Patents by Inventor Richard W. Wahlfeldt

Richard W. Wahlfeldt 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).

  • Anti-detonation powder safety device
    Patent number: 4342251
    Abstract: A anti-detonation safety device for use in a bulk handling system transporting explosive powder. The device comprises spaced inlet and outlet members and, disposed therebetween, a plurality of interconnected planar panels defining a cruciform chamber, the wings of which each include a top panel, operable in response to an increase of the pressure in the chamber, to provide for venting the same.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: August 3, 1982
    Assignee: Olin Corporation
    Inventors: Richard W. Wahlfeldt, David R. Field