Dead bolt sensing and strike closing mechanism

Details Dead bolt sensing and strike closing mechanism Dead bolt sensing and strike closing mechanism

1984-02-27

1986-06-17

Wolfe, Robert L.

Closure fasteners

Keepers

With movable dog, catch or striker

29234116, E05B 1502

Patent

active

045952205

ABSTRACT:
A door lock (10) includes a strike case (18) adapted to receive a dead bolt (14). A rotatable keeper (20) is rotatable between an open and closed position for opening and closing the strike case (18). An abutment member (30) is connected to the rotatable keeper (20) and is selectively rotatable with the rotatable keeper (20). A sensing arm (34) is connected to the strike case (18) for sensing the presence of the dead bolt (14) in the strike case (18). The sensing arm (34) selectively disengages the abutment member (30) for allowing the abutment member (30) to rotate with the rotatable keeper (20) if the dead bolt (14) is detected within the strike case (18).

REFERENCES:
patent: 277628 (1883-05-01), Sullivan
patent: 352154 (1886-11-01), Rousseau
patent: 3211850 (1965-10-01), Toepfer
patent: 3638984 (1972-02-01), Davidson
patent: 3640560 (1972-02-01), Zawadski et al.
patent: 3796452 (1974-03-01), Foster et al.
patent: 3861727 (1975-01-01), Froerup et al.
patent: 3910617 (1975-10-01), Scalza et al.
patent: 4017107 (1977-04-01), Hanchett
patent: 4026589 (1977-05-01), Hanchett, Jr.
patent: 4083590 (1978-04-01), Folger

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