Movable or removable closures – With means mounting closure for swinging – With latch or lock
Patent
1987-12-08
1989-09-12
Kannan, Philip C.
Movable or removable closures
With means mounting closure for swinging
With latch or lock
49110, E05C 1902
Patent
active
048647730
ABSTRACT:
The invention relates to a means for locking an awning/vent type window wherein pear-shaped apertures are provided on the window frame that cooperate with pin means projecting from the vent. As the vent is drawn into a closed position, the pin means enters an enlarged portion of the pear shaped aperture and subsequent relative movement between the pin means and the pear shaped aperture brings about engagement of the pin means with the smallest portion of the pear shaped apertures.
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