Patents by Inventor Lennart Gustaf Berg

Lennart Gustaf Berg 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).

  • Valve for water pipes
    Patent number: 4064906
    Abstract: A valve for water pipes comprises a housing with an inlet opening and an outlet opening with a through-flow chamber arranged between both these openings, in which a spring loaded valve spindle provided with a sealing means is arranged to work in a direction to and from an engagement surface intended for the valve spindle sealing means in the chamber, for regulating the flow through the chamber in a direction from the one opening to the other.
    Type: Grant
    Filed: August 14, 1974
    Date of Patent: December 27, 1977
    Inventor: Lennart Gustaf Berg