Patents Assigned to Suomen Putkisaneeraus Oy
  • Method for repairing flow conduits, and repair material
    Patent number: 5535786
    Abstract: A method for repairing flow conduits, such as pipe lines, wherein the inner surface of a conduit is provided with a flexible material, including a curing agent as well as a reinforcement layer, and the curing agent is hardened, the reinforcement layer comprising a knitted fabric, wherein the knitted fabric comprises reinforcement filaments which are separate from a fabric-forming yarn and extend inside the knitted fabric substantially in a single direction.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: July 16, 1996
    Assignee: Suomen Putkisaneeraus Oy
    Inventors: Seppo Makela, Seppo Jarvinen, Mikko Karttunen, Esa Suokas