Security window shutter

Details Security window shutter Security window shutter

1990-01-05

1990-11-06

Kannan, Philip C.

Movable or removable closures

Closures interconnected for concurrent movement

Louver-type closures

49 56, 49 64, 49 75, E05F 1700

Patent

active

049675095

ABSTRACT:
A high security grating which resembles a conventional wooden window shutter. The shutter uses crossbars which extend across a door or window into a shutter frame. A tie rod extends through bores in the crossbar ends to tie the crossbars together and hold them in place. A metal frame covers the tie rods and shutter blades cover the crossbars. The shutter blades can be pivoted using an operator rod. The shutters are mounted inside a building using heavy duty hinges and deadbolts which allow them to be alternatively closed over a door or window or folded away to the side.

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patent: 4688351 (1987-08-01), Torres
patent: 4694608 (1987-09-01), Lambert
patent: 4724634 (1988-02-01), Blum

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