Industry Patents

Patent: 7872585

Intruder Deterrent System

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Patent Number: 7872585 
Title: Intruder Deterrent System 
Abstract: A system and a method for operating an intruder deterrent system by which a smoke screen is generated in response to an intruder being detected, a smoke screen generator operatively linked to the intruder detecting. To achieve an intruder deterrent system that can operate for a longer period after interruption in the power supply, latent heat is stored in a heat storage, and smoke can be generated by transferring the latent heat from the heat storage to a liquid, which liquid is evaporated. The use of the heat storage has led to the unexpected result that the smoke generator can operate independently of power to the heating elements for a very long period.  
Country of Issue: US 
First Named Inventor: Scully 
Assignee: Martin Professional 
Continuation or Divisional of:  
International Classification: G08B 17/10 
US Classification: 340/628 
Issue Date: 01-18-2011 
Filing Date: 04-23-2008 
Application : 12/107845 
Notes:  
Link to Patent at freepatentsonline.com: 7872585 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7872585 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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