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| Number | Title | Issue Date |
| 7788988 | Drive assemblies A drive assembly for providing two outputs from a motor to actuators or the like has a first drive shaft connected with the motor via a torque limiter and a reduction gear. A high efficiency spur gear also connects the motor with a second, parallel drive shaft via a... | 09/07/2010 |
| 7357216 | Electric power steering apparatus A ball bearing 34 serving as a support reference for a pinion shaft 2 is located directly under a worm wheel 51. Thus, even when a temperature change occurs around the electric power steering apparatus, the engagement position between the worm w... | 04/15/2008 |
| 7258036 | Bi-directional electric motor with endplay structure An endplay structure is provided for controlling endplay of a shaft 25 of a motor 19. The endplay structure includes a body 22 including a generally elliptically shaped recess 26 therein. The recess is constructed and arranged to be dispo... | 08/21/2007 |
| 7225698 | Modular transmission The invention relates to a modular transmission that can be combined with a drive module having an output shaft. The modular transmission comprises at least one worm-gear module that can be coupled directly to the drive module output shaft by an insertable clutch an... | 06/05/2007 |
| 7200894 | Roller Roller (1), particularly a castor-type roller, with rotational movement of a running wheel (12), with an operating shaft (20) which passes through a control cam (19) of the roller (1) and on which an electric motor (37) acts... | 04/10/2007 |
| 7201075 | Electric power steering apparatus An electric power steering apparatus having a displacing mechanism in which a fitting hole potion is provided to a gear housing for fitting with and holding a bearing to which a worm shaft for transmitting rotating force of a steering assisting motor to a steering s... | 04/10/2007 |
| 7048088 | Electric servo-assisted steering system for motor vehicles An electric power assisted steering system for motor vehicles having a worm gear mechanism is operatively connected to a drive shaft of an electric drive motor. A radial load is applied to the worm by a prestressing device, the prestressing device being configured a... | 05/23/2006 |
| 6937747 | System and method for capturing non-audible information for processing According to one embodiment of the present invention, a system for capturing non-audible information for processing thereof is disclosed. The system comprises an optical capture device that is operable to optically scan an area. The optical capture device is also op... | 08/30/2005 |
| 6832662 | Electric motor assist type power steering apparatus An electric power steering apparatus with an electric motor generating an assistant steering force for transmission to the steering system, a worm shaft rotated by the electric motor, a worm gear on the worm shaft that rotates therewith, a worm wheel rotated by the ... | 12/21/2004 |
| 6708796 | Electric power steering apparatus An electric power steering apparatus in which a shaft of a worm interlocking with rotation of a motor for steering assistance is movable in a radial direction, a pressing body for pressing the worm toward a worm wheel is provided, and the pressing body is provided w... | 03/23/2004 |
| 6698306 | Multishaft index table This multishaft index table comprises: a drive shaft having a plurality of worms arranged in series in its axial direction; a plurality of worm wheels respectively meshed with the worms; at least one motor; and at least one rotation transmitting member fo... | 03/02/2004 |
| 6513398 | Electromotive adjustment assembly An electromotive adjustment assembly, includes at least two spindles disposed in parallel spaced-apart relationship, and a motor unit coupled in driving relationship with the spindles for operating the spindles.... | 02/04/2003 |
| 6450056 | Motor having speed reduction device In a motor having a motor body and a speed reduction devise composed of gear housing, a worm wheel, worm shaft with a worm, and first and second bearings rotatably supporting the worm shaft on opposite sides of the worm, the first bearing on a side of the... | 09/17/2002 |
| 6223615 | Actuating electromotor for technical devices, in particular in motor vehicles The subject matter of the invention is an electric motor-driven servo-drive for use in technical means, especially motor vehicles, with a small electric drive motor (2) with a motor shaft (4) which is provided with a gear form-fit element (3) at at least ... | 05/01/2001 |
