Patent · US Active

Filter efficency of a fluid filter

US11478732B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

IoT Diagnostics · US

Inventors

Rex A. Wetherill · Cincinnati, US
Jeremy Drury · Cincinnati, US
Jon Prescott · Lexington, US

Key dates

Filing date	Nov 6, 2019
Grant date	Oct 25, 2022
Priority date	—
Expiry date	Jul 26, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/084
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Systems and methods determine a filter efficiency of a fluid filter. A characteristic of fluid flow of a fluid is monitored at a first point and at a second point on a flow path of a fluid filter. A particle absorption level of the fluid filter is determined that is a difference in the characteristic of the fluid flow at the first point and the second point. The particle absorption level of the fluid filter is at a particle absorption saturation level based on the difference in the characteristic of the fluid flow at the first point and the second point. The particle absorption saturation level is an indicator that the particles retained by the fluid filter is decreased and replacement of the fluid filter is required to increase the particles retained by the fluid filter to be above the particle absorption saturation level.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.