Patents by Inventor Piia Keitaanniemi

Piia Keitaanniemi 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).

  • ARRANGEMENT AND METHOD FOR CLEANING A FILTER APPARATUS OF A PRODUCT GAS LINE OF A PLANT PRODUCING PRODUCT GAS
    Publication number: 20160001210
    Abstract: An arrangement and method for cleaning a filter apparatus (3) arranged to a product gas line (2) of a product gas producing plant (1). In the method a filter (5) of the filter apparatus (3) is separated from the product gas line (2) with closing means (4), oxygen-containing control gas (CG) is fed into the filter (5) separated from the product gas line (2), the control gas (CG) forming at least part of the regeneration gas (RG) cleaning the filter (5), and the regeneration gas (RG) that has passed through the filter (5) is removed from the filter (5).
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Inventors: Juhani Isaksson, Piia Keitaanniemi, Vesa Helanti