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Class 74/89.44 - Lubrication


Subclass of Class 74 - Machine element or mechanism
Definition: Subject matter in which the screw or nut has specific
No. of patents: 63
Last issue date: 12/27/2011


1    
NumberTitleIssue Date
8082814Ball screw device having lubricating device
A ball screw device includes a ball nut rotatably engaged onto a screw shaft for forming a gap between the ball nut and the screw shaft and for receiving a lubricating oil and for forming a helical raceway between the ball nut and the screw shaft, a number of bearin...
12/27/2011
8056428Lubricating element and lubricating unit
The present invention relates to a lubricating element (12) for rolling element tracks, in particular linear systems, with a body composed of a lubricant-storing material, which includes an application section (34) capable of being brought in contact w...
11/15/2011
8051730Ball screw unit with lubrication apparatus
A lubrication apparatus is for a ball screw unit in which the grease state lubricant is used. There is formed a helical guide track in the lubrication apparatus. When the ball screw unit operates, a guide member rotates with the bolt, the grease stored in the guide ...
11/08/2011
8028595Adjusting device for seating and reclining furniture
An adjusting device for seating and reclining furniture includes a basis case, a screw rotatable axis, a guide area, an adjuster and a side cover. A notching is set at the upper end face of the guide area. A slider inside of the adjuster is combined with the upper w...
10/04/2011
7934438Ball screw device having circulating device background of the invention
A ball screw device includes a screw shaft rotatably engaged with a ball nut, and a number of bearing members received between the ball nut and the screw shaft, and a circulating device for circulating the bearing members, the circulating device includes an elongate...
05/03/2011
7788987Self-lubricating ball screw
A self-lubricating ball screw comprises a nut, a screw shaft, at least one lubricating unit and at least one external oil tank. The lubricating unit is disposed in the nut, an end of the lubricating unit protrudes out of the nut and contacts the screw shaft, and ano...
09/07/2010
7748284Lubricating element and lubricating unit
A lubricating element for rolling element tracks, particularly linear motion systems, has a body composed of a lubricant-storing material, which includes an application section capable of being brought in contact with a rolling element bearing surface to supply lubr...
07/06/2010
7650806Feed screw device
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having...
01/26/2010
7634952Rotating nut ball screw unit with lubricating arrangement
The rotating nut ball screw unit with lubricating arrangement has a lubricating device composed of a main body, a collar and a bearing. The main body is provided with several oil holes and is attached to the end surface of the nut. The main body is relatively rotata...
12/22/2009
7587955Lubricating 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 housing is mountable on a movable element of the linear system using a plu...
09/15/2009
7543514Ball 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 oil is not good enough to lubricate the ball nut and the screw shaft or...
06/09/2009
7430933Seal for ball screw and ball screw utilizing same
A seal for a ball screw is provided with a foreign material removing member having a hole of a shape corresponding to a sectional shape of a ball screw shaft taken perpendicularly to an axis thereof to prevent a foreign material from invading from an outside of a ba...
10/07/2008
7431510Pivot bearing with lubricant transmission
A pivot bearing has a radially inner bearing part; a radially outer bearing part, each of the parts defining a conduit for permiting a lubricant to pass through, the radially inner bearing part being supported in a rotary fashion on the radially outer bearing part, ...
10/07/2008
7357048Ball screw drive
A ball screw drive comprising a spindle nut (2) that can be disposed on a spindle (1), said spindle nut (2) comprising on an inner periphery, a ball groove (3) that is arranged along a helix and defines a load-bearing channel (8) f...
04/15/2008
7348698Actuator for operating a transmission control valve of an automatic transmission apparatus
A rotor having magnets composed of rare-earth magnets is rotatably disposed inside an exterior casing, a penetrating aperture is disposed through a first end of the exterior casing relative to a direction of a motor central axis, and a filter is disposed so as to co...
03/25/2008
7328774Lift drive device
A lift drive comprising: a spiral drive element having an axis of rotation, a rack having teeth sized and shaped to be engaged by the spiral drive element, the rack having a longitudinal axis parallel to the axis of rotation, and a motor to rotate the spiral drive e...
02/12/2008
7278333Ball screw device
A ball screw device has a screw shaft which has a shaft rolling groove in a spiral shape formed on an outer surface of the screw shaft, a nut which has a nut rolling groove formed on an inner surface of the nut and opposed to the shaft rolling groove, wherein the sc...
10/09/2007
7278332Linear 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 in an inner surface of the linear motion body, and rolling between t...
10/09/2007
7240763Electric power steering apparatus
An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having...
