Patents by Inventor W. Theodore Dupler

W. Theodore Dupler 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).

  • Spark plug adapter
    Patent number: 5241930
    Abstract: A body, having a throughgoing bore formed therein has an intermediate land. A first portion of the bore is threaded to receive a spark plug therein, and an outer portion of the body is threaded to accommodate its insertion into a cylinder head. A channel, opening externally of the body, and onto said land, is provided for admitting fuel therethrough to a body-held spark plug.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: September 7, 1993
    Assignee: Dresser-Rand Company
    Inventor: W. Theodore Dupler