Patent ID: 7296448

Claim:
A locking device, said locking device combining mechanical and electromagnetic access security components within a securing structure, said locking device comprising: (a) an electromagnetic field generating device, said electromagnetic field generating device being the sole source of electromagnetic force within said locking device, said electromagnetic field generating device comprising: (1) a single solenoid, and (2) a single metal solenoid housing, said metal solenoid housing comprising a separate physical article from said solenoid and said mechanical lock components, (3) a single cylindrical solenoid casing, said cylindrical solenoid casing comprising a separate physical article from said single metal solenoid housing and said mechanical lock components, said cylindrical solenoid casing comprising a separate physical article from said solenoid, said cylindrical solenoid casing enclosing said solenoid, said metal solenoid housing enclosing said cylindrical solenoid casing, (b) a single electronically controlled obstructing component with an attached hollow stem, said electronically controlled obstructing component physically obstructing a single mechanical component when said electronically controlled obstructing component falls from a zero magnetic field created by said solenoid, (c) A single pivoting deadbolt or hookbolt, said pivoting deadbolt or hookbolt rotating to a retracted position, said deadbolt lacking electromagnetic components, said pivoting deadbolt or hookbolt cooperating with said remaining mechanical components, said deadbolt or hookbolt positioned exterior to said electromagnetic field generating device, said single electronically controlled obstructing component being the sole component within said locking device which electromagnetically initiates retraction of said pivoting deadbolt or said hookbolt.