Patent · US Expired

Filter system with automatic media refresh

US7186290B2 · kind B2 · utility

96Cited by
13References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 8, 2004
Grant dateMar 6, 2007
Priority date
Expiry dateMar 3, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF24F2221/44
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A filter system includes a source of clean filter media adjacent a channel through which fluid passes. The filter media is automatically advanced from the source to the channel and eventually to a sealed container adjacent the channel. The filter media is automatically advanced through the channel, where it is replaced with clean filter media in the channel. A controller controls the advancement of the filter media based upon time or based upon a current condition of the filter media.

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