Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7284634 | Electric power steering apparatus An electric power steering apparatus comprises a rotary shaft member connected to a steering wheel, an elongate member, a rack-and-pinion mechanism, a ball screw mechanism constructed of a screw member, a nut member and a multiplicity of balls interposed between the... | 10/23/2007 |
| 7191521 | Advanced geometry of skew and straight bevel gears produced by forging The present invention provides for bevel gears having a localized and stable bearing contact. The localization of bearing contact is achieved by substitution of flat tooth surfaces with parabolic tooth surfaces. This is accomplished by either modifying line-contact ... | 03/20/2007 |
| 7024725 | Overhead door closer with slide arm assembly This invention relates to an overhead door closer with slide arm assembly having a toothed pinion that is eccentrically supported and presents a circular rolling curve, which pinion meshes with a toothed rack arranged at a piston. The invention concentrates on a par... | 04/11/2006 |
| 6918181 | Gear tooth topological modification for reducing noise and vibration in transmission systems A method for improving acoustic and vibrational properties of gears includes determining the transmission errors of intermeshing gears due to stiffness variations in the gear teeth, performing Gear Tooth Topological (GTT) modifications to compensate for the errors, ... | 07/19/2005 |
| 6597163 | Contamination resistant probe attachment device A contamination resistant probe attachment device attaches over an opening in a top cover of a disc drive to couple a testing probe to the interior of the disc drive. The attachment device has a base for surrounding and attaching around the opening in the... | 07/22/2003 |
| 6432022 | Low-play planetary gear mechanism A low-play planetary gear mechanism for high rotational speeds and low torque transmission and having roller bearings for the parts which rotate within the gear mechanism. The gear mechanism is designed for a long, maintenance-free service life in continu... | 08/13/2002 |
| 5934157 | Flexible meshing type gear device having a high wear-resisting rigid internal gear A flexible meshing type gear device 1 has an internal gear 2 having internal teeth 21, a flexible external gear 3 having external teeth 31, and a wave generator 4. Only the internal teeth 21 of the internal gear 2 are formed thereon with a metal plated co... | 08/10/1999 |
| 5537889 | Gear device having tooth profile improved in reducing local frictional heat value and method of producing such a gear device A gear device improved in lowering the product of the load F acting on a pair of intermeshing teeth and the relative sliding velocity v at the area of contact of the gears, thereby minimizing the frictional heat. The gear device includes a first gear and ... | 07/23/1996 |
| 5507703 | Differential drive A differential drive having a differential carrier rotatably supported in a differential housing is disclosed. Two axle shaft gears are rotatably held in cylindrical bores in the differential carrier and are arranged coaxially relative to one another. A p... | 04/16/1996 |
| 5454277 | Intermittent torque transmission device In an intermittent torque transmission device, an input shaft is provided to have a cylindrical cam face. An output shaft has a wheel provided in a manner to intersect the input shaft. A plurality of recesses are provided on an upper surface of the wheel ... | 10/03/1995 |
| 5203224 | Gear for use in vacuum space The peripheral teeth of a gear body are made of alloy tool steel and coated with a manganese-phosphate-treated layer and then with a solid lubricating film. The alloy tool steel of which the teeth of the gear body cooperates with the manganese phosphate l... | 04/20/1993 |
| 4648286 | Ball-retaining structure in a power transmission apparatus A ball-retaining structure in a power transmission apparatus for transmitting power by means of magnetic balls arranged between non-magnetic rotating bodies is disclosed, in which a magnet or magnets are arranged within either one of the rotating bodies i... | 03/10/1987 |
| 4184380 | Gears having resilient coatings A tooth gearing having a resilient coating affixed to the engaging surfaces of gear teeth, the coating having a thickness and coefficient of friction such that the sliding and external friction that would occur between gear teeth not having the coating is... | 01/22/1980 |
| 4023433 | Power transfer The power transfer of the present invention employs a driver having a medial section which includes a plurality of continuous, helical grooves and a plurality of axially aligned transfer material return flow paths. The medial section terminates at each en... | 05/17/1977 |
| 4006646 | Anti-friction worm and wheel drive A worm-wheel assembly wherein anti-friction balls are recirculated through elical grooves in the worm to increase the efficiency of the driving operation. This driving system is believed to have the advantages of good distribution of load forces, smooth an... | 02/08/1977 |
