Patent · US Expired

Process and apparatus for supplying a gaseous mixture

US6840256B1 · kind B1 · utility

6Cited by
7References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 2000
Grant dateJan 11, 2005
Priority date—
Expiry dateJan 31, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/87652
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A method and apparatus for generating a non-flammable gaseous mixture from a first flammable gas and a second gas in which said first gas is flammable. Air may be extracted from the atmosphere or storage container to be treated. The air is circulated in a conduit (22) via blower (14). A flammable gas is injected (12) into the conduit where it is rapidly diluted to a level below its flammability limit. The method is suitable for unattended automatic treatment over an extended period of time, or a so-called “one shot/quick dump” fumigation where concentrations and flow rates are much higher and the process is under manual supervision.

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