Locks – Special application – For closures
Patent
1986-03-03
1987-08-04
Raduazo, Henry E.
Locks
Special application
For closures
70379R, 70380, 292 8, E05B 6506
Patent
active
046837337
ABSTRACT:
A door locking mechanism enclosed within a casing for locking a door to its door frame. The door lock includes at least one bolt displaceable inside the casing through a bore in a side wall thereof, to engage a registering bore in the door frame. A base leg is fixed to the rear of the bolt, and includes a Y-shaped notch. A conventional keylock cylinder is fixed within the casing, and a key operated barrel is journalled within the cylinder and offset from the center of the latter and has a radially-outwardly-projecting lug. An annular member is rotatably mounted around the keylock cylinder between two opposite casing walls, and includes an inner projection and an outer operating arm which engages the Y-shaped notch of the base leg. Upon rotation of the barrel by the key, the barrel lug comes to abut against the inner projection of the annular member to thereafter bring the annular member in rotation therewith, so that the outer operating arm frictionally sweeps the Y-shaped notch to displace the base leg, and thus the bolt between door locking and unlocking positions. The bolt is locked by the operating arm in either position.
REFERENCES:
patent: 340620 (1886-04-01), Russell
patent: 2129967 (1938-09-01), Rubner
patent: 2379050 (1945-06-01), Voight
patent: 2842951 (1958-07-01), Duvall
patent: 3464242 (1969-09-01), Torii
patent: 4028917 (1977-06-01), Schlage
patent: 4261602 (1981-04-01), Anderson
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