Abstract: The invention refers to a suction device (2), in particular a vacuum cleaner or a dust extraction system, comprising a collection container (4) with a suction opening (10), a vacuum generating device (8), a suction hose (12) with its first end (14) connected to the suction opening (10) and its second end (16) connectable to an air outlet (18) of a hand-held electric or pneumatic power tool (20), a radio receiver (28) for receiving radio signals (30), and a communication device (32) located at or near the second end (16) of the suction hose (12) and comprising a sensor element (34) for detecting an operation status of the power tool (20), and a radio transmitter (38) for transmitting a radio signal (30) indicative of the operation status of the power tool (20).

Abstract: The invention refers to a hand-held power tool (10), comprising a tool housing (12), a working element (30) protruding from the tool housing (12) and designed to perform a working movement (34) during an intended use of the power tool (10), and a motor (28) located inside the tool housing (12) and designed to drive the working element (30) to perform the working movement (34) during the intended use of the power tool (10).

Abstract: The invention refers to a pneumatically driven apparatus, in particular a hand guided and/or hand held pneumatic power tool (1), comprising a pneumatic rotary vane motor (100), a working element (9) and a gear arrangement functionally located between the motor (100) and the working element (9) for transmitting a rotational movement and torque. The motor (100) comprises a housing defining a cylindrical chamber (114) extending along a cylinder axis, and a cylindrical rotor (104) located in the chamber (114) and extending along and rotatable about an axis (60) running parallel to the cylinder axis, the rotor (104) comprising a plurality of radially movable vanes (108) forced radially outwards during rotation of the rotor (104).

Abstract: A polishing pad including a damping layer made of a resilient material including expanded semi-rigid polyurethane having a microcell structure, an adhesive layer including a layer of a hook-and-loop fastener adapted to interact and connect to a corresponding layer of the hook-and-loop fastener located at a bottom surface of the working element of the machine tool and a polishing layer including microfiber adapted for polishing a surface of a work piece. The polishing layer includes a fabric having a woven mesh of microfibers that define a back side of the polishing layer. The fabric serves as a barrier to the resilient material of the damping layer such that the resilient material does not reach an active side of the polishing layer comprising the microfibers when the damping layer, adhesive layer and polishing layer are combined, and such that the active side of the polishing layer is free of resilient material of the damping layer.

Abstract: The invention refers to an electronic device (10; 10a; 10b) comprising two or more battery packs (18a, 18b), an electric motor (16) which is operated by electric energy from at least one of the battery packs (18a; 18b) at a time, and an electronic control unit (20) for controlling operation of the electric motor (16). It is suggested that the electronic control unit (20) is adapted for switching operation of the electric motor (16) cyclically and consecutively from at least one battery pack (18a; 18b) to at least one other battery pack (18b; 18a). Switching form one operation cycle to the next operation cycle may be effected depending on the current temperature (T) of the at least one battery pack (18a, 18b), on an electric current (1) drawn from the at least one battery pack (18a, 18b) during the current operation cycle, or on a duration (t) of continuous operation of the at least one battery pack (18a, 18b) during the current operation cycle.

Abstract: The invention refers to a hand guided and/or hand held electric or pneumatic power tool (1, 1?), comprising an electric or pneumatic motor (15, 100), a working element (9) realizing a working movement (11), when the motor (15, 100) is activated, and at least one gear arrangement functionally located between the motor (15, 100) and the working element (9) for transmitting a rotational movement and torque from the motor (15, 100) to the working element (9) in order to realize the working movement (11). It is suggested that the at least one gear arrangement is embodied as a magnetic gear arrangement (20, 21, 41) using magnetic fields to transmit the rotational movement and torque from the motor (15, 100) to the working element (9) without mechanical contact, in order to realize the working movement (11).

Abstract: A pneumatically driven apparatus, including a hand guided and/or hand held pneumatic power tool, includes a pneumatic rotary vane (PRV) motor, a working element and a gear arrangement for transmitting a rotational movement and torque. The PRV motor includes a housing defining a cylindrical chamber extending along a cylinder axis, and a cylindrical rotor located in the chamber and extending along and rotatable about an axis running to the cylinder axis. The rotor includes radially movable vanes forced radially outwards during rotation of the rotor. The gear arrangement is a magnetic gear arrangement, and that the rotor of the motor includes permanent magnets attached thereto between the vanes, so that the rotor of the PRV motor forms one of the rotating components of the magnetic gear arrangement.

