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:
Aug. 18, 2009
Filed:
Feb. 06, 2006
Jagadeesh Brahmajosyula, Krishnanagar, IN;
Yogananda A. Prabhakara, Bangalore, IN;
Lokesh T. Siddaramanna, Karnataka, IN;
Jagadeesh Brahmajosyula, Krishnanagar, IN;
Yogananda A. Prabhakara, Bangalore, IN;
Lokesh T. Siddaramanna, Karnataka, IN;
Honeywell International Inc., Morristown, NJ (US);
Abstract
A digital signal representative of a difference in pressure is received from a differential pressure transmitter. A noise signal is obtained by processing the signal through a band pass filter or otherwise to provide a filtered noise signal. Absolute values of the filtered noise signal are calculated and compared to one or more predetermined threshold values to determine if one or more impulse lines are plugged. A training mode is used to determine the thresholds, which may be a function of flow rate and other flow conditions.