Abstract: In a piston seal element and a deceleration structure including a piston seal element which has a deformation area delimited in the longitudinal direction of the seal element by frontal face areas and a sleeve surface area with at least one channel extending between the two frontal face areas, the channel extends screw thread-like around the seal element between the frontal face areas thereof.

Abstract: In a cement anchor for use in connection with light-weight construction panels, wherein the anchor comprises a cylindrical body with at least one piston forming with the cylindrical body a displacement area in which a meltable cement is disposed together with a heatable melt body, the melt body is heated just before the anchor is inserted into a bore in the panel so that the cement is liquefied and, upon compression of the anchor, is displaced from the displacement area into the space around the anchor, so that, upon solidification of the cement, the anchor is firmly connected to the lightweight construction panel.

Abstract: In a cement anchor for use in lightweight construction panels which anchor comprises a cylindrical body and at least one piston body and which includes a sealed cylinder interior filled with a flowable cement, the cylindrical body has at opposite ends at least one discharge opening which is closed but can be opened by a pressure-controlled valve structure for discharging the cement to the ambient area when installed in the lightweight construction panel.

Abstract: In an anchor for installation into a lightweight construction panel including at least a cover plate, wherein the anchor includes a radial clamping section for firm engagement with the cover plate when installed in a bore formed into the construction panel, the radial clamping section comprises an upper zone provided with axial grooves and a lower zone having transversely extending grooves both in engagement with the walls of the bore in the area of the cover plate.

Abstract: In an anchor installation in a lightweight construction panel having spaced cover plates with a support core disposed therebetween, wherein an anchor installed in a bore extending through at least one of the cover plates and the support core includes an expansion body having engagement elements spreading outwardly behind the cover plate to lock the anchor in the bore, the expansion body includes an axial bore fittingly accommodating a needle for the injection of cement into the expansion body and distribution passages for the distribution of the cement to various cavities in and around the expansion body for firmly fixing the anchor in the lightweight construction panel.

Abstract: In an anchor installation in lightweight construction panels including first and second cover plates with a support core structure disposed between the cover plates, wherein the anchor is installed in a bore extending through the first cover plate, the support core structure and into the second cover plate, the anchor includes engagement components firmly engaging the first cover plate, the intermediate support core structure and also the second cover plate so that the anchor is safely and firmly held in position in the lightweight construction panel.

Abstract: In an anchor installation in a lightweight construction panel including first and second cover plates with a support core structure disposed between the cover plates, wherein the anchor is installed in a bore so as to extend at least through the first cover plate and the support core to the second support plate, the anchor includes engagement structures for engagement with at least the first cover plate and the support core and also cement containing balloons which are crushed upon insertion of the anchor thereby releasing the cement which solidifies forming a firm connection between the anchor and the first and second cover plates and the support core.

Abstract: In an engagement bushing installation for the connection of a lightweight construction panel including spaced first and second cover plates with a support layer disposed therebetween to another structure by a mounting element extending through a passage in the construction panel, the passage includes a first section which extends through the first cover plate and the support layer and a second section of smaller diameter extending through the second cover plate for accommodating the mounting element, an expansion sleeve is disposed in the first section so as to abut the second cover plate and the part of the expansion sleeve disposed in the first cover plate is radially expandable so that it can be expanded into radial engagement with the first cover plate while it is axially engaged with the second cover plate when the lightweight construction panel is engaged by the mounting element with the other structure.

Abstract: In a pull arrangement including a housing with a guide structure movably supporting a carrier element which has a park position at one end of the guide structure and a rest position at the other end and a reversing structure is provided at the other end of the guide structure and a tension spring extending around the reversing structure is connected with one end to the carrier element and the opposite end to the housing for moving the carrier element to the end position, the tension spring comprises an area of high spring stiffness where it extends around the reversing structure and an area of low spring stiffness where the spring is connected to the housing away from the reversing structure.

Abstract: In an anchor for the attachment to flat building panels including two cover plates and an intermediate support core layer wherein the anchor comprises an expansion body and a wedge body the installed anchor is disposed in an opening of the building component which extends through one of the cover plates and the intermediate support core plate and into a dead end bore formed in the other cover plate. The expansion body includes spreadable clamping elements, wherein, with the anchor installed, the support zone of the expansion body is disposed in radially clamping engagement in the one cover plate and in the dead end bore of the other cover plate.

Abstract: In a friction brake arrangement with emergency braking functions for use with a carriage supported on a guide track, with a friction clamping structure including a friction shoe supported in a housing so as to be disposed adjacent the guide track, a spring element is provided biasing the friction shoe toward the guide track for frictional engagement therewith and also a power operated drive for disengaging the friction shoe from the guide track against the force of the spring element and, furthermore, a blocking member is disposed between the drive means and the spring element and held electromagnetically in the blocking position so that the spring is released and the carriage is locked to the guide track for example upon occurrence of a power outage.

Abstract: Molding materials containA) from 5 to 97.9% by weight of at least one polycarbonate having a weight average molecular weight (M.sub.w) of from 10,000 to 64,000 g/mol,B) from 1 to 93.9% by weight of at least one graft copolymer,C) from 1 to 93.9% by weight of at least one copolymerc.sub.1) at least one vinylaromatic compound of the general formula I ##STR1## where R is hydrogen or C.sub.1 -C.sub.8 -alkyl, R.sup.1 is C.sub.1 -C.sub.8 -alkyl and n is an integer from 0 to 3, or of a C.sub.1 -C.sub.8 -alkyl acrylate, a C.sub.1 -C.sub.8 -alkyl C.sub.1 -C.sub.8 -alkylacrylate or a mixture thereof and c.sub.2) acrylonitrile, C.sub.1 -C.sub.8 -alkylacrylonitrile or a mixture thereof,D) from 0.01 to 10% by weight of at least one polyhydroxyether of at least one aliphatic or aromatic diol with epihalohydrin,E) from 1 to 25% by weight of at least one halogen-free phosphorus compound andF) from 0 to 50% by weight of additives.