...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7416517 | Interactive martial arts training apparatus The invention pertains to a martial arts training device, a kit for assembling the device, and a method of using the device. The device includes a vertical elongate shaft supported by a rotary bearing, the rotary bearing supported by a base such that the shaft can r... | 08/26/2008 |
| 7228641 | Bearing arrangement A bearing arrangement for an articulatable support includes bearing assemblies. In one embodiment, the assemblies have a ball and aperture having sliding contact at discrete areas during relative rotation. In another embodiment, the sliding contact may be formed at ... | 06/12/2007 |
| 7090402 | Thrust bearing A thrust bearing and method of assembling a thrust bearing, the bearing comprising: an outer housing having a substantially circular base, wherein a cylindrical side wall and a central post are upstanding from the base; an outer ball seated on and at least partially... | 08/15/2006 |
| 7086303 | Lead screw for linear actuator, and method of manufacturing the same A lead screw for a linear actuator, which has a metal pipe having a helical projection resin-molded on its outer surface, and a ball for a pivot bearing welded to a distal end of the metal pipe, is disclosed together with a method of manufacturing the same. With the... | 08/08/2006 |
| 6965180 | Electric motor with self-adjusting bushing structure A bushing structure 10 is constructed and arranged to be operatively associated with a shaft 24 of an electric motor 22. The motor has a housing 30 including a generally elliptical recess 32 therein defined along an axis C of the s... | 11/15/2005 |
| 6951424 | Motor with axially moveable bearing member A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing sect... | 10/04/2005 |
| 6860637 | Bearing arrangement A bearing arrangement for an articulatable support (6) comprises bearing assemblies (20/28, 22/29, 24/30 and 26/32). In one embodiment the assemblies comprise a ball (20, 22, 24, 26) and aperture (40 FIG. 2) having sliding c... | 03/01/2005 |
| 6639336 | Spindle motor and manufacturing method thereof A spindle motor having a pivot which tip portion can easily be formed by a spherical surface having high precision, high hardness, the diameter of which can be determined as desired, the tip portion 6a of the pivot 6 is formed by cutting a steel ball used... | 10/28/2003 |
| 6604860 | Thrust bearing device and motor A metallic receiving plate is located in a holding recess of a housing such that the plate opposes the distal end face of a worm shaft. The distal end of the receiving plate with respect to the rotating shaft defines a charging cavity in the holding reces... | 08/12/2003 |
| 6592263 | Efficient bearing An efficient bearing includes jutting anchor flanges directly extending from a front end of the bearing for coupling with an air fan spindle housed in the bearing. The air fan spindle thus may have a precise axis and less floating or sinking during rotati... | 07/15/2003 |
| 6280089 | Rotational shaft for a non-ball type bearing A shaft structure for rotational support by a non-ball type bearing includes a spherical rotation-supporting section and a non-spherical section. The spherical rotation-supporting section provides a support for the shaft when the shaft rotates in an axial... | 08/28/2001 |
| 6273611 | Bearing for spindles in spinning or twisting machines Spindles of spinning and twisting machines have a rotatable shaft supported in a bearing housing. The bearing housing comprises a neck bearing, a step bearing as well as a radially movable step bearing tube, which is arranged in an oil bath. The diameter ... | 08/14/2001 |
| 5901545 | Shaft for an open-end spinning rotor and method of making same In the case of a shaft for an open-end spinning rotor a supporting element is fixed in a concentric recess of the shaft. The supporting element is disposed with a radially extending supporting surface against a vibrating ball of a step bearing. A ball is ... | 05/11/1999 |
| 5762422 | Bearing apparatus for electrical rotating machine A bearing apparatus for use in an floppy disc drive device motor having a sleeve bearing and a thrust bearing is provided which is characterized in that there is provided a thrust bearing having such a convex portion, a projection, or a concave portion th... | 06/09/1998 |
| 5722227 | Open-end spinning rotor In the case of a shaft for an open-end spinning rotor, a supporting element arranged at a step bearing extends the shaft. The supporting element is arranged centrical to the axis of the shaft. The supporting element is affixed to the shaft by means of a s... | 03/03/1998 |
