Patents by Inventor Juha Kristiad Tolvanen

Juha Kristiad Tolvanen 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: 6440199
    Abstract: The invention relates to an electric filter which includes emission and separation systems, which are intended for separating particles from a gaseous, particle-containing medium passing through the electric filter, and a filter chamber (1) which surrounds the emission and separation systems and their peripheral devices, the filter chamber (1) having a top surface (2), a base structure (3), and a wall structure (4) provided with thermal insulation and sheet metal cladding. The base structure (3) is made of concrete or the like and includes at least one trough or hopper bottomed tank (5) for the separated particales, wall structure (4) is made of steel and attached to the base structure (3) with a substantially rigid joint (5). The wall structure (4), except for the rigid joint (6), is provided to allow thermal expansion and contraction.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: August 27, 2002
    Assignee: Alstom (Switzerland) Ltd.
    Inventor: Juha Kristiad Tolvanen
  • Publication number: 20020017195
    Abstract: The invention relates to an electric filter which comprises emission and separation systems, which are intended for separating particles from a gaseous, particle-containing medium passing through the electric filter, and a filter chamber (1) which surrounds the emission and separation systems and their peripheral devices, the filter chamber (1) comprising a top structure (2), a base structure (3), and a wall structure (4) provided with thermal insulation and sheet metal cladding. The base structure (3) is made of concrete or the like and comprises at least one trough or hopper bottomed tank (5) for separated particles, the wall structure (4) is made of steel and attached to the base structure (3) with a substantially rigid joint (6). The wall structure (4), except for the rigid joint (6), is provided to allow thermal expansion and contraction.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 14, 2002
    Applicant: ABB FLAKT AB
    Inventor: Juha Kristiad Tolvanen