Patent · US Expired

Filter element

US4247315A · kind A · utility

34Cited by
3References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 4, 1978
Grant dateJan 27, 1981
Priority date
Expiry dateDec 4, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S55/09
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A plurality of filter elements which are located in waste containers is disclosed. The filter elements serve for the precipitation of materials which are injurious to health from air streams, and in particular, from air streams in the field of nuclear installations and the disposal of said materials.

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