Patents by Inventor Veijo Olavi Pitkanen

Veijo Olavi Pitkanen 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).

  • Method of casting, the form used thereby and element produced therefrom
    Patent number: 6986856
    Abstract: The object of this invention is the method of manufacture of a symmetric element of a round ring and cone-shaped ring applicable in serial production. The application area of the invention is particularly the prefabrication of ceramic coating elements, which match together and which are assembled in straight walls, a surface coating containing cylinder rings and cone-shaped rings. Good application objects are for example the cyclones and the ducts of circulating bed boilers, carburetor plants, etc. various combustion chambers and high temperature devices. The concerned elements have special conditions concerning their tightness, so that their seam surfaces must be shaped so that they are profile surfaces differing from plane surfaces, profile surfaces having the capacity to resist to leakage through seam better than straight surfaces.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: January 17, 2006
    Assignee: Suomen Muuraustyo SMT Oy
    Inventor: Veijo Olavi Pitkanen
  • Method of casting, the form used thereby and element produced therefrom
    Publication number: 20030137081
    Abstract: The object of this invention is the method of manufacture of a symmetric element of a round ring and cone-shaped ring applicable in serial production. The application area of the invention is particularly the prefabrication of ceramic coating elements, which match together and which are assembled in straight walls, a surface coating containing cylinder rings and cone-shaped rings. Good application objects are for example the cyclones and the ducts of circulating bed boilers, carburetor plants, etc. various combustion chambers and high temperature devices. The concerned elements have special conditions concerning their tightness, so that their seam surfaces must be shaped so that they are profile surfaces differing from plane surfaces, profile surfaces having the capacity to resist to leakage through seam better than straight surfaces.
    Type: Application
    Filed: October 15, 2002
    Publication date: July 24, 2003
    Inventor: Veijo Olavi Pitkanen