Patents by Inventor Leif A. Andersson

Leif A. Andersson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wall structure
    Patent number: 5606833
    Abstract: A wall structure for interior sound and thermal insulation of rooms. The wall structure comprises at least one insulating member (26a, 26b, 26c) and fastening profiles (10, 28) consisting of metal. These are intended partly for the mutual affixing of members laterally, partly for affixing of each member to floor and ceiling. Especially, each member comprises a soft insulating sheet and a thereto fastened, rigid support sheet. The fastening profiles intended for affixing of the member to floor and ceiling are of L-type and the fastening profiles (28) intended for mutual affixing of members are of T-type. One portion of each L-profile is intended for installation to floor and ceiling respectively and the other for installation in an area between the insulating sheet of the member and its support sheet.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: March 4, 1997
    Assignee: Isover Saint-Gobain
    Inventor: Leif A. Andersson