Door lock
OwnerArthur Vorobinventor
Life of this patent
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Abstract
A two dead bolt door lock is disclosed wherein the bolts are transversely disposed and wherein the bolts are disposed one behind the other in the locked position so as to provide a secure locking mode. When door mounted, and in the locked position, a vertical bolt is disposed on the inside of the door adjacent the jamb and a horizontal bolt is mounted in the jamb. Attempts to jimmy the horizontal bolt in its line of least resistance are frustrated by the presence of the vertically locked bolt acting against the jimmying force. The locks are both operated by a single key actuated cylinder and/or hand knob through a common connection rod with coordinated cam actions. In another embodiment, keys may be employed on both the inside and the outside of the door.
Claims18
A lock comprising a first frame portion and a first bold slidable with the first frame portion, a second frame portion and a second bolt slidable with the second frame portion, means for operably interconnecting said bolts, further comprising means to mount said frame portions to a door, and wherein said first bolt is horizontally disposed and said second bolt is vertically disposed when the lock is mounted to the door, said vertically disposed bolt being mountable so as to be disposed on a side of the door, and said vertically disposed bolt having a leading portion to engage a receiving member mounted adjacent the door jamb, and the horizontally disposed bolt being mountable on the door and having a leading portion to slide into a receiving member recessed within the door jamb, said leading portions of said bolts being transversely disposed one directly behind the other and being spaced one behind the other when in the respective receiving members to provide a locked position and means to actuate said interconnecting means being mounted more adjacent one frame portion than the other frame portion whereby the actuating means causes the interconnecting means to slide the leading portions of both bolts from the respective frame portions into the respective receiving members to the locked position.
Dependencies are inferred from the claim text.