Patent ID: 7540542

Claim:
An electric strike, comprising: a housing; a keeper pivotally mounted to said housing; an actuating device controlled by an electrical signal, arranged internal to said housing and moveable between two positions; a single mode control screw mounted to said electrical strike and positioned to hold said actuating device in one of at least two device positions when said screw is tightened, said screw also capable of moving between two screw positions by loosening said screw, the movement of said screw causing movement of said actuating device between said device positions, wherein said screw does not have to be completely removed to allow movement of said actuating device between said device positions; and a blocking element connected to said actuating device, in one of said two mode control screw positions said blocking element blocking pivot of said keeper when said electrical signal is lost, and in the other of said mode control screw positions allowing pivot of said keeper when said electrical signal is lost.