Security system

Details Security system Security system

2011-01-25

2011-01-25

Trieu, Van T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S531000, C340S315000

Reexamination Certificate

active

07876212

ABSTRACT:
There is provided a security system for an electrical device connected to a mains electricity supply, the security system comprising a confirmation transmitter interposed between the electrical device and the mains electricity supply. The transmitter is arranged to send a confirmation message via the mains supply to a control unit that is operatively connected to the mains supply. The control unit is arranged to activate an alarm if the control unit does not receive the confirmation message.

REFERENCES:
patent: 4978946 (1990-12-01), Nordholm et al.
patent: 5381136 (1995-01-01), Powers et al.
patent: 5714933 (1998-02-01), Le Van Suu
patent: 6995666 (2006-02-01), Luttrell
patent: 7194249 (2007-03-01), Phillips et al.
patent: 7274305 (2007-09-01), Luttrell
patent: 7389104 (2008-06-01), Phillips et al.
patent: 7689711 (2010-03-01), Brouk et al.
patent: 7788399 (2010-08-01), Brouk et al.
patent: 0852367 (1998-07-01), None
patent: 2 854 712 (2004-11-01), None
patent: 2 229 025 (1990-09-01), None
patent: 2 233 485 (1991-01-01), None
patent: 2004/010395 (2004-01-01), None
patent: 2005/092024 (2005-10-01), None
International Search Report for corresponding Application No. PCT/GB2007/050018 mailed Apr. 12, 2007.
British Search Report for corresponding Application No. GB0601075.5 dated Apr. 28, 2006.

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