Door lock

Details Door lock Door lock

1996-12-26

1998-03-31

Wilson, Neill R.

Closure fasteners

Bolts

Multiple

292 67, 292 69, 292DIG17, 292DIG51, E05C 100, E05C 500

Patent

active

057329869

ABSTRACT:
A door lock has a base securable to a door or door frame, and a locking arm pivotally connected to the base and movable when the base is secured to the door or the door frame to a blocking position where the door is prevented from opening and a retracted position where the locking arm is retracted from the door locking position. The locking arm is biased to the retracted position to facilitate closing the door when the base is secured to the door or to the door frame. A locking device is slidably mounted on the base for sliding movement to a locking position in a direction parallel to the plane of the door to engage the locking arm and hold the locking arm in the blocking position against the biasing when the door is closed, thereby locking the door. The door is unlocked by sliding movement of the locking device to an unlocking position in a direction opposite to the first mentioned direction to become disengaged from the locking arm, whereby the biasing returns the locking arm to the retracted position.

REFERENCES:
patent: 3811150 (1974-05-01), Chalmers
patent: 3969788 (1976-07-01), McCullough
patent: 5080354 (1992-01-01), McDougall
patent: 5509235 (1996-04-01), Chander

Affiliated with

Also associated with

Rating

Door lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Door lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-45766