Dewert Antriebs-und Systemtechnik GmbH Patent applications |
Patent application number | Title | Published |
20120206070 | FIRST-FAIL-SAFE ELECTROMOTIVE FURNITURE DRIVE - A first-fail-safe electromotive furniture drive includes at least one drive unit having at least one motor; at least one actuating device having at least two actuating units, each of which includes a motor contact element and a safety contact element; at least one supply unit; and at least one safety device. The furniture drive is equipped with a reporting device for displaying the functioning and a failure of the at least two actuating units and the safety device. | 08-16-2012 |
20120194106 | FIRST-FAIL-SAFE ELECTROMOTIVE FURNITURE DRIVE - A first-fail-safe electromotive furniture drive includes at least one drive unit having at least one motor; at least one actuating device having at least two actuating units, each of which includes a motor contact element and a safety contact element; at least one supply unit; and at least one safety device. The furniture drive is equipped with a reporting device for displaying the functioning and a failure of the at least two actuating units and the safety device. The furniture drive includes at least one safety actuating device. | 08-02-2012 |
20110229252 | DEVICE WITH TWO RELATIVELY-MOVING PARTS - On a device with at least two parts ( | 09-22-2011 |
20110037425 | ELECTROMOTIVE DRIVE ARRANGEMENT - An electric-motor drive arrangement is proposed having at least one electric motor and having at least one control device, wherein the electric-motor drive arrangement has a measurement data processing apparatus and a non-volatile memory. In this case, the memory is connected to a comparator which operates at least one optical display block of a display apparatus when a predetermined set value is reached or exceeded. | 02-17-2011 |
20100139428 | Electromotive Linear Drive - An electromotive linear drive ( | 06-10-2010 |
20090301239 | ELECTROMOTIVE FURNITURE DOUBLE DRIVE AND SWITCH ARRANGEMENT - An electromotive furniture double drive includes at least one drive motor, which is in driving engagement with a speed reduction gear train. An output element, which is secured against rotation, can be moved in its longitudinal direction by means of the speed reduction gear train. At least the speed reduction gear train and the output element are arranged in the housing, and the end positions of each output element are limited by at least one end switch. The output element and/or the housing has an adjustment device by means of which the position of the switching threshold of the at least one end switch can be adjusted from an area outside the housing. | 12-10-2009 |
20090044646 | Electromotive Linear Drive - An electromotive linear drive with a drive unit having a drive motor and a spindle driven by the drive unit. The drive includes a spindle nut disposed on the spindle. The spindle nut is movable longitudinally on the spindle. A lifting tube is operatively connected to the spindle nut so that the spindle nut moves together with the lifting tube. A connecting part is disposed on a free end of the lifting tube. A braking assembly is disposed in the lifting tube and is operatively connected to the spindle nut via an adjustable, frictional connection. The braking assembly is manipulable. During operation of the drive motor, the spindle nut frictionally engages the braking assembly, preventing rotation of the spindle nut. The frictional connection may be adjusted to permit the spindle nut to rotate with respect to the spindle, thereby manipulating a linear speed component of the lifting tube. | 02-19-2009 |
20080309178 | Geared Motor - A geared motor, for driving an adjusting mechanism, that is drivingly coupled thereto. The geared motor comprises a driving motor and at least one gear stage for reducing the motor speed. A drive unit formed by said parts is disposed in a monolithic or multipiece housing. The drive unit includes a mechanical load moment lock which is effectively connected to a gear stage and is functionally coupled to an output member of a gear stage. The load moment lock is coupled to the output member of the first gear stage that is connected downstream from the driving motor. The load moment lock is embodied as a monolithic and annular spring element. | 12-18-2008 |