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| Number | Title | Issue Date |
| 8166838 | Actuator for driving movable object and motion guide apparatus for guiding motion of movable object An actuator has a hollow track rail 6 having a slit 8 extending in an axial direction thereof, a movable block 7 disposed inside the track rail 6 to be movable along the track rail, and a ball screw mechanism for moving the movable block ... | 05/01/2012 |
| 7926371 | Linear actuator for a piece of furniture A linear actuator for a piece of furniture, namely a bed or chair comprising a housing (8) of plastic consisting of two parts (8a, 8b) with a joining edge (8c) in the longitudinal direction of the housing. In both end... | 04/19/2011 |
| 7717005 | Slide mechanism of linear transmission apparatus A slide mechanism of a linear transmission apparatus includes an actuating mechanism, a guide screw and a slide mechanism. The slide mechanism includes a fixing base, a primary guide rail, left and right secondary guide rails and a slide element. The fixing base has... | 05/18/2010 |
| 7441956 | Linear guide/feed module with guide body and boom for it A linear guide/feed module has a tubular boom movable along a movement axis, a housing encompassing the tubular boom so that the boom is travelable out of and into the housing along the movement axis, a drive unit for driving the boom to move in relation to the hous... | 10/28/2008 |
| 7389709 | Reverse transfer system ball-screw, and electro-mechanical actuator employing same An electro-mechanical actuator (21) includes a reverse transfer system ball-screw (20). The actuator broadly includes a frame (22), a nut (43) mounted on the frame, at least one magnet (59) mounted on the nut, at least one coil ( | 06/24/2008 |
| 7340972 | Apparatus and method for balancing and for providing a compliant range to a test head A load, such as an electronic test head, is supported. A force sensor detects a force received from the load, the force resulting from the load being imbalanced such that a torque is created about a rotational axis of the load. A source of force provides a counter f... | 03/11/2008 |
| 7258029 | Device for connecting together a roller screw and roller nut assembly to a stationary and moving member A device for connecting together a vertically disposed roller screw and roller nut assembly to a stationary member and moving member includes a bearing housing attached onto a fixed end of the roller screw. The bearing house includes at least one bearing and two bea... | 08/21/2007 |
| 7243563 | Friction applying apparatus and linear guide apparatus having the same A friction applying apparatus and a linear guide apparatus having the same, according to the present invention can uniformly contact allover contacting faces of sliding members to the contacted members so as to reduce abrasion in the sliding members and the contacte... | 07/17/2007 |
| 7241117 | Motor shaft assembly and method A method for assembling a motor shaft with a bearing, a motor housing, and an impeller is disclosed. A motor shaft extension is used to retain the impeller axially on the motor shaft and allows the motor shaft to drive an additional component, such as an impeller, l... | 07/10/2007 |
| 7237448 | Linear guide unit In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangemen... | 07/03/2007 |
| 7222434 | Driving device and measuring instrument A supporting device (300) for supporting a guide rail (200) for guiding a movable member subjected to relative displacement in relation to the base table (3). The supporting device includes, base bodies (410, 510) engaged onto the base ta... | 05/29/2007 |
| 7216559 | Guide actuator with high radial direction load capacity The present invention relates to a new guide actuator with high radial direction load capability, which has the purpose of providing a directional force bearing way to common loading method to make the actuator can bear load and transmit with higher accuracy. On des... | 05/15/2007 |
| 7192116 | Systems and methods for dissipating heat from a fluid ejector carriage A system, method and structures for dissipating heat away from a thermal fluid ejector modules through a thermally-conductive carriage molded from a polymer to the ambient air surrounding the structure upon which the thermally-conductive fluid ejector carriage trans... | 03/20/2007 |
| 7159481 | Ball screw device and linear motion device In a ball screw device comprising a screw shaft and a nut which make relative movement to each other through a multiplicity of balls, as well as in a linear motion device comprising an outer member and an inner member which make the relative movements to each other ... | 01/09/2007 |
| 7146869 | Ball screw device and linear motion device A spacer between adjacent balls of, for example, a ball screw device or a linear motion device has an outer periphery that is concave such that the spacer is elastically deformed to be in substantially circular line contact with the adjacent balls and that a distanc... | 12/12/2006 |
| 7146786 | Electric linear deck lift assembly An electric linear deck lift assembly for raising and lowering in a controlled and accurate manner the cutting deck of a lawnmower to a variety of different heights, including preset heights. An electric motor drives a linear drive rod connected to the cutting deck,... | 12/12/2006 |
| 7141897 | Electric actuator expanded with sensor and electronic brake An electric actuator that is capable of driving a motor in a cylindrical structure, such that the electric actuator itself can be expanded. The electric actuator includes: a motor for driving the electric actuator and a screw cylinder for connecting a shaft of the m... | 11/28/2006 |
| 7109614 | Drive unit for determining a rotation position and/or rotation speed of a drive shaft A drive unit includes a housing and a drive shaft, in particular a spindle. The housing has a bearing which rotatably supports the drive shaft which is axially braced with the bearing by means of a clamping element. A measuring indication is arranged on the clamping... | 09/19/2006 |
| 7089819 | Linear guide apparatus A ball screw has a screw shaft including a screw groove formed in an outer peripheral surface thereof; a nut including a screw groove formed in an inner peripheral surface thereof and screwed together with the screw shaft through a large number of balls rollably dis... | 08/15/2006 |
