Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8091445 | Offset compound gear inline two-speed drive A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet rob... | 01/10/2012 |
| 7154639 | Transmission mechanism of image scanner with adjustable resolution A transmission mechanism of an image scanner with adjustable resolution is disclosed. The transmission device is driven by a step motor to move a carriage to perform a scanning operation at a selected speed The transmission device includes a transmission control set... | 12/26/2006 |
| 6852060 | Gear assembly A planetary gear assembly comprising a primary array (2) of co-axial planetary gear sets and a secondary array (3) of co-axial planetary gear sets, planetary gear set being provided with an associated gear engagement means (21), the arrangement ... | 02/08/2005 |
| 6585618 | Remote control toy car control system A remote control toy car control system is constructed to include a dual-gearshift transmission mechanism coupled to the engine of the remote control toy car for transmission output power of the engine between a high torque position and a low torque posit... | 07/01/2003 |
| 6505527 | Remote-controlled toy car forward/backward steering control mechanism A forward/backward steering control mechanism installed in a toy car and coupled to a power drive and controlled by a remote controller to move the toy car forwards/backwards. The forward/backward steering control mechanism uses a remote controller-contro... | 01/14/2003 |
| 6502475 | Multiple-speed gear arrangement for portable planer and other power tools A multiple-speed gearbox for a planer. The planer includes a cutterhead mounted on an input shaft, which is driven by an electric motor, and infeed and outfeed rollers, which are driven by an output shaft. The gearbox includes a first input gear rotatable... | 01/07/2003 |
| 6457374 | Gearbox for a motorcycle A gearbox for a motorcycle includes a casing containing a gear train therein. The gear train includes an input gear shaft rotatably mounted in the casing and operably connected to and thus driven by an engine of the motorcycle, and an output gear shaft ro... | 10/01/2002 |
| 6386058 | Forward/backward steering control mechanism for a remote-controlled toy car A forward/backward steering control mechanism installed in a toy car and coupled to a power drive and controlled by a remote controller to move the toy car forwards/backwards. The forward/backward steering control mechanism uses a remote controller-contro... | 05/14/2002 |
| 6189395 | Change gear transmission device and scanner employing such device A change gear transmission device for a scanner comprises a motor, a first gear, a second gear and a third gear. The second gear and the third gear are movably arranged within the scanner and can be moved in axial direction. The first gear is coaxially co... | 02/20/2001 |
| 5368145 | Nonsynchronized positive clutch structure A nonsynchronized positive clutch system (200) is provided for selectively rotationally coupling and decoupling a first (46) and a second (42) independently rotatable members. The clutch system includes clutch members (50, 42A) each carrying a number (N) ... | 11/29/1994 |
| 5179866 | Transmission gear retainer A gear retainer (200) is provided that features a thrust washer (54) that is secured in a transverse groove (40) in a transmission mainshaft (3) for rotation therewith and extends outwardly therefrom into a groove defined between a radially outwardly exte... | 01/19/1993 |
| 5052535 | Positive clutch structure A positive clutch system (100) is provided for selectively rotationally coupling and decoupling a first (22) and second (38) rotatable member. The total system rotational backlash is distributed to minimize the backlash component (222) dependent upon dire... | 10/01/1991 |
| 4862755 | Transfer case planetary with annulus gear power takeoff An improved power takeoff arrangement for a vehicle four-wheel drive transfer case having high, neutral and low positions. The transfer case input shaft has a integral gear member defining the sun gear of a dual planetary gear assembly having its carrier ... | 09/05/1989 |
| 4789366 | Marine propulsion device ball clutch transmission A marine propulsion device comprising a ball clutch transmission including a propeller shaft including an axial bore defining an annular wall having therethrough a radially extending aperture communicating with the bore, a ball located in the aperture, an... | 12/06/1988 |
| 4730505 | Power change-over mechanism of a vehicle for industrial machinery A power change-over mechanism of a vehicle for industrial machinery including a spool divided into two members: an outer peripheral side member having splines freely meshed with splines of high-speed and low-speed gears and an inner peripheral side member... | 03/15/1988 |
| 4677867 | Power change-over mechanism of a vehicle for industrial machinery A power change-over mechanism of a vehicle for industrial machinery including a spool divided into two members: an outer peripheral side member having splines freely meshed with splines of high-speed and low-speed gears and an inner peripheral side member... | 07/07/1987 |
| 4619150 | Sliding gear for speed-changing transmission A sliding gear for a speed-changing transmission, idling on an output shaft, has a set of external running teeth in permanent mesh with a driving gear and a set of internal clutch teeth engageable with mating teeth on a coupling member carried by that sha... | 10/28/1986 |
| 4560118 | Drive mechanism for fishing reel A drive mechanism for fishing reels is disclosed which includes a spool supported on bearings and a shaft, carried in spaced side plates of a reel frame. The reel includes a cam operated brake mechanism which includes a plurality of stops, with an axially... | 12/24/1985 |
| 4154126 | Compact gear assembly A gear assembly having both compactness and a short installation length includes a mainshaft sun gear and a ring gear rotatable on a first axis, and an internal sub-assembly having intermediate ring and sun gears mounted in an eccentric bearing block for ... | 05/15/1979 |
