Closure fasteners – Bolts – Swinging and camming
Patent
1990-11-15
1992-01-14
Smith, Gary L.
Closure fasteners
Bolts
Swinging and camming
16114R, 292DIG27, 292DIG33, 292348, E05C 314
Patent
active
050804073
ABSTRACT:
A casement window locking system includes a rotatable locking cam mounted in the frame jamb with a window catch access opening on one side and a locking lever access opening on the opposite side. The locking lever has a U-shaped inner end which embraces the locking cam when the two members are engaged and a tab on the locking cam engages a shoulder on the locking lever to prevent withdrawal of the locking lever until a tool is used to raise the locking cam when the tool is inserted through the catch opening. In an alternative embodiment, a spring clip may be placed on top of the locking cam and it includes a shoulder for engaging the shoulder on the locking lever. The removable locking lever makes it possible to install and finish the window without the locking lever and change locking levers to color coordinate with the room interior.
REFERENCES:
patent: 814364 (1907-01-01), Wickwar
patent: 2784995 (1957-03-01), Hawkins
patent: 3039837 (1962-06-01), Poe
patent: 4059298 (1977-11-01), Van Klompenburg
patent: 4429910 (1984-02-01), Anderson
patent: 4610472 (1986-09-01), Billingsley
patent: 4621847 (1986-11-01), Paulson et al.
patent: 4674777 (1987-06-01), Guelck
patent: 4807914 (1989-02-01), Fleming et al.
Boucher Darnell M.
Rolscreen Company
Smith Gary L.
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