Patents by Inventor Stephen E. Immonen

Stephen E. Immonen 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).

  • Patent number: 5580106
    Abstract: A method, using pressure air, of delivering sand from a sand box in the trunk of a car to a traction site at the interface of a car drive wheel and an ice or snow covered road surface to achieve car movement therefrom, in which the pressure air, as admittedly also occurs in the prior art, delivers the sand from the sand box to the traction site, but also significantly supplements the gravity flow of the sand from the sand box so that the amount of delivered sand to the traction site is adequate for the purposes intended, thereby overcoming a significant shortcoming of pneumatic car traction devices.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: December 3, 1996
    Inventors: Joel H. Dulberg, Stephen E. Immonen