Patent ID: 6912909
Filing Date: 2005-07-05
Classification: G01L

Abstract:
1. In a diaphragm-type sensor arrangement to measure pressure in a slurry of solid particles suspended in a liquid in a main pipe, said sensor arrangement having at least one connecting line in fluid communication with the slurry in the main pipe, said sensor further including a housing having a chamber isolated from fluid communication with the connecting line by a flexible diaphragm, said chamber being filled with a fluid and said diaphragm being displaced relative to said chamber in response to pressure changes in said connecting line, said sensor arrangement having a pressure reading device isolated from fluid communication with the connecting line and responsive to pressure changes in the fluid in said chamber, the improvement including: a reaming arrangement including a reaming member mounted to extend within and along said connecting line, said reaming member further being movable relative to said connection line to breakup any consolidated plugs of said solid particles clogging said connecting line.