Patents by Inventor Willy Furasen

Willy Furasen 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).

  • Device for cleaning workshop air
    Patent number: 4129426
    Abstract: A device for cleaning the air in welding shops includes a casing surrounding a fan and an electric motor, a mechanical filter upstream of the fan and a filter including active carbon down-stream of the motor. In order to maintain a suitable temperature for the active carbon the air is brought to pass through, or around the motor. A thermal relay is provided to interrupt the current supply to the motor, should the temperature, due to clogging of the mechanical filter and resulting increase of the motor output, be raise to an impermissible level.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: December 12, 1978
    Assignee: Flex Ake Wennberg AB
    Inventor: Willy Furasen