Patents by Inventor Bror H. Hanson

Bror H. Hanson 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).

  • Mold-release coating systems
    Patent number: 7192620
    Abstract: A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10 weight percent solids. The wax material is permitted to substantially dry after deposition onto the mold surface. The mold-release coating system also includes a release powder deposited onto the barrier coating after the wax material has been permitted to substantially dry after deposition onto the mold surface.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: March 20, 2007
    Assignee: Polymerit
    Inventor: Bror H. Hanson
  • Method for forming a mold-release coating
    Patent number: 6291026
    Abstract: A method for forming a mold-release coating on a mold surface includes providing a coating of material on the mold surface. The coating of material has a surface which is capable of accepting and retaining a release powder. The method also includes depositing the release powder onto the coating of material. The release powder embeds the coating of material upon deposition thereby forming a mold-release coating.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: September 18, 2001
    Assignee: Polymerit
    Inventors: Bror H. Hanson, Douglas L. Hunter
  • Method for forming a mold-release coating
    Patent number: 6117495
    Abstract: The method for forming a mold-release coating on a mold surface includes two basic steps: (a) providing a base coat of material on the mold surface and (b) electrostatically depositing a release powder onto the base coat of material. The base coat of material has a surface which is capable of accepting and retaining the release powder. Upon deposition of the release powder, the release powder embeds the base coat of material thereby forming a mold-release coating. The base coat may be a wax or a solvent base wax.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: September 12, 2000
    Assignee: Polymerit
    Inventors: Bror H. Hanson, Douglas L. Hunter
  • Tower and method of construction
    Patent number: 4272929
    Abstract: A tower for a wind generator made up of a plurality of segments where each segment fits into the one below it and is adjustable relative that lower segment. The lower segment is anchored in the ground and includes a stirrup which holds the lowest section of the tower a distance above the bottom of the hole so that when cement is poured into the hole to anchor the tower, the cement flows up into the interior of the tower to give additional support. Adjustment means in the form of set screws are provided where each pair of sections join to allow alignment of the sections to vertical.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: June 16, 1981
    Inventor: Bror H. Hanson