Patent · US Expired

Pre-aligned demountable plasma torch

US4739147A · kind A · utility

23Cited by

4References

6Claims

0Family size

Assignee

THE DOW CHEMICAL COMPANY · US

Inventors

Gerhard Meyer · Erlangen, DE
Harold W. Eberhart · Midland, US
Laurence F. Novak · Sanford, US

Key dates

Filing date	Jan 30, 1987
Grant date	Apr 19, 1988
Priority date	—
Expiry date	Jan 30, 2007

Classification

Technology area (CPC H)Electricity
CPC primaryH05H1/38
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An improved pre-aligned demountable plasma torch wherein the three tubes that are generally used in demountable plasma torches are now joined together with standard taper joints. The axis of the standard taper joints are essentially centrally aligned with the central long axis of the tubes so that the tubes are pre-aligned and essentially concentric in the assembled torch. If any of the tubes becomes damaged in use they can be replaced with a similarly constructed tube with a minimum of interruption and expense, without the need to adjust the tubes to be essentially concentric and in an assembly consisting of only 3 parts.

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