Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7318625 | Reclining element A reclining element includes a pivotal backrest, a headrest, which is coupled in an articulated manner thereto, and optionally a footrest. These pivotal parts can be displaced by an electromotive adjusting device. The reclining element is so configured as to elimina... | 01/15/2008 |
| 7091692 | Electromotive adjustment drive The invention relates to an electromotive adjustment drive which is operated by a safety voltage, for instance, an adjustment drive for the adjustable components of pieces of furniture. The adjustment drive is equipped with a hand-operated device and a control unit ... | 08/15/2006 |
| 6879073 | Electromotive linear drive An electromotive linear drive includes one or more drive motors and a corresponding number of torque-reducing transmissions and corresponding driven spindles and a casing. The casing is comprised of two casing parts, whereby the abutting surfaces of the casing parts... | 04/12/2005 |
| 6693552 | Hand-held control device A hand-held control device for controlling a drive having one or more d.c. motors and/or a.c. motors for adjusting a piece of furniture, includes a housing having a lower housing part and an upper housing part. A circuit board is received in the housing a... | 02/17/2004 |
| 6614199 | Device for displacing furniture An adjustment device for adjusting an article of furniture, includes a drive unit having at least one direct current positioning motor connected to a mains power source; a control unit with at least one switching device for actuating the positioning motor... | 09/02/2003 |
| 6513398 | Electromotive adjustment assembly An electromotive adjustment assembly, includes at least two spindles disposed in parallel spaced-apart relationship, and a motor unit coupled in driving relationship with the spindles for operating the spindles.... | 02/04/2003 |
| 6513790 | Electromotive adjustment assembly An electromotive adjustment assembly, includes at least two spindles, each spindle carrying a spindle nut, with both spindle nuts secured against executing a rotation movement. A motor unit is positioned between the spindles and coupled in driving relatio... | 02/04/2003 |
| 6452293 | Linear drive A linear drive, useful in particular as drive for a piece of furniture, includes at least one spindle, and a drive mechanism, having a drive motor and a reduction gear in driving relationship with the drive motor, for rotatably driving the spindle. The dr... | 09/17/2002 |
| 6452350 | Linear drive A linear drive to drive an article of furniture includes at least one drive motor that is coupled with a linearly moveable driven member and a braking system with a controlled braking element which commences the braking function without delay. The braking... | 09/17/2002 |
| 6257085 | Electromotive drive mechanism for a body of furniture An electromotive drive mechanism for a body of furniture, includes a worm drive which is activated by a motor and includes a worm received in the casing and a worm wheel in engagement with the worm. Received in the casing is a support body which is closel... | 07/10/2001 |
| 6240800 | Electromotoric operating mechanism for height adjustment of an article of furniture An electromotoric operating mechanism, such as a single drive or dual drive, for height adjustment of an article of furniture, especially for furniture items useful in the field of hospitals and/or nursing, includes a drive having an output member in the ... | 06/05/2001 |
| 6234642 | Bed with improved lighting features A hospital bed or nursing bed has movable components which can be adjusted by a drive including a plastic casing and an electric motor accommodated in the casing. A control block is operatively connected to the drive and includes a circuit board for the c... | 05/22/2001 |
| 5901610 | Electromotive drive mechanism for a piece of furniture An electromotive drive mechanism for a piece of furniture, includes a gearmotor having a rotor rotating about a rotational axis, an adjusting spindle for operation of a piece of furniture, and a gear unit connecting the spindle to the rotor of the gearmot... | 05/11/1999 |
| 5626328 | Flat lifting device A flat lifting device includes an outer and an inner hollow section rail with closed cross section and with a substantially greater width than a thickness. One of the section rails is acted upon by a drive unit having a linearly moveable drive member for ... | 05/06/1997 |
| 5481769 | Lifting apparatus A lifting device for swiveling a part of a piece of furniture includes a scissor jack attached to the part being swiveled and operated by a drive unit having a spindle and a gear motor which is connected to the scissor jack and runs along the spindle. Inc... | 01/09/1996 |
