Locking system

Details Locking system Locking system

1991-04-12

1993-03-30

Moore, Richard E.

Closure fasteners

Bolts

Multiple

292DIG21, E05C 904

Patent

active

051977710

ABSTRACT:
A window or a door comprises a stationary frame and two leaf frames. The leaf frames are mounted for pivoting movement about mutually parallel pivot axes. A first leaf frame is intended for more frequent opening and closing, and a second leaf frame is intended for less opening and closing. The second leaf frame can be locked with respect to the stationary frame by drive rods which move in opposite sense and which engage the stationary frame at the respective ends thereof. The first leaf frame is provided with the vertical height of the first leaf frame. This first drive rod is driven by a first drive mechanism. The first drive rod controls transverse bolts for engagement with the second leaf frame. The transverse bolts driven by the first drive rod are located outside the first drive mechanism.

REFERENCES:
patent: 1368141 (1921-02-01), Hagstrom
patent: 2708301 (1955-05-01), Wilkerson
patent: 2721092 (1955-10-01), Simmons
patent: 5058938 (1991-10-01), Doring et al.

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