Patent · US Expired

Hyperfrequency energy plasma torch

US4645973A · kind A · utility

3Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 2, 1984
Grant dateFeb 24, 1987
Priority date
Expiry dateOct 2, 2004

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05H1/30
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The hyperfrequency energy is conveyed through a waveguide (1) having a rectangular section. A central plasmagenic gas and an annular sheathing gas are supplied through a T-shaped transverse pipe (2). The upper branches of the T extend in a sealed manner through the small sides of the waveguide. The stem of the T extends with clearance through an opening (7) formed in a large side of the waveguide and is provided with a nozzle (22) which is surrounded by a sleeve (3) terminating in a rolled-over flange (25). Application in the treatment of surfaces and the production of chemical reactions.

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