Abstract: A high voltage direct current energy transmission (HVDCT) air-core inductor includes at least one concentric winding layer having electric terminals are formed at its ends, and includes an electrostatic shield that has a layer of electrostatically dissipative material having a surface resistance ranging from 109 to 1014 ohm/square, wherein at least one end of the layer is provided with a collector electrode that extends essentially along the circumference of the end of the layer and that is to be connected to one of the terminals, and where the layer is designed as a spray coating on an outer surface of an exterior winding layer.

Abstract: A high voltage direct current energy transmission (HVDCT) air-core inductor includes at least one concentric winding layer having electric terminals are formed at its ends, and includes an electrostatic shield that has a layer of electrostatically dissipative material having a surface resistance ranging from 109 to 1014 ohm/square, wherein at least one end of the layer is provided with a collector electrode that extends essentially along the circumference of the end of the layer and that is to be connected to one of the terminals, and where the layer is designed as a spray coating on an outer surface of an exterior winding layer.

Abstract: A fluid-operated medical or dental handheld element is disclosed, having a connecting device for connecting the handheld element to a fluid source so that a first impeller can be induced to rotate by a fluid stream to cause a tool to execute a driving motion, a fluid conducting device arranged between the connecting device and the first impeller for conveying a fluid stream away from or toward the first impeller, and a generator for generating electric power. The generator includes a second rotatable impeller that can be driven by at least a substream of the fluid stream conveyable in the first fluid conducting device. One result is more constant generation and output of power by the generator independent of the rotational speed of the first impeller, thereby insuring a more constant power supply to a power consuming device connected to the generator.

Abstract: There is disclosed a medical or dental hand-piece element comprising a coupling mechanism for a detachable connection of the hand-piece element to a drive unit, a tool receptacle that is or can be connected to the hand-piece element, and a drive element for transmitting a driving movement from the drive unit to the tool receptacle so that the tool receptacle can be set into a working movement, wherein the drive element comprises at least one rotatable shaft, and a generator for converting mechanical energy into electric energy, wherein the generator can be driven by the at least one rotatable shaft of the drive element.

Abstract: A fluid-operated medical or dental handheld element is disclosed, having a connecting device for connecting the handheld element to a fluid source so that a first impeller can be induced to rotate by a fluid stream to cause a tool to execute a driving motion, a fluid conducting device arranged between the connecting device and the first impeller for conveying a fluid stream away from or toward the first impeller, and a generator for generating electric power. The generator includes a second rotatable impeller that can be driven by at least a substream of the fluid stream conveyable in the first fluid conducting device. One result is more constant generation and output of power by the generator independent of the rotational speed of the first impeller, thereby insuring a more constant power supply to a power consuming device connected to the generator.

Abstract: A fluid-operated medical or dental handheld element is disclosed, having a connecting device for connecting the handheld element to a fluid source so that a first impeller can be induced to rotate by a fluid stream to cause a tool to execute a driving motion, a fluid conducting device arranged between the connecting device and the first impeller for conveying a fluid stream away from or toward the first impeller, and a generator for generating electric power. The generator includes a second rotatable impeller that can be driven by at least a substream of the fluid stream conveyable in the first fluid conducting device. One result is more constant generation and output of power by the generator independent of the rotational speed of the first impeller, thereby insuring a more constant power supply to a power consuming device connected to the generator.

Abstract: A fluid-operated medical or dental handheld element is disclosed, having a connecting device for connecting the handheld element to a fluid source so that a first impeller can be induced to rotate by a fluid stream to cause a tool to execute a driving motion, a fluid conducting device arranged between the connecting device and the first impeller for conveying a fluid stream away from or toward the first impeller, and a generator for generating electric power. The generator includes a second rotatable impeller that can be driven by at least a substream of the fluid stream conveyable in the first fluid conducting device. One result is more constant generation and output of power by the generator independent of the rotational speed of the first impeller, thereby insuring a more constant power supply to a power consuming device connected to the generator.

Abstract: There is disclosed a medical or dental hand-piece element comprising a coupling mechanism for a detachable connection of the hand-piece element to a drive unit, a tool receptacle that is or can be connected to the hand-piece element, and a drive element for transmitting a driving movement from the drive unit to the tool receptacle so that the tool receptacle can be set into a working movement, wherein the drive element comprises at least one rotatable shaft, and a generator for converting mechanical energy into electric energy, wherein the generator can be driven by the at least one rotatable shaft of the drive element.

Abstract: The present invention relates to an adapter for a medical handpiece and to a medical supply unit, which comprise a circuit that is designed such that an electrical power supply provided by a supply unit is checked and automatically prepared such that it can be supplied to any desired light source of a medical handpiece for operating the light source.