Patent · US Active

Swirl ring and contact element for a plasma arc torch cartridge

US10335888B2 · kind B2 · utility

3Cited by

0References

23Claims

0Family size

Assignee

Hypertherm, Inc. · US

Inventors

Yu Zhang · Hanover, US
Jesse A. Roberts · Colchester, US
Zheng Duan · Hanover, US
Michael Scheller · Unterpleichfeld, DE
David Agan · Enfield, US
Steven Moody · Charlestown, US
Stephen T. Eickhoff · Hanover, US
Garrett Quillia · Hanover, US

Key dates

Filing date	Feb 9, 2018
Grant date	Jul 2, 2019
Priority date	—
Expiry date	Feb 9, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH05H1/3489
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A swirl ring for a plasma arc torch includes a body configured to at least partially surround and slidingly engage an electrode of the plasma arc torch. The body includes a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, and at least one protuberance extending from the second end in a direction of the longitudinal axis. The at least one protuberance is configured to engage a switch of the plasma arc torch for sensing a presence of a swirl ring in the plasma arc torch.

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