Patent Number: 6,297,745

Title: Housing for an alarm

Abstract: A housing for an alarm includes a base adapted for mounting on a wall, a cover detachably connectable to the base and a sabotage detector for triggering an alarm signal in the event of unauthorized removal of the cover or forcible removal of the alarm from the wall. The base includes a breakaway portion which can be formed as strip-shaped region bordered by weak points. A number of screw insertion points extend through the breakaway portion for fastening the breakaway portion to a wall with one or more screws. A web projects from the breakaway portion and towards the cover such that when the housing is closed, the web engages a contact switch mounted in the cover. In the event of the housing being ripped off the wall, the strip-shaped region is broken off the base and remains on the wall, thereby opening the contact switch. The web is also disengaged from the contact switch in the event of unauthorized removal of the cover from the base.

Inventors: Meier; Marco (Oetwil am See, CH)

Assignee: Siemens Buildings Technologies AG

International Classification: G08B 29/00 (20060101); G08B 29/04 (20060101); G08B 023/00 ()

Expiration Date: 10/02/2018