Robert Boschgmbh

Falk Herrmann

Arati Manjeshwar

Gottfried Flik

Dietmar Hahn

Jason Hill

Martin-Peter Bolz

Robert Edwin Walters

Heinz Eisenschmid

James E Berube

Sim Teik Yeoh

Achim Neubauer

Jochen Moench

Manfred Moellendorf

Scott Wager

Patrick A Parker

Markus Thuersam

Chuan Cheong Yew

Gabor Kocsis

Bart Skold

Sonja Tiedemann

Patrick Vervaele

Gunther Schwarz

Peter Theunissen

Joachim Kwasny

Wilhelm Weissgerber

HuoyHuoy Lim

Patrick Parker

A handheld machine tool having an output shaft on which a tool holding fixture is developed, which has a multi-faced inner receptacle and a multi-faced outer receptacle, the multi-faced inner receptacle to connect to a tool insert, which can be locked using a locking device assigned to the tool holding fixture; the locking device having a locking sleeve which is displaceable for unlocking the tool insert against a spring force applied by an associated spring element in an axial direction facing away from the handheld machine tool, from a locking to an unlocking position, the locking sleeve has an operating element and a holding element connected to each other via a threaded connection, the holding element driven by the associated spring element in the direction of the locking position of the locking sleeve and the operating element enables displacement of the locking sleeve from the locking to the unlocking position.

Handheld machine tool

A method and apparatus is provided to supervise a network, in which a first device supervises a network node element, and a second device partially supervises the network node element.

Method and system for providing reliable communication with redundancy for energy constrained wireless systems

A method to wirelessly network a sensor/actuator node is described. The sensor/actuator node is installed in a sensor/actuator node network and arranged in a hierarchical manner with a plurality of node levels and a cluster head network. A unique node identifier is assigned to the sensor node and the sensor node network is initialized. The sensor node is woken-up to perform a task and then set to an active low power mode.

Protocol for reliable, self-organizing, low-power wireless network for security and building automation systems

Keypad devices have become commonplace in everyday life. They are part of our everyday life, in the form of pocket calculators, telephones, remote control devices, and cellular phones. Cleaning these keypad devices is problematic, since they have a large number of actuatable keys, due to the functions to be performed. As a mechanical interface in the keypad device, each key is a critical weak point in terms of maintaining a tight seal. An easy-to-clean keypad device, in particular an emergency call device, has a main body, an electronic assembly&#x2014;which includes circuit elements and is installed in main body&#x2014;a closing shell and keys, which are installed in closing shell and are designed to mechanically actuate the circuit elements. Closing shell with installed keys is a first preinstalled assembly, and main body with installed electronic assembly is a second preinstalled assembly. The first and second preinstalled assemblies are interconnected such that they may be separated.

Easy-to-clean keypad device

A method for shared access of a communication channel is provided, which includes dividing access to the communication channel into a plurality of time slots, and allocating the time slots, at least partially, based on a priority of use of the communication channel.

Method and system for providing a modified timed division multiple access (TDMA) for reduced delay

A method of installing a security system includes placing a security device at an installation location. An air-borne signal is transmitted to the security device. An indication of a quality of the signal as received by the security device is displayed on the security device.

Method of installing a wireless security system

A device for opening and closing an opening (), in particular in a motor vehicle, by means of a motor-driven, movable part (), with a control unit () and a pinch prevention sensor (), which is disposed essentially along an edge () of the part () and/or of a frame profile () bordering the opening () and which, during the closing of the part (), detects an obstacle () that is in the movement path of the part () and sends a signal to the control unit () in order to stop or reverse the movement of the part (), wherein the pinch prevention sensor () has a highly elastic, electroactive polymer (EAP) material (), in particular polyurethane, fluoroelastomer, polybutadiene, fluorosilicone, or silicone, disposed between electrodes (), which produces a voltage change in the electrodes () in the event of a deformation.

Device for opening and closing a mobile element

A modular intrusion detection system that includes a base unit having a primary intrusion detection device and a housing. The primary housing includes a base housing section and an outer cover. The base housing section includes a first mounting interface. A plurality of different secondary housing sections having a second mounting interface which can be attached to the first mounting interface of the base housing section are provided. The secondary housing sections may have a functional device, such as a CCD camera or a microphone, associated therewith. The camera or microphone may be activated to an alarm signal generated by the intrusion detection device. A plurality of different base units, each having an intrusion detection device, may also be provided wherein each of the base units is attachable to each of the secondary housings, and secondary devices associated therewith, to provide flexibility in assembling individual devices.

Modular intrusion detection system

A sensor arrangement for ascertaining the density and the viscosity of a liquid is proposed, having an arrangement comprising at least two basic sensor elements, at least one of which can be wetted with the liquid, and having electro-acoustical transducers ( ) in the basic sensor elements for generating and detecting surface acoustic waves with predetermined wave modes, from whose propagation behavior along a measurement path a measure for the density and the viscosity of the liquid can be ascertained. Liquid traps ( ) for the liquid, which extend in the applicable measurement path, are disposed in the region of at least one of the basic sensor elements, parallel to the direction of propagation of the surface acoustic wave.

Sensor array and method for determining the density and viscosity of a liquid

An oscillatory micromirror having a cantilevered mirror surface is joined using at least one torsion axis formed by at least one torsion beam mounted on the mirror surface, to a support member that surrounds at least portions of the mirror surface. There is located between at least one of the torsion beams and the support member a flexural beam that performs a flexural oscillation which induces a torsional oscillation of the mirror surface about the torsion axis. At a suitable frequency, large amplitudes of the torsional oscillation may be provided by small amplitudes of the flexural oscillation.

Deflectable micro-mirror

A sensor arrangement for ascertaining physical properties of a liquid is proposed, having electro-acoustical converters ( ) on a substrate ( ) which are wettable with the liquid and are suitable for generating and detecting acoustical surface waves with predetermined wave modes. A Y-rotated quartz slice is used as the substrate ( ), and above the substrate ( ) is a waveguide layer ( ); the standard of the Y rotation of the quartz slice and the material of the waveguide layer ( ) are selected such that an extensive temperature compensation within the range of temperature of the liquid to be investigated is obtained.

Sensor arrangement for detecting the physical properties of liquids

A sensor which has a bending reed and a piezoelectric resonator. Due to excitation by the piezoelectric resonator, the bending reed can be excited to vibration in a measurable medium. In this context, the vibration frequency and the damping of the bending reed are a function of the density and the viscosity, respectively, of the measurable medium. This can be measured by a piezoresistive element, and thus the density and viscosity of the measurable medium are ascertained.

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Fairport, NY, United States of America

Falk Herrmann