Reflector for electromagnetic radiations and method of making same

Claim 1

IN A METHOD OF MAKING A RADAR REFLECTOR, THE STEPS OF ASSEMBLING IN THE ORDER NAMED A FLAT SHEET OF THIN METAL, A FLAT SHEET OF MESH FABRIC COATED WITH THERMOPLASTIC MATERIAL, A FLAT SHEET OF HONEYCOMB MATERIAL COMPRISING THIN METAL STRIPS DISPOSED PERPENDICULAR TO THE PLANE OF SAID SHEET AND BENT TO FORM HONEYCOMB-LIKE CELLS BETWEEN SUCCESSIVE STRIPS, SAID STRIPS BEING JOINED WITH ONE ANOTHER AT AREAS OF CONTACT, A SECOND FLAT SHEET OF MESH FABRIC COATED WITH THERMOPLASTIC MATERIAL AND A SECOND FLAT SHEET OF THIN METAL, SAID SHEETS BEING SUPERPOSED ON ONE ANOTHER WITH ADJACENT SHEETS IN CONTACT, POSITIONING SAID SHEETS BETWEEN MALE AND FEMALE DIES SHAPED TO FORM A REFLECTOR OF THE DESIRED SHAPE, HEATING SAID SUPERPOSED SHEETS AND SIMULATANEOUSLY PRESSING THEM BETWEEN SAID DIES TO PERFORM CONCURRENTLY THE STEPS OF BONDING SAID SHEETS TOGETHER, FORMING THE COMPOSITE SHEET MATERIAL TO THE DESIRED SHAPE, AND COMPRESSING AND PARTIALLY CRUSHING THE HONEYCOMB MATERIAL IN A CONTINUOUS MARGINAL PORTION SO THAT SAID METAL SHEETS COME SUBSTANTIALLY TOGETHER IN SAID MARGINAL PORTION, SAID THERMOPLASTIC MATERIAL BONDING SAID METAL SHEETS TOGETHER TO FORM A MARGINAL PERIPHERAL SEAL.