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| Number | Title | Issue Date |
| 7312680 | Manual switch-off device of a permanent magnet switch operating mechanism The present invention relates to a device that allows an output shaft to perform axial motion and automatic locking, in particular, a manual switch-off device for a permanent magnet switch operating mechanism. A large shoe plate and a small shoe plate are fixed onto... | 12/25/2007 |
| 7121160 | Mechanical transmission A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a pair of oscillating levers whereby rotation of the input shaft causes os... | 10/17/2006 |
| 6955539 | Characterization of motion of dual motor oral hygiene device An oral hygiene device is disclosed having at least two motors to simultaneously vibrate and impart motion upon the head portion of the oral hygiene device, most beneficially at the tip. A first motor is positioned in the handle portion of the device to impart a fir... | 10/18/2005 |
| 6920659 | Toothbrush A power toothbrush including a handle and a brush head with bristles. In one embodiment, the toothbrush includes vibratory means for causing the brush head and the bristles to vibrate, and vibration isolation means for reducing the transfer of vibrations from the vi... | 07/26/2005 |
| 5971721 | High pressure pump having an eccentric transmission An energy efficient high pressure pump system includes a drive motor driving an eccentric transmission, which drives a reciprocation pump having a number of cylinders. The eccentric transmission transmits a torque demand from the reciprocating pump, which... | 10/26/1999 |
| 5862685 | Washing machine transmission A washing machine transmission performs a washing by rotating a pulsator in forward and reverse directions during a washing cycle even though a driving source rotates in any one direction only, so that an overload in the driving source can be prevented. A... | 01/26/1999 |
| 5813281 | Device for reducing torque variations for use in drive apparatus A device for reducing torque variations for use in a drive apparatus which has a drive shaft for causing a lift unit to perform one cycle of up-and-down movement for each of at least two lift units to perform one cycle of up-and-down movement at a specifi... | 09/29/1998 |
| 5673588 | Infusion pump retraction mechanism A retraction mechanism is disclosed for retracting and engaging the pumping mechanism assembly of an infusion pump with an infusate flow path. The retraction mechanism provides a linkage which converts rotary motion of a handle about an axis to linear mot... | 10/07/1997 |
| 4807485 | Motor driven caging system for free gyros A motor driven caging system for free gyros which cages both the inner and outer gimbals thereof and locks in both the caging and uncaging positions by an over center mechanism is disclosed. The motor drives a crank which in turn drives a somewhat complia... | 02/28/1989 |
| 4334437 | Arrangement for the compensation of inertia forces in the reciprocating driving of a machine element When a machine element having a large mass is given a reciprocating movement, the recurring changes in speed as well as direction of movement require that very great driving forces must be applied, which cause varying stresses on the driving unit. In case... | 06/15/1982 |
| 4159599 | Gate-opening and closing assembly An improved gate-opening and closing assembly which is designed to shiftably move a gate from an opened position to a closed position, and from the closed position to the opened position in a relative planar path. This assembly comprises a lever arm conne... | 07/03/1979 |
| 4109539 | Dynamic power booster The dynamic power booster is an apparatus which utilizes rotational input power for driving a crank lever in circular rotation. The crank lever drives a pivotally mounted lever assembly, having a first and a second lever slidably connected with one anothe... | 08/29/1978 |
| 4029334 | Bicycle drive assembly A drive assembly for a physically propelled vehicle such as a bicycle having a crank arm operatively connected to a drive member for rotating the drive member, and a power arm rotatively mounted for relative angular movement between the power arm and cran... | 06/14/1977 |
