembly having a shut-off valve, a water hammer arrester device and a water inlet. The assembly is comprised of a low profile adaptor structure constructed and arranged to permit the assembly to be mounted in a housing enclosure for aligning ... | 05/11/2004 |
| 6672337 | Serially connected fluid hammer preventer An in-line type fluid hammer prevention device capable of maintaining pressure energy conversion efficiency of elastic cushion for a long time by improving fluid sealing tightness against an elastic cushion by elastic cylindrical diaphragm, wherein an inl... | 01/06/2004 |
| 6516825 | Method and valve device for counteracting harmful pressure pulses in a hydraulic system A method and a valve apparatus for counteracting harmful pressure pulses caused by rapid retardation of a liquid in a hydraulic system comprising a pump for the supply of liquid to a conduit stretch containing a non-liquid-filled volume. The valve apparat... | 02/11/2003 |
| 6422262 | Discharge device for raw materials and fuels A device for discharging liquid such as raw materials and fuels capable of discharging liquid stably even under such conditions that the environment of a discharge space varies drastically and suddenly by adjusting discharge conditions to optimum ones acc... | 07/23/2002 |
| 6336467 | Float and valve assembly for accumulator An improved float and valve assembly for a liquid-gas accumulator including a buoyant float having a density selected in accordance with the working pressure, a float which can be lengthened or shortened, and friction and drag is reduced by optimizing the... | 01/08/2002 |
| 6167756 | Pivotal float for liquid level detection apparatus A float for a liquid level detection apparatus including a tube extendable through liquid in a tank. The float is a buoyant body slidably mounted about the tube and having a diameter passable through an aperture in the tank. The float is preferably formed... | 01/02/2001 |
| 6047721 | Air introduction device for a hydro-pneumatic reservoir Device 7 for introducing air into a hydraulic system comprising a hydro-pneumatic reservoir 3 mounted on a pipe 1. The air introduction device 7 is mounted in such fashion as to introduce air into an area of the system containing water in which the pressu... | 04/11/2000 |
| 6029690 | Inlet portion of a valve An inlet portion of a valve, comprising a tube element having at least one connecting piece which forms the connection of a connecting tube which in turn is connected to a water supply net. The connecting piece is provided with a tube part being coaxially... | 02/29/2000 |
| 5860799 | Pulsation damper for marine tank pumpout systems A marine tank (such as a toilet system holding tank, or bilge tank) pump out system includes a positive displacement pump connectable at the inlet to a marine tank to be pumped out and connectable at the outlet to a discharge tank or area. A pulsation dam... | 01/19/1999 |
| 5785815 | Process for damping pressure pulsations and apparatus for performing the process Process for damping pressure pulsations and apparatus for performing the process. The process of this invention serves for the damping of pressure pulsations in a fluid, particularly a fiber suspension, flowing in a closed system wherein the pressure puls... | 07/28/1998 |
| 5647392 | Air regulation system for hydropneumatic reservoir An air regulation system for a hydropneumatic reservoir of a hydraulic conduit includes a chamber, a water filling device for the chamber, a water emptying device for the chamber, an automatic air introduction device for introduction of air in the chamber... | 07/15/1997 |
| 5520208 | Resilient seal for a liquid-gas accumulator A resilient seal for a liquid-gas accumulator of the type having a housing with a top gas port and a bottom liquid port. A valve assembly including a spring-loaded normally open poppet valve surrounded by a sleeve is positioned in the liquid port, and a d... | 05/28/1996 |
| 5476448 | Apparatus for suppressing a vacuum surge in eye surgery A surge suppresser which has a collapsible flexible wall that accumulates the aspiration fluid of an interocular surgical system. The surge suppresser has an inlet port and an outlet port that are connected to an aspiration line downstream from a surgical... | 12/19/1995 |
