Abstract: A compliant link has a first member adapted to be connected to a linear actuator and a second member adapted to be connected to a component to be moved by the linear actuator, said members being interconnected by a connecting rod which is moveable relative to both the first and second members, springs acting between the first and second members and the connecting rod to oppose relative movement between the connecting rod and the first and second members when an axial load below a first predetermined value is applied to one of the members.

Abstract: A release bearing (1) for actuating a gearshift clutch of an automotive vehicle comprises an angular contact ball bearing (3) in which forces are transmitted from one bearing raceway to another bearing raceway at an angle of pressure .alpha. to the transverse plane of the angular contact ball bearing (3). To improve the bearing capacity of such a release bearing (1), the angle of pressure .alpha. is configured to be .gtoreq.36.degree. and <45.degree.. Friction between the balls and the raceways of the angular contact ball bearing is reduced by the fact that an osculation K.sub.AU on the outer ring (6) is .gtoreq.1.15 and an osculation K.sub.IR on the inner ring (10) is .gtoreq.1.07.

Abstract: An electromagnetic drive mechanism (1) for the periodic movement of at least one valve (2) for gas exchange of an internal combustion engine is provided. The valve (2) includes a disc-type rotor (9) located at an end (8) of its shaft (5). The rotor (9) is surrounded by a stator (12), a small gap (22) located between the rotor and the stator. The rotor (9) and stator (12) have ring windings (10, 13). When the stator (12) is supplies with electric voltage from a voltage converter (13a) with a microprocessor (14), the rotor (9) with the valve (2) is moved axially by the magnetic field which forms.

Abstract: In a communication system having a function or performance feature to be protected, the periodic transmission of encoded interrogation information is initiated by a security routine to ensure that the function or performance feature is protected. The protected function is activated and further-executed only if reply information which is also encoded is received from a connected crypto-unit in a predetermined time span after a transmission of the interrogation information.

Abstract: A tensioning device for a traction element includes a tensioner arm having a tension roller which is spring-loaded against the traction element. The tensioner arm is rotatably supported relative to a housing by means of a conical sliding bearing exhibiting parallel sliding bearing surfaces which extend concentric to the tensioner arm shaft. A helical torsion spring wound along the tensioner arm shaft and clamped between a support secured on the tensioner arm and a fixed support area exerts an axial force which is introduced into the sliding bearing as a reaction force perpendicular to the sliding bearing surfaces.

Abstract: In a belt or chain tensioner a sliding bearing ring is arranged between an element rigidly connected to the housing and an element rigidly connected to the tension arm. In order to achieve an improved damping, the sliding bearing ring is provided at one place with a through-slot into which engages a projection on one of the two elements. In addition, the sliding bearing ring is preferably provided with at least two, and preferably more, axially oriented grooves which define narrow and flexible lamellae formed between them. The lamellae are inclined with respect to and bear against a facing peripheral surface of one of the two elements in order to obtain a direction-dependent damping, since the lamellae are easily pushed aside in one direction of rotation but are entrained and pushed up into an upright position in the opposite direction of rotation.

Abstract: A radial bearing which can be pressurized by a pressure medium and is arranged between two elements of a load-switchable transmission which rotate at different speeds, a hydraulic pressure medium flowing through the radial bearing causing engagement of a multiplate clutch, and radial sealing rings (10,11) being arranged between the two elements of said transmission in a region of the radial bearing on each side of a pressure medium passage, characterized in that the radial bearing is configured as a rolling bearing whose rolling elements (7,8) are bearing needles guided in a cage (9) which comprises several preferably circumferentially uniformly spaced radial through-apertures (20).

Abstract: A needle roller bearing (1) comprising an outer bearing ring (6), an inner bearing ring (8) arranged on a shaft (3) and needle rollers (9) which roll on mutually facing peripheral surfaces of said outer and inner bearing rings (6,8), characterized in that at one axial end, the outer bearing ring (6) and the inner bearing ring (8) comprise radially overlapping flanges (11,12) located axially next to each other with an axial sliding ring (13) arranged therebetween which bears against mutually facing end faces of said flanges (11,12) and, together with these flanges (11,12) and a peripheral surface of one of the bearing rings (6), defines a pressure chamber (15), pressure oil from the interior of the bearing penetrating into this pressure chamber (15) and flowing from there with a clear loss of pressure out of the needle roller bearing (1) by passing between at least one of said end faces of the flanges (11,12) and the axial sliding ring (13).

Abstract: In producing hollow bodies by blow molding from thermoplastic material, a preferably tubular preform is firstly formed, and is then expanded within the blowing mold under the effect of an inert gas under high pressure, until it bears entirely against the inside surface of the blowing mold. Thereafter, a reaction gas such as fluorine is introduced into the hollow body under a considerably lower pressure, while the hollow body is still in the mold, to treat the internal surface of the hollow body to render it impervious to gas and/or liquid. After the reaction has elapsed, a flushing and cooling gas is introduced into the hollow body and is then removed from the blowing mold after the hollow body has sufficiently set.

Abstract: In producing hollow bodies by blow molding from thermoplastic material, a preferably tubular preform is firstly formed, and is then expanded within the blowing mold under the effect of an inert gas under high pressure, until it bears entirely against the inside surface of the blowing mold. Thereafter, a reaction gas such as fluorine is introduced into the hollow body under a considerably lower pressure, while the hollow body is still in the mold, to treat the internal surface of the hollow body to render it impervious to gas and/or liquid. After the reaction has elapsed, a flushing and cooling gas is introduced into the hollow body and is then removed from the blowing mold after the hollow body has sufficiently set.

Abstract: A closure adapted to be applied to a neck of a vessel or container so as to seal a comparatively wide mouth in said neck has a rim or skirt which is divided up into a plurality of sections by slits between the sections depending from a lid portion of the closure and a stressing or tensioning band placed around the rim, the arrangement being such that there is at most only slight engagement between corresponding screw threads or the like on the neck and in the skirt when the closure is applied to the neck, full sealing engagement between the said screw threads being produced by tensioning of said band after the closure is in position on the neck, such tensioning causing the initially radially outwardly splayed said sections to be pulled radially inwardly on to the neck. The vessel and closure are preferably of thermoplastic material.