Patents by Inventor Rolf Ivar Dalby

Rolf Ivar Dalby 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 for Renewal or Rehabilitation of Water Supply Pipelines and Plug Arrangement for use in Said Method
    Publication number: 20130156506
    Abstract: Method for renewal or rehabilitation of water supply pipelines without the need for excavation of the pipes or associated side inlets, manholes, etc., wherein plug arrangements are installed in side inlets, a flexible hose applied with adhesive is threaded into the water supply pipeline, and certain pressure is maintained for a predetermined period of time in order to get the adhesive material hardened and the hose glued to the inner pipe wall, and wherein the mounted plug arrangements are removed. A special plug arrangement for use in said method is also provided.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: OLINER SYSTEM LLC
    Inventor: Rolf Ivar Dalby