Abstract: The invention relates to an osteosynthesis screw (1) comprising a shaft (3) with a thread (2) and a head (4) formed at one end and having a notch (5) for a tool. The shaft region (3) with the thread has a configuration with a uniform thickness, ie. trilobular.

Abstract: A screw (1) is provided with a shank (3), a head (2) and a boring part (5). The shank (3) is provided with a thread (4). The head (2) has a shoulder (6) disposed at an axial distance (B) from the bearing face (12), while a portion (7) adjoining the shoulder on the shank side is provided with a tool drive (8). The head (2) of the screw can therefore be seized in axially secure manner by a tool in the region of the shoulder (6), and this tool can then simultaneously transmit the necessary torque in the region of the tool drive (8) as well.

Abstract: The invention relates to a fixing element (1) for fixing insulation and scaling tracks on a fixed substructure. Said element comprises a screw (9) and a large washer (7) with a cylindrical extension (8). The screw (9) has two thread segments (13, 14), wherein one thread segment (13) interacts with the through hole in a reciprocal thread engagement located in a narrowed area (12) of the cylindrical extension (8). An axial relative movement of both parts can be achieved by reciprocally rotating the cylindrical extension (8) and the screw (9).

Abstract: In a screwing element (1) for accommodation of a fastener head (5) of a fastener (6) there are provided jaws (3, 4) for seizing the fastener head. The jaws (3, 4) can be axially inserted into or withdrawn from the holder (2), wherein the jaws in the withdrawn position can be pivotably forced apart into open position. At their free end the jaws are provided with incisions (15, 16) and, adjoining these, with gripper-like parts (17, 18) jutting outwardly toward the central axis for the purpose of engaging mechanically and/or frictionally with the fastener head (5) from behind.

Abstract: The invention relates to a method for determining the vertical distance between an object and a device with a changing position, especially a motor vehicle, whereby a first sensor placed in this device gives off a signal, said signal is reflected by the object, and the reflected signal is received by the first sensor. The distance between the first sensor and the object is calculated from the transit time of the signal from being sent to being received by the first sensor. This distance is used to calculate all possible positions of the object in relation to the sensor, in order to determine the vertical distance of the object. The signal reflected by the object is also received by a second sensor, this second sensor also being positioned in the device with a variable position. A path from the first sensor to the object and from the object to the second sensor is then calculated from the transit time of the signal from the first sensor to the second sensor.

Abstract: In a screwing element (1) for accommodation of a fastener head (5) of a fastener (6) there are provided jaws (3, 4) for seizing the fastener head. The jaws (3, 4) can be axially inserted into or withdrawn from the holder (2), wherein the jaws in the withdrawn position can be pivotably forced apart into open position. At their free end the jaws are provided with incisions (15, 16) and, adjoining these, with gripper-like parts (17, 18) jutting outwardly toward the central axis for the purpose of engaging mechanically and/or frictionally with the fastener head (5) from behind.

Abstract: In a screwing element (1) for accommodation of a fastener head (5) of a fastener (6) there are provided jaws (3, 4) for seizing the fastener head. The jaws (3, 4) can be axially inserted into or withdrawn from the holder (2), wherein the jaws in the withdrawn position can be pivotably forced apart into open position. At their free end the jaws are provided with incisions (15, 16) and, adjoining these, with gripper-like parts (17, 18) jutting outwardly toward the central axis for the purpose of engaging mechanically and/or frictionally with the fastener head (5) from behind.

Abstract: The fitting has in each case a hydraulically operable shutoff valve (40, 42) for hot and cold water. The diaphragm-shaped closure part (56) interacts with the valve seat (52). Provided on the side opposite the valve seat (52) is a pilot control space (60) which is connected through the passage (62) to the annular channel (48) and the corresponding feedline (20). Via control lines (86'), each pilot control space (60) is connected to the outlet line (24) via an auxiliary valve (70'). The two auxiliary valves (70') are constructed on a ceramic disk valve (72) and can be operated jointly. When the auxiliary valves (70, 70') are closed, the pressure in the pilot control space (60) corresponds to the pressure in the annular channel (48), the shutoff valves (40, 42) are closed. By rotating the operating shaft (86) the two auxiliary valves (70') are opened, by which means the pressure in the pilot control spaces (60) drops.

Abstract: Valve trigger assembly for a pneumatic nailer including a geometrically configured valve bushing having threads at a lower end for securing the assembly into a housing of the nailer and a plurality of O-rings about the configured valve bushing. A geometrically configured valve piston including a plurality of O-rings about the configured valve piston reciprocates in the valve bushing against a spring and is retained in the valve bushing by a snap ring. Small holes in a mid-portion of the valve bushing provide for passage of air supply line pressure for charging the poppet through the valve bushing and large holes in an upper portion of the valve bushing. The large holes also provide for discharge of air behind the poppet and through the valve bushing to the atmosphere.

Abstract: To load fastening elements into the muzzle end of the barrel in an explosive powder driven setting gun, a tubular shaped feeding device is pivotally connected to the housing of the gun for movement between a first position where a fastening element can be inserted into the feeding device and a second position where the tubular shaped feeding device is aligned with the muzzle end of the barrel. An ejector is movably positioned in the feeding device for inserting a fastening element into the muzzle end of the barrel. The feeding device includes a member which prevents displacement of the barrel into the firing position when the feeding device is in the second position.