Insulating unitless window sash

Details Insulating unitless window sash Insulating unitless window sash

2005-05-03

2005-05-03

Safavi, Michael (Department: 3673)

Static structures (e.g., buildings)

Transparent panel having active treatment with gas or liquid

Hygroscopic material; e.g., internal drier

C052S204620, C052S204700, C052S786100

Reexamination Certificate

active

06886297

ABSTRACT:
An insulating unitless window sash includes a sash frame made of four linear sash members having their mitered edges joined together. Each of the sash members in cross section includes a peripheral surface, a first and outer side walls and a first groove spaced from a second groove. Each of the grooves has a base and spaced walls. The base of the first groove is spaced a greater distance from the peripheral surface than the base of the second groove. Peripheral and marginal edges of a first sheet are in the first groove and peripheral and marginal edges of a second sheet are in the second groove. A shim is mounted on the sash frame adjacent the outer surface of the first sheet to give a balance configuration.

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