Patent · US Expired

Air filter for workstations and methods of making and using such air filter

US5236480A · kind A · utility

21Cited by

21References

9Claims

0Family size

Assignee

Camfil AB · SE

Inventors

Anders Svensson · Växjö, SE
Sverker Hugert · Trosa, SE

Key dates

Filing date	Aug 4, 1992
Grant date	Aug 17, 1993
Priority date	—
Expiry date	Aug 4, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/05
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An air filter unit comprising a first sheet of filter material folded into a zig-zag configuration with a generally planar second sheet of fine mesh air penetrable material extending across apexes of the zig-zag fold on one or both sides of the filter. The second sheet includes peripheral portions which are folded up against the lateral edges of the first sheet to facilitate mounting of the filter unit within a frame.

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