| BDT AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120086163 | STACK FEEDING AERATION DEVICE AND METHOD - An aeration device adapted to aerate one or more sheets of a stack of sheets includes a side blower configured to selectively provide an air stream at an outlet thereof along an airstream direction so as to impinge against at least a portion of the stack. A height detecting device is configured to detect a height of an uppermost sheet of the stack. A side blower adjustment device is configured to adjust a height of the side blower and/or an angle of the airstream direction so as to track, by the air stream, the uppermost sheet of the stack based on an input from the height detecting device. | 04-12-2012 |
| 20110272877 | VORTEX SUCTION SEPARATOR DEVICE - A system for separating an article from the outer part of a stack and conveying it along a transfer path includes a stack assembly configured to receive a stack of articles. A mounting assembly including at least one vortex suction unit is disposed so as to face the stack of articles at least one of a leading edge and a trailing edge thereof. The vortex suction unit includes a conveyor configured to transport an article from the stack. | 11-10-2011 |
| 20110056804 | SYSTEM FOR CONVEYING AN ARTICLE USING VORTEX SUCTION UNITS - A system for conveying an article along a transfer path includes at least a first and a second vortex suction unit disposed in sequence in a direction of the transfer path. A conveyor is configured to support the article relative to at least one of the suction units and a main controller is configured to separately control the vortex suction units so as to convey the article along the transfer path using the conveyor. | 03-10-2011 |
| 20100244763 | CIRCUIT ARRANGEMENT FOR LOAD-DEPENDENT CONTROL OF CURRENT FLOW TIME IN MOTOR WINDINGS OF SELF-TIMED BIPOLAR STEPPER MOTORS - A circuit arrangement for automatic, load-dependent control of at least one winding current of a respective motor winding of a self-timed bipolar stepper motor, includes a first power driver circuit for a first motor winding and a second power driver circuit for a second motor winding. The circuit arrangement includes a first XOR gate and a second XOR gate, and a first resistor connected so as to couple the first XOR gate to an anode of a first diode. A cathode of the first diode is coupled to the comparator input of the first power driver circuit via a second resistor. A third resistor is connected so as to couple the second XOR gate to an anode of a second diode. A cathode of the second diode is coupled to the current-controlling comparator input of the second power driver circuit via a fourth resistor. A current path is configured so that a logic high at the output of the first XOR gate sets the comparator input of the first power driver circuit at a level configured to prevent current from being supplied to the first motor winding through the first power driver circuit. | 09-30-2010 |
