Patents by Inventor Bengt G. A. E. Kullberg

Bengt G. A. E. Kullberg 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).

  • Apparatus for the prevention or limitation of water damage
    Patent number: 4136823
    Abstract: The invention relates to an apparatus for preventing or limiting water damage caused by leakage from pipes or appliances in which a sensing element in the form of a pair of conductors having current applied thereto is positioned in an area to sense accumulation of water from leakage. The sensing element is connected to a resettable relay to operate the same when current flows between conductors of the sensing element. The relay is bi-stable and resettable and operates to disconnect the sensing element after initial conduction and to further apply heat through the heating element to a thermostatic valve to operate the thermostatic valve in a direction to close off water flow to piping or apparatus in which leakage occurs.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: January 30, 1979
    Inventor: Bengt G. A. E. Kullberg
  • Apparatus for the prevention or limitation of water damage
    Patent number: RE30493
    Abstract: The invention relates to an apparatus for preventing or limiting water damage caused by leakage from pipes or appliances in which a sensing element in the form of a pair of conductors having current applied thereto is positioned in an area to sense accumulation of water from leakage. The sensing element is connected to a resettable relay to operate the same when current flows between conductors of the sensing element. The relay is bi-stable and resettable and operates to disconnect the sensing element after initial conduction and to further apply heat through the heating element to a thermostatic valve to operate the thermostatic valve in a direction to close off water flow to piping or apparatus in which leakage occurs.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: January 27, 1981
    Inventor: Bengt G. A. E. Kullberg