Thermal break door

• US 3,335,524 A
• Filed: 10/21/1965
• Issued: 08/15/1967
• Est. Priority Date: 05/28/1965
• Status: Expired due to Term

• Current Assignee: Laurence F. Carson
• Original Assignee: Laurence F. Carson
• Inventors: Carson, Laurence F.
• Application Number:
  US04/499,489
• Time in Patent Office: 663 Days
• US Class Current: 49/501
• CPC Class Codes: E06B 3/26336 with two metal frame members having interpenetrating or overlapping parts when mounted involving sheet metal section members E06B3/2735
• CPC Class Codes: Y10S 49/01 Thermal breaks for frames

Claims

3. A MULTI-PART STRUCTURE COMPRISING A PAIR OF METALLIC MEMBERS DETACHABLY SECURED TOGETHER AND HAVING A GENERALLY U-SHAPED THERMAL BARRIER INCLUDING A WEB PORTION AND LEG PORTIONS EXTENDING THEREFROM DISPOSED BETWEEN SAID METALLIC MEMBERS THERMALLY TO ISOLATE ONE FROM THE OTHER, EACH OF SAID MEMBERS HAVING A WEB AND A PAIR OF FLANGES DISPOSED SUBSTANTIALLY NORMAL THERETO IN SPACED RELATIONSHIP, THE FLANGES ON ONE MEMBER OVERLAPPING RESPECTIVE ONES OF THE FLANGES ON THE OTHER MEMBER, MEANS TO SECURE ONE MEMBER TO THE OTHER COMPRISING FASTENER MEANS EXTENDING BETWEEN AND SECURED TO ASSOCIATED ONES OF SAID OVERLAPPING FLANGES, AND AN ADDITIONAL FLANGE EXTENDING BETWEEN AND INTERCONNECTING THE OUTER ENDS OF THE FLANGES OF SAID OTHER MEMBER THEREBY TO DEFINE AN ENCLOSED CHAMBER, ASSOCIATED ONES OF SAID OVERLAPPING FLANGES ON THE RESPECTIVE MEMBERS BEING DISPOSED IN