|
Match
|
Document |
Document Title |
|
|
7614318 |
Recirculating ball screw and nut drive
A recirculating ball screw and nut drive including a spindle, a spindle nut guided on the spindle, balls guided between the spindle and the spindle nut, in a working passage defined by grooves of...
|
|
|
7610828 |
Flight control surface actuator assembly including a free trial mechanism
A flight control surface actuator includes a mechanism that enables the actuator translation member to be selectively decoupled from the actuator rotating member. The actuator includes an actuation...
|
|
|
7594450 |
Quick-releasing linear actuator
A quick-releasing linear actuator suitable for electric hospital beds includes a motor, a transmission device, a clutch device and a pulling arm device. With the pulling of the pulling arm of the...
|
|
|
7591205 |
Ball screw and a method for assembling the same
A ball screw includes a screw shaft 1 , a nut 2 screwed to the screw shaft 1 via balls 3 rollably charged to a ball rolling path 5 in a spiral shape, a ball return path 6 for circulating...
|
|
|
7587955 |
Lubricating unit
A lubricating unit for rolling element tracks of a linear system includes a lubricating element housing in which a receiving space for a lubricating element is formed, the lubricating element...
|
|
|
7587954 |
Ball screw
Ball screw having a spindle nut ( 2 ) arranged on a spindle ( 1 ), together with balls ( 3 ) which are arranged in a series and are capable of rolling in a helical ball track ( 4 ), the helical...
|
|
|
7578214 |
Preload structure for a ball screw
A preload structure for a ball screw in the inner surface of a nut is formed a helical groove whose lead is different from the lead of the adjacent helical groove to produce a lead deviation...
|
|
|
7578211 |
Leadscrew drive with annular-shell leadscrew
A leadscrew drive has a leadscrew follower, and a leadscrew. The leadscrew is formed as an elongated annular leadscrew shell having a thread-form outer surface. The leadscrew may be fabricated by...
|
|
|
7552662 |
Novolute geometry for power gears
Within the systems used to transmit power and or movement between two shafts, toothed wheels can be used. Also, pairs of screws with their complementary threads engaged can be used. A geometry is...
|
|
|
7543516 |
Dynamic lead screw thread engagement system and method
A system and method for automatically aligning the threads of a lead screw with the threads of a screw drive mechanism, the screw drive mechanism operating to translate the rotational motion of the...
|
|
|
7543514 |
Ball screw device having lubrication warning device
A ball screw device includes a number of bearing members engaged between a ball nut and a screw shaft, and a warning signal generating device for generating a warning signal when the lubricating...
|
|
|
7536929 |
Ball screw and method for producing a spindle nut, in particular of a ball screw
Method for producing a spindle nut of a ball screw, by provided the circumference of the nut with at least one through-opening for receiving a deflecting piece for balls of the ball screw. A hole...
|
|
|
7533593 |
Ball screw unit with dust cleaning and ball deflecting element fixing mechanism
A ball screw unit with dust cleaning and ball deflecting element fixing mechanism includes an annular inlaid slot along the inner surface of a nut proper proximate to the outside of a ball...
|
|
|
7530283 |
Ball screw mechanism
Between two mutually adjoining load balls 5 , there is interposed a retaining piece 10 having two concave surfaces 11 which are respectively opposed to the two adjoining load balls 5 . The...
|
|
|
7530282 |
Ball screw apparatus
A ball screw apparatus of a screw shaft circulating-type includes a nut having a first groove formed in an inner peripheral surface thereof, a screw shaft having a second groove formed in an outer...
|
|
|
7523682 |
Ball screw device having a ball guide member
A ball screw device includes a screw shaft threaded with a ball nut which has two channels and an opening, a guide member is engaged into the opening of the ball nut and has two curved pathways...
|
|
|
7523681 |
Ball screw device having deflecting member background of the invention
A ball screw device includes a ball nut having an inner thread formed by a number of helical groove portions and helical ridges, and an opening and a depression communicating with each other, and a...
|
|
|
7520193 |
Ball screw assembly
A ball screw assembly, wherein the circulate component is positioned in the nut by inserting a protrusion in a notch, so that the circulate component is positioned easily, and the problem of...
|
|
|
7516681 |
External circulation type ball screw
An external circulation type ball screw comprises a screw, a nut, rolling elements and a return member. The nut is a hollow structure mounted on the screw. The rolling elements are received in the...
|
|
|
7500412 |
Speed nut and drive gear assembly
An assembly which includes a rod having an outer peripheral surface. There is also a nut having an axial aperture with an inner peripheral surface moveably engageable with the peripheral surface on...
|
|
|
7493837 |
Partition room and spacer ball for ball screw unit
A ball screw unit has a plurality of partition-rooms each of them accommodating a spacer ball interposed between two load carrying balls. The partition room is formed into two oblique frustum...
|
|
|
7487692 |
Guiding device for ball nut
A ball nut includes a nut member having an inner thread formed in a bore for threading with a screw member, the nut member includes a recess and an opening communicating with the bore of the nut...
|
|
|
7484782 |
Multi-axis pick and place assembly
A pick and place assembly for picking up and positioning an article wherein a hollow spindle carrying a head for receiving vacuum for picking up an article, via a vacuum directed through the...
|
|
|
7478451 |
Feed control device for plumbing tools
A snake feeding device comprises a base having opposite ends, an actuator pivotally mounted on the base, and first and second sets of drive rolls spaced apart in the direction between ends of the...
|
|
|
7475584 |
Servo-drive system and continuous finishing system of press
A servo drive system of a press machine has a pair of servo motors which can generate necessary ram pressure by compositing and using a torque based on the same speed-torque characteristics. The...
