Dang Minh Vo

US Patent:

7946313, May 24, 2011

Filed:

Mar 5, 2008

Appl. No.:

12/042406

Inventors:

Dang The Vo - Houston TX, US

International Classification:

F16L 11/00

US Classification:

138135, 138134, 138140, 138127, 138177, 138172

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.

US Patent:

8276620, Oct 2, 2012

Filed:

Aug 24, 2009

Appl. No.:

12/546195

Inventors:

Dang The Vo - Houston TX, US

International Classification:

F16L 11/00

US Classification:

138135, 138134, 138109, 2852222

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.

US Patent:

20090160184, Jun 25, 2009

Filed:

Dec 20, 2007

Appl. No.:

11/961709

Inventors:

Dang The VO - Houston TX, US

International Classification:

F16L 33/00

US Classification:

285249

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.

US Patent:

20130087239, Apr 11, 2013

Filed:

Sep 28, 2012

Appl. No.:

13/631256

Inventors:

Dang The VO - Houston TX, US

International Classification:

F16L 11/20
B23P 11/00
F16L 23/00
F16L 11/12

US Classification:

138137, 138109, 29428, 138153

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.