| 5568976 | Idler bearing mount for mounting of inclined agitators A bearing mount particularly useful for mounting a non-driven end of a rotary shaft of an inclined or vertical agitator used for the processing of materials such as pharmaceuticals, cosmetics, foodstuffs and the like in kettles wherein such materials are ... | 10/29/1996 |
| 5555124 | Rotating polygon mirror driving apparatus A rotating polygon mirror driving apparatus has a rotor having a rotating polygon mirror fixed thereto, a rotational shaft and a rotor magnet; a bracket having a base plate provided opposite to the rotor magnet and a collar forming a bearing holding porti... | 09/10/1996 |
| 5277499 | Dynamic pressure bearing apparatus In a dynamic pressure bearing apparatus for use in a rotary polygonal mirror type light deflector in a laser beam printer, a rotary head in a video tape recorder and the like, the apparatus includes a rotary shaft having a shaft end surface, a sleeve for ... | 01/11/1994 |
| 5212999 | Motor with worm reduction gear In the motor with the worm reduction gear, wherein a worm is provided at an end portion of a rotary shaft, a worm wheel is in meshing engagement with the worm and rotation of the rotary shaft is reduced in speed and transmitted to load, such an arrangemen... | 05/25/1993 |
| 5090822 | Bearing arrangement for high-speed shafts An improved bearing arrangement for a high-speed, preferably vertical, shaft having a bearing body which takes up both the axial and the radial bearing forces. The bearing body is clamped or mounted in a fixed support solely by means of at least one elast... | 02/25/1992 |
| 5088884 | Rotor assembly for fluid driven engine A rotor having an elongated cylindrical body which surrounds a vertically disposed bearing shaft fixedly secured at its lowermost end to a supporting base, the rotor mounting a bearing pad at its uppermost end positioned to be seated on the upper end of t... | 02/18/1992 |
| 5048646 | Anti-skid device An anti-skid device of the type including an arm, carrying in its outer end a chain-provided pulley that is brought in contact with a vehicle wheel so that the chains are thrown in under the vehicle wheel. The arm is, in its inner end, journaled in a U-sh... | 09/17/1991 |
| 4955731 | Bearing equipment for vacuum devices A bearing for a vacuum device having an annular permanent magnet disposed about a rotatable shaft which has one end exposed to low pressure and the other end exposed to atmospheric pressure in which the rotatable shaft has a spherical member formed on the... | 09/11/1990 |
| 4905577 | Line-contact-type spherical bearing for connecting piston to connecting rod A hydraulically-operated piston machine includes at least one cylinder and a piston axially movably guided in the cylinder. The piston is connected to a crankshaft or the like by means of a connecting rod. The connecting rod and the piston each have spher... | 03/06/1990 |
| 4856918 | Bearing device A bearing device of a rotary cylinder for a magnetic head includes a fixed shaft and a sleeve rotatably supported about the fixed shaft through a radial bearing. A thrust receiver secured to one axial end of the sleeve has a convex spherical surface at th... | 08/15/1989 |
| 4822256 | Bearing support for spherical pumps In a spherical pump, having a separation wall separating the wet part from the dry part of the pump, the column for the ball of the spherical bearing is made from the same material as the separation wall and is clamped in a cylindrical protrusion of the s... | 04/18/1989 |
| 4798476 | Dynamic pressure type fluid bearing A dynamic pressure type fluid bearing device in which a housing and a shaft rotatable relative to each other are opposed to each other to provide inner and outer bearing surfaces for radial load. One of these bearing surfaces is formed with a groove for g... | 01/17/1989 |
| 4505165 | Trackball device The trackball device includes two supports for the trackball, each of which has a code wheel associated therewith. The journals on the end of each shaft and the bearing surfaces of the pillow block associated with the shaft are constructed to have substan... | 03/19/1985 |
| 4403484 | Dual node support assembly for washing machine A support assembly for a washing machine includes a mount secured to the assemblage of working parts of the machine and adapted to move with the assemblage during operation of the machine and a cabinet structure enclosing the assemblage of working parts a... | 09/13/1983 |
| 4402199 | Differentially damped support assembly for washing machine A support assembly for a washing machine includes a cabinet structure for enclosing the various working parts of the machine and a mount secured to the assembly of working parts of the machine for movement therewith. The cabinet base has an upwardly facin... | 09/06/1983 |