Abstract: The aim of the invention is to enable a stable welding process. This is achieved in that a welding device is supplied with a supply power by an energy source and converts at least a part of the supply power into a welding power in order to generate a welding arc, wherein the welding power is regulated by specifying a welding current. For this purpose, the supply voltage is determined, and the maximum supply current that can be delivered to the welding device from the energy source is specified. A maximum supply power is calculated using the supply voltage and the maximum supply current. The maximum welding power that is delivered by the welding device is determined from the maximum supply power, and the welding power is limited to the maximum welding power that can be delivered.

Abstract: To enable in a circuit arrangement (8) with a transformer with center tap the voltage measurement on the secondary side simply and safely, it is provided that at least two series-connected resistors (R3, R4) are connected between the two outer connections (A1, A2) of the secondary side of the transformer (T) to form a measurement point (P) between the two resistors (R3, R4), and a voltage measurement unit (V) is provided to measure the voltage (UP) between the measurement point (P) and the second output pole (13), which corresponds to the output voltage (UA).

Abstract: In order to set the output voltage of a resonant converter to a desired value by means of a simple additional circuit while the resonant converter is in open circuit operation, it is intended that at least one capacitor each (C1, C2) is connected in parallel to the electrical switching elements (S1, S2) of the secondary side of the resonant converter (1).

Abstract: To enable in a circuit arrangement (8) with a transformer with center tap the voltage measurement on the secondary side simply and safely, it is provided that at least two series-connected resistors (R3, R4) are connected between the two outer connections (A1, A2) of the secondary side of the transformer (T) to form a measurement point (P) between the two resistors (R3, R4), and a voltage measurement unit (V) is provided to measure the voltage (UP) between the measurement point (P) and the second output pole (13), which corresponds to the output voltage (UA).

Abstract: In order to set the output voltage of a resonant converter to a desired value by means of a simple additional circuit while the resonant converter is in open circuit operation, it is intended that at least one capacitor each (C1, C2) is connected in parallel to the electrical switching elements (S1, S2) of the secondary side of the resonant converter (1).

Abstract: An apparatus and method for measuring a dimension of a non-rigid object and using the dimension to pick and place the object. A first input device conveys the object into contact with a feed forward unit, which contact conditions the object. A distance sensor is positioned over a gap in the feed forward unit to measure a distance to a surface of the conditioned object. The distance measures a dimension of the conditioned object. The measured dimension is transmitted via at least one line of communication.

Abstract: An apparatus and method for measuring a dimension of a non-rigid object and using the dimension to pick and place the object. A first input device conveys a non-rigid object into contact with a feed forward unit, which contact causes a displacement of the feed forward unit. The displacement measures a dimension of the object. The measured dimension is transmitted via at least one line of communication.

Abstract: An apparatus and method for measuring a dimension of a non-rigid object and using the dimension to pick and place the object. A first input device conveys a non-rigid object into contact with a feed forward unit, which contact causes a displacement of the feed forward unit. The displacement measures a dimension of the object. The measured dimension is transmitted via at least one line of communication.

Abstract: Improvements in frame designs, cutting deck designs, front axles designs for lawn mowers in general and improvements in steering controls of zero turn radius riding mowers are disclosed.

Abstract: A lawn sweeper for collecting debris from a surface includes a frame. At least one wheel is rotatable with respect to the frame for movement of the lawn sweeper along the surface. A collection bin is engaged with the frame for collecting the debris. A brush assembly has at least one brush for urging the debris from the surface into the collection bin. A reducing mechanism reduces a volume of the debris within the collection bin.

Abstract: A method and network element for distributing and directing data packets during a handover of a mobile transceiver station from a first radio cell to a second radio cell within a mobile communication network, especially during a packet-switched cell handover. The network element of the mobile communication network via which a communication to the second radio cell is directed is provided with data packets that have been duplicated by at least a part of the data packets forwarded to the first radio cell. In this manner, the network element determines the type of distribution and direction of the duplicated data packets without any additional signaling.

Abstract: The present invention is a game apparatus comprising a board formed from a plurality of hexagonal shape spaces. The shapes are linearly and vertically disposed to provide for a preceding column to be offset from subsequent column. Located on opposite sides of the board are goals. A first set of distinguishable playing piece and a second set of playing pieces are provided. Each set of playing pieces includes seven components: a Ballcarrier, a Fullback, two Flankers and three Guards. The Ballcarrier is the only piece that can score and scoring is achieved when the Ballcarrier crosses or lands on the opposing team's goal line. The other pieces have various strength levels, which provide for each piece to move a specific number of spaces and at a specific configuration. Pieces are not taken or jump, so that all pieces remain on board during the play of the game.

Abstract: A charger for a rechargeable battery pack of a power tool includes a housing and a printed circuit board on which electrical components are mounted. The printed circuit board being mounted in the housing. The housing includes vent openings disposed below the printed circuit board and vent openings disposed above the printed circuit board.

Abstract: The present invention relates to an interchangeable battery for a battery-operated electric tool with a contact arrangement which, in order to charge the battery cell or cells by means of a charger having open counter-contacts, has at least a first freely accessible contact area per contact by means of which the battery can be connected to the counter-contact of the charger, the interchangeable battery is constructed according to the invention in such a way that it can also be charged by means of a charger with a screened contact region in that either the contacts of the battery are contact pins or blades which can be inserted into a contact region screened as far as a closely restricted aperture of a charger with screened counter-contacts or the contacts of the battery have a region screened by a wall which has such a wall thickness that the contacts with the entire wall can be inserted into the screened contact region.

Abstract: A removable wheelchair handle for mounting on a wheelchair to permit an attendant to maneuver the wheelchair from a location behind and above the back of the wheelchair inlcuding a handgrip cross bar, a support post connected with each end of the crossbar, mounting members connected with the support posts in spaced parallel relation and having mounting pins at the distal ends for insertion into open ends of handles on the wheelchair. One embodiment of the removable handle is formed by two telescopically connected elbow members which form the handgrip crossbar and portions of spaced mounting posts at opposite ends of the crossbar and the other portions of the mounting posts and mounting members connected to the ends of the mounting posts are formed by two elbow members telescopically connected with the first two elbow members.

Abstract: A hammer drill has a housing and a spindle mounted on the housing for rotating and reciprocating longitudinal movement. The spindle has a leading end provided with an end portion extending outward through a hole in the housing, facing a wall to be drilled. The housing is provided with a motor rotating the spindle and a member which subjects the spindle, when the latter rotates, to reciprocating longitudinal movement.