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| Number | Title | Issue Date |
| 8171959 | Dampener apparatus and method A dampener device extending along a vertical axis for use with an industrial process having a first conduit through which process fluid flows along with a second conduit wherein the second conduit extends away from the first conduit generally along the vertical axis... | 05/08/2012 |
| 8100148 | Hydro sound damper, in particular for integration in an aircraft hydraulic system The invention relates to a hydro sound damper, in particular for integration in an aircraft hydraulic system, with a throughout inner tube, wherein the inner tube comprises a perforation section which is coaxially encompassed by a housing under formation of a gas-fi... | 01/24/2012 |
| 8056582 | System of stepped flow rate regulation using compressible members A series of compressible members disposed with a vessel lumen designed to produce a flow rate that increases with respect to an increasing flow material pressure with the rate of increase having a stepped behavior. The first compressible member is designed so as to ... | 11/15/2011 |
| 7950417 | High flow nozzle system for flow control in bladder surge tanks A surge tank is sized to retain a volume of fluid. A fluid inlet/outlet port is attached to the tank, and an elastomeric bladder is disposed within the tank and separates the fluid from a volume of gas. A nozzle system is disposed within the tank and has a nozzle me... | 05/31/2011 |
| 7921881 | Fluid conduit assembly The present invention is directed to a fluid conduit assembly. In accordance with one embodiment of the present invention, the inventive fluid conduit assembly includes a fluid conduit having an inlet, at least one outlet and a fluid flow passageway therebetween con... | 04/12/2011 |
| 7921882 | Feed line for a hydraulic system and hydraulic system The feed line for a hydraulic system, in particular of a motor vehicle, is formed, at least over part of its longitudinal extent, by a dimensionally variable body. The wall of the dimensionally variable body is elastically deformable, at least in regions, so that, w... | 04/12/2011 |
| 7918246 | Hydropneumatic accumulator with flexible porous filler A hydropneumatic accumulator with a flexible porous filler intended for fluid power recuperation in hydraulic systems with a high level of pulsations includes a shell where a gas port and a fluid port are connected, respectively, with a gas reservoir and a fluid res... | 04/05/2011 |
| 7918245 | Hydraulic pressure reservoir A hydraulic pressure reservoir having at least one pressure chamber formed between two opposed, movable inner boundary members. Each inner boundary members includes a spring cover and a diaphragm spring. An outer boundary member peripherally surrounds the movable in... | 04/05/2011 |
| 7886771 | Power steering system frequency suppressor A frequency suppressor for a hydraulic system is shown and described. The frequency suppressor comprises a housing that contains a substantially fixed mass of a compressible substance. The volume of the compressible substance is varied to dampen frequency disturbanc... | 02/15/2011 |
| 7874317 | Micro pipeline pressure stabilization apparatus A pressure stabilizer for mediating changes in pressure within a pipeline is provided. The pressure stabilizer incorporates a plurality of perforations about a central pipeline and a circumferential enclosure about the perforations. This structure allows excess flui... | 01/25/2011 |
| 7870871 | Inlet orifice for a fuel pressure damper A fuel pressure damper (10′) includes a housing (15) defining an inlet (46) constructed and arranged to receive fuel. An orifice disc (54) is provided at the inlet and includes at least one orifice (58). A cover (22) is co... | 01/18/2011 |
| 7857005 | Pulsation attenuator for a fluidic system A pulsation attenuator for a fluidic system with a fluidic pump. The pulsation attenuator includes a fluidic channel, a first fluidic device adapted to attenuate pulsations, and a second fluidic device adapted to attenuate pulsations. Preferably, the first fluidic d... | 12/28/2010 |
| 7721765 | Power steering system frequency suppressor A frequency suppressor for a hydraulic system is shown and described. The frequency suppressor comprises a housing that contains a substantially fixed mass of a compressible substance. The volume of the compressible substance is varied to dampen frequency disturbanc... | 05/25/2010 |
| 7717135 | Energy attenuation device An energy attenuation device for a system adapted to convey pressurized fluid through tubing of the system, comprising a multi-part conduit section for receiving fluid from, and returning fluid to, the tubing, the conduit section including a central portion, two int... | 05/18/2010 |
| 7690399 | High flow nozzle system for flow control in bladder surge tanks A surge tank is sized to retain a volume of fluid. A fluid inlet/outlet port is attached to the tank, and an elastomeric bladder is disposed within the tank and separates the fluid from a volume of gas. A nozzle system is disposed within the tank and has a nozzle me... | 04/06/2010 |
| 7665484 | Fluid coupling A pulsation absorber is provided in a fluid channel formed in a body of a fluid coupling. Fluid flows through the fluid channel in an assembled state. The pulsation absorber is arranged to deform in a same direction as the fluid to flow in the fluid channel pulsates... | 02/23/2010 |
| 7637285 | Hydraulic accumulator A hydraulic accumulator, in particular a bladder accumulator, includes two at least partially adjacent plastic casings (12, 14). The first plastic casing (12) has a collar part (16) at least at one end thereof. To produce a leakproof accumulator... | 12/29/2009 |
| 7628175 | Metal bellows accumulator To prevent breakage by abnormal deformation when seal function of a seal section becomes ineffective to cause pressurized liquid remaining in the liquid chamber to be lost, a metallic bellows-type accumulator having a metal bellows, a bellows cap, an outer gas chamb... | 12/08/2009 |
| 7621296 | Separation element A separation element of a multi-layer structure for pressure compensation including: at least two mutually superposed flexible, fluid-tight material layers; at least one spacer element which is arranged between the material layers and holds them at a spacing relativ... | 11/24/2009 |
