Patent ID: 6976716

Claim:
A portable door lock comprising: a stop member having a slot defined therethrough and a rod movably engaged with the slot, the stop member having a flat side which is adapted to contact an inside of a door; a connection plate composed of a first part and a second part, a hole defined through the first part and a tongue split from the hole so as to be adapted to insert in a recess in a door jamb, a protrusion extending from a back side of the first part and a passage defined through the protrusion, two positioning holes defined through the first part and two bolts extending through the two positioning holes and adapted to be fixed to the door jamb, and the second part having at least one engaging hole defined therethrough and two lugs extending from an end of the second part, each lug having a through hole and the protrusion located between the two lugs and a pin extending through the two lugs and the passage in the protrusion.