Closure fasteners – Keepers – With movable dog – catch or striker
Patent
1991-01-31
1992-03-31
Nicholson, Eric K.
Closure fasteners
Keepers
With movable dog, catch or striker
292144, 292 65, E05B 1502, E05B 4704, E05B 4706
Patent
active
051001861
ABSTRACT:
A locking device for locking a pin or bolt (3) in a striking plate is provided with a lock mechanism which substantially comprises a guide member (200) along which a locking slide (400) is movable. The striking plate is mounted in the rebate of a door frame (7). The guide member (200) guides the axial movement of the locking slide (400) along the striking plate.
When the door leaf (4) is being closed, the bolt (3) is inserted into the opening of the striking plate and at the same time into the corresponding recess (201) in the guide member (200). When the bolt (3) is positioned in the guide member (200), the locking slide (400) is moved to a locking position in which the locking slide encloses the bolt and prevents it from being withdrawn from the recess. The locking slide (400) is moved by an electrically operated driving means (500, 501).
REFERENCES:
patent: 471429 (1892-03-01), Pollard
patent: 813119 (1906-02-01), Smith
patent: 1244910 (1917-10-01), Smith
patent: 1532322 (1925-04-01), Lane
patent: 2785916 (1957-03-01), Mutti
patent: 3731963 (1973-05-01), Pond
patent: 4017107 (1977-04-01), Hanchett
patent: 4302039 (1981-11-01), Dukel et al.
Boucher Darnell M.
Nicholson Eric K.
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