Prefabricated thermal insulation panel

Claim 1

INSULATING CONSTRUCTION FOR HIGH TEMPERATURE HEATING DUCTS AND SIMILAR STRUCTURES COMPRISING A PLURALITY OF VERTICALLY SPACED APART HORIZONTALLY EXTENDING SUBSTANTIALLY PARALLEL ELONGATED BARS INTERMITTENTLY SECURED TO THE STRUCTURE IN SPACED RELATION WITH RESPECT THERETO, A PLURALITY OF ELONGATED PREINSULATED PANELS POSITIONED ADJACENT THE BARS AND EXTENDING TRANSVERSELY THEREOF, CLIPS COMPRISING SUBSTANTIALLY FLAT VERTICALLY POSITIONED RECTANGULAR MEMBERS EXTENDING PERPENDICULARLY OUTWARDLY FROM SAID STRUCTURE HAVING A BIFURCATED END ADJACENT SAID STRUCTURE WITH VERTICALLY SPACED APART PORTIONS TERMINATING IN CLYINDRICAL PARTS EXTENDING ON BOTH SIDES OF A BAR, LINEAR HOLDING MEANS EXTENDING THROUGH THE VERTICALLY ALIGNED CYLINDRICAL PARTS OF THE BIFURCATED END OF THE CLIPS AND BETWEEN THE BAR AND STRUCTURE FOR LOOSELY CONNECTING THE CLIPS TO THE BARS, MEANS AT THE OTHER END OF SAID CLIPS FOR RIGIDLY SECURING THE PANELS TO THE CLIPS, SAID PANELS BEING PROVIDED WITH LONGITUDINALLY EXTENDING OPEN RETURNED RIBS TO PERMIT LATERAL EXPANSION AND CONTRACTION OF THE PANELS WITH LONGITUDINAL EXPANSION AND CONTRACTION OF THE BARS AND MEANS FOR ANCHORING THE CLIPS TO THE BARS AGAINST MOVEMENT LONGITUDINALLY OF THE BARS.