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| Number | Title | Issue Date |
| 8047122 | Tensioner assembly with multiple cylinder stroke system A tensioner assembly with a hydraulic fluid and gas is described herein. The tensioner assembly can accurately and reliably detect the position of a cylinder rod in each cylinder of the assembly by using a laser. The data obtained from the laser can be reliable and ... | 11/01/2011 |
| 7963208 | Mounting mechanism for a position-detecting sensor A position-detecting sensor to which a mounting mechanism for a position-detecting sensor is applied is equipped with a holder capable of accommodating a sensor element in which a magnetic sensor or the like is disposed, and includes a flange on a lower end of the h... | 06/21/2011 |
| 7650828 | Piston and a fluid operated setting device connected therewith A piston for a setting device operated by fluid power is suggested. The piston includes a support body having an annular recess with an axis coinciding with the longitudinal axis of the piston, such recess having at least one annular permanent magnet arrangement the... | 01/26/2010 |
| 7631592 | Position measuring system for a hydraulic cylinder This invention relates to a position measuring system for a hydraulic cylinder, which comprises at least one sensor, one magnet and a piston rod with a metallic core of high magnetic susceptibility and with a groove structure in substantially axial direction, wherei... | 12/15/2009 |
| 7493847 | Fluid pressure cylinder with position detecting device In a fluid pressure cylinder with a magnetostriction type position detecting device for detecting an operating position of a piston using the position detecting device, the fluid pressure cylinder is provided with a simple and rational design structure without provi... | 02/24/2009 |
| 7472639 | Linear compressor A compressor includes a sensor configured to detect a position of a piston; a sensor core configured to reciprocate within the sensor and with the piston; and a core supporting member configured to support the sensor core. The core supporting member is injection mol... | 01/06/2009 |
| 7437988 | Piston-cylinder device with position sensing means A pressure activated piston-cylinder device includes a cylinder barrel with a cylinder bore, a piston with a piston rod movably guided in the cylinder bore, and a piston position sensing and indicating device. The piston position sensing and indicating device includ... | 10/21/2008 |
| 7372708 | Position detecting switch fixture for cylinder A position detecting switch fixture for cylinder, having a pair of clamping reinforced plates at both ends of a mounting band, and clamping/holding a position detecting switch between these plates by a clamping screw. A holder is installed between the pair of clampi... | 05/13/2008 |
| 7367257 | Hydraulic cylinder with position encoder An actuator has a position encoder provided by a helical groove formed in the piston rod. The groove is filled with a material of different magnetic characteristics to provide a smooth exterior surface and a varying discernible signal as the rod moves relative to th... | 05/06/2008 |
| 7357466 | Braking force generator for a hydraulic vehicle brake system In a brake force generator for a vehicle hydraulic brake system having a force input element, which is connectable or connected to a brake pedal and displaceable in a base housing of the brake force generator, a master cylinder, in which a primary piston is displace... | 04/15/2008 |
| 7350423 | Real time usage monitor and method for detecting entrapped air A dispensing system for feeding paste through a screen onto a workpiece monitors the position of a piston applying pressure to the paste with a linear variable differential transformer and sets limits on the slope of the piston displacement is a measure of the feed ... | 04/01/2008 |
| 7348542 | System and method for detecting an intensity of light A system and a method detect an intensity of light within an interior of a compartment and/or of an end cap to locate a position of a movable element within the interior of the compartment. A platform is attached to interior walls of the end cap for positioning a li... | 03/25/2008 |
| 7337805 | Valve with adjustable stop An adjustable mechanism for a valve or actuator is provided. The adjustable mechanism cooperates with one or more pistons, which in turn cooperates with a valve element to limit the axial displacement of the valve element relative to the valve seat. The adjustable m... | 03/04/2008 |
| 7335085 | Entertainment and stress relief disk A device is described that possesses an overall shape that comfortably fits into a user's hand, and in particular, can be manipulated by the fingers. The device is fabricated of a pliable material that readily can be manipulated by manual pressure, yet holds its equ... | 02/26/2008 |
| 7321185 | Active multistable twisting device Two similarly shaped, such as rectangular, shells are attached to one another such that they form a resulting thin airfoil-like structure. The resulting device has at least two stable equilibrium shapes. The device can be transformed from one shape to another with a... | 01/22/2008 |
| 7318313 | Switch A switch in particular for a master cylinder unit, for opening and/or closing an electrical circuit, for example, for switching on the brake lights, comprises a casing suitable for being housed in a compartment of the cylinder body, a first electrical contact fixed ... | 01/15/2008 |
| 7316176 | Remote monitor system for a longitudinally positionable control bar A remote monitor system for a longitudinally positionable control bar having position indicating indicia thereon including a housing receiving the control bar therein and having an aperture in a sidewall communicating between the control bar and an exterior housing ... | 01/08/2008 |
| 7294823 | System and method for detecting a position of a movable element A system and a method detect a position of a movable element within an interior of a compartment. The interior of the compartment has a light source, a light sensor, a base, a support and/or a movable element. The base is located between and/or is connected to the l... | 11/13/2007 |
| 7293967 | Pump apparatus A constant rate discharge pump comprises a rotary shaft which is rotatable together with a rotary driving source, a piston which is displaceable in an axial direction in a pump chamber of a body by the rotation of the rotary shaft and which has a tapered surface hav... | 11/13/2007 |
| 7290476 | Precision sensor for a hydraulic cylinder A sensor mountable within a hydraulic cylinder provides a precision signal indicative of the position of the piston. The sensor includes a flexible connector attached between the cylinder piston and a converting element for sensing the piston displacement. The conve... | 11/06/2007 |
