Marioff Corporation Oy

Kidde-Fenwal, Inc.

Harri Mattila

Arto Huotari

Jarmo Helasuo

Michael Kenneth Krager

Jarkko Malinen

Aino Oikari

Andre Jochim

Esko Lehto

Juhani Mattila

Sebastien Cailliau

Sami Syrjänen

A water seat is provided for use in a fire suppression sprinkler. The water seat is movable between an inactive position and an active position. The water seat includes a generally polygonal guiding surface in limited contact with the sprinkler. The water seat is slidable relative to the sprinkler when corrosion residue is present within the sprinkler. A sealing surface is positioned adjacent the polygonal guiding surface and forms a line contact seal at an interface with the sprinkler when the water seat is in an active position. The water seat also includes a guiding portion adjacent the sealing surface and opposite the polygonal guiding surface. The combination of the guiding surface and the guiding portion maintain a generally parallel orientation of the water seat relative to the sprinkler when the water seat moves from an inactive position to an active position.

Water mist fire suppression sprinkler

Growing community of inventors

Hyvinkää, Finland

Harri Mattila