Patents by Inventor Derek Vernon Roe

Derek Vernon Roe 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).

  • Process for cold forming tube ends
    Publication number: 20020108426
    Abstract: A process for cold forming the ends of metal tubes to reinforce same includes a die cavity into which the tube is placed. The die cavity includes a section with a recess having a greater diameter than the tube. The tube is placed such that a portion is left outside of the cavity and a mandrel is inserted into the tube. The mandrel includes a section that is adapted to bear against the portion of the tube outside of the cavity and to deform same. The deformation process results in the tube being folded upon itself within the recess in the cavity thereby forming a reinforcing flange at the end of the tube. The process is conducted without heating the tube.
    Type: Application
    Filed: April 8, 2002
    Publication date: August 15, 2002
    Applicant: Copperweld Canada Inc.
    Inventors: Derek Vernon Roe, Ovidiu I. Savescu
  • Process for cold forming tube ends
    Patent number: 6408672
    Abstract: A process for cold forming the ends of metal tubes to reinforce same includes a die cavity into which the tube is placed. The die cavity includes a section with a recess having a greater diameter than the tube. The tube is placed such that a portion is left outside of the cavity and a mandrel is inserted into the tube. The mandrel includes a section that is adapted to bear against the portion of the tube outside of the cavity and to deform same. The deformation process results in the tube being folded upon itself within the recess in the cavity thereby forming a reinforcing flange at the end of the tube. The process is conducted without heating the tube.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 25, 2002
    Assignee: Copperweld Canada Inc.
    Inventors: Derek Vernon Roe, Ovidiu I. Savescu