Attic ventilating system with cover means

Claim 1

A VENTILATING SYSTEM FOR THE CONTINUOUS CIRCULATION OF AIR THROUGH ATTIC SPACE OF A BUILDING DURING THE SUMMER MONTHS AND FOR SEALING THE ATTIC SPACE DURING THE WINTER, THE BUILDING INCLUDING VERTICAL SIDE WALLS AND A ROOF SUPPORTED ON SAID OVERHANGING THE SIDE WALLS ON AT LEAST TWO OPPOSITE SIDES OF THE BUILDING TO PROVIDE A GENERALLY HORIZONTAL SURFACE BETWEEN THE EDGE OF THE ROOF AND THE ADJACENT SIDE WALLS, SAID SYSTEM COMPRISING MEANS DEFINING A PLURALITY OF OPENINGS IN SAID HORIZONTAL SURFACES CONNECTED TO THE ATTIC SPACE FOR AIR FLOW BETWEEN THE EXTERIOR OF THE BUILDING AND THE ATTIC SPACE, A PROTECTIVE SCREEN MEMBER SECURED OVER EACH OF SAID OPENINGS, SAID SCREEN MEMBER INCLUDING A RECTANGULAR SHEET METAL FRAME HAVING A PLURALITY OF PARALLEL LOUVERS CUT THEREIN AND HAVING EDGES WHICH EXTEND DOWNWARDLY THEREFROM FOR FREE FLOW OF AIR BETWEEN SAID LOUVERS, SAID SCREEN MEMBERS HAVING AN OUTER CONFIGURATION SIMILAR TO BUT LARGER THAN EACH OF SAID OPENINGS, MEANS FRO SECURING ONE OF SAID FRAMES TO SAID HORIZONTAL SURFACE TO COVER EACH OF SAID OPENINGS, A FINE MESH SCREEN ON SAID FRAME BETWEEN SAID LOUVERS AND SAID OPENING TO BLOCK THE PASSAGE OF INSECTS AND FOREIGN OBJECTS INTO THE ATTIC SPACE, SAID FRAME HAVING ITS PERIPHERAL EDGES BENT OVER TO CLAMP THE SCREEN IN PLACE, A RECTANGULAR COVER FOR EACH SAID FRAME CORRESPONDING IN SIZE TO SAID FRAME AND HAVING A FLAT CENTRAL SURFACE WITH SIDE WALLS WHICH EXTEND PERPENDICULARLY THEREFROM AROUND THE ENTIRE PERIPHERY OF SAID CENTRAL SURFACE A DISTANCE EQUAL TO THE THICKNESS OF SAID FRAME MEMBER, A PAIR OF INWARDLY EXTENDING PROJECTIONS ON THE EDGE OF ONE SAID SIDE WALLS FOR INSERTION BETWEEN SAID BENT OVER EDGES OF SAID FRAME AND THE ADJACENT HORIZONTAL SURFACE, AND A RESILIENT CLAMP ON THE EDGE OF ANOTHER OF SAID SIDE WALLS OPPOSITE SAID ON SIDE WALL ADAPTED TO GRASP THE ADJACENT EDGE OF SAID FRAME TO HOLD SAID COVERS ON SAID FRAMES TO SEAL SAID OPENINGS AND REDUCE THE FLOW OF HEAT OUTWARDLY FROM SAID ATTIC SPACE.