Patents Assigned to Ralph D. Harris
  • Patent number: 4040224
    Abstract: An insulation retaining device for supporting insulation material against the underside of a roofing panel interconnected with an adjacent roofing panel comprises a tongue portion for insertion between a joint of the interconnecting panels and a lip portion connected to the tongue for supporting insulation material placed against the underside of a panel.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: August 9, 1977
    Assignee: Ralph D. Harris
    Inventor: Frank D. Harris