Patent ID: 7317263

Claim:
A lockdown device for a power tool comprising: a relay housing having first and second ends, an electrical relay mounted in said housing, said relay having an electrical input side and an electrical output side, a mounting means mounted to said first end of said housing so as to extend therefrom, said mounting means adapted for mounting into an aperture in a power tool so as to be locked thereto and so as to be immovable therefrom without dismantling of the power tool, an electrical power cord receptacle formed in said second end of said housing for mounting, in electrical communication, a power cord to said input side of said relay, an electrical conductor mounted to said output side of said relay for electrical connection to a power switch of the power tool, a processor mounted in said housing and communicating with said relay for selectively electrically opening and closing said relay upon instructions from said processor, said processor including means for detecting a mains electrical power supply when the power cord is mounted to said power cord receptacle and when the power cord is connected to a mains electrical power supply, said processor further comprising means for sequencing opening of said relay following a pre-set delay by a delay means upon detection by said processor of an absence of, or loss of the mains electrical supply to said processor and said relay, an externally accessible activating means on said housing for selective closing of said relay by a user upon provision by the user of a key cooperative with said activating means, wherein said key may be physically removed from said activating means, once said relay is activated into said closed position, without opening said relay.