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| Number | Title | Issue Date |
| 8176940 | Pressure accumulator, in particular pulsation damper A pressure accumulator, in particular a pulsation damper, has an accumulator housing (1) defining a longitudinal axis (3) and having an inflow opening (15) and an outflow opening (17) for a fluid. A gas space (23) for a working gas... | 05/15/2012 |
| 8096324 | Accumulator To restrain abnormal deformation of a bellows due to a pressure difference between the inside and outside thereof, an outside gas type accumulator includes a pressure difference regulation mechanism (21) having a movable plate (22) supported by a coil ... | 01/17/2012 |
| 8020587 | Piston-in sleeve hydraulic pressure accumulator A piston-in-sleeve accumulator includes a cleaning element positioned on the piston and configured to remove and prevent debris from lodging between the piston and a cylindrical nonpermeable sleeve within which the piston slides. A seal on the piston is positioned t... | 09/20/2011 |
| 7992592 | Spring-tensioned piston accumulator with detent function A piston accumulator (10) comprises a pressure chamber (40) which on one side is closed by a piston (50) axially displaceable in a pipe (20) in order to change its volume depending on the axial position of the piston (50). A detent... | 08/09/2011 |
| 7984731 | Lightweight high pressure repairable piston tie rod composite accumulator A lightweight high pressure repairable piston composite tie-rod accumulator that does not use a load bearing metallic liner. An exemplary accumulator includes composite tie rods that sustain the axial stress induced by pressurization of the accumulator, while the sh... | 07/26/2011 |
| 7975725 | Spring-loaded piston accumulator with locking function A piston accumulator (10) comprises a pressure chamber (40) which is closed on one side by an axially shiftable piston (50) in order to change its volume depending on the axial position of the piston (50). A locking mechanism is provided ... | 07/12/2011 |
| 7971608 | Breathable low pressure accumulator A breathable low pressure accumulator includes a housing with a cylindrical bore formed therein. A piston slides within the bore and includes an elastic piston head. A biasing member urges the piston towards a first end of the bore. At least one passage communicates... | 07/05/2011 |
| 7857006 | Pressure accumulator, especially pulsation damper A pressure accumulator, especially a pulsation damper, includes an accumulator housing (10) and a piston element (28) disposed in it. A bellows-type separative element (30) is supported on the piston part (28) with its one end (32)... | 12/28/2010 |
| 7810522 | Accumulator To prevent abnormal deformation of a bellows, an accumulator has a regulation mechanism for reducing a pressure difference generated when liquid sealed in a liquid chamber and charged gas are thermally expanded at a zero-down time, a seal plate is arranged in an inn... | 10/12/2010 |
| 7770599 | Accumulator To prevent plastic deformation of a bellows due to a pressure difference between inner and outer sides of the bellows in an outside gas type or inside gas type accumulator, a disc-like gasket is held in a floatable state to a surface close to a stay in a bellows cap... | 08/10/2010 |
| 7726344 | Device for dynamic control of a water flow The disclosure relates to a device for dynamic adjustment of a water flow, used to stabilize the operational mode of a thermostatic mixing tap. The inventive device includes a valve consisting of a piston and a return spring forcing the piston into a first position,... | 06/01/2010 |
| 7681598 | Device for dynamic control of a water flow The disclosure relates to a device for dynamic control of a water flow, including the following items in a body: a feed chamber, a discharge chamber and a piston arranged between the feed chamber and the discharge chamber. The piston can be displaced from a first po... | 03/23/2010 |
| 7681597 | Thermostatic mixer with device for dynamic regulation of a water flow The disclosure relates to a thermostatic mixer, including a device for the dynamic regulation of cold water flow which supplies the mixer. A resistance is generated to the flow of cold water supplied to the thermostatic mixer when small flows of mixed water are requ... | 03/23/2010 |
| 7677269 | Gravity-controlled constant-pressure and pressure-regulation device A gravity-controlled constant-pressure and pressure-regulation device includes a canister, a weight block, and a seal head. The canister includes a metal layer, an epoxy resin layer, and a plastic sheet layer. The metal layer serves as an inner lining. The epoxy res... | 03/16/2010 |
| 7661442 | Compact hydraulic accumulator A lightweight, optimally efficient, easily serviced, piston-in-sleeve high pressure accumulator is provided. The accumulator includes one or more cylindrical composite pressure vessel separate end cap manifolds. A piston slidably disposed in a thin impermeable inter... | 02/16/2010 |
| 7658207 | Hydraulic pressure reservoir An hydraulic pressure reservoir having at least one pressure chamber with a fluid connection to a hydraulic circuit. The pressure chamber is formed between a movable partition member carried in a housing and having a pressure limiting valve, and a fixed partition. T... | 02/09/2010 |
| 7591284 | Hydraulic accumulator A hydraulic accumulator, especially a piston accumulator includes an accumulator housing (10) and a separating piston that can be longitudinally displaced in the accumulator housing (10) and divides two working chambers (12) inside the accumulat... | 09/22/2009 |
| 7568504 | Hydraulic cylinders and plug with hydraulic cylinder The invention regards a hydraulic cylinder (1) or a plug comprising a hydraulic cylinder for operation of anchoring and or sealing devices, where the hydraulic cylinder comprising a cylinder chamber (6), a piston head (4) within said cylinder ch... | 08/04/2009 |
