×

Pre-cast sealant dome and method

  • US 4,826,380 A
  • Filed: 01/19/1988
  • Issued: 05/02/1989
  • Est. Priority Date: 01/19/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. A protective and insulating seal for a fastener, the seal comprising:

  • a continuous and uninterrupted shell having a base portion surrounding an opening into a central cavity and a portion of reduced wall thickness;

    the central cavity containing a polymeric sealant which adheres the shell over the fastener; and

    whereinthe portion of reduced wall thickness is integral with the shell and is extensible from a first position to a second position, whereby the volume of the cavity changes from a first volume to a second volume.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×