Patents Assigned to J. P. Sheahan Assoicates, Inc.
  • Method of securing multiple layered roof structures
    Patent number: 4924174
    Abstract: A hold down device for multi-layered roofs. The hold down device can be modified to afford a water leak detector. A method of using the devices in securing a multi-layered roof is also disclosed.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: May 8, 1990
    Assignee: J. P. Sheahan Assoicates, Inc.
    Inventor: James P. Sheahan