07/10/2007
7237652Apparatus and method for lubricating feed mechanism of forming machine
A lubrication apparatus that lubricates mechanism of a molding machine. The lubrication apparatus includes a tank for collecting lubrication oil therein, and a lubrication oil supply route for supplying lubrication oil from the tank. ...
07/03/2007
7234368Ball screw device having lubricating structure
A ball screw device includes a ball nut having an inner thread formed by a number of helical groove portions, a screw shaft having an outer thread formed by a number of helical groove portions, for threading with the inner thread of the ball nut, and a number of rol...
06/26/2007
7228751Ball screw mechanism
A ball screw mechanism includes a ball screw shaft of a metal material coaxially connected to a rotary driving source, a nut member of a resin material being screwed onto the ball screw shaft, a plate member fixed to an upper surface of the nut member by screw membe...
06/12/2007
7223084Electric motor driven toggle mold clamping device
The purpose of the invention is to prevent a sticking of lubricant to a ball screw shaft and a scattering to the circumstance in an electromotive toggle mold clamping device. This invention relates to the electric motor driven toggle mold clamping device wher...
05/29/2007
7146870Circulation unit of rolling element with lubrication system
A circulation unit with lubrication system for rolling element includes a lubricant inlet formed with the sliding element and the lubricant inlet communicates with lubricant path such that lubricant can be directly fed to the rollers. The circulation unit has a comp...
12/12/2006
7089819Linear 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
7062987Ball bearing and a continuously variable speed transmission of belt type
A ball screw in a continuously variable speed transmission has an axially immovable pulley half (2) and axially movable pulley half (3) both mounted on a rotary shaft (4). The axially movable pulley half (3) is moved by a ball screw (2...
06/20/2006
7044643Rotary bearing with lubricant passage arrangement, and threaded drive with rotary bearing-supported threaded nut
A rotary bearing has a first lubricant passage having one end which opens in an inner peripheral surface of a radially outer bearing part and another end which is connectable with a lubricant supply, at least one second lubricant passage which leads from an outer pe...
05/16/2006
7036989Roller bearing oil feed device
A roller bearing oil feed device includes a plurality of rolling elements arranged in a plurality of rows in the axial direction between an outer ring and an inner ring, the inner ring being divided for each row of the rolling elements and a ring-shaped spacer being...
05/02/2006
7025169Electric power steering apparatus
An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having...
04/11/2006
7000493Screw device having lubricant applying portion
A screw device having a lubricant applying structure comprises a screw shaft provided with a spiral ball rolling groove, a nut provided with a loaded ball rolling groove having a spiral shape corresponding to the spiral ball rolling groove formed to the screw shaft,...
02/21/2006
6938723Electric power steering apparatus
An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having...
09/06/2005
6880676Feed screw device
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having...
04/19/2005
6865963Apparatus and method for lubricating feed mechanism of forming machine
A lubrication apparatus lubricates a feed mechanism of a molding machine. The lubrication apparatus includes a storage member for storing lubrication oil therein, and a lubrication oil circulation pipe connected to the storage member. ...
03/15/2005
6752245Feed screw device
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having...
06/22/2004
6732600Rotary bearing with lubricant passage arrangement, and threaded drive with rotary bearing-supported threaded nut
A rotary bearing has a first lubricant passage having one end which opens in an inner peripheral surface of a radially outer bearing part and another end which is connectable with a lubricant supply, at least one second lubricant passage which leads from an outer pe...
05/11/2004
6711963Ball screw
One end of a cylinder disposed on the outer periphery of a ball screw shaft is fixed to the end face of a ball nut, while the other end of the cylinder is closed by an end plate to thereby form a lubricant filling space between the end plate and the leading end face...
03/30/2004
6691837Screw actuator with lubricant dosing, and brake calliper
A screw actuator comprises a nut and a screw each comprising helical grooves, said nut and screw engaging each other by rollers or balls which are in contact with said grooves, a lubricant being provided for the grooves and rollers or balls. Integrated in...
02/17/2004
6634246Recirculating-ball nut and screw set with lubricating means
A recirculating-ball nut and screw set mounted with a lubrication device effective in improving the sliding characteristic and also realizing maintenance-free lubrication. The lubrication device is mainly comprised of a lubricating plate accommodated in a...
10/21/2003
6619148Lubricant supply device and rolling member screw apparatus using same
A lubricant supply device comprises application members, a casing and control members. The casing forms a lubricant storage member, which is divided into compartments arranged in the circumferential direction of the lubricant storage member. The number of...
09/16/2003
6601676Self-lubricating ballscrew
A self-lubricating ballscrew has a screwshaft and a ballnut surrounding the screwshaft and provided with a re-circulating path for a plurality of balls which roll between the ballnut and the screwshaft when the ballscrew is in use. Lubrication means are i...
08/05/2003
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