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1.
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T-LOCK
| Application Number |
1500281 |
| Status |
Registered |
| Filing Date |
2019-06-27 |
| Registration Date |
2019-06-27 |
| Owner |
NWPC, LLC (USA)
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| NICE Classes ? |
17 - Rubber and plastic; packing and insulating materials
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Goods & Services
Semi-processed acid proof material composed of polymer vinyl
resins combined with inert pigments and plasticizers used
for lining or coating steel or concrete pipes, structures,
tanks, vats, walls, and floors.
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2.
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T-LOCK
| Application Number |
199805600 |
| Status |
Registered |
| Filing Date |
2019-06-27 |
| Registration Date |
2021-07-07 |
| Owner |
NWPC, LLC (USA)
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| NICE Classes ? |
17 - Rubber and plastic; packing and insulating materials
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Goods & Services
(1) Semi-processed acid proof material composed of polymer vinyl resins combined with inert pigments and plasticizers used for lining or coating steel or concrete pipes, structures, tanks, vats, walls, and floors.
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3.
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Mortar-coated steel pipes and methods of making the same
| Application Number |
13158335 |
| Grant Number |
08944114 |
| Status |
In Force |
| Filing Date |
2011-06-10 |
| First Publication Date |
2012-12-13 |
| Grant Date |
2015-02-03 |
| Owner |
- NWPC, LLC (USA)
- NWPC, LLC (USA)
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| Inventor |
- Mueller, Richard I.
- Friedrich, Ralph S.
- Sheng, Qizhong
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Abstract
Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.
IPC Classes ?
- F16L 1/028 - Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L 58/06 - Coatings characterised by the materials used by cement, concrete, or the like
- F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
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4.
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Pressure cast concrete or mortar lined steel pipes and methods of making the same
| Application Number |
13312781 |
| Grant Number |
08627854 |
| Status |
In Force |
| Filing Date |
2011-12-06 |
| First Publication Date |
2012-06-21 |
| Grant Date |
2014-01-14 |
| Owner |
- NWPC, LLC (USA)
- NWPC, LLC (USA)
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| Inventor |
- Friedrich, Ralph S.
- Sheng, Qizhong
- Kubat, Paul
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Abstract
Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.
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