Patent · US Active

High visibility plasma arc torch

US7989727B2 · kind B2 · utility

29Cited by

33References

24Claims

0Family size

Assignee

Hypertherm, Inc. · US

Inventors

Peter J. Twarog · Lebanon, US
Jesse A. Roberts · Colchester, US

Key dates

Filing date	Dec 15, 2006
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Jan 6, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH05H1/3478
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to maintain torch and consumables performance while reducing visual obstruction to the user, by coordinating, balancing, and optimizing design requirements and stack up tolerances. The invention also includes a related low-profile safety switch that promotes workpiece visibility and minimizes view obstruction.

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