| Patents for F15B 5 - Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (494) |
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| 02/17/2010 | CN201407228Y Magnetostrictive displacement transducer hydraulic cylinder |
| 02/03/2010 | CN201396326Y Double-action vane type hydraulic transformer |
| 02/03/2010 | CN201396325Y Double-action vane type hydraulic transformer controlled by servomotor |
| 01/27/2010 | CN101636592A High pressure transducer |
| 01/27/2010 | CN101634316A Hydraulic transformer with safety device |
| 01/14/2010 | DE102009015140A1 Druckreduziervorrichtung Pressure reducing |
| 01/07/2010 | DE202008017580U1 Medientrenneinrichtung, insbesondere Druckübersetzer Media separating device, in particular pressure intensifier |
| 10/28/2009 | CN101566178A Double-acting vane type hydraulic transformer controlled by hydraulic cylinder |
| 10/28/2009 | CN101566177A Double-acting vane type hydraulic transformer |
| 10/28/2009 | CN101566176A Double-acting vane type hydraulic transformer controlled by servo motor |
| 10/08/2009 | DE102008016568A1 Medientrenneinrichtung, insbesondere Druckübersetzer Media separating device, in particular pressure intensifier |
| 09/23/2009 | CN100543628C Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
| 09/17/2009 | DE102008014428A1 Hydraulic force translator for use in e.g. plastic injection molding machine, has valve piston which is controllable by relative motion between hydraulic pistons, where one of hydraulic pistons seals pressure chamber outwards |
| 09/02/2009 | CN101520058A Pressure-type load sensor |
| 07/30/2009 | DE202008003500U1 Hydraulische Druckliefereinheit für einen Kraftschrauber Hydraulic pressure supply unit for a power screwdriver |
| 07/29/2009 | CN101493102A Pressure sensing device adapted to corrosive or explosive atmospheres and with means to filter disturbance frequencies |
| 07/02/2009 | WO2009079785A1 Landing gear uplock mechanism employing thermal phase-change actuation |
| 07/02/2009 | CA2710202A1 Landing gear uplock mechanism employing thermal phase-change actuation |
| 06/18/2009 | DE202008017285U1 Elektrohydraulischer Verstärker Electro-hydraulic amplifier |
| 06/11/2009 | US20090145122 Hydraulic drive system |
| 06/04/2009 | WO2009068703A1 Pneumatic instant transducer |
| 05/07/2009 | WO2009039640A9 A system, apparatus and method for applying mechanical force to a material |
| 05/07/2009 | DE102007051867A1 Electro-pneumatic pressure transducer for use in motor vehicle, has membrane element with two parts, where one part has sealing surface whose hardness minimizes penetration depth of sealing edge |
| 05/06/2009 | CN101424282A Inclined shaft type hydraulic transformer and voltage transformation method |
| 04/02/2009 | WO2009039640A1 A system, apparatus and method for applying mechanical force to a material |
| 04/02/2009 | DE102007044907A1 Method for operating hydro-pneumatic device for pressure transmission, involves displacing hydraulic fluid from storage chamber, and draining hydraulic fluid volume in storage chamber below ventilation opening into storage chamber |
| 04/02/2009 | CA2700946A1 A system, apparatus and method for applying mechanical force to a material |
| 04/01/2009 | CN101398018A Mechanical-hydraulic guiding virtual displacement variable hydraulic transformer and variable method |
| 03/19/2009 | US20090071137 Fluid transmission |
| 03/12/2009 | DE102007042120A1 Pressure medium actuatable cylinder for use as independent tool driving device, has spindle coaxially guided in piston and having spiral recesses, where slope of one of spiral recess is different from slope of another spiral recess |
| 02/12/2009 | DE102007036844A1 Hydropneumatische Vorrichtung zur Druckübersetzung sowie Verfahren zum Betrieb einer hydropneumatischen Vorrichtung zur Druckübersetzung Hydropneumatic arrangement for pressure transmission, and method for operating a hydro-pneumatic device for pressure intensification |
