Closure fasteners – Latch-spindle catches
Patent
1997-10-07
1999-06-08
Boucher, Darnell M.
Closure fasteners
Latch-spindle catches
29216915, E05B 5504
Patent
active
059099194
ABSTRACT:
An auxiliary lock assembly includes a casing securely attached to the inner side of the door plate and including a first hole, a mount plate securely attached to the casing and including a second hole in alignment with the first hole, and a latch plate mounted on the mount plate and movable in a direction toward and away from the second hole. The latch plate has a first end extending beyond the casing and a second end inside the casing. An engaging wheel is rotatably received in the second hole of the mount plate and releasably engages with the second end of the latch plate. An actuating wheel is rotatably received in the first hole of the casing and is rotatable to a position to engage with the engaging wheel to rotate therewith. A switch button is mounted outside the casing and securely attached to the actuating wheel to rotate therewith. When the auxiliary lock assembly is in a lock position, unlocking from an outside of the door plate is prevented when the second end of the latch plate is engaged with the engaging wheel.
REFERENCES:
patent: 365775 (1887-07-01), Bennett
patent: 1760394 (1930-05-01), Best
patent: 2505188 (1950-04-01), Kaiser
patent: 2636376 (1953-04-01), McConnell
patent: 2989332 (1961-06-01), Gilbert
patent: 3954292 (1976-05-01), Johnson
patent: 4055361 (1977-10-01), Moses
patent: 4142748 (1979-03-01), Hook
patent: 5364139 (1994-11-01), Bergen
Boucher Darnell M.
Estremsky Gary
Taiwan Fu Hsing Industry Co. Ltd.
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