Patents by Inventor Willy B. L. Arvidsson

Willy B. L. Arvidsson 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).

  • Sealing device in a rotary regenerative type heat exchanger
    Patent number: 4335784
    Abstract: The present invention relates to a sealing device for minimizing leakage losses in a rotary regenerative type heat exchanger, and more particularly in a heat exchanger comprising a cylindrical matrix of heat absorbent material rotatably mounted in a stationary housing.To prevent a loss of efficiency of the heat exchanger, which occurs when an uncontrolled flow between the inlets and the outlets of the exchanger takes place, an axially extending annular groove (3) having bottom and side walls is formed in each of the two end surfaces (2) of the matrix (1). In each of these annular grooves (3) a stationary sealing sleeve (5) projects into each of said grooves.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: June 22, 1982
    Inventors: Willy B. L. Arvidsson, Anders S. G. Lindgren