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:
Mar. 23, 2010
Filed:
Sep. 21, 2007
Ravi Nath, Houston, TX (US);
Sanjay K Sharma, Houston, TX (US);
Ravi Nath, Houston, TX (US);
Sanjay K Sharma, Houston, TX (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method and related non-linear level controller (NLLC) for controlling surge capacity in a processing system including at least one vessel receiving an inlet flow of a fluid including a liquid subject to variation and supplying an outlet flow to at least one downstream unit includes the step of computing a first parameter relating to a difference between a current inventory in the vessel and a prevailing inventory limit for the vessel and a second parameter relating to a difference between the current inventory and an inventory set point. An unforced time to reduce the first parameter by a first percentage (T*) is compared to a first time T. The inlet flow or outlet flow is then controlled based on the first parameter if T*≦Tand based on the second parameter if T*>T