Patents by Inventor Eric A. Skiff

Eric A. Skiff 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).

  • Process for sealing a cover over a vault
    Patent number: 5093055
    Abstract: A process and resulting structure providing a utility vault with a foam-filled tube sealing the space between the vault walls and the vault cover. Preferably the tube includes an inner tube that is sufficiently porous to permit gas to flow therethrough but only a small amount of uncured foam to flow therethrough, and a plastic outer tube that prevents the foam from bonding to the vault structure.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: March 3, 1992
    Inventor: Eric A. Skiff