Patents by Inventor Donald E. Freber

Donald E. Freber 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).

  • Two-section burner
    Patent number: 5249958
    Abstract: The burner construction having a bottom pan and a cover is divided into two sections which are independently active when a gas fuel is supplied by independent venturi tubes. The tubes and bottom pans are formed with cam-locking elements which require a twisting motion in the receiving apertures in which the twisting of the tubes engages the cam-locking elements which pulls a shoulder on the tubes into a tight sealing contact against the pan thereby avoiding the need for tools or the use of gasket materials to form the seal.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: October 5, 1993
    Assignee: Marquette Tool & Die Company
    Inventor: Donald E. Freber