Patents by Inventor Nathan J. Hamblin

Nathan J. Hamblin 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).

  • Control valve trim and seat design for valve trim with minimal unbalanced area
    Patent number: 7055548
    Abstract: A fluid control valve trim and seat with a valve plug of a radius of about 0.03 inch, when used in conjunction with a valve seat angle of about 75°, results in minimal unbalance area. The valve trim is provided with pairs of anti-cavitation notches. The notches are arranged such that notches of each given pair are angled with respect to one another, and may be further arranged such that adjacent pairs of notches are off-set relative to one another, so as to increase the time fluid spends in the plenum, resulting in proper staging and controlled pressure drop as fluid passes through the valve.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 6, 2006
    Assignee: Fisher Controls International LLC
    Inventors: Nathan J. Hamblin, Ted A. Long
  • Control valve trim and seat design for valve trim with minimal unbalanced area
    Publication number: 20040238050
    Abstract: A fluid control valve trim and seat with a valve plug of a radius of about 0.03 inch, when used in conjunction with a valve seat angle of about 75 °, results in minimal unbalance area. The valve trim is provided with pairs of anti-cavitation notches. The notches are arranged such that notches of each given pair are angled with respect to one another, and may be further arranged such that adjacent pairs of notches are off-set relative to one another, so as to increase the time fluid spends in the plenum, resulting in proper staging and controlled pressure drop as fluid passes through the valve.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Nathan J. Hamblin, Ted A. Long