Patents by Inventor Rodney D. Lund

Rodney D. Lund 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).

  • Portable blower tube noise reduction
    Patent number: 6324720
    Abstract: The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the housing outlet and blower tube. The noise reduction is achieved by placing sound absorbing material in the blower tube. The sound absorbing material may include flared upstream and downstream ends to reduce turbulence. The sound absorbing material may be held within the blower tube by an insert frame such that substantial portions of the sound absorbing material are exposed to air passing through the blower tube. Also disclosed is a sound absorbing insert that can be placed within an existing blower tube to retrofit portable blowers with noise reduction technology.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: December 4, 2001
    Assignee: The Toro Company
    Inventors: Thomas J. Beckey, Rodney D. Lund, Steve R. Porter, Chadwick A. Shaffer, Steven J. Svoboda
  • Portable blower with blower tube noise reduction
    Patent number: 6158082
    Abstract: The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the housing outlet and blower tube. The noise reduction is achieved by placing sound absorbing material in the blower tube. The sound absorbing material may include flared upstream and downstream ends to reduce turbulence. The sound absorbing material may be held within the blower tube by an insert frame such that substantial portions of the sound absorbing material are exposed to air passing through the blower tube. Also disclosed is a sound absorbing insert that can be placed within an existing blower tube to retrofit portable blowers with noise reduction technology.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: December 12, 2000
    Assignee: The Toro Company
    Inventors: Thomas J. Beckey, Rodney D. Lund, Steve R. Porter, Chadwick A. Shaffer, Steven J. Svoboda
  • Portable blower with noise reduction
    Patent number: 5979013
    Abstract: The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the inlet of the blower housing. The noise reduction is achieved in one respect by placing sound absorbing material in a plenum attached to the inlet opening of the blower housing. Other features of the preferred plenum include louvered openings and angled engagement members to draw the plenum tightly against the blower housing.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: November 9, 1999
    Assignee: The Toro Company
    Inventors: Thomas J. Beckey, Steven R. Porter, Rodney D. Lund, Chadwick A. Shaffer, Steven J. Svoboda, Steven T. O'Brien