Abstract: A device for conveying coating powder has an inlet valve, an outlet valve and a powder conveying chamber made from a flexible conveying chamber hose. The powder conveying chamber is arranged between the inlet valve and the outlet valve and has a conveying air inlet. In addition, the volume of the powder conveying chamber can be modified by a deformation of the conveying chamber hose.

Abstract: The powder coating booth with one or more powder spray guns for coating work pieces with powder has first suction openings arranged below the powder spray guns. In addition the booth has second suction openings, which are arranged above the powder spray guns horizontally distributed along the longitudinal side of the booth.

Abstract: The fluidizing unit for a powder conveyor has a powder suctioning opening, a powder suctioning canal and a fluidizing ring, which is arranged above the powder suctioning opening and concentrically to the powder suctioning canal. Moreover the fluidizing unit has fixing means, which are developed in a way that they hold the fluidizing ring such that the outer surface area of the fluidizing ring remains at least partially free.

Abstract: Device for cleaning a powder coating booth and powder coating booth with cleaning device. The device for cleaning a powder coating booth is provided with a first air distribution batten arranged on the floor of the powder coating booth. Also provided is a second air distribution batten arranged on a side of the powder coating booth and a suction channel with a suction slot for sucking excess powder out of the booth. The first and the second air distribution batten are provided in order to blow excess powder in the direction of the suction slot.

Abstract: In a powder coating compartment having at least one manual coating station which is located outside the compartment in front of an aperture in an end wall for the entry and exit of workpieces to be coated, the aperture being designed to be closed by a door which is disposed for swinging movement at the wall of the compartment and, when fully open, forms a sidewall of the manual coating station, it is provided that the door comprises a door panel adapted to be mounted at either side of the aperture by pivot means designed for quick release of the door from the pivot means.

Abstract: A pump and overflow valve assembly for a fluid pumping system includes a feed pump disposed in a feed pump housing, a return line in communication with the feed pump, an overflow valve disposed in the return line, the valve including a valve body and a valve housing being disposed in the feed pump housing. A spring is disposed between the valve housing and the valve body, and ajoining member is fixed to the valve body and projects outwardly from the valve housing. An adapter is mounted on the feed pump housing and a position switch is rotatably mounted on the adapter and provided with a control surface. Feed pump controlling means are disposed in the adapter and are responsive to selective rotation of the position switch to control operation of the overflow valve and the pump.

Abstract: In a powder coating compartment having at least one manual coating station which is located outside the compartment in front of an aperture in an end wall for the entry and exit of workpieces to be coated, the aperture being designed to be closed by a door which is disposed for swinging movement at the wall of the compartment and, when fully open, forms a sidewall of the manual coating station, it is provided that the door comprises a door panel adapted to be mounted at either side of the aperture by pivot means designed for quick release of the door from the pivot means.

Abstract: In a powder spray device for the electrostatic coating of workpieces with powder at least partly comprising electrically conductive particles and having a powder channel (10) for delivering the powder to an outlet directed towards the workpiece the powder channel contains a local cross-sectional reduction. The cross-sectional reduction brings about a velocity increase of the powder in the powder channel, thereby preventing an adhesion of the powder to the inner wall of the powder channel.

Abstract: In a device (1) for actuating an overflow valve (5), in particular an overflow valve (5) incorporated in a return line (4) of a feed pump (2) and comprising a valve housing (6) and a valve body (7), the valve housing (6) of which is inserted in a fixed position in a housing (3) of the feed pump (2), with a compression spring (8) arranged between the valve housing (6) and the valve body (7) of the overflow valve (5) and a joining piece (11) attached to the valve body (7) of the overflow valve (5), with the joining piece (11) projecting from the valve housing (6) of the overflow valve (5) and having a position switch (12) assigned to the feed pump (2) held onto it via an adapter (9) which is fixed into the housing (3) of the feed pump (2), both the axial adjustment of the overflow valve (5) and the actuation of the control electronics of the feed pump (2) should be undertaken using a common housing (2); in addition, it should be possible for the procedures for assembling and dismantling the components of the de

Abstract: A hand held machine tool has a protective electrode (1; 1a, 1b, 1c) located within a housing with a leakage current protective switch (2; 2a, 2b, 2c) triggered by a fixed leakage current (.SIGMA.1.sub..DELTA.), for example, 10 mA, for interrupting power supply leads (4, 5) of the machine tool with a protective conductor (3) connected to the protective electrode (1; 1a, 1b, 1c) and not being switched off.

Abstract: A tool bit chuck for drilling and chiseling bits has an axially extending receiving sleeve (1) with an opening (3) therethrough in which latching elements (9) are radially displaceably supported. The latching elements (9) are radially displaceable by a spring loaded axially displaceable actuating element (10). An actuating sleeve (12) laterally encloses and is axially displaceable relative to the receiving sleeve (1). Connecting members fix (6, 13) the actuating sleeve to the receiving sleeve. The actuating sleeve (12) has a stop (14) cooperating with the actuating element (10) for applying an axial force to the actuating element for assisting in centering the drilling or chiseling bit.

Abstract: A masonry-slitting apparatus has a housing (1) containing a drive unit (2) for a slitting member (4), and a trolley (3) on which the housing (1) is pivotally mounted about a rotary bearing (6) located in a first end region of the housing. The housing (1) has a first handle (10) in the first end region and a second handle (9) in a second end region at the opposite end from the first end region. Each handle (9, 10) has a substantially cylindrically shaped gripping surface (12, 13) extending parallel to one another and disposed at right angles to a disk plane of the slitting member (4). An electric switch (5) is located in the gripping surface (13) of the first handle (10) and a locking switch (11), actuating an arresting element (8), is located in the gripping surface (12) of the second handle (9).