The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2022
Filed:
Apr. 29, 2019
Wpt Llc, Houston, TX (US);
Tiong-Ee Ting, Houston, TX (US);
Kenneth M. Istre, Sulphur, LA (US);
Newton Landreneau, Moss Bluff, LA (US);
W. Ryan Pitt, Lake Charles, LA (US);
Gregory M. Guillory, Jr., Lake Charles, LA (US);
Charles R. Demarest, Lake Charles, LA (US);
Toby Darbonne, Sulphur, LA (US);
Troy L. Irwin, Iowa, LA (US);
WPT LLC, Houston, TX (US);
Abstract
A system of interlocks for controlling flow of low temperature process streams in a manufacturing process through a cold box to equipment or piping not specified for such temperatures by opening and closing valves and starting and stopping pumps. At least one interlock affects streams heated in the cold box. At least one interlock affects the streams cooled in the cold box. The interlocks are activated by temperatures of process lines to prevent exposure of equipment and piping to low temperatures while preventing the shutdown of the cold box. An override controller including a predictive failure capability is also provided.