Window guard locking device

Details Window guard locking device Window guard locking device

1994-06-24

1996-12-17

Boucher, Darnell M.

Closure fasteners

Bolts

Sliding and rotary

49 56, 49141, 292 66, 292 68, 292217, 292DIG33, 292DIG55, 292DIG53, 292DIG20, E05C 502

Patent

active

055845142

ABSTRACT:
A window guard locking device (34) comprises a flange member (36) having a keyhole (42) therethrough, a member (40) having a central cavity (50), an intermediate member (38) having an opening (46) disposed between the flange member (36) and the member (40) with the axis of the keyhole, the opening and the central cavity being coincident, and at least one projection (48) extending inwardly from a wall of the opening (46) adjacent the keyhole (42) with a surface of the projection (48) being aligned with a respective wall of the keyhole (42).

REFERENCES:
patent: 377648 (1888-02-01), Sinning
patent: 452776 (1891-05-01), Doty
patent: 777456 (1904-12-01), Wands
patent: 1193148 (1916-08-01), Hornung
patent: 1718995 (1929-07-01), Barnard
patent: 2839808 (1958-06-01), Zahodiakin
patent: 2922211 (1960-01-01), Boyd
patent: 3169293 (1965-02-01), Neuschotz
patent: 3460210 (1969-08-01), Ellis
patent: 4127293 (1978-11-01), Moreno
patent: 4351170 (1982-09-01), Clompus
patent: 4634157 (1987-01-01), Fernandez
patent: 4702505 (1987-10-01), Alexander

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