| 6193014 | Pre-spinning and lubricating system for worm drive power transmissions and bearing assembly components An apparatus for a ball bearing or needle bearing enclosure having an outside hardened raceway that accommodates two separate compliments of ball bearings located at each end of the raceway to engage with and support a central pin that protrudes in a cone... | 02/27/2001 |
| 5901611 | Pre-spinning and lubricating system for worm drive power transmissions and bearing assembly components An apparatus for a ball bearing or needle bearing enclosure having an outside hardened raceway that accommodates two separate compliments of ball bearings located at each end of the raceway to engage with and support a central pin that protrudes cone shap... | 05/11/1999 |
| 5875681 | Motorized reduction gear unit, in particular for driving a screen wiper in a motor vehicle A motor vehicle screen wiper drive unit is a motorized reduction gear unit comprising a reduction gear train between a driving shaft, driven by a motor, and a driven shaft. The gear train comprises at least one worm fixed to the driving shaft and meshing ... | 03/02/1999 |
| 5794480 | Device for driving of sliding roofs, window raisers, or the like A device for driving of sliding roofs, window raisers, or the like, especially of motor vehicles, with a reversible drive motor (1) and a worm gear pair on an output side of the drive motor, with a shaft of a worm gear (2) forming an extension of the moto... | 08/18/1998 |
| 5765440 | Double-acting dynamic back clearance relief driving system The present invention relates to a double-acting type dynamic back clearance relief driving system having two sets of worm shafts coupled with a worm gear, one worm shaft set acting as a prime mover worm shaft and the other acting as a displacement contro... | 06/16/1998 |
| 5598749 | Table turning apparatus A table-turning driving apparatus comprises a pair of first and second worm shafts 16 and 17 which engage a driving shaft through gears and which is rotated in the same direction of rotation as that of the driving shaft. One 16 of the worm shafts is fixed... | 02/04/1997 |
| 5499551 | Double-acting type dynamic back clearance relief driving system The present invention relates to a double-acting type dynamic back clearance relief driving system having two sets of worm shafts coupled with a worm gear, one worm shaft set acting as a prime mover worm shaft and the other acting as a displacement contro... | 03/19/1996 |
| 5392666 | Auto correction device for wearing end play in worm gear set An auto correction device for wearing end play in worm gear set has a correction worm gear, two linking gears and auxiliary linking gears to help power transmission in a smooth manner. The correction worm gear further includes a threaded thrust block, an ... | 02/28/1995 |
| 5353881 | Counter-rotating twin shaft system for gardening machines A gardening utility machine having a counter-rotation twin shaft system can perform multiple types of work required for gardening (tilling, soil removal, weeding, raking and shredding of leaves), snow/ice removal and for power de-thatching and mowing of l... | 10/11/1994 |
| 5265488 | Double-acting type dynamic back spacing removed driving system A double-acting type dynamic back spacing removed driving system comprises non-reversible transmission worm gear and worm set including two sets of worms coupling with worm gear. When the system is driven, one prime worm continues applying rotary driving ... | 11/30/1993 |
| 5145467 | Geared motor for the drive of components, such as motor-vehicle accessories, particularly an opening roof This geared motor comprises an outlet shaft (2) of the motor (1), carrying two coaxial screws (3, 4) offset axially and of mutually opposed screw pitch, two gearwheels (5, 6) located on either side of the shaft and each interacting with a screw (3, 4), an... | 09/08/1992 |
| 5090267 | Indexing apparatus An indexing mechanism includes an index output shaft connected to a table or other apparatus for rotation therewith. A pinion is operatively connected to the shaft for rotation therewith to transmit rotational force to the table or apparatus. The pinion i... | 02/25/1992 |
