| PETROTECHNIK LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20110315697 | IMPROVED TANK COLLAR - A tank collar assembly comprising: —(i) a first portion adapted at a first end to be connected to a tank around a manway or to a manway itself in a substantially fluid tight manner, said first portion being adapted to extend substantially entirely around the manway on the tank and to extend away from said tank or manway such that it forms an annular flange surrounding the manway; (ii) a second portion formed from a fusible material, said second portion being attached to the first portion in a substantially fluid-tight manner by a securing means; wherein a surface of said second portion is adapted to contact a corresponding fusible mating surface on the base of an access chamber. | 12-29-2011 |
| 20110155615 | CHAMBER - A modular chamber assembly comprising: —
| 06-30-2011 |
| 20090246053 | CONNECTION BETWEEN A WALL AND A PIPE - A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall ( | 10-01-2009 |
