Patents by Inventor Paul E. Crist

Paul E. Crist 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 and apparatus for forming flared tube ends
    Patent number: 8815139
    Abstract: A method for forming a flare in the end of a flexible tube comprises heating the end of the flexible tube to a near-melted state, inserting the end of the flexible tube into a flare-forming die with a flare forming portion, and pressing a mandrel into the end of the flexible tube, thereby pressure forming a flare in the end of the flexible tube.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 26, 2014
    Assignee: Fitline, Inc.
    Inventors: Frank F. Hayes, Jr., Paul E. Crist
  • METHOD AND APPARATUS FOR FORMING FLARED TUBE ENDS
    Publication number: 20100084039
    Abstract: A method for forming a flare in the end of a flexible tube comprises heating the end of the flexible tube to a near-melted state, inserting the end of the flexible tube into a flare-forming die with a flare forming portion, and pressing a mandrel into the end of the flexible tube, thereby pressure forming a flare in the end of the flexible tube.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 8, 2010
    Inventors: Frank F. Hayes,, JR., Paul E. Crist
  • Method and apparatus for forming flared tube ends
    Patent number: 7604472
    Abstract: A method for forming a flare in the end of a flexible tube comprises heating the end of the flexible tube to a near-melted state, inserting the end of the flexible tube into a flare-forming die with a flare forming portion, and pressing a mandrel into the end of the flexible tube, thereby pressure forming a flare in the end of the flexible tube.
    Type: Grant
    Filed: July 12, 2003
    Date of Patent: October 20, 2009
    Inventors: Frank F. Hayes, Jr., Paul E. Crist