| 7084358 | Apparatus and method for balancing and for providing a compliant range to a test head A load, such as an electronic test head, is supported. A force sensor detects a force received from the load, the force resulting from the load being imbalanced such that a torque is created about a rotational axis of the load. A source of force provides a counter f... | 08/01/2006 |
| 7062985 | Linear guide unit In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangemen... | 06/20/2006 |
| 7047833 | Feed unit In a feed unit of a rod-type actuating element that is arranged in a housing (2) and guided for axial displacement relative to the housing (2), the feed unit further being a drive motor (4) that effects the displacement of the actuating element ... | 05/23/2006 |
| 7005765 | Liquid-cooled electromotor A liquid-cooled electric motor with a motor shaft, with two bearing plates which are mounted on the end faces of the motor housing and which carry on each side at least one bearing, the motor shaft being mounted rotatably in the bearings, and with at least one rotat... | 02/28/2006 |
| 7000495 | Actuator device with intermediate rollers Actuator device comprising a support (2); a longitudinal drive rod (8), part of the rear end (9) of which is mounted and rotates inside the support, and of which a front end section (17) has an external screw thread (18) and on its... | 02/21/2006 |
| 7000484 | Load beam apparatus operative to prevent improper operation due to off axis loads A beam transducer employs a linear bearing which surrounds the active element of the transducer which is the beam. One end of the bearing is welded to the inactive end of the load beam. The other end of the bearing is not welded, allowing the active end of the beam ... | 02/21/2006 |
| 6988425 | Actuator An actuator comprises a driving force-transmitting mechanism which includes a belt member running over a driving pulley and a driven pulley, and a guide mechanism which includes a plurality of balls which rolls along first ball-rolling grooves formed on a frame, and... | 01/24/2006 |
| 6848326 | Linear guide apparatus The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member | 02/01/2005 |
| 6807877 | Electric actuator A nut member 5 for moving forward and rearward by rotating a feed screw 4 by a stepping motor 28 and a transfer table 7 for transferring a workpiece W are elastically connected by a spring means 24 in transferring of the workpiece ... | 10/26/2004 |
| 6796199 | Drive for machine components such as carriages, gripping devices or the like A drive for machine components has at least one threaded spindle having spindle sections with oppositely oriented axial pitch. Nuts are seated on the at least one threaded spindle and engage the spindle sections, respectively. At least one motor is connected to the ... | 09/28/2004 |
| 6584868 | Slide track structure of a linear platform The present invention is to provide a slide track structure of a linear platform, wherein the center of gravity of the slide track structure of the linear platform may be lowered. In addition, the outer edge of the upper end of the U-shaped guide track is... | 07/01/2003 |
| 6561049 | Linear guide apparatus The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 ... | 05/13/2003 |
| 6472778 | Linear motion unit A linear motion unit (10) includes a runner (14) that is arranged so as to be movable along a rod (12). Provided in front of and/or behind the runner (14) are support units (20) that support the rod (12) relative to a counter-element (18). Provided on the... | 10/29/2002 |
| 6439072 | Ball screw A ball nut 30 has a dowel 60 for circulating balls 50. A cage type retainer 40 is disposed between a screw shaft 20 and the ball nut 30 which engages with the screw shaft 20 through the ball 50. The retainer 40 is provided with a plurality of elongated ho... | 08/27/2002 |
| 6352005 | Two screws double-stroke and screw differential-motion mechanism applied in standard mechanical interface A two screw double-stroke and screw differential-motion mechanism is applied in a standard mechanical interface. The two mechanisms are utilized for the correlation of transmission between screws and nuts and the screw differential-motion, so as to achiev... | 03/05/2002 |
| 6349606 | Reduced backlash translating system Apparatus embodying the invention includes first and second motors coupled to a carriage assembly for moving the carriage assembly back and forth between first and second end points. The first motor is for developing a force to drive the carriage in one d... | 02/26/2002 |
| 6315451 | Slide guide unit A slide guide unit wherein the nut member for applying a driving force to the slider and a sliding contact member for supporting the slider in motion with respect to the track rail are firmly fixed to the slider and which may be manufactured simply at low... | 11/13/2001 |
| 6155717 | Linear movement device and lubricant supplying device used therefor The present invention relates to a linear movement device, for example, a linear guide device, a ball screw, a ball spline or the like in which a track shaft and a slide member is engaged movably relative to each other via a rolling element of a ball, a r... | 12/05/2000 |
| 6149307 | Relatively movable unit with rolling elements A relatively movable unit with rolling elements, or balls, adapted for use in a linear motion guide unit or a ball nut screw assembly. The relatively movable unit has lubricating rings disposed between any adjoining balls to thereby lubricate the balls. I... | 11/21/2000 |
| 6142030 | Actuator and actuator system An actuator has a linearly elongate frame, side, end, and top covers detachably and selectively mounted on side surfaces of the frame, a table mechanism displaceable in the axial direction of the frame in response to energization of an electric motor, and... | 11/07/2000 |
| 6116104 | Actuator A pair of stopper members are mounted on shafts of an actuator in such a manner that stopper members sandwich a table. By making the table come into contact with these stopper members, a stop operation and a determination of a stop position of the table a... | 09/12/2000 |
