DOVER ARTIFICIAL LIFT

[Class - 9]

Liquid level controllers; pneumatic and electric liquid level switches; automatic pressure control machines; temperature controllers for monitoring, controlling, and switching hydraulic or pneumatic systems; pressure relief valves for rail cars and fixed tanks; site flow indicators; pressure isolation rings; level indicators, level switches and level gauges; vacuum breaker, namely, a pressure relief valve for rail cars and fixed tanks; electronic controls used in liquid handling, liquid handling equipment, and vapor recovery equipment; electric adaptors and plugs; automatic gasoline dispensing nozzles not being parts of engines or machines and parts therefor, namely, swivels and breakaways; electric actuators therefor for use in controlling discharge of materials from truck trailer tanks; automatic liquid level gauges, liquid level controls and liquid level alarms, all for tanks cars, trucks, barges and stationary and intermodal tanks; electronic measuring, reference and calibration apparatus and instruments for use in sensing and measuring pressure and temperature, namely, quartz pressure transducers and accessories, namely, interfaces for transducers, isolator modules, sealing cones, resonators, and temperature sensor crystals; computer monitors and flat panel display screens; electronic components for industrial machinery, namely, indicators for use in monitoring load capacity of industrial machinery; electronic capacity indicators for industrial machinery and the percentage of that capacity being used; machine operator aids and warning systems primarily comprised of emergency warning lights, electronic warning bells, mounted video display monitors; electrical, electronic, and radio-controlled switches, sensors and computerized controls for crane systems; electrical, electronic, and radio-controlled devices for signaling, monitoring and metering for crane systems, namely, load cells, angle indicators, angle transmitters, load indicators, display panels, liquid crystal displays, tensiometers, rotation indicators, anti two-block systems consisting of sensors, transmitters, receivers, alarms, motion cut relays, motion cut valves and switches, anti two-block alarms, radio signal receivers, boom head transmitting radios, motion cut valves, and electrical, electronic, and radio-operated alarms.

[Class - 42]

Design and development of loading and coupling systems for loading and unloading of all types of critical hazardous fluids and hazardous bulk products; design and engineering of high-quality components used for clean energy fueling applications, such as CNG (compressed natural gas), Hydrogen and LPG (liquefied petroleum gas) on vehicles and dispensing systems; design of above ground fueling products and systems, namely, conventional, vacuum-assist, balance vapor recovery and manual dispensing nozzles, breakaways, hose swivels, and swivel breakaways; design of a wide array of below ground fueling products and systems, namely, integrated underground fuel transfer and containment systems, flexible coaxial primary pipe and fittings, tank and dispenser sumps and pans, remote fill sumps, special application sumps, quick connect dispenser sumps, spill containers, monitoring and fill pipe connection equipment, overfill prevention valves and emergency shut-off valves; design of automated fuel control systems and tank gauges.

[Class - 6]

Metal goods, namely, metal flanges, metal pipe couplings and joints, metal swivel joints, metal valves; metal pipe fittings, metal pipes and connectors; metal manually operated check valves and butterfly valves, not being parts of machines; bottom loader assemblies, namely, metal pipes that connect a movable tank to a fixed storage tank or similar to allow for the transfer of fluids; tank car loading and unloading connections, namely, metal pipes and couplings; metal piping systems for transfer of chemicals comprising swivel joints, pipes, tubes, elbows, flanges, fluid couplings; loading and unloading fluid piping systems of metal comprising swivel joints, pipes, tubes, elbows, flanges, fluid couplings; metal slide sleeve loading arms; metal swivel hose connectors; metal coupling assemblies; metal drop tubes not being equipment for treating groundwater and soil; metal dust caps used as a component part of metal piping systems; metal ventilating ducts; non-automatic gasoline dispensing nozzles and parts therefor, namely, swivels and breakaways; high and low pressure and temperature metal sealing couplings and connectors; metal pipes, metal plugs and chains.