Abstract: An arrangement for a passage system comprising at least one door post and a barrier device, said arrangement comprising at least one post and horizontal bars, wherein a plurality of transmitting and receiving units are provided on a first bar and wherein, furthermore, a plurality of reflector strips are located on an opposite second bar.

Abstract: The invention relates to a stackable transport trolley, in particular a stackable shopping trolley, comprising a chassis and a basket; the chassis includes a support frame and a frame of rods which is arranged on the support frame, the frame of rods supporting the basket.

Abstract: The invention relates to a stackable transport trolley, in particular a stackable shopping trolley, comprising a chassis and a basket; the chassis includes a support frame and a frame of rods which is arranged on the support frame, the frame of rods supporting the basket.

Abstract: The invention relates to a stackable transport trolley, in particular a stackable shopping trolley, comprising a chassis and a basket; the chassis includes a support frame and a frame of rods which is arranged on the support frame, the frame of rods supporting the basket.

Abstract: The invention relates to a stackable transport trolley (10), in particular a stackable shopping trolley (10), comprising a chassis (12) and a basket (14); the chassis (12) includes a support frame (16) and a frame of rods (18) which is arranged on the support frame (16), the frame of rods (18) supporting the basket (14).

Abstract: A hydraulic steering assistance system for vehicles, including a power steering pump and a variable-ratio gear, particularly a booster drive for the power-steering pump wherein the power steering pump hydraulically powers both the hydraulic steering assistance system and the variable-ratio gear.

Abstract: In a preferred embodiment of the present invention, a positive-displacement pump, in particular a vane cell pump, having a pump element, in particular a rotor, which is situated within a contour ring and rotatable between two side surfaces where a limited coating is located on at least one of the side surfaces.

Abstract: A hydraulic steering assistance system for vehicles, including a power steering pump and a variable-ratio gear, particularly a booster drive for the power-steering pump wherein the power steering pump hydraulically powers both the hydraulic steering assistance system and the variable-ratio gear.

Abstract: In a preferred embodiment of the present invention, a positive-displacement pump, in particular a vane cell pump, having a pump element, in particular a rotor, which is situated within a contour ring rotatable between two side surfaces where a limited coating is located on one of the side surfaces.

Abstract: The invention relates to a pump, especially a power-assisted steering pump, comprising a current regulating valve, the current regulating valve comprising a hydraulic resistance, such as a main throttle and a regulating piston, whereby the main throttle can optionally be a regulating pin and an annular orifice.

Abstract: A rotary vane pump for delivering a fluid, having a rotary delivery device accommodated in a casing (2), a casing cover (3) arranged on one side of the casing and a bearing flange (4) on the opposite side. A suction zone (12) is formed on each of the sides, and an injector device (114) injects a pressurized fluid into the fluid as it is delivered toward each of the suction zones to thereby assure a uniform admission of the fluid into the cells of the rotary delivery device of the pump. Also a leakage path (13) for the fluid extends between the delivery zone (11) and suction zone (12). The leakage path (13) extends on the inner side (14) of the seal at least in sections parallel to the seal (5,6).

Abstract: A rotary vane pump for delivering a fluid, having a delivery device accommodated in a casing (2), a casing cover (3) arranged on one end face, and optionally with a bearing flange (4) adjoining the casing (2) on the side opposite to the casing cover (3). A seal (5,6) is arranged between the casing (2) and the casing cover (3) and optionally between the casing (2) and the bearing flange (4), and the seal (5,6) is inserted into a groove (8,9) formed in the casing cover (3), and optionally in the bearing flange (4), and/or in the respective end face (7) of casing (2). Also a leakage path (13) for the fluid extends between a delivery side (11) and suction side (12). The leakage path (13) extends on the inner side (14) of the seal at least in sections parallel to the seal (5,6).

Abstract: A rotary vane pump for delivering a fluid, having a delivery device (1) accommodated in a casing (2), with the casing (2) being closed on the one side by a casing cover (3), and on the other side by a bearing flange (4). A drive shaft (11) extends through the bearing flange (4), the delivery device (1), and optionally the casing (2), and is supported in a passageway formed in the bearing flange (4) and optionally in the casing cover (3). Also, between the delivery device (1) and the inside wall of the bearing flange (4), a side plate (16) is arranged, which supports itself on the inside wall, and centers the delivery device (1) in the casing (2). The side plate (16) is centered on the side facing the bearing flange (4) by a centering collar which extends into the passageway for the drive shaft (11).