Movable or removable closures – With protective grille or safety guard – Adjustable to various size opening
Patent
1989-02-21
1990-02-13
Kannan, Philip C.
Movable or removable closures
With protective grille or safety guard
Adjustable to various size opening
49 57, 70461, E06B 368
Patent
active
048994901
ABSTRACT:
The invention relates to a barrier apparatus for a framed vertically adjustable rectangular window, the apparatus having an adjustable length for insertion into a window casement of the window. It is slideably positionable within the casement. The barrier apparatus includes a first and a second gridwork panel horizontally spaced on co plan juxtaposition; the panels are rigid rectangular frames adapted to border and support the panels, each frame having horizontally disposed upper and lower borders, and inner and outer vertically oriented side borders, the inner side borders facing each other, the facing side borders having vertically spaced guide holes. Also provided are first and second horizontally directed posts affixed between the upper and lower horizontal borders of each panel, such posts affixed to the facing inner side borders and adapted to slideably penetrate the guide holes, the horizontally directed posts having uniformly spaced pairs of notches.
REFERENCES:
patent: 1451172 (1923-04-01), Mayer
patent: 2508302 (1950-05-01), Stue
patent: 2775001 (1956-12-01), Baker
patent: 2819500 (1958-01-01), Saber
patent: 4170885 (1979-10-01), Lundgren
patent: 4394805 (1983-07-01), Napper
patent: 4437265 (1984-03-01), Turro et al.
patent: 4680890 (1987-07-01), Jokel
Kannan Philip C.
Silverman M. K.
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