U.S. federal trademark · Serial No. 99469032
Meter proving equipment, namely, mechanical displacement prover spheres in the nature of water and flow meters used to gauge volume displacement and liquid evacuation in pipelines; sphere detector switches and meter provers, both in the nature of flow switches used for verifying the accuracy of meters which measure flow through pipelines; parts and accessories especially designed therefor being pressure pumps, valve wrenches, core extractors, sizing adapters and filling spouts
Spheres used as liquid-product separators for batch separation in flow lines carrying two or more products, including the separation of different grades of gasolines, crudes, oils and other liquid petroleum products; spheres used as pigs for cleaning pipes and in hydrostatic testing and liquid removal in water and gas lines
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.