Door lock apparatus

Details Door lock apparatus Door lock apparatus

1983-11-21

1986-12-02

Wolfe, Robert L.

Closure fasteners

Bolts

Sliding

74526, 292299, 2923363, 292356, 292DIG37, E05C 114

Patent

active

046260080

ABSTRACT:
A locking prevention apparatus for attachment to the locking shaft of a passage lock door knob assembly for an interior door consists of a split ring of substantially rigid material which engages circumferentially the external surface of the locking shaft between the interior door knob and the interior face plate of said door knob assembly to limit translational motion of the interior door knob along the locking shaft toward the interior face plate.

REFERENCES:
patent: 1048784 (1912-12-01), Ackerman
patent: 2786706 (1957-03-01), Wright
patent: 2831719 (1958-04-01), Hitzelberger
patent: 3535977 (1970-10-01), Baumgarten

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