| 02/11/2009 | CN101363459A Hydro-pneumatic pressure transformation device and method for operation |
| 01/28/2009 | CN101354051A Electric control inclined shaft plunger type hydraulic transformer |
| 01/08/2009 | DE102007031282A1 Hydraulic power amplifier for use in intake manifold of internal combustion engine, has return valve for allowing backflow of control fluid from control valve independent of pressure in supply line or closing supply line |
| 01/08/2009 | DE102007031166A1 Hydraulic pressure amplifier for hydraulic fluid, has switching valve connecting low pressure chambers and locking connections from another switching valve, in one switching position, to flow fluid from high pressure circuit to supply line |
| 01/08/2009 | DE102007030400A1 Hydraulic pressure intensifier has cylindrical working chamber and storage space, which are separated by cylindrical tube, where cylindrical tube is arranged inside working chamber and outside storage space |
| 12/03/2008 | EP1931882A4 A fluid transmission |
| 11/05/2008 | CN201144900Y Connection bayonet structure |
| 10/30/2008 | WO2008128830A1 Hydraulic/electric transducer |
| 10/16/2008 | DE102007017665A1 Hydraulic pressure intensifier for machine tool has a second switch valve located between a first selector valve and a low-pressure cylinder |
| 10/09/2008 | WO2008121713A1 High performance transducer |
| 10/09/2008 | DE102007019715A1 Hydraulic power converter for use in hydraulic drive of movable mold clamping plate of plastic injection molding machine, has filling valve controllable by movement of hydraulic piston relative to another hydraulic piston |
| 10/02/2008 | DE102008013374A1 Hydropneumatische Vorrichtung zur Druckübersetzung Hydro-pneumatic device for pressure boosting |
| 09/25/2008 | DE102007054774B3 Electro-hydraulic amplifier comprises a guiding hole with a first cylinder-tight section and a second section which changes in position along the working axis and has a control edge |
| 09/04/2008 | WO2008011092A3 High pressure transducer |
| 07/17/2008 | WO2008085775A1 Control valve and positioner diagnostics |
| 06/26/2008 | US20080149186 Method and apparatus for emission management |
| 06/18/2008 | EP1931882A1 A fluid transmission |
| 04/10/2008 | DE102006045258A1 Hydropneumatic pressure intensifier with stroke and force limiting function used in e.g. automobile engineering, has hydraulic piston and positioning rod whose driving-out stroke is limited by adjusting nut in hydraulic cylinder housing |
| 04/10/2008 | DE102005051999B4 Vorrichtung zum Überwachen des Einnehmens einer vorbestimmten Betriebsstellung, wie einer Betriebsnotstellung, durch ein bewegliches Stellglied und Anordnung mit einem Stellantrieb An apparatus for monitoring of ingesting a predetermined operating position, as a Betriebsnotstellung, by a movable actuator assembly and with an actuator |
| 04/03/2008 | US20080078449 Low Consumption Pneumatic Controller |
| 04/03/2008 | US20080078448 Low Consumption Pneumatic Controller |
| 03/27/2008 | US20080072964 Microfluidic device capable of equalizing flow of multiple microfluids in chamber, and microfluidic network employing the same |
| 03/13/2008 | US20080062199 Host apparatus to set N-up function and control method thereof |
| 02/26/2008 | US7337041 Feedback control methods and apparatus for electro-pneumatic control systems |
| 01/31/2008 | US20080023073 High pressure transducer |
| 01/24/2008 | WO2008011092A2 High pressure transducer |
| 01/17/2008 | DE102006054040B3 Electro pneumatic pressure transformer has valve closing element which overlie in rest position in power-off condition on valve seat between control pressure chamber and negative pressure connection |
| 01/16/2008 | CN101107449A Pneumatic device having a selectively variable orifice |
| 01/02/2008 | CN100359186C Remote process seal with improved stability in demanding applications |
| 11/01/2007 | US20070251586 Electro-pneumatic control valve with microvalve pilot |
| 10/31/2007 | EP1848893A1 Pneumatic device having a selectively variable orifice |
