Patents by Inventor Edgar Roberts

Edgar Roberts 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).

  • System for electrical grounding
    Patent number: 4885428
    Abstract: A system for electrical grounding consisting of a series of grounding receptacles which include electrically insulative housings and grounding terminals which are interconnected by a common ground wire. The ground wire is also insulated from the surrounding environment and is electrically connected to a ground rod. The ground rod acts as a single grounding point which is shared by each electrical device which is connected to each grounding terminal.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: December 5, 1989
    Assignee: A-1 Construction Company
    Inventor: Edgar Roberts