Patents by Inventor Tage Skonvall

Tage Skonvall 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).

  • Concrete well
    Patent number: 5299637
    Abstract: A concrete well having an upper axial portion (10) decreasing in width axially from a larger bottom cross section to a smaller cross section at an upper opening of the well. The well includes an annular raiser (12) which is injection-molded of a plastic material and is located on the upper end surface (11) of the well surrounding said opening to extend the well axially upwards. The raiser has depressions (19) which extend in the peripheral direction of the raiser alternatingly on one side and the other of the raiser. The depressions are arranged in groups regularly spaced from each other by transverse solid portions (21) of the raiser. A well covering (13, 14) is supported on the raiser.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: April 5, 1994
    Inventor: Tage Skonvall
  • Power line pylon and lamp post
    Patent number: 5081804
    Abstract: A post construction kit for constructing a post implanted in a base terrain which includes a first post section adapted for implantation in the base terrain, at least one other post section adapted for interconnection with the post section to be implanted underground, and an interconnecting arrangement for interconnecting the underground section and at least one other post section.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: January 21, 1992
    Assignee: Gustavsberg VVS Aktiebolag
    Inventors: Erland Andersson, Tage Skonvall
  • Method of branching off a tube
    Patent number: 4903388
    Abstract: Method in branching off a tube (10) wherein an oval aperture (11) is made in the tube wall and a tube element (12) having a flange (13) at one end thereof, is inserted through the oval aperture from the outside of the tube. The flange is pressed against the inside surface of the tube by means of a ring (15) provided on the tube element, which is engaged with the outside surface of the tube and is fixedly secured to the tube element, a sealing ring being located between said flange on the tube element and the inside surface of the tube.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: February 27, 1990
    Inventor: Tage Skonvall
  • Post construction kit
    Patent number: 4899511
    Abstract: A post construction kit for constructing a post implanted in a base terrain which includes a first post section adapted for implantation in the base terrain, at least one other post section adapted for interconnection with the post section to be implanted underground, and an interconnecting arrangement for interconnecting the underground section and at least one other post section.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: February 13, 1990
    Assignee: Gustavsberg VVS Aktiebolag
    Inventors: Erland Andersson, Tage Skonvall