"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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 |
| 8186238 | Mechanical gear apparatus A mechanical gear apparatus that provides power transmission wherein a gear that is driven moves only in a forward direction when the driving gear is driven forward or in reverse. It is a mechanical gear apparatus comprising a support base, a drive gear, and, a dire... | 05/29/2012 |
| 8015893 | Retainer for parking gear pivot A motor vehicle transmission includes a housing, a parking gear and a retainer. The housing has a support wall. The parking gear is pivotally coupled to the support wall of the housing by a pivot pin. The pivot pin has an end that protrudes outwardly from the suppor... | 09/13/2011 |
| 7448293 | Control system for driving a motor to perform a plurality of actions A control system for driving a motor to perform a plurality of actions, includes a motor gear set, a first action gear set, a second action gear set, a third action gear set, a first switch gear set, and a second switch gear set. The first and second switch gear set... | 11/11/2008 |
| 7348701 | Driving unit and image forming apparatus A driving unit including a motor, a support bracket supporting the motor, at least one stud supporting a gear which is rotated with a driving force of the motor, and a heatproof member disposed between a frame fastening the support bracket and the stud, and an image... | 03/25/2008 |
| 7326137 | Gear for a bicycle The invention relates to a compact installation gear with, for instance, a ⅜″ derailleur chain and a derailleur for setting a transmission ratio between a crankshaft and a rear hub of a bicycle. To that end, the gear comprises a compact housing with the cranksha... | 02/05/2008 |
| 7287712 | Closed case oscillating sprinkler An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not osc... | 10/30/2007 |
| 7243568 | Transmission device capable of changing speed with stored energy A transmission device capable of changing speed with stored energy drives a carriage to move back and forth. The transmission device includes a variable speed transmission mechanism mounted on a base and driven by a motor. A first energy storage mechanism mounted on... | 07/17/2007 |
| 7240579 | Transmission device with switchable gear ratios In a transmission device with switchable gear ratios, a driving gear is disposed onto an output shaft of a motor, a rocker arm is pivoted on the output shaft through an electromagnetic clutch, a rocker arm gear mounted on the rocker arm is driven by the driving gear... | 07/10/2007 |
| RE39701 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a rotating central shaft installed on a main chassis, a drive pulley connected to the rotati... | 06/26/2007 |
| 7225697 | Power transmission arrangement A power transmission arrangement includes a shaft, a first gear mounted on the shaft, a plate supported by the shaft and rotatable between a first position and a second position, a second gear supported by the plate and engaged with the first gear, and a third gear ... | 06/05/2007 |
| 7185691 | Reversible pull cord mechanism and system A reversible pull cord mechanism adapted for rotating a shaft in one direction when the pull cord is pulled in a first direction and rotating the shaft in the opposite direction when the pull cord is pulled in a second direction. ... | 03/06/2007 |
| 7187477 | Image scanning apparatus with speed-change gear module The present invention relates to an image scanning apparatus having a scanning module, a transmission belt, a speed-change gear module, and a driving device. The driving device drives the transmission belt by using the speed-change gear module so as to drive the sca... | 03/06/2007 |
| 7159483 | Power switching system for acoustic apparatus It is sought to simplify the arrangement of the drive power switching system for an acoustic apparatus, thus permitting immediate switching of the drive power. A drive power switching system comprises driven gears always in mesh with a main drive gear located betwee... | 01/09/2007 |
| 7150671 | Toy vehicle The invention relates to a toy vehicle, particularly for track-guided car racing circuits, that comprises a drive motor (10), which has a drive shaft (12), and comprises a driven axle (14), which is provided with wheels. A transmission (16 | 12/19/2006 |
| 7118512 | Self-actuating, traction-drive speed changer A self-actuating traction drive speed changer has a movable force input element having a planar drive surface, and a movable force output element having a planar drive surface which is connectable to an output load. One or more movable roller elements has a planar d... | 10/10/2006 |
| 7086516 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a central shaft installed on a main chassis, a drive pulley connected to the central shaft, a... | 08/08/2006 |
| 7069804 | Gear linkage device with real time check A gear linkage device with real time check. The gear linkage device with real time check includes a first gear link and a second gear link. The first gear link includes a flange provided with a notch and a plurality of first toothed portions on the lateral surface t... | 07/04/2006 |
| 6959645 | Printing press for processing continuous webs A printing press for processing continuous webs has a machine frame and printing cylinders exchangeably mounted in the machine frame. A drive is provided. An inking system is mounted in the machine frame. The drive has a two-row gear wheel having a first toothing an... | 11/01/2005 |
| 6939262 | Multiple gearing switch device A gearing switch device includes a switch assembly that is switched to one of positions to engage one of the gears in an idle gear set with an input gear and a transferring gear of a speed reduction device. The transferring gear drives a ring gear that is engaged wi... | 09/06/2005 |
| 6900560 | Holdable multi-functional rotary device The holdable multi-functional rotary device comprises a casing suitable to be held by users. The interior thereof is formed with a receiving space for arranging a driving unit and a battery. The driving unit has a motor and a driving shaft extending out of the casin... | 05/31/2005 |