| 7562678 | Pipeline pressure stabilizer A pressure stabilizer for mediating changes in pressure within a pipeline is provided. The pressure stabilizer incorporates a plurality of perforations about a central pipeline and a circumferential enclosure about the perforations. This structure allows excess flui... | 07/21/2009 |
| 7556064 | Apparatus and method for controlling the filling and emptying of a fluid container An apparatus and method for emptying and filling a fluid container. A valve is constructed in part of two concentric tubes. Flow of a fluid through the outer tube of two concentric tubes is regulated by the flow of the same or another fluid through the inner tube. T... | 07/07/2009 |
| 7527074 | Hydraulic pressure accumulator A bladder for a high pressure accumulator includes a metal foil layer adhered to the inside of a rubber bladder with a paint-on adhesive. A position contactor switch is further provided to signal position of the bladder within the accumulator and thereby prevent an ... | 05/05/2009 |
| 7520300 | Pulsation attenuator for a fluidic system A pulsation attenuator for a fluidic system with a fluidic pump. The pulsation attenuator includes a fluidic channel, a first fluidic device adapted to attenuate pulsations with a shallow rolloff slope, and a second fluidic device adapted to attenuate pulsations wit... | 04/21/2009 |
| 7497233 | Pressure damper and silencer, in particular for connections of sanitary fittings The invention relates to pressure dampers and silencers for adapters in water conduits and for fittings that are fixed onto sanitary fittings (see DIN EN 200, page 9, FIG. 8). Said dampers and silencers comprise a hose piece (14), which is su... | 03/03/2009 |
| 7493916 | Pressure vessel with accumulator isolation device A pressure vessel assembly is provided for a pressurized fluid system. The pressure vessel assembly comprises an outer casing defining an interior cavity within the outer casing, at least one fluid-pressure accumulator disposed within the interior cavity in the oute... | 02/24/2009 |
| 7472720 | High flow nozzle system for flow control in bladder surge tanks A surge tank is sized to retain a volume of fluid. A fluid inlet/outlet port is attached to the tank, and an elastomeric bladder is disposed within the tank and separates the fluid from a volume of gas. A nozzle system is disposed within the tank and has a nozzle me... | 01/06/2009 |
| 7412987 | Expansion tank with valve An expansion tank to be connected to a pipe system filled or with a liquid is disclosed. The expansion tank includes at least one connection opening for a liquid pipe. The tank has a main valve to close off the connection opening at a defined difference in pressure ... | 08/19/2008 |
| 7395838 | Piston-type accumulator A piston-type accumulator includes an accumulator housing provided in the form of a cylinder tube (1). A separating piston (15) separates two working spaces (5) and (6) from one another in the housing and can be displaced in an axial dire... | 07/08/2008 |
| 7380572 | Energy attenuation apparatus for a conduit conveying liquid under pressure, system incorporating same, and method of attenuating energy in a conduit An energy attenuation apparatus in fluid communication with tubing adapted to convey a liquid under pressure, and including a liquid-conveying unit in fluid communication with the tubing and having a diameter greater than the tubing diameter. The liquid-conveying un... | 06/03/2008 |
| 7380626 | Service vehicle A hydraulic excavator is equipped with one or more downsizing scheme including at least one of: (i) a bubble removing device for removing bubbles in hydraulic fluid, (ii) a hydraulic tank including a main tank and a variable capacity tank arranged separately from ea... | 06/03/2008 |
| 7377292 | Vehicular brake system component A vehicular brake system component is used in a brake system of a vehicle. The brake system component includes a sealable bonded component having a metal member and an elastic rubber member bonded to each other and located so as to touch a brake fluid. ... | 05/27/2008 |
| 7373953 | Valve assembly A valve assembly for plumbing installations. The valve assembly has a unitary valve body with three interconnected ports and a fluid control mechanism. Connector portions are formed about each port of the unitary valve body to thereby enable connection of the valve ... | 05/20/2008 |
| 7373824 | Automotive automatic transmission noise attenuators An apparatus for attenuation of fluid pressure pulses in a hydraulic system of an automatic transmission is provided. In one embodiment of the invention, a wave tuner is disposed within a fluid conduit between the transmission and a transmission fluid cooler. In ano... | 05/20/2008 |
| 7363944 | Sealing mechanism for diaphragm tank A liner for use with a diaphragm tank and a through-wall connector. The through-wall connector includes a passage fitting having a neck and adapted to extend into the diaphragm tank, an o-ring mounted on the passage fitting, and an annular holder mounted on the pass... | 04/29/2008 |
| 7360431 | Pressure sensor device including a diaphragm and a stopper member having a curved surface facing the diaphragm The pressure sensor device has a laminated diaphragm (12) in which a strain resistance gauge is formed in a surface and a stopper member (13) including a concave portion forming a curved surface parallel to a surface formed by displacement of the diaph... | 04/22/2008 |
| 7361267 | Dialysis machine blood circulating circuit fitting A fitting (1) for a blood circulating circuit (4) of a dialysis machine has a first ans a second mouth (8, 9) for connecting the fitting (1) to a first ans a second portion (2, 3) of the blood circulating circuit (4) respect... | 04/22/2008 |
| 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 |
| 7347222 | Energy attenuation device An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is made of flexible material and is provided with at least one aper... | 03/25/2008 |
| 7347509 | Diaphragm-type accumulator A diaphragm-type accumulator for a slip-controlled vehicle brake system has a media-separating element in a housing bore including a diaphragm made of an elastic material, which has a concave design with respect to a pressure fluid inlet for the purpose of pressure ... | 03/25/2008 |
| 7341045 | Hydraulic damper element A damper for damping pressure pulsations in a liquid includes an outer tube having an inner surface defining an interior cavity, and an inner tube positioned within the interior cavity of the outer tube. The inner tube includes an outer surface such that at least on... | 03/11/2008 |
