Automatic expander window

Details Automatic expander window Automatic expander window

1988-05-31

1989-07-25

Kannan, Philip C.

Movable or removable closures

Movable closure and its support transferable as unit

49505, 52217, E06B 332, E06B 104

Patent

active

048501417

ABSTRACT:
An automatic expander replacement window has a frame including left and right side member assemblies, a head member assembly and a sill member, each assembly including a frame element, an expansion element associated therewith and movable between a retracted position and an expanded position, a biasing element between and engaging the expansion element and its associated frame element and is of maximum bias where the expansion element is in its retracted position. A releasable strap holes the expansion element in the retracted position until the strap is cut, whereupon the biasing element drives the expansion element to its expanded position.

REFERENCES:
patent: 3583114 (1971-06-01), Belfor
patent: 4691477 (1987-09-01), Governale
patent: 4702051 (1987-10-01), Miller
patent: 4742647 (1988-05-01), Pacca

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