| 7284472 | Hydraulic cylinder A hydraulic cylinder assembly includes a transducer having a wand and a wiper assembly, wherein the wiper assembly is positioned a predetermined distance from an end of the wand for providing a desired startup resistance. A tube includes a piston contained therein f... | 10/23/2007 |
| 7284318 | Apparatus for mounting semiconductor chips An apparatus for mounting semiconductor chips has a pick and place system arranged stationary in vertical direction for the picking, transport and placement of a semiconductor chip onto a substrate. The pick and place system comprises a bondhead with a chip gripper ... | 10/23/2007 |
| 7280937 | System and method for detecting an axial position of a shaft A shaft comprises a hardened outer metallic layer having a first hardness level with a generally uniform radial depth. A first strip extends in a generally longitudinal direction in the outer metallic layer. The first strip has a second hardness level different from... | 10/09/2007 |
| 7275474 | Optical position sensing and method In a variable displacement type hydraulic pump/motor assembly including at least one internally movable component, such as a yoke, a swashplate, and the means for moving the swashplate, the improvement includes imparting on this component absolute location indicia m... | 10/02/2007 |
| 7255037 | Switch A switch is disclosed comprising a housing formed with a chamber along which a ball can roll. An element having a pair of arms is pivotally mounted within the housing, with one arm either side of the ball, such that an inclination of the switch causes the ball to mo... | 08/14/2007 |
| 7249555 | Actuator having the function of control of operation displacement This invention is an actuator having the function of control operation displacement. The invention comprises of cylinder (100), pistons (160), a rotating axis (140) rotatably mounted through the wall of the cylinder (100), a power transmi... | 07/31/2007 |
| 7250753 | Sensor attachment mechanism for fluid pressure cylinder Exemplary embodiments of the invention provide a sensor attachment mechanism capable of attaching a position detecting sensor having directivity in a proper direction to a fluid pressure cylinder having a rail extending along the length of a cylinder tube on the out... | 07/31/2007 |
| 7241120 | Piston machine with ported piston head A piston machine includes a cylindrical wall (2) defining a swept volume (1) and having a plurality of gas inlet openings (5), and a piston (3) reciprocating in the swept volume (1), and the piston head (12) of which is form... | 07/10/2007 |
| 7234386 | Three chamber hydraulic cylinder for an active vehicle suspension with integrated load leveling A hydraulic actuator for an active of semi-active vehicle suspension system has a cylinder with a piston therein. A piston rod is attached to the piston and extends out of the cylinder. First and second chambers are formed on opposites sides of the piston enabling t... | 06/26/2007 |
| 7225055 | Control device, a control module, a module battery and a control system A control device for the control of a module battery, comprising a first external bus interface for the reception of external control commands from a higher level control and an internal bus interface for an internal bus, by way of which battery modules connected wi... | 05/29/2007 |
| 7219781 | Electromagnetic suspension system An electromagnetic suspension system comprises a universal joint mechanism for permitting radial movement of a cylinder relative to a center yoke while preventing axial movement of the cylinder relative to the center yoke. Since the cylinder is capable of radial mov... | 05/22/2007 |
| 7210365 | Guide section with toothed rack A guide section (1) for guiding a slide for a power tool along a longitudinal axis (A) with a separate axial toothed rack (3) for longitudinal advance of the slide having the toothed rack (3) arranged in an outwardly open receiving groove (4 | 05/01/2007 |
| 7204035 | Displacement measuring system for a piston-cylinder assembly A piston rod is guided with freedom of axial movement in a cylinder, where the position of the piston rod is detected by a first position-measuring device, which travels along with the piston rod, and by a second position-measuring device on the cylinder side. The t... | 04/17/2007 |
| 7202426 | Master cylinder position switch A clutch assembly having a master cylinder that includes non-contacting position switches is disclosed. The master cylinder controls a slave cylinder that shifts the release bearing of the clutch system. A cruise control interrupt switch and an ignition system inter... | 04/10/2007 |
| 7197974 | Position sensor A position sensor includes a stationary frame supporting a rotatable spool onto which a cable is wound in a plurality of individual windings. A distal end of the cable extends through a lead guide for attachment to an object whose position is desired to be sensed. A... | 04/03/2007 |
| 7197424 | Position sensing system for moveable member A method of monitoring a position of a movable member having a surface is provided. The method includes sensing an image of a portion of the surface of the movable member and identifying a stored image in a memory corresponding to the sensed image. The method furthe... | 03/27/2007 |
| 7186094 | Method and apparatus for measuring work performed by a compressor An apparatus and method for monitoring a reciprocating member of a reciprocating piston compressor is presented. The apparatus and method provide a means for measuring parameters of the reciprocating member, such as road load or cross-head temperature and the like, ... | 03/06/2007 |
| 7180053 | Apparatus, a system and method for determining a position within a cylinder An apparatus, a system and a method are provided for monitoring position of a machine element within a mechanical system and/or cleaning a machine element. A light source and sensor may be positioned within a cylinder. The sensor may detect the intensity of light wi... | 02/20/2007 |
| 7178446 | Cylinder rod with position sensor surface markings A cylinder rod with wear-resistant surface markings is provided. The cylinder rod may include a rod substrate, a thermal-spray coating disposed on a surface of the substrate, and one or more surface markings disposed on the coating at predetermined locations along t... | 02/20/2007 |
| 7180227 | Piezoelectric o-ring transducer An o-ring sealing device, molded with an imbedded piezoelectric element, for use in vacuum systems. The imbedded element, of a circumferential length, has an oblong cross-sectional shape, the oblong shape having a pair of ends for externally connecting to a signal p... | 02/20/2007 |
