Robert Boschgmbh

Stefan Sittenauer

Bernd Siber

Ulrich Oppelt

Andreas Hensel

Jack McNamara

Gottfried Ernst

An electrical apparatus () comprising a base () for being attached to a substrate (), a functional head () which has at least one electrical or electronic functional device (), wherein the functional head () is attached to the base () with a bayonet connection (), wherein the base () has a first contact () and the functional head () has a second contact (), which are contact-connected to one another, wherein the bayonet connection () can be formed by a relative movement of the functional head () in relation to the base () in an axial direction (A), and a subsequent relative rotation, and the first contact () and second contact () can be contact-connected to one another by the relative rotation.

Electrical apparatus, in particular for receiving signals or outputting signals

The present invention relates to a fire alarmthat includes a baseand a fire alarm insert which can be connected to base. A covering capand a sheetlocated between the covering capand the fire alarm insertare provided to cover fire alarm insert

Fire alarm with a transmitter spaced from a receiver through a colored sheet

A fire detector including a base and a fire detector insert connectable to the base. The fire detector insert is connectable to the base by an axial movement and detachable from the base by a subsequent axial movement.

Fire detector

A fire alarm for an installation via a housing that is flush with the ceiling, having at least one light source arranged in the housing and at least one light receiver arranged in the housing, as well as a shutter disk, which seals the housing. To prevent the spreading of stray light between the light source and the light receiver via the shutter disk, a shield, for example, is provided in the shutter disk to suppress or absorb stray light.

Growing community of inventors

Munich, Germany

Stefan Sittenauer