Hilti Aktiengesellschaft

Consultengineerip Ag

Dac System Sa

Christoph Würsch

Torsten Gogolla

Roland Schaer

Reinhard Waibel

Josef Schittl

Eduard Sever

Harald Schmitzer

Marcus Flock

Guenther Veik

Peter Hricko

Andreas John

Ulrich Gubler

Georg Studer

Patrik Cipriano

Tindaro Pittorino

Paolo Delmastro

Adrian Weitnauer

Hans Böni

Günther Veik

Ricardo Teixeira

Alexander Grosser

A roller electrode assembly () for applying a high-frequency alternating electric field to a workpiece () has a core () which is at least partially made of electrically conductive material and surrounded by a tire () which can be filled with a protective gas and is made of a dielectric material.

Roller electrode arrangement, apparatus comprising a roller electrode arrangement, and method for applying a high-frequency alternating electric field to two plastic material portions

A handheld scanning subsurface detector () includes a detector module () and a computing unit () located in handheld housing (), a guide () for guiding the detector module () at a predetermined distance over a to-be-analyzed wall surface (), at least one path sensor () connected to the computing means () and connected, in a controlling manner, to the detector module () by controlling means (). A corresponding control method is also described.

Handheld scanning subsurface detector

A control wall saw includes a guide rail () securable on a to-be-cut wall (), a saw head () displaceable along the guide rail (), a rotary drive, a pivotally adjustable saw arm () on a radially end of which a rotatably driven, disc-shaped saw blade () is releasably mountable, a programmable control element () for controlling at least the saw head () and the saw arm () and having an input () and an output (), a displacement sensor () for determining a position of the saw head () along the guide rail () and connected with the programmable control element (), and a pivot angle sensor () for determining a pivot angle (&#x3b1;) of the saw arm () relative to a longitudinal direction of the guide rail () and connected with the programmable control element ().

Controlled wall saw and method for controlling the wall saw

For the automatic determination of the diameter of a tool, particularly a saw blade for an automatic wall saw, which is driven by a motor via a gear unit, the moment of inertia of the tool is used as an indicator for its diameter. Three basic solution variants are introduced. In particular, the system including a motor, gear unit and tool is treated as a dual-mass oscillator such that the elasticity of the shafts and gears is arranged as a torsion spring between the inertial masses in two discrete points while taking into account two coefficients of friction including coefficients of the known inertia of the motor rotor (&#x398;) and of the tool (&#x398;). This system can be described by equations which are then simplified by reasonable assumptions or premises. The selected formulations are solved for the moment of inertia of the tool to determine the diameter therefrom and to make an optimal adjustment for the drive possible which is adapted to the respective tool.

Method and device for the automatic determination of the diameter of a round disk-like tool driven by a motor

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Werdenberg, Switzerland

Christoph Würsch