Super secure lock
First Claim
1. In a lock for a swinging door, a plate having a generally flat portion attached to the door jamb at a location within the crack between the door and the door jamb and extending inwardly through said cRack and terminating in a curved portion overlapping and abutting the inside of the door jamb, the flat portion of the plate having an opening therein located inwardly of the door, said lock including an outer housing having a reduced diameter end portion for selectively projecting through the opening in said plate, there being diametrically opposed apertures in said reduced diameter end portion, ball members moveably mounted in said apertures to extend outwardly behind the plate at the inside of the door jamb to attach the lock to the plate at the inside of the door, an inner dogging member mounted in said housing, and a cylindrical fitting on the end of said dogging member for selectively maintaining said ball members in an outer position and for selectively permitting said ball members to move to an inward position.
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Accused Products
Abstract
A lock is provided that includes a plate having an opening therein for selectively receiving a lock for holding doors securely closed. In order to unlock the device, in one form of the invention an inner plunger must be moved. In a second form the plunger must be moved in a predetermined manner to permit unlocking thereof. In another form of the device a key is used to move the parts to unlocked position.
46 Citations
6 Claims
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1. In a lock for a swinging door, a plate having a generally flat portion attached to the door jamb at a location within the crack between the door and the door jamb and extending inwardly through said cRack and terminating in a curved portion overlapping and abutting the inside of the door jamb, the flat portion of the plate having an opening therein located inwardly of the door, said lock including an outer housing having a reduced diameter end portion for selectively projecting through the opening in said plate, there being diametrically opposed apertures in said reduced diameter end portion, ball members moveably mounted in said apertures to extend outwardly behind the plate at the inside of the door jamb to attach the lock to the plate at the inside of the door, an inner dogging member mounted in said housing, and a cylindrical fitting on the end of said dogging member for selectively maintaining said ball members in an outer position and for selectively permitting said ball members to move to an inward position.
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2. A device as claimed in claim 1 wherein the dogging member is selectively manually rotatable and moveable inwardly.
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3. A device as claimed in claim 2 and further including a coil spring circumposed on said dogging member.
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4. A device as claimed in claim 3 and further including a chain connect to said dogging member.
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5. A device as claimed in claim 1 and further including a key slot in said dogging member for receiving a key.
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6. A device as claimed in claim 5 and further including a flat bar portion on said dogging member for engaging said ball members.
Specification