Patents by Inventor Theodore R. D. Hayden

Theodore R. D. Hayden 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).

  • Current carrying inlet valve for central vacuum system
    Patent number: 4758170
    Abstract: The present invention discloses a current carrying inlet valve for central vacuum system providing tubular elements and connecting fittings with an integral electrical receptacle to permit operation of any electrically driven attachments and/or other cleaning devices, specific to the operation of a central vacuum cleaning system, without the necessity of an electrical outlet in close proximity, to which the location of an inlet valve was hereto restricted.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: July 19, 1988
    Inventor: Theodore R. D. Hayden