Abstract: An application tool, in particular a chisel or a drill bit, is disclosed. The application tool has a tool head. The application tool further has a shank region in which a main body is arranged, wherein the main body has a first hardness. The application tool further has a coating that has a second hardness greater than the first hardness. The coating includes a hard metal, which comprises a hard material and a metal matrix. Advantageously, the durability of the application tool can be increased as a result.

Abstract: An insert tool, in particular a chisel or a drill, has a tool head, with a shaft region in which a main body is arranged. The main body has a first hardness, and with a coating which has a second hardness that is greater than the first hardness. The coating has chromium carbide or consists of chromium carbide. Advantageously, the durability of the insert tool can be prolonged as a result.

Abstract: The present invention relates to a pressure vessel for containing or transporting pressurized gas. More particularly it relates to such vessels for containing or transporting compressed natural gas. The present invention also relates to a method of storing or transporting gas onshore or offshore. Moreover, the present invention relates to a vehicle for transporting gas, in particular compressed natural gas.

Abstract: A CNG transportation vehicle comprising at least one vernally oriented, generally cylindrical, pressure vessel (10) of the type for containing and transporting CNG, the vessel having a generally cylindrical body and two ends and an opening in the form of a manhole at the top end thereof.

Abstract: An inspectable pressure vessel (10) for containing a fluid such as CNG, the vessel having a generally cylindrical shape over a majority of its length, at least one opening for gas loading and offloading and for liquid evacuation, at least one stainless steel layer as a first layer (100) for being in contact with the fluid when the fluid is contained within the vessel, the first layer being made of low-carbon stainless steel, and a further external composite layer (200) made of at least one fiber-reinforced polymer layer that will not be in contact with the fluid when the fluid is contained within the vessel.

Abstract: The present invention relates to a method of rotational moulding where a heating structure is incorporated into the mould. Further aspects of the invention relate to a mould for rotational moulding comprising a heating element. In an embodiment, the mould is a pressure vessel for transporting and storing compressed natural gas. The heating element may be incorporated into the pressure vessel, or may be placed in contact with the pressure vessel for the duration of the rotational moulding process.