Door knob unlocking tool kit
OwnerJames M. Jonesinventor
Life of this patent
Estimating the term…
Abstract
A tool kit for unlocking a door knob lock set which bypasses the cylinder and pin pairs which normally must be aligned properly with the proper key. The tool kit includes a pin lifting tool which is used to move the pins so that a forked tool is inserted into the key way, through the cylinder, through an aperture in the end of the cylinder and on to the shaft which must be turned to unlock the lock. The forked tool straddles the shaft and then the forked tool is turned, thereby turning the shaft and unlocking the lock.
Claims19
An improved door knob unlocking apparatus for a door knob lock having a cylinder rotatably disposed within a barrel of a door knob, the cylinder including a pair of opposing cylinder lugs extending radially inward from a rear wall of the cylinder wherein the rear wall of the cylinder includes a slot therethrough whereby a distal end of a longitudinal shaft extending from a cam mechanism of the lock cooperatively engages the cylinder lugs for locking and unlocking an opposing connecting second doorknob and allowing the first doorknob and second doorknob to turn, the cylinder and the barrel having a plurality of parallel transverse coaxial pairs of cylindrical voids formed therein and a spring urging a plurality of pins of various lengths cooperatively engaging the barrel through corresponding coaxial cylindrical voids, one pin above the other, toward a center of the cylinder, the cylinder having a key way formed in a first end thereof, the pin pairs preventing the turning of the cylinder within the barrel unless the pins are urged against the springs at a selected position wherein each of a top one of the pairs is totally contained within the cylindrical void formed within the barrel and each of a lower one of the pin pairs is totally contained within the cylindrical voids formed within the cylinder, wherein a selected key inserted into the key way aligns the pins for turning the cylinder within the barrel, the cylinder including an aperture formed within a second end thereof, wherein the apparatus improvement comprises:
- a pin lifting tool comprising a first longitudinal member extending from the end thereof, said first longitudinal member having a width and height less than said key way and a length sufficient to contact and lift all of said pin pairs up into said cylindrical voids;
- and
- a forked tool comprising a second longitudinal member including a fork formed on a distal end thereof, said fork having a width and height less than said key way, said second longitudinal member having a length sufficient to extend pass said pins, and thorough said slot in said rear wall of said cylinder to cooperatively engage a distal end of said rectangular shaft, said forked tool passing through said key way beneath said first longitudinal member of said pin lifting tool holding said pin pairs within said cylindrical voids for locking or unlocking said door knob lock.
An improved door knob unlocking apparatus for a duel doorknob locking assembly having a first door knob lock including a cylinder rotatably disposed within a barrel, said cylinder including a pair of opposing cylinder lugs extending radially inward from a rear wall of said cylinder wherein said rear wall of said cylinder includes a slot therethrough whereby a distal end of a longitudinal shaft extending from a cam mechanism of said lock cooperatively engages said cylinder lugs for locking and unlocking an opposing connecting second doorknob and allowing said first doorknob and second doorknob to turn, said cylinder and said barrel having a plurality of parallel transverse coaxial pairs of cylindrical voids formed therein and a spring urging a plurality of pins of various lengths cooperatively engaging said barrel through corresponding coaxial cylindrical voids, one pin above said other, toward said cylinder center, said cylinder having a key way formed in a first end thereof, said pin pairs preventing said turning of said cylinder within said barrel unless said pins are urged against said springs at a selected position wherein each of a top one of said pairs is totally contained within said cylindrical void formed within said barrel and each of a lower one of said pin pairs is totally contained within said cylindrical voids formed within said cylinder, wherein a selected key inserted into said key way aligns said pins for turning said cylinder within said barrel, said cylinder including an aperture formed within a second end thereof, wherein said duel doorknob locking assembly unlocking apparatus comprises:
- a pin lifting tool comprising a first longitudinal member extending from said end thereof, said first longitudinal member having a width and height less than said key way and a length sufficient to contact and lift all of said pin pairs up into said cylindrical voids;
- and
- a forked tool comprising a second longitudinal member including a fork formed on a distal end thereof, said fork having a width and height less than said key way, said second longitudinal member having a length sufficient to extend pass said pins, and thorough said slot in said rear wall of said cylinder to cooperatively engage a distal end of said rectangular shaft, said forked tool passing through said key way beneath said first longitudinal member of said pin lifting tool holding said pin pairs within said cylindrical voids for locking or unlocking said door knob lock.
A method of using an improved door knob unlocking apparatus for a duel doorknob locking assembly having a door knob lock including a cylinder rotatably disposed within a barrel, said cylinder including a pair of opposing cylinder lugs extending radially inward from a rear wall of said cylinder wherein said rear wall of said cylinder includes a slot therethrough whereby a distal end of a longitudinal shaft extending from a cam mechanism of said lock cooperatively engages said cylinder lugs for locking and unlocking an opposing connecting second doorknob and allowing said first doorknob and second doorknob to turn, said cylinder and said barrel having a plurality of parallel transverse coaxial pairs of cylindrical voids formed therein and a spring urging a plurality of pins of various lengths cooperatively engaging said barrel through corresponding coaxial cylindrical voids, one pin above said other, toward said cylinder center, said cylinder having a key way formed in a first end thereof, said pin pairs preventing said turning of said cylinder within said barrel unless said pins are urged against said springs at a selected position wherein each of a top one of said pairs is totally contained within said cylindrical void formed within said barrel and each of a lower one of said pin pairs is totally contained within said cylindrical voids formed within said cylinder, wherein a selected key inserted into said key way aligns said pins for turning said cylinder within said barrel, said cylinder including an aperture formed within a second end thereof, wherein said duel doorknob locking assembly unlocking apparatus comprising the steps of
- inserting a pin lifting tool first longitudinal member into a key way lifting said a plurality of spring loaded pin pairs up into said cylindrical voids and holding said pins in a nonengaging uplifted position;
- and
- inserting a fork extending from a distal end of second longitudinal member through said key way beneath said pin lifting tool and past said pins, through a slot formed in said rear wall of said cylinder to cooperatively engage a distal end of a rectangular shaft extending from a cam mechanism of said opposing connecting second doorknob;
- and
- rotating said forked tool unlocking or locking said lock allowing said first doorknob and second doorknob to rotate.
Dependencies are inferred from the claim text.