×

Apparatus for the protection of places such as residences

  • US 4,577,183 A
  • Filed: 03/12/1982
  • Issued: 03/18/1986
  • Est. Priority Date: 03/13/1981
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for the protection of premises such as residences, comprising two chains of human presence detection sensors, a processing unit and reaction mechanisms, one of said chains of human presence detection sensors being located outside said premises, and one of said chains of human presence detection sensors being located inside said premises, said reaction mechanisms including means for simulating a presence inside the premises, controlled by the processing unit to simulate a human presence, and said processing unit including means for modifying the operation of the reaction mechanisms each time a human presence detection sensor is activated.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×