| 4754660 | Reduction gearing device for an automobile accessory motor A reduction gearing device for automobile accessory motor comprises first and second worms coaxially formed on a worm shaft in different thread directions, a pair of first and second intermediate gears each composed of two gear members, with one gear of e... | 07/05/1988 |
| 4750383 | Staggered combination gears Method of dispersing unit pressure loads on a worm gear meshing with a plurality of worm wheels. Worm wheels, normally arranged about the periphery of the worm gear in a single plane, are mounted in staggered relationship along the axis of the worm gear t... | 06/14/1988 |
| 4718297 | Infinite ratio transmission apparatus A transmission having an input differential and an output differential; each differential having a pair of coaxial shafts rotatable independently of each other and a rotatable member coupled to the shafts and rotatable relative thereto. Structure is provi... | 01/12/1988 |
| 4685346 | Power transmission system A worm drive system includes a worm wheel having two sets of angularly arranged rollers. Each set of rollers mates with a separate screw thread on a worm screw associated with the worm wheel. The worm drive system may also include a second worm screw havi... | 08/11/1987 |
| 4643039 | Speed reduction gear having axial and transverse components which are in equilibrium The two endless screws (202, 203) and the four gear wheels (207, 209-307, 309) which mesh with the endless screws and with each other in pairs, have inclined teeth in opposite directions at an angle a, while the secondary gear wheels (210, 310) fixed in r... | 02/17/1987 |
| 4615230 | Gear transmission comprising two worms The driving shaft (11) is equipped with two oppositely threaded worms (13a, 13b) with which respectively mesh on opposite sides two worm-wheels (14a, 14b) of a first kinematic channel and two worm-wheels (16a, 16b) of a second kinematic channel, and the w... | 10/07/1986 |
| 4589297 | Adjusting transmission in a motor vehicle An adjusting transmission of a motor vehicle for a motorized seat adjustment with a transmission housing and a worm arranged on a bearing shaft which is supported at the transmission housing in two shaft bearing parts retaining the shaft and inserted into... | 05/20/1986 |
| 4589299 | Reduction motor shaft provided with screw type double A reduction motor shaft used, for example, in a wiper motor is disclosed, which is provided with screw type double worms constituting a reduction mechanism part. In this reduction motor shaft, right-handed and left-handed screw type worms are coaxially fo... | 05/20/1986 |
| 4444071 | Method for assembling a worm screw motor-reduction gearbox combination with a double kinematic chain, and a motor drive reduction gearbox combination resulting therefrom A motor-reduction gearbox combination has the driven shaft output gear on the floor of the casing and below the driving shaft which is perpendicular to the driven shaft. The drive shaft has two multi-start corner screw portions of opposite hand and prefer... | 04/24/1984 |
| 4369387 | Electric drive unit An electric drive unit particularly adapted for actuating windshield wiper assemblies includes a motor having it's armature shaft carrying aportion having two oppositely pitched worm threads. Two worm gear wheels are disposed each on opposite sides of the... | 01/18/1983 |
| 4297919 | Mechanical power transmission method and means A particularly compact and efficient transmission includes one or more helix-like races having a common axis of rotation, a support member extending along the axis, one or more bearing units axially fixed to the support member and with their peripheries p... | 11/03/1981 |
| 4282767 | Reduction gear A reduction gear comprises a parallelepiped-shaped casing containing a double worm input shaft engaging with two pinions. The input shaft has its worm portions of equal pitch magnitude but of opposite hand and the engaging pinions are one on each side of ... | 08/11/1981 |
| 4261218 | Speed reducer adjustment means A speed reducer comprising a worm gear of the type suitable for driving proportioning pumps. The worm is rotated by an input shaft which is suitably journalled within a speed reducer housing wherein the input shaft bearings are respectively carried within... | 04/14/1981 |
| 4197755 | Rotary drive systems In radiographic apparatus of the kind known as computerized tomographic (CT) apparatus, a source of radiation is moved around a patient to irradiate the patients body from a plurality of directions. In certain types of CT apparatus the motion includes a s... | 04/15/1980 |
