Patent · US Active

Filter element with high temperature polymer retaining straps and method of manufacture

US8021456B2 · kind B2 · utility

0Cited by

19References

16Claims

0Family size

Assignee

BHA Group, Inc. · US

Inventors

Thottupurathu Gopakumar · Overland Park, US
Alan Smithies · Overland Park, US
Jason Mei · East Meadow, US

Key dates

Filing date	Nov 21, 2008
Grant date	Sep 20, 2011
Priority date	—
Expiry date	Jul 22, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2265/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter element for removing particles from a particulate laden fluid stream includes, in an exemplary embodiment, a filtration media formed into a tubular configuration and that a plurality of circumferentially spaced apart pleats. The filter element also includes at least one melt-extruded retention strap extending circumferentially around the filtration media to limit radial movement of the filtration media at operating temperatures up to about 500° F. Each melt-extruded retention strap is formed from a melt extrudable amorphous thermoplastic polyimide.

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