Patents by Inventor Erik Matthew Quijano

Erik Matthew Quijano 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).

  • Pressure reducing fluid regulators
    Patent number: 6968857
    Abstract: A pressure reducing fluid regulator having a housing with a flange including a plurality of ear-shaped protrusions is disclosed. Each of the protrusions includes at least one aperture configured to receive fastener such that the circumferential spacing between first and second fasteners is less than the circumferential spacing between the second fastener and a third fastener. The regulator includes a valve having a valve seat, a valve disc, a valve stem coupled to the valve disc and a valve guide that holds the valve stem. A lever having a first end coupled to the valve stem and a second end coupled to a diaphragm applies a force to the valve stem in a direction that is non-parallel to the longitudinal axis of the valve stem to cause the valve stem to frictionally engage the valve guide. The valve stem includes a stop that limits travel of the valve stem and disc toward the valve seat.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 29, 2005
    Assignee: Emerson Process Control
    Inventors: James Chester Hawkins, David Edwards Woollums, Neal Arthur Ackerman, Chun Lin, Harold Joe McKinney, Erik Matthew Quijano
  • Pressure reducing fluid regulators
    Publication number: 20040187930
    Abstract: A pressure reducing fluid regulator having a housing with a flange including a plurality of ear-shaped protrusions is disclosed. Each of the protrusions includes at least one aperture configured to receive fastener such that the circumferential spacing between first and second fasteners is less than the circumferential spacing between the second fastener and a third fastener. The regulator includes a valve having a valve seat, a valve disc, a valve stem coupled to the valve disc and a valve guide that holds the valve stem. A lever having a first end coupled to the valve stem and a second end coupled to a diaphragm applies a force to the valve stem in a direction that is non-parallel to the longitudinal axis of the valve stem to cause the valve stem to frictionally engage the valve guide. The valve stem includes a stop that limits travel of the valve stem and disc toward the valve seat.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Inventors: James Chester Hawkins, David Edwards Woollums, Neal Arthur Ackerman, Chun Lin, Harold Joe McKinney, Erik Matthew Quijano