Famous Patents
Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8082818 | Planetary device for conversion between rotary motion and linear motion A sun shaft, planetary shafts, and a ring shaft having respective axes of rotation in parallel with one another are provided. A helical sun gear, helical planetary gears, and a helical ring gear are provided on the sun shaft, the planetary shafts, and the ring shaft... | 12/27/2011 |
| 8011264 | Mechanism for converting rotary motion into linear motion Revolving rollers, each provided on an outer peripheral surface thereof with revolving roller grooves extending therearound, are caused to mesh with a rack rod thread of a central rack rod with an axial angle over a lead angle of the rack rod thread and arranged for... | 09/06/2011 |
| 7950304 | Roller screw A roller screw of the present invention has a screw shaft 1 having a roller rolling surface 1a spirally formed with a lead on an outer surface thereof; a nut 2 having a roller rolling surface 2a spirally formed on an inner s... | 05/31/2011 |
| 7004045 | High thrust valve operator A high thrust operator for gate valves employs an inverted satellite roller screw assembly driven by an internally threaded cylinder carried within a bearing case. The cylinder is sized to provide a relief plenum within the case into which the roller screw assembly ... | 02/28/2006 |
| 6969199 | Floating bearing The invention relates to a movable bearing for a slide (9) guided on two shafts (4), with a linear bearing (3) guided on one of the shafts (4) and a bearing housing(2) that accommodates the linear bearing (3) and is connecte... | 11/29/2005 |
| 6925901 | Device for converting rotational movement into axial movement A device for converting rotational movement into axial movement includes planetary rollers driven by a drive shaft projecting from a drive device and maintained peripherally at a same distance, in addition to a push body axially displaced by the planetary rollers. T... | 08/09/2005 |
| 6684728 | Rectilinear motion driving apparatus In a rectilinear motion driving apparatus, a shaft is fitted into a cylindrical body in a coaxial state, and a plurality of cylindrical coil rollers are interposed between the cylindrical body and the shaft by press fit so as to roll at a predetermined in... | 02/03/2004 |
| 6655228 | Dual directional power feed The present invention discloses a dual directional power feed for use with handheld drills or stationary frame mounted power sources. The device comprises a housing, two pairs of wheel bearings rotatably mounted to the housing, a cap rotatably mounted to ... | 12/02/2003 |
| 5526851 | Variable pitch cyclindrical cam mechanism for controlling the motion of a weft insertion member An apparatus for controlling the motion of a weft insertion member in shuttleless looms, the apparatus includes: a triple-threaded variable pitch cylindrical cam, adapted to be secured to the weft insertion member; and a slider, which contains three rolle... | 06/18/1996 |
| 5320143 | Variable pitch cylindrical cam mechanism for controlling the motion of weft insertion members in shuttleless weaving looms A mechanism controls the motion of the weft insertion member in shuttleless looms. This mechanism comprises a double-threaded variable pitch cylindrical cam and a slider having two pairs of frustoconical rollers. Each pair of frustoconical rollers is moun... | 06/14/1994 |
| 3974709 | Screw and follower positioning device A high speed positioning device having a lead screw, a slidable frame and a screw engaging roller assembly supported by the frame for axial movement along the screw. The screw engaging roller assembly includes a pair of opposed rollers supported by a pair... | 08/17/1976 |
