Ventilation grating for use in window frames together with seale

Details Ventilation grating for use in window frames together with seale Ventilation grating for use in window frames together with seale

1983-11-23

1985-04-23

Joyce, Harold

49 38, F24F 1318

Patent

active

045122440

ABSTRACT:
A closable ventilation grating of the type having two grids, one being slidable along the other, which is adapted for use with sealed unit insulating glass is disclosed. The grating comprises a lower, hollow member which has parallel pending flanges for mounting the grating on sealed unit insulating glass. The grating also comprises grids which are easily adaptable to a desired length as they are comprised of a number of similar, standardized sections and a standardized operating section where required.

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