| 7516760 | Piston-type accumulator A piston-type accumulator includes a separating piston (24) axially displaced inside an accumulator housing (10) and separating two spaces from one another inside the accumulator housing (10), particularly a gas side (22) from a liquid si... | 04/14/2009 |
| 7478648 | Hydraulic pressure accumulator A hydraulic breaker hammer comprises a housing (10) with a longitudinal bore (12), a cylinder sleeve (14), and a cylinder sleeve (14) engaging rear end cover (16), a hammer piston (15) reciprocally powered in the cylinder sl... | 01/20/2009 |
| 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 |
| 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 |
| 7356990 | Electro hydraulic actuator with spring energized accumulators An electro hydraulic actuator with built-in fail safes is provided. Multiple accumulators are integrated into the actuator to improve reliability and redundancy. One or more accumulators can fail and the remaining accumulators provide sufficient energy to move the a... | 04/15/2008 |
| 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 |
| 7328722 | 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... | 02/12/2008 |
| 7325571 | Pressure container and pressure accumulating/buffer apparatus A pressure container has a steel pipe and an end plate that is formed with a joint portion by allowing its tapered surface to touch a tapered surface of an opening end of the steel pipe so as to block the opening end. The steel pipe has a flange portion which can be... | 02/05/2008 |
| 7322377 | Hydraulic accumulator A hydraulic accumulator includes a piston (3) capable of moving in an accumulator housing (1) in its axial direction and separating a gas side (5) from a liquid side (7) of the accumulator housing (1). Guide elements (9, 17)... | 01/29/2008 |
| 7308910 | Device for damping pressure surges A device for damping pressure surges in a fluid with a housing (10) and a piston (14) that can be longitudinally displaced inside the housing (10) against the pretensioning force of a spring energy store (12). The piston (14) inter... | 12/18/2007 |
| 7270318 | Device at an energy accumulating piston-cylinder tool The present invention relates to an arrangement in an energy-accumulating piston-cylinder device (1, 2) having a piston (2) and a cylindrical casing (1). The invention is characterized by an openable safety valve (1) arranged in the pisto... | 09/18/2007 |
| 7249613 | 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 provided with at least one aperture, for example in a surface th... | 07/31/2007 |
| 7234491 | Device for damping water hammer A device damps water hammers in hydraulic accumulators, in particular in piston accumulators. The device is embodied in the form of the accumulator component which operates as a throttle on a fluid flow and is inserted between internal elements (12) of the ac... | 06/26/2007 |
| 7234490 | Hydraulic accumulator comprising a position indicator A hydraulic accumulator includes an accumulator housing (1) formed of a non-magnetizable material and defining an axial direction of the housing. A separating element (9) can be axially displaced in the accumulator housing (1) and separates two ... | 06/26/2007 |
| 7222597 | Internal combustion engine having a hydraulic device for adjusting the rotation angle of a camshaft relative to a crankshaft A hydraulic device for adjusting the rotation angle of a camshaft relative to a crankshaft in an internal combustion engine. The device has a rotor, with blades arranged around its periphery. A stator is connected in a rotationally secure manner to a drive wheel. Th... | 05/29/2007 |
| 7168535 | Non metallic gas valve assembly for a shock absorber A gas valve assembly for a shock absorber includes a first portion of a first material and a second portion of second material which is less rigid than the first material. The first portion defines a rigid valve assembly body having a threaded portion to mount the v... | 01/30/2007 |
| 7152932 | Fluid power accumulator using adsorption The invention relates to a fluid power accumulator in which the fluid undergoes a state change as the system is pressurized to store energy. A state change can be a phase change, a chemical reaction, or a combination of these. Generally the state change results from... | 12/26/2006 |
| 7152931 | Hydraulic circuit with accumulator A hydraulic circuit includes an accumulator having an inflow passage which introduces a hydraulic fluid which is discharged from a hydraulic pump into a hydraulic fluid chamber and a discharge passage which discharges the hydraulic fluid from the hydraulic fluid cha... | 12/26/2006 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7137491 | Shock absorber non-vibrating check valve assembly A check valve assembly for a shock absorber includes a tapered valve seat and a polygonal check valve which includes a plurality of flat surfaces. Each pair of flat surfaces intersects at a linear engagement surface which slidably engages a cylindrical chamber. When... | 11/21/2006 |
| 7121304 | Low permeation hydraulic accumulator A hydraulic accumulator includes a rigid tank containing a flexible but non-elastic bladder formed of a metal foil and separating the interior of the tank into a gas space and a liquid space. The gas and liquid spaces respectively communicate with exterior sources o... | 10/17/2006 |
| 7108006 | Subsea actuator assemblies and methods for extending the water depth capabilities of subsea actuator assemblies A hydraulic pressure compensation system for valve actuator assemblies is described having particular application for subsea wellhead installations. The compensation system includes at least one valve actuator assembly having a housing that retains a reciprocable pi... | 09/19/2006 |