Abstract: The invention refers to an electrically operated mobile vacuum cleaner (2) for separating dust and particles from a suction flow (35), comprising an electric motor (38) and a turbine (40) for generating the suction flow (35), a vacuum cleaner housing (4, 6; 32) with a collection chamber (8) for collecting dust and particles separated from the suction flow (35), a battery cell (116) for providing the electric motor (38) with electric energy for its operation, wheels (20) assigned to the vacuum cleaner (2).

Abstract: The invention refers to a hand-guided battery-operated electric power tool (2) comprising a tool housing (4) with a longitudinal extension along a longitudinal axis (36) of the power tool (2), an electric motor (38) and at least one battery (40) for operating the electric motor (38). The electric motor (38) and the at least one battery (40) are received in the tool housing (4). A working element (20) protrudes from a front part (4.1) of the tool housing (4) and is rotatable about an axis of rotation (22). The axis of rotation (22) of the working element (20) extends at an angle of >0° and <180° in respect to the longitudinal axis (36) of the power tool (2). The tool housing (4) comprises along its longitudinal extension the front part (4.1) into which the axis of rotation (22) of the working element (20) extends, a rear part (4.3) opposite to the front part (4.1), and a centre part (4.2) between the front part (4.1) and the rear part (4.3).

Abstract: The invention refers to a package unit (22) comprising a packaging (20) and at least one polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools, in particular hand-guided polishers or sanders, contained in the packaging (20). It is suggested that the packaging (20) is a flow pack containing only a single polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools.

Abstract: The invention refers to a package unit (22) comprising a packaging (20) and at least one polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools, in particular hand-guided polishers or sanders, contained in the packaging (20). It is suggested that the packaging (20) is a flow pack containing only a single polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools.

Abstract: The invention refers to a pneumatic tube or hose (28) having a longitudinal axis (70) along a longitudinal extension of the pneumatic tube or hose (28) and having two ends each provided with a socket (30; 66) adapted for releasable airtight connection to a pneumatic port (26; 64) of a vacuum generation unit (2; 48) and/or to a pneumatic port (42; 64) of a vacuum utilization device (32; 44), respectively. It is suggested that at least one of the sockets (30; 66) of the pneumatic tube or hose (28) comprises at least one magnetic element (80) adapted for interaction with at least one respective magnetic element (78) provided in a vacuum generation unit (2; 48) and/or in a vacuum utilization device (32; 44) in order to secure the socket (30; 66) of the pneumatic tube or hose (28) to the pneumatic port (26; 42; 64) of the vacuum generation unit (2; 48) or of the vacuum utilization device (32; 44) by means of magnetic force (82; 94; 100).

Abstract: The invention refers to an electric machine (30) comprising an electric motor (15) and a magnetic gear arrangement (20). The motor (15) is a brushless motor with an internal stator (31) and an external rotor (34). The magnetic gear arrangement (20) is located displaced along the longitudinal axis (24) in respect to the electric motor (15). The magnetic gear arrangement (20) comprises a first rotating element (41) with permanent magnets (42) and a second rotating element (44) with permanent magnets (45) both rotatable about the longitudinal axis (24). The second rotating element (44) is connected to an output shaft (46) of the electric machine (30). A static modulator (48) comprising ferromagnetic elements (49) is disposed between the permanent magnets (42; 45) of the rotating elements (41; 44).

Abstract: The invention refers to a double-sided polishing or sanding member (24) for releasable attachment to a hand-guided power tool (2). The polishing or sanding member (24) has an essentially disc-shaped form with an areal extension (26). A reinforcement plate (28) is located inside the polishing or sanding member (24) in the areal extension (26). The reinforcement plate (28) has a central attachment portion (30) for releasable attachment of the polishing or sanding member (24) to the power tool (2). It is suggested that the central attachment portion (30) comprises at least one magnetic element (32) adapted for interaction with at least one respective magnetic element (34) directly or indirectly attached to a tool shaft (14) of the power tool (2) in order to hold and secure the polishing or sanding member (24) in respect to the tool shaft (14).

Abstract: The invention refers to a battery pack (30) comprising a battery pack housing (32) and a battery cell (34) accommodated inside the battery housing (32) and a plurality of battery pack contacts (36) accessible from outside the battery housing (32) and electrically connected to the battery cell (34). The battery pack (30) is adapted to be electrically connected with its battery pack contacts (36) to respective electric appliance contacts (38) of an electronic appliance (2; 100) and to provide electric energy to the electronic appliance (2; 100) after connection thereto. It is suggested that the battery pack (30) comprises a card slot (40) in the battery pack housing (32) with a plurality of electric slot contacts (42) in electric contact with the battery pack contacts (36), and that the battery pack (30) comprises an electronics card (44) for releasable insertion into the card slot (40), the electronics card (44) comprising a wireless communication device (46).