Insulated window assembly with internal muntin bars
AssigneeRolscreen Company
InventorsJames J. Kinghorn, Mark J. Hunke
Life of this patent
Estimating the term…
Abstract
The internal muntin bars of an insulated window assembly include spaced apart component bars. Each component bar extends between opposite sides of the perimeter bar and has cooperating notches for engagement with the adjacent component bar which crosses it. A telescoping fastener with disc-like heads is received in a center opening at the intersection of crossing muntin bars and serves to lock the bars together and fill the space between the glass panes. The legs of a U-shaped retainer are received in the open ends of the component bars and are secured to the perimeter bar.
Claims17
An insulated window assembly comprising,
- first and second spaced apart panes of transparent sheet material;
- a perimeter bar positioned between said panes and extending around the perimeter of said panes and defining two pairs of opposite sides of said window assembly;
- an internal muntin bar grid including intersecting bars having opposite ends engaging said perimeter bar;
- and
- said intersecting bars each include first and second component bars spaced apart in parallel relationship.
Dependencies are inferred from the claim text.