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:
Apr. 30, 2019
Filed:
Oct. 28, 2013
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, Lakes Charles, LA (US);
Gregory M. Guillory, Jr., Lakes Charles, LA (US);
Charles R. Demarest, Lakes 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 not specified for such temperatures by opening and closing valves 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 due to temperature determinations of process lines by temperature sensors and automatically send a signal to predetermined controllers depending on the process line with the low temperature in order to prevent exposure of equipment to low temperatures while preventing the shutdown of the cold box.