Insulating insert for concrete blocks

Abstract

An insulating insert is disclosed, that fits into the cores of concrete building blocks. The insert is collapsible widthwise, near its ends, and lengthwise to fit both standard and odd-dimensioned cores. In the preferred embodiment, the invention basically comprises: a generally rectangular body with flat top, bottom, front and rear panels; two segmented endwalls; and opposing slots (T-shaped in cross section) that start at the endwalls and extend from the insert's top to bottom. The horizontal portion of each T-slot permits the insert's end portions to be collapsible widthwise to easily accommodate different-shaped cores, even sash blocks; and each vertical portion permits the overall length of the insert to be reduced to fit smaller cores.

Dependencies are inferred from the claim text.