| 10/25/2007 | DE102006018314A1 Verfahren zur Bestimmung eines Betätigungsdruckes eines Betätigungsmittels A method for determining an operating pressure of an actuating means |
| 10/25/2007 | DE102006018313A1 Verfahren zur Bestimmung der Position eines Schaltelementes A method for determining the position of a switching element |
| 10/18/2007 | DE102006006585B3 Wandler eines elektrischen Eingangssignals in ein pneumatisches Ausgangssignal Converting an input electrical signal into a pneumatic output signal |
| 08/16/2007 | US20070186974 Transducer of an electrical input signal into pneumatic output signals |
| 06/26/2007 | US7234483 Electro-pneumatic air pressure regulator |
| 05/23/2007 | CN1969127A Feedback control methods and apparatus for electro-pneumatic control systems |
| 05/16/2007 | EP1599360B1 Running board |
| 05/03/2007 | DE102005051999A1 Device for monitoring pre-defined operating position, has transmitter for sending pre-defined control element position signal to evaluation unit and power supply whereby energy is delivered to transmitter |
| 05/01/2007 | US7210502 Microvalve device suitable for controlling a variable displacement compressor |
| 04/12/2007 | US20070079871 Pneumatic relay and instrument housing combination |
| 04/11/2007 | CN1947078A Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
| 04/04/2007 | EP1769159A1 Feedback control methods and apparatus for electro-pneumatic control systems |
| 03/29/2007 | DE202007001504U1 Hydraulische Einpreßvorrichtung mit reduzierter Leistungsaufnahme Hydraulic stuffing device with reduced power consumption |
| 03/08/2007 | WO2007025353A1 A fluid transmission |
| 03/08/2007 | CA2634817A1 A fluid transmission |
| 03/07/2007 | EP1760378A2 Vacuum actuator with integrated pressure sensor |
| 02/14/2007 | EP1751640A1 Method and apparatus for operating a control valve by means of a control loop and performing diagnostics of the same |
| 10/12/2006 | WO2005016766A3 Vacuum packaging appliance spice rack |
| 08/24/2006 | WO2006088563A1 Pneumatic device having a selectively variable orifice |
| 08/24/2006 | DE10019248B4 Ventilpositionsgeber mit Strom/Pneumatik-Wandler und Verfahren zum Steuern eines Ventilpositionsgebers Valve position transmitter with power / pneumatic converter and method for controlling a valve position transmitter |
| 08/02/2006 | CN2802146Y Electric-gas converter |
| 07/19/2006 | CN2797712Y Air (gas) pressure testing module and loop thereof |
| 06/08/2006 | US20060118169 Lead-lag input filter arrangement with adjustable initial conditions for electro-pneumatic control loops |
| 06/07/2006 | CN2786599Y Portable liquid pressure tester |
| 03/28/2006 | US7017346 Device for transmitting a displacement of an actuator using an elastomer ring |
| 03/15/2006 | CN1245580C Feed-back mechanism and valve positioner |
| 03/02/2006 | DE10145620B4 Ventil zum Steuern von Flüssigkeiten Valve for controlling fluids |
| 02/14/2006 | US6999853 Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
| 12/29/2005 | WO2005124160A1 Feedback control methods and apparatus for electro-pneumatic control systems |
| 12/29/2005 | CA2568912A1 Feedback control methods and apparatus for electro-pneumatic control systems |
| 12/15/2005 | US20050278074 Feedback control methods and apparatus for electro-pneumatic control systems |
| 11/17/2005 | WO2005109140A1 Method and apparatus for operating a control valve by means of a control loop and performing diagnostics of the same |
| 11/01/2005 | CA2105705C Electro-pneumatic converter |
| 10/18/2005 | US6957127 Dynamic current-to-pneumatic converter and pneumatic amplifier |
| 09/29/2005 | US20050211515 Anti-vibration mount apparatus, exposure apparatus, and device manufacturing method |
| 07/06/2005 | CN1209559C On-line power monitor method for hydraulic system |
| 04/27/2005 | CN2695705Y Feedback mechanism and valve positioner |
| 03/24/2005 | US20050061370 Vacuum packaging appliance spice rack |