Patents by Inventor Dang Vo

Dang Vo 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).

  • Publication number: 20130087239
    Abstract: A flexible pipe for conducting fluid, such as offshore production fluids, has interior tubing, a series of rings and clamps, and exterior tubing. The interior tubing has an extruded tube and a surrounding layer. Outer rings dispose about the interior tubing and abut end-to-end. Inner rings dispose on the tubing and fit in between each of the outer rings. These inner rings have tapered surfaces that fit against beveled ends defined in each end of the outer ring's internal bore. The clamps affix the abutting ends of the outer rings together, and the exterior tubing disposes on the series of rings and clamps. This exterior tubing has an inner layer of wrapped tape surrounded by an extruded tube. A flange couples by an end clamp to the end ring of the pipe, and inner and outer supports on the flange support the interior and exterior tubing.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 11, 2013
    Inventor: Dang The VO
  • Patent number: 8276620
    Abstract: A flexible pipe for conducting fluid, such as offshore production fluids, has interior tubing, a series of rings and clamps, and exterior tubing. The interior tubing has an extruded tube and a surrounding layer. Outer rings dispose about the interior tubing and abut end-to-end. Inner rings dispose on the tubing and fit in between each of the outer rings. These inner rings have tapered surfaces that fit against beveled ends defined in each end of the outer ring's internal bore. The clamps affix the abutting ends of the outer rings together, and the exterior tubing disposes on the series of rings and clamps. This exterior tubing has an inner layer of wrapped tape surrounded by an extruded tube. A flange couples by an end clamp to the end ring of the pipe, and inner and outer supports on the flange support the interior and exterior tubing.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: October 2, 2012
    Inventor: Dang The Vo
  • Patent number: 7946313
    Abstract: A flexible pipe for fluid transport especially in offshore application has a first extruded tube having nylon and a first layer having aromatic polyamide disposed about the first tube. A plurality of rings composed of stainless steel are disposed about the first layer. Each of the rings has first ends with circumferential lips and second ends with circumferential grooves interconnecting together. These lips and grooves permit adjacent ones of the rings to tilt relative to one another by about 1.5-degrees for every 4-inches of flexible pipe. A second extruded tube having fiberglass is disposed about the plurality of rings, and an exterior jacket having nylon is disposed about the second tube.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 24, 2011
    Inventor: Dang The Vo
  • Publication number: 20090308478
    Abstract: A flexible pipe for conducting fluid, such as offshore production fluids, has interior tubing, a series of rings and clamps, and exterior tubing. The interior tubing has an extruded tube and a surrounding layer. Outer rings dispose about the interior tubing and abut end-to-end. Inner rings dispose on the tubing and fit in between each of the outer rings. These inner rings have tapered surfaces that fit against beveled ends defined in each end of the outer ring's internal bore. The clamps affix the abutting ends of the outer rings together, and the exterior tubing disposes on the series of rings and clamps. This exterior tubing has an inner layer of wrapped tape surrounded by an extruded tube. A flange couples by an end clamp to the end ring of the pipe, and inner and outer supports on the flange support the interior and exterior tubing.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Inventor: Dang The VO
  • Publication number: 20090223586
    Abstract: A flexible pipe for fluid transport especially in offshore application has a first extruded tube having nylon and a first layer having aromatic polyamide disposed about the first tube. A plurality of rings composed of stainless steel are disposed about the first layer. Each of the rings has first ends with circumferential lips and second ends with circumferential grooves interconnecting together. These lips and grooves permit adjacent ones of the rings to tilt relative to one another by about 1.5-degrees for every 4-inches of flexible pipe. A second extruded tube having fiberglass is disposed about the plurality of rings, and an exterior jacket having nylon is disposed about the second tube.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 10, 2009
    Inventor: Dang The VO
  • Publication number: 20090160184
    Abstract: An end connector for a flexible pipe positions onto an end of the flexible pipe. An insert having inner and outer conical surfaces positions in the connector's housing. To mechanically grip the pipe's inner layers, an outer sleeve positions in the housing against the first layer, and an outer nut threads onto the outer sleeve and compresses the first layer against the insert's outer surface. Also, an inner sleeve positions in the housing against a second layer, and an inner nut threads onto the sleeve and compresses the second layer against the insert inner surface. A tubular sleeve can position within an internal bore of the pipe for support, and another conical sleeve can be engaged between the housing and the outside of the pipe. The connector's end can be flexible or rigid along the pipe, while a flange on the connector's other end can bolt to another component.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Inventor: Dang The VO
  • Publication number: 20060268827
    Abstract: A wireless communication network has radio resources for use to support calls over circuit switched (CS) and packet switched (PS) channels. The network uses such radio resources to first support CS calls and thereafter uses the leftover radio resources to support PS calls. The present invention provides method and apparatus that effectively schedule and support incoming CS calls based on frame-offset selection so as to maximize the leftover radio resources that could be used to support PS calls.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 30, 2006
    Inventors: Mahesh Makhijani, Srinivasan Balasubramanian, Dang Vo