Patents by Inventor Jon Bonner Kahn

Jon Bonner Kahn 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).

  • Gate valve having low-friction coating over substrate and method for making same
    Patent number: 9206910
    Abstract: A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat fabricated from a ceramic and/or hardfacing alloy matrix composite substrate is mounted to the body at the intersection of the flow passage and the cavity. A gate fabricated from a ceramic and/or hardfacing alloy matrix composite substrate is installed at the cavity and has an engaging face that slidingly engages the seat while the gate is being moved between open and closed positions. The engaging faces of the gate and seats are coated with a low-friction material to facilitate sliding. The ceramic and/or hardfacing alloy matrix composite substrate construction of the gate and seats with low friction engaging surfaces enhances the gate valve's bearing stress capacity.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 8, 2015
    Assignee: Vetco Gray Inc.
    Inventors: Jon Bonner Kahn, Fei Tang
  • Gate Valve Having Low-Friction Coating Over Substrate and Method for Making Same
    Publication number: 20120261603
    Abstract: A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat fabricated from a ceramic and/or hardfacing alloy matrix composite substrate is mounted to the body at the intersection of the flow passage and the cavity. A gate fabricated from a ceramic and/or hardfacing alloy matrix composite substrate is installed at the cavity and has an engaging face that slidingly engages the seat while the gate is being moved between open and closed positions. The engaging faces of the gate and seats are coated with a low-friction material to facilitate sliding. The ceramic and/or hardfacing alloy matrix composite substrate construction of the gate and seats with low friction engaging surfaces enhances the gate valve's bearing stress capacity.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 18, 2012
    Applicant: VETCO GRAY INC.
    Inventors: Jon Bonner Kahn, Fei Tang