Patents by Inventor Matti Perttula

Matti Perttula 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).

  • Patent number: 8806827
    Abstract: A shaped roof element (1) for roofs made of elements, the roof element (1) comprising a first and a second side edge (4, 6), an upper edge (8) and a lower edge (10), a profile substantially parallel to the side edges (4, 6) and a series of steps comprising two or more steps (12, 14) extending substantially parallel to the upper and lower edges (8, 10), the steps being produced so that the lower edge (10) forms one of the steps (14). The step (14) on the lower edge (10) is produced in the form of a round bend (20) bending underneath the shaped roof element (1), the profile of the bend corresponding substantially to a profile parallel to the side edges (4, 6) of the shaped roof element (1).
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: August 19, 2014
    Assignee: Rautaruukki Oyj
    Inventors: Matti Perttula, Janne Tanhuanpää
  • Publication number: 20110154767
    Abstract: A shaped roof element (1) for roofs made of elements, the roof element (1) comprising a first and a second side edge (4, 6), an upper edge (8) and a lower edge (10), a profile substantially parallel to the side edges (4, 6) and a series of steps comprising two or more steps (12, 14) extending substantially parallel to the upper and lower edges (8, 10), the steps being produced so that the lower edge (10) forms one of the steps (14). The step (14) on the lower edge (10) is produced in the form of a round bend (20) bending underneath the shaped roof element (1), the profile of the bend corresponding substantially to a profile parallel to the side edges (4, 6) of the shaped roof element (1).
    Type: Application
    Filed: October 30, 2008
    Publication date: June 30, 2011
    Inventors: Matti Perttula, Janne Tanhuanpää