Expert Witness Forensic Engineer Industrial Controls Automation New Orleans
Arthur Zatarain
Project Profile
Patent Infringement: Vapor Recovery System
with Variable Speed Vacuum Pump

Patent infringement: liquid fuel dispenser vapor recovery system (VRS) using a variable speed vacuum pump. The vapor pump speed (and resulting vapor rate) was electrically controlled to match the liquid delivery rate. The issues involved infringement by a VRS that did not electrically modulate the vapor flow in response to changes in liquid flow. The infringed device instead used a constant speed vapor pump with a fixed, mechanically adjusted vacuum pressure.



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