DUOVANE Trademark

Checking and control apparatus for vacuum pumps and vacuum pump stands, namely, Control valves for regulating the flow of gases and liquids, Power controllers, Leak detectors for vacuum pumps; vacuum, measuring and testing apparatus, namely, vacuum gauges, Laser measuring systems, Voltage testers; leak detection apparatus, namely, leak detectors for vacuum pumps; residual gas analyzers; gas measuring apparatus, namely, gas sensors for measuring gas concentration; vacuum-tight, mechanical and electrical ducts in the nature of namely, electricity ducts, non-metal thermocouple heating ducts, non-metal fluid ducts, nonmetal pipe ducts, rotary bushings, rotary and sliding bushings, sliding bushings, which are all specially adapted and cannot be used independently, as parts of measuring apparatus, regulating apparatus, control apparatus and controlling devices namely, Laser measuring systems, Control units for regulating start-up electrical motors, Electrical controlling devices; electric cords, namely, electricity conduits

Vacuum pumps and vacuum pump stands consisting of vacuum pumps; drives and shaft bearings for vacuum pumps; fittings for vacuum pumps and vacuum pump stands, namely, oil separators, condensate separators, dust separators, radiators for motors and for vacuum pump motors, filters for motors and for vacuum pump motors, steam air condensers, flanges and control apparatus in the nature of pump control valves; valves being parts of machines; vacuum engineering installations, consisting of vacuum pumps, fittings for vacuum pumps, namely, oil separators, condensate separators, dust separators, radiators for motors and for vacuum pump motors, filters for motors and for vacuum pump motors, steam air condensers, metal flanges specially adapted for use with vacuum pumps and control apparatus in the nature of pump control valves, measuring apparatus in the nature of dust measuring apparatus specially adapted for use with vacuum pumps, connection electricity conduits specially adapted for use with vacuum pumps, valves, vacuum vessels in the nature of shaft bearings for vacuum pumps, and process engineering attachments in the nature of drives for vacuum pumps; parts of vacuum engineering installations being vacuum pumps, namely, vacuum-tight, mechanical and electrical ducts, electricity ducts, non-metal thermocouple heating ducts, non-metal fluid ducts, non-metal pipe ducts, rotary bushings, rotary and sliding bushings, sliding bushings all as specially adapted parts that cannot be used independently for vacuum pumps

Insulators, being non-metal flexible pipes, tubes, hoses and connectors, namely, valves, not of metal in the nature of valves of rubber or vulcanized fiber; valves of rubber or vulcanized rubber