|
|
|
7474176 |
Sliding screw arrangement
The present invention relates to a sliding screw arrangement ( 14 ) for transformation of the rotational movement of a threaded axis ( 13 ) into a linear movement of the sliding screw providing...
|
|
|
7472619 |
Gear unit
A gear unit includes a housing, two shafts arranged parallel with one another and each supporting a helically cut toothed gear, and two pairs of bearings supported by or relative to the housing in...
|
|
|
7464620 |
Actuator
An actuator for an automotive seat that includes two main assemblies: (1) a motor assembly; and (2) a gearbox assembly. The gearbox assembly includes multiple stages of gear reduction and a...
|
|
|
7461572 |
Rolling body screw device
A return pipe is constituted by combining a pair of return pipe halves split along a non-load passage. A pipe hold down member is fixed to a nut member so as to be astride the return pipe, fixing...
|
|
|
7458292 |
Catch nut
A threaded drive has a threaded spindle having a longitudinal axis, a supporting nut which is in a screw engagement with the threaded spindle with a first clearance and which is rotatable relative...
|
|
|
7444894 |
Linear actuator with wear-resistant ceramic bushing
An actuator including a threaded shaft and a carriage having a shaft engaging portion coupled to the threaded shaft. The carriage is moveable in a direction parallel to an axis of the threaded...
|
|
|
7421922 |
Device for linearly moving a useful mass
A device for linearly moving a useful mass is described. Typically, when a large useful mass is moved, relatively large forces are transferred by a spindle or a toothed rack to the corresponding...
|
|
|
7419303 |
Ball connecting body for a rolling motion apparatus
A ball connecting body for a ball screw or a linear guide-way, comprises spacers, guide linking members, and connecting members. The spacers are interposed between two adjacent balls, thereby...
|
|
|
7415906 |
Manually actuated positioning device with high resolution and large range of motion
A linear stage having a screw-nut assembly is actuated by the rotational motion of the screw. A mechanism, which is an integral part of the nut, quickly disconnects the screw and the nut, allowing...
|
|
|
7412910 |
Mechanism for transforming a rotational movement into a linear movement
A mechanism for transforming a rotational movement into a linear movement, comprising a non-deformable nut, that is prevented from rotating but not from axially moving, a radially deformable...
|
|
|
7390241 |
Linear motion apparatus and method for manufacturing thereof
A linear motion apparatus has a guide shaft including a spiral-shaped or linear-shaped rolling element rolling groove, a movable body including a spiral-shaped or linear-shaped rolling element...
|
|
|
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...
|
|
|
7372625 |
Device for retaining optical components
A device for retaining optical components includes a number of open orifices disposed next to one another in an arrangement. A raceway corresponding to the arrangement is provided, the raceway...
|
|
|
7363835 |
Ball screw apparatus
A ball screw apparatus includes: a screw shaft having a screw groove, a nut having a screw groove and holes, a number of balls rollably provided between the screw grooves, and a ball circulating...
|
|
|
7350977 |
Double-row ball bearing and bearing device for supporting pinion shaft
A ball bearing with double raceway rotatably supports a pinion shaft having a pinion gear on its one end. This ball bearing with double raceway is provided with: an outer ring member having a...
|
|
|
7350434 |
Ball screw device
The invention relates to a ball screw device in which a screw shaft and a nut member are threadedly engaged with each other through a number of balls. In such a ball screw device, an inner surface...
|
|
|
7346992 |
Hand-held power tool with angle drive
A hand-held power tool ( 2 ) includes an angle drive ( 20 ) for connecting the motor-driven driving shaft ( 6 ) and the driven shaft ( 10 ) connected with a tooth holder ( 24 ) for joint rotation...
|
|
|
7337690 |
Leadscrew assembly with a wire-wound leadscrew and a spring-pin engagement of a drive nut to the leadscrew
A leadscrew assembly includes a leadscrew having an elongated shaft with an outer lateral surface and a rotational axis, and a leadscrew thread formed of a thread wire helically wrapped in...
|
|
|
7337689 |
Ball screw mechanism, machining method for joint between nut and ball circulation piece, and electric power steering device
A ball screw mechanism including a screw shaft with a screw groove formed on an external surface, a nut with a screw groove formed on an internal surface, and plural balls held in the grooves. A...
|
|
|
7322256 |
Ball screw mechanism for electric power steering apparatus
A first ball circulating hole and a second ball circulating hole for connecting a circulator are bored midway at a screw groove formed on an inner circumference of a ball nut, an intermediate...
|
|
|
7313978 |
Linear motion device associated to a worm
A linear motion device ( 10 ) associated to a worm ( 14 ) including a body ( 12 ) internally provided with a housing seat for partially receiving a worm having a plurality of grooves, a mobile...
|
|
|
7309073 |
Steering system
A rack shaft has a rolling contact surface on the opposite side of rack teeth across an axis line X, and a pair of slanted surfaces extending in parallel with the axis line across the rolling...
|
|
|
7305902 |
Ball screw device
A ball screw device comprises a screw shaft, a nut externally mounted on the screw shaft, and a multiplicity of balls interposed between thread grooves of the screw shaft and the nut. The screw...
|
|
|
7278332 |
Linear motion device
A linear motion device has: a linear motion body externally fitted onto a shaft and making a relative linear motion along the shaft; a plurality of balls retained in a rolling element groove formed...
|
|
|
7270026 |
Differential assembly
A differential having a differential case, a pair of side gears disposed in the differential case and a biasing element disposed between the side gears to force the side gears against the...
|