Insulating structure

Details Insulating structure Insulating structure

1982-03-19

1984-03-06

Downey, Kenneth

Movable or removable closures

Facially opposed primary and auxiliary closure for common...

Auxiliary mounted for movement

49372, E05B 6504

Patent

active

044345798

ABSTRACT:
Energy saving apparatus for use with a window, including a sheet of insulating material slidable in and out of a rigid envelope built into the wall.

REFERENCES:
patent: 1442397 (1923-01-01), Gorrani
patent: 1612249 (1926-12-01), Anderson
patent: 1636008 (1927-07-01), Miles
patent: 1983846 (1934-12-01), Fuller
patent: 2026886 (1936-01-01), Goeltz et al.
patent: 2925859 (1960-02-01), Baker, Jr.
patent: 4115953 (1978-09-01), Brosenius

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