Hilti Aktiengesellschaft

Eduard Sever

Franz Huber

Dragomir Ljubojevic

Joachim Vedder

Josef Schittl

Paul Fally

Matthias Mazur

Roland Schaer

Bernd Ziegler

Hans Rupprecht

Xaver Hanslmeier

Georg Holzmeier

Marcus Flock

Guenther Veik

Lionel Barbier

Christoph Würsch

Helmut Specht

Georg Studer

Felix Basalla

Markus Gmeiner

Stefan Franz

Günther Veik

A device for extracting drilling sludge for use at difficult to access locations on a building site includes a main body. The main body has a cavity on a lower side of the main body and a drilling sludge that is disposed in the cavity during a use of the device is extractable from the cavity by a suction device. The main body also has an extraction opening which opens into the cavity.

Device for extracting drilling sludge and the use thereof

A device for introducing openings into a disposal bag for a vacuuming device, wherein the vacuuming device has a suction head and a collecting tank. The includes components that are configured in a manner corresponding to one another, wherein the components of the device that are configured in a manner corresponding to one another include an open structure, wherein the open structure is designed to effect pressure equalization between a first region and a second region of the collecting tank. Within the meaning of the invention, it is preferred for the proposed device to include a punch and a die, wherein the punch is arranged in the suction head and the die is arranged in the collecting tank. In a second aspect, the invention relates to a vacuuming device that includes at least one proposed device. In a further aspect, the invention relates to a method for introducing openings into a disposal bag for a vacuuming device.

Device and method for introducing openings into a disposal bag for a vacuuming device, and vacuuming device

A method for controlling a water supply system for use with a machine tool is disclosed. The water supply system includes a housing with an interface for supplying electrical energy, a water tank, a line, a pump device, a current-measuring device, a water-pressure-measuring device, and a control device. The method includes activating the pump device if the machine tool is connected to the interface and the motor current of the machine tool exceeds a predetermined threshold value, and deactivating the pump device if the machine tool is connected and the motor current undershoots a predetermined threshold value; or activating the pump device if the machine tool is not connected and the water pressure in the line undershoots a predetermined threshold value and deactivating the pump device if the machine tool is not connected and the water pressure exceeds a predetermined threshold value.

Automatic control of assemblies of a water supply system

A mobile electric appliance is disclosed. The mobile electric appliance includes at least one battery bay for accommodating a battery with at least one voltage-generating cell and a battery-side charge status indicator, an electrical consumer, a power connector, as well as a charging device for charging the at least one battery. In addition, the mobile electric appliance includes means for detecting the charge status of the at least one battery and a device-side charge status indicator arranged on the mobile electric appliance. The battery may also include an interface, which is prepared to relay the charge status determined to an external processing unit.

Mobile electric appliance with charge status indicator and battery for it

A vacuum cleaner () including a housing () and a power cord (), and also including a cord holder () arranged on the housing () for purposes of holding the wound-up power cord on the housing (). The cable holder () has for example three holding elements (), each having a free end section () that can be deflected relative to the housing ().

Vacuum cleaner with a cord holder

A vacuum cleaner () with a housing () and a suction hose () as well as to a suction hose holder () arranged on the housing () that has two holding elements () that are at a distance from each other and that each have a receptacle () to hold two sections of the suction hose (), whereby additional holders () are provided at the receptacles ().

Vacuum cleaner with a suction hose holder

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

An attachment element, including a base ( ) having a bearing surface ( ), a clamping member ( ), and a ball ( ) extending through a through-bore formed in the clamping member ( ) an axis of which extends transverse to the bearing surface ( ), with the ball ( ) having a connection member ( ) and a counter-support ( ), and with the connection member ( ) being rotatable relative to the ball ( ) and having, at a region thereof adjacent to the base ( ), a bearing element ( ) projecting into the counter-support ( ).

Growing community of inventors

Ludesch, Austria

Eduard Sever