ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,737, issued on Feb. 24, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Back purging robotic crawler" was invented by Ali Faraj M. Al Qabani (Dhahran, Saudi Arabia), Muhammed Subhi A. Alnufaili (Dhahran, Saudi Arabia) and Saleh Mohammed H. Al Mansour (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A robotic crawler for back purging a weld location in a piping circuit includes a body, one or more conveyors coupled to the body for transporting the robotic crawler within the piping circuit, first and second seal assemblies configured to generate an interference seal with an interior of the piping circuit, a pai...