Locking device

A locking device for a door or the like, comprising:

• (a) a housing;
• (b) a bolt supported for movement between a retracted position wherein said bolt is fully within said housing and a locking position wherein said bolt is partially outside said housing;
• (c) an actuating member slidably mounted within said housing, said actuating member comprising a first cam member on an end portion thereof, said first cam member extending outside said housing when said actuating member is partially outside said housing, and a second cam member within said housing;
• (d) means operatively associated with said actuating member for biasing it into a position wherein said actuating member is partially outside said housing when the door is open;
• (e) means operatively inter-relating said bolt and said actuating member for moving said bolt into its locking position when said actuating member is moved into a position substantially within said housing, said means inter-relating said bolt and said actuating member including a rotary cam connected at one end portion to said bolt and actuated rotatably by said second cam member when said first cam member is pressed inwardly upon a closing of the door, said actuation of said rotary cam adapted to move said bolt into its locking position.
• (f) an electromagnetically actuated plunger within said housing;
• and
• (g) means operatively associated with said plunger for retracting said bolt from said locking position upon electromagnetic actuations of said plunger.