| 6863141 | Electric wheelchair drive system Motorized wheels in a wheelchair or other light vehicle are each mounted on an axle for limited rotation relative to a secondary connection to the frame of the vehicle which incorporates a sensor providing feedback which controls the motor according to torque sensed... | 03/08/2005 |
| 6748188 | Rotary developing apparatus A rotary developing apparatus having a plurality of developing devices mounted along the outer periphery of a cylindrical rotary unit. A first gear train for connecting the rotary unit to a drive source to rotate the rotary unit. A second gear train for connecting a... | 06/08/2004 |
| 6732603 | Phase rotary disk motor switching module A phase rotary disk motor switching module employs anchor notches located on the peripheral rim of a rotary disk mounted on a motor to couple with a retaining element to enable the rotary disk to rotate in only one direction and define a plurality of phases for the ... | 05/11/2004 |
| 6722648 | Mechanism for forwardly and reversely feeding recording medium A drive mechanism for rotating a drive roller includes an input transmission mechanism for transmitting a drive force from a motor, an output transmission mechanism for transmitting the drive force to the drive roller, an intermediate transmission mechanism for sele... | 04/20/2004 |
| 6718840 | Sun and planet gear mechanism In a center of a sun gear an inner cylindrical portion is provided. The inner cylindrical portion is rotatably fitted to a fixed shaft. On the sun gear a circular groove is formed around the inner cylindrical portion. At a center of a planet lever an outer cylindric... | 04/13/2004 |
| 6702080 | Clutch device for magnetic recording/reproducing apparatus A clutch device for a magnetic recording/reproducing apparatus for transmitting power for a tape conveying regardless of the quantity of tape wound around a reel, including a rotating central shaft installed on a main chassis, a drive pulley connected to ... | 03/09/2004 |
| 6626057 | Gear-shifting device for changing scanning speed of optical scanner A speed-changing gear set inside the drive system of a scanner, wherein the drive system has a driving motor and an output unit. The speed-changing gear set has a control element and a cam driven by the control element. The cam has a first set of gears fa... | 09/30/2003 |
| 6536762 | Automatic document feeder capable of releasing jammed documents An automatic document feeder (ADF) capable of releasing jammed documents has a transmission mechanism that includes a removable transmission device. The removable transmission device is moved away and thus the transmission mechanism is disconnected when n... | 03/25/2003 |
| 6382043 | Transmission assembly for a bicycle having forward/back gear A bicycle transmission assembly comprises a gear shifting device and a reciprocating pedal device that are mounted to a bicycle frame. The reciprocating pedal device comprises a reverse gear train consisting of a first reverse gear and a second reverse ge... | 05/07/2002 |
| 6364217 | Reversing gear drive system for irrigation sprinklers A reversing gear drive system is provided in an irrigation sprinkler for reversibly shifting the direction of rotation of a sprinkler spray head for back and forth part-circle rotation between adjustably set end limits, to sweep an outwardly projected str... | 04/02/2002 |
| 6338401 | Movement control device A movement control device has a DC motor by which a recording medium is moved by one frame of image, and a stepping motor by which a recording medium is moved by a small predetermined amount. A driven gear fixed on the output shaft of the DC motor is mesh... | 01/15/2002 |
| 6336597 | Closed case oscillating sprinkler An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head... | 01/08/2002 |
| 6289758 | Gear module There is disclosed a gear module comprising an output gear pivotally fitted to a base, a transmission gear rotated by a driving force from a driving motor to transmit the driving force to the output gear, a power actuating lever having a base end pivotall... | 09/18/2001 |
| 6244124 | Scanner gear assembly with variable speed ratio A gear assembly with variable speed ratio for a scanner comprises a base fixed on the bottom of the scanner, a first motor and a second motor arranged on the base, a rotary disk, a first gear set and a second gear set. The first motor and the second motor... | 06/12/2001 |
| 6170348 | Swing arm transmission for driving sheet feed mechanism of a printing device media input tray A transmission for transmitting power from a printing device drive to drive a media pick roller to pick individual sheets of print media from a supply tray through the printing device without the necessity of requiring a separate pick roller motor and con... | 01/09/2001 |
| 6164844 | Power transmission apparatus The invention is directed to an engaging mechanism. The engaging mechanism comprises a cam element which moves upon modification of an engaging position, a cam follower abutted against a cam surface of the cam element, a detecting element for detecting a ... | 12/26/2000 |
| 6109545 | Closed case oscillating sprinkler An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head... | 08/29/2000 |
| 6070482 | Gear module There is disclosed a gear module comprising an output gear pivotally fitted to a base, a transmission gear rotated by a driving force from a driving motor to transmit the driving force to the output gear, a power actuating lever having a base end pivotall... | 06/06/2000 |
| 5975266 | Multi-speed transmission A multi-speed transmission for transmitting power between a first shaft and a second shaft which includes a plurality of gear sets, a plurality of connector gears corresponding to the plurality of gear sets and a shifting mechanism. Each gear set includes... | 11/02/1999 |
| 5896774 | Actuating mechanism A device, having a planetary gear and a single motor, in use for switching and transmitting a driving force of the motor to any one of station gears and for driving each station gear in both rotational directions. The operation of locking levers for preve... | 04/27/1999 |