Patent · US Expired

Packet for compound treatment of gases

US5069694A · kind A · utility

32Cited by
16References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 2, 1990
Grant dateDec 3, 1991
Priority date
Expiry dateJul 2, 2010

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/1307
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A packet for effecting a compound treatment of gaseous material by desiccation and/or absorption and/or adsorption including a permeable envelope of carbon-loaded sheet material for effecting a first treatment of gaseous material which comes into contact with it, and bulk material in the envelope for effecting a second treatment of the gaseous material which enters the envelope. An envelope fabricated of carbon-loaded paper for receiving a foreign body and adsorbing gases which may deleteriously affect it.

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