Dang H Vo, 38Houston, TX

7946313, May 24, 2011

Mar 5, 2008

12/042406

Dang The Vo - Houston TX, US

F16L 11/00

138135, 138134, 138140, 138127, 138177, 138172

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.

8276620, Oct 2, 2012

Aug 24, 2009

12/546195

Dang The Vo - Houston TX, US

F16L 11/00

138135, 138134, 138109, 2852222

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.

2009016, Jun 25, 2009

Dec 20, 2007

11/961709

Dang The VO - Houston TX, US

F16L 33/00

285249

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.

2013008, Apr 11, 2013

Sep 28, 2012

13/631256

Dang The VO - Houston TX, US

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

138137, 138109, 29428, 138153

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.