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:
Jun. 10, 2025
Filed:
Mar. 25, 2022
Fike Corporation, Blue Springs, MO (US);
Jim Vingerhoets, Rijkevorsel, BE;
Fike Corporation, Blue Springs, MO (US);
Abstract
A system () and method () for detecting and suppressing a dust explosion occurring in a process enclosure (). A sensor () generates a pressure signal indicative of a pressure within the enclosure (). A processing element () analyzes the signal to determine whether the dust explosion is occurring. The signal is sampled at a higher frequency, and then converted to a lower frequency by averaging, then filtered with first and intermediate filters to remove portions of the signal having rates of increase that exceed pre-established maximum magnitudes, and then filtered with a second filter having an appropriate cut-off frequency, stop band attenuation factor, and end of passband frequency. An alarm and a suppression system () are activated if a static pressure exceeds a limit, a rate of pressure increase exceeds a limit, or a total suppressed pressure exceeds a limit, each of which indicates occurrence of the dust explosion.