Machines and parts of machines, namely, flameless venting device in the nature of mesh filters and flame absorbers that quench and filter flames used to cool down flames in combustible dust explosions for elevators and mechanically operating industrial structural screens for gravel and dirt screening machines for protecting against gas and dust explosions; parts of machines, namely, explosion protection device in the nature of filters, ducts, safety release valves that safely release pressure for elevators and mechanically operating industrial structural screens for gravel and dirt screening machines for explosion relief of rupture discs for defined pressure relief; flame traps, namely, flame barriers in the nature of mesh filters for elevators and mechanically operating industrial structural screens for gravel and dirt screening machines for protecting against gas and dust explosions, and flame absorbers being parts of machines for vent ducts to filter flames in combustible duct explosions

Apparatus and instruments, namely, safety explosive containment vessel with a safety function for controlling, monitoring and protection against high and low pressures and vacuum conditions resulting from explosions; regulating, measuring and control apparatus, namely, pressure transmitters and systems thereof comprised of pressure sensors and pressure gauges for pressure relief of gas and dust explosions; autonomous protective systems, namely, flame traps in the nature of pressure sensors and pressure transmitters to absorb and cool down flames for extinction of combustions and dust explosions