| 5415197 | Equalizing reservoir configuration, especially for cooling circuits in nuclear power stations An equalizing reservoir configuration for fluid circuits with volume and/or pressure fluctuations, especially for cooling circuits in nuclear power stations, includes an equalizing reservoir communicating with a fluid circuit through a fluid line connecte... | 05/16/1995 |
| 5333524 | Pressure stabilizer for barfeed apparatus A pressure stabilizing apparatus is given which is capable of storing and supplying the volume of hydraulic fluid needed for rapid advances as well as accepting displaced hydraulic fluid required for rapid retractions in a barfeed apparatus. This pressure... | 08/02/1994 |
| 5322551 | Fluid slug flow mitigation with partitioned pipe Slug flow is substantially prevented in cylindrical pipes and other conduits by placing a generally flat plate partition extending within the pipe and dividing the pipe into a gas flow space and a liquid flow space. The position of the partition and the c... | 06/21/1994 |
| 5218987 | Method and apparatus for water surge protection and protection of fire hydrant systems A method and apparatus are disclosed for protecting a water distribution system from water surge damage which otherwise might result if one of its valves is suddenly opened or closed. The outlet of the shut-off valve and the inlet of the hydrant valve of ... | 06/15/1993 |
| 5097862 | Accumulator with a valve connected float A liquid-gas accumulator having a housing with a top gas port and a bottom liquid port. A spring-loaded, normally open valve is positioned in the liquid port and a buoyant float is rigidly connected to the valve element for controlling the opening and clo... | 03/24/1992 |
| 5095933 | Expandable float assembly for use with an accumulator An expandable float assembly is insertable through the lower valve bore in an accumulator or a hole in a tank. The assembly includes a sleeve member and a plurality of floatable arm members. The floatable arm members may be folded to a position substantia... | 03/17/1992 |
| 5020565 | Water hammer absorber A water hammer absorber provided in a cold or hot water supply passage including: a tubular portion whose cross section gradually decreases toward a flow direction of cold or hot water until the inner diameter of the portion becomes minimum and then gradu... | 06/04/1991 |
| 5021125 | Pistonless accumulator A hydraulic accumulator prevents oil with gas entrained in it from exiting the accumulator. The accumulator comprises a completely static structure which provides laminar flow of oil from a gas pad to the accumulator outlet. The laminar flow is preferably... | 06/04/1991 |
| 4938789 | Raw material supplying device and process A raw material supplying device having a gas tight tank for receiving a material to be gasified by heating; a heater for heating the raw material within the tank and a plurality of pipes for conveying a plurality of streams of gas in parallel to each othe... | 07/03/1990 |
| 4921004 | Piercing surge regulator valve and apparatus Piercing surge regulator valve for use with a liquid-carrying member. There is a valve body adapted to be connected to the fluid-carrying member in a sealing manner. The valve body comprises a housing and a housing fitting inside of the housing, the housi... | 05/01/1990 |
| 4823827 | Float system for accumulator A float system for a ball type accumulator includes a circular hollow float member which surrounds the float travel guide rod in the ball type accumulator. Connecting the float member to the vertical guide rod is a ball member which is located in the cent... | 04/25/1989 |
| 4742842 | Hydro-pneumatic pressure vessels A hydro-pneumatic expansion tank is provided in a water pipe circuit. The hydro-pneumatic pressure vessel is in the form of a water/air expansion tank communicating with the pipe circuit by means of a conduit and a float valve is provided in the conduit. ... | 05/10/1988 |
| 4612089 | Surge suppression device Apparatus to reduce pressure pulsations in a pipe line. The apparatus comprises a central pipe to be connected to the pipe line. There is a resilient liner within the central pipe and an intermediate chamber is substantially concentric with the central pi... | 09/16/1986 |
| 4590796 | Apparatus and method for pulsation damping and flow measurement in liquid fuel system An apparatus and method are disclosed for reducing flow pulsations and measuring fuel flow in a fuel system for a liquid fuel engine. The engine (54) has associated with it a fuel tank (30) and a pump (32) for causing fuel to flow through a fuel flow path... | 05/27/1986 |
