Hilti Aktiengesellschaft

Armin Hoffman

Armin Herb

Stefan Unverzagt

Dieter Soehnlein

Josef Neuhoerl

A mounting rail with a C-shaped cross-section extends in a length dimension (L) and has a rear or second wall ( ) with side walls ( ) extending at right angles to the second wall. Each side wall ( ) has on its exterior surface ( ) a recess ( ) running in the length dimension (L), whose cross-section is essentially rectangular. To assure optimum stability of the mounting rail, the depth (t) of the recess ( ) is less than the wall thickness (d) of the side walls ( ).

Shaped mounting rail

A fastening device for securing tubes, pipes and the like is formed of a mounting rail ( ) having a C-shaped cross-section and an elongated space ( ) and a retaining plate ( ). The retaining plate ( ) has a tapped through hole running transverse to the elongated space ( ), the tapped hole has an internal thread for form-locking reception of a fastening element. Further, the retaining plate ( ) has on the side ( ) facing inwardly from the elongated space ( ), at least one web facilitating rigidity and positioning, in order to provide a manageable and economical fastening device with high load capacities (P).

Fastening devices

A composite piston for ejecting a plastic mass from a receptacle includes a piston head and a pressure component which in combination form a chamber. The piston head and pressure component are displaceable within the receptacle from an insertion position into a locked position. When being moved into the locked position, a part of the plastic mass flows through an opening in the piston head into the chamber. After the locked position is established, the opening in the piston head is closed by an extension on the pressure component.

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Landsberg, Germany

Armin Hoffman