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:
May. 06, 2014
Filed:
Mar. 23, 2012
Dennis M. Hilton, Nashua, NH (US);
Karl Taub, Arlington, MA (US);
Keith Lipford, Baltimore, MD (US);
Philip A. Zanghi, Franklin, MA (US);
Dennis M. Hilton, Nashua, NH (US);
Karl Taub, Arlington, MA (US);
Keith Lipford, Baltimore, MD (US);
Philip A. Zanghi, Franklin, MA (US);
W.R. Grace & Co. -Conn., Columbia, MD (US);
Abstract
A system is adapted to automatically maintain a desired yield level for a slurry flow. Measurements of the electrical conductivity of a slurry are taken and corrected for the effects of temperature and pressure. The corrected conductivity measurements are used to arrive at a value for system yield. The system automatically determines if the yield is too high or too low relative to a desired level, and controls the rate at which accelerator is added to the slurry in order to increase or decrease yield.