CA2409409A1 - Nozzle for a plasma arc torch - Google Patents

Nozzle for a plasma arc torch Download PDF

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Publication number
CA2409409A1
CA2409409A1 CA002409409A CA2409409A CA2409409A1 CA 2409409 A1 CA2409409 A1 CA 2409409A1 CA 002409409 A CA002409409 A CA 002409409A CA 2409409 A CA2409409 A CA 2409409A CA 2409409 A1 CA2409409 A1 CA 2409409A1
Authority
CA
Canada
Prior art keywords
body portion
exit orifice
nozzle
plasma arc
generally conical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002409409A
Other languages
French (fr)
Other versions
CA2409409C (en
Inventor
Richard W. Couch Jr.
Nicholas A. Sanders
Lifeng Luo
John Sobr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hypertherm Inc
Original Assignee
Hypertherm, Inc.
Richard W. Couch Jr.
Nicholas A. Sanders
Lifeng Luo
John Sobr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/682,992 external-priority patent/US5166494A/en
Priority claimed from US07/682,991 external-priority patent/US5170033A/en
Priority claimed from US07/753,395 external-priority patent/US5396043A/en
Application filed by Hypertherm, Inc., Richard W. Couch Jr., Nicholas A. Sanders, Lifeng Luo, John Sobr filed Critical Hypertherm, Inc.
Publication of CA2409409A1 publication Critical patent/CA2409409A1/en
Application granted granted Critical
Publication of CA2409409C publication Critical patent/CA2409409C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The present invention relates to a nozzle for a plasma arc cutting torch formed of a conductive material and having an exit orifice at one end for a plasma jet, comprising: a hollow body portion formed having a generally conical, thin-walled configuration sloping toward the exit orifice, and an enlarged head portion formed integrally with said body portion, said head potion (i) being solid except for a central passage aligned with said exit orifice, (ii) having a generally conical outer surface that also slopes toward said exit orifice, and (iii) having a diameter adjacent said body portion that exceeds the diameter of said body portion to define a cut back recess.
CA002409409A 1991-04-12 1992-03-09 Nozzle for a plasma arc torch Expired - Lifetime CA2409409C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US07/682,992 US5166494A (en) 1990-04-24 1991-04-12 Process and apparatus for reducing electrode wear in a plasma arc torch
US682,991 1991-04-12
US682,992 1991-04-12
US07/682,991 US5170033A (en) 1990-04-24 1991-04-12 Swirl ring and flow control process for a plasma arc torch
US07/753,395 US5396043A (en) 1988-06-07 1991-08-30 Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US753,395 1991-08-30
CA002108121A CA2108121C (en) 1991-04-12 1992-03-09 Plasma arc cutting process and apparatus using an oxygen-rich gas shield

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002108121A Division CA2108121C (en) 1991-04-12 1992-03-09 Plasma arc cutting process and apparatus using an oxygen-rich gas shield

Publications (2)

Publication Number Publication Date
CA2409409A1 true CA2409409A1 (en) 1992-10-29
CA2409409C CA2409409C (en) 2006-05-16

Family

ID=35170029

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002409409A Expired - Lifetime CA2409409C (en) 1991-04-12 1992-03-09 Nozzle for a plasma arc torch
CA002409420A Expired - Lifetime CA2409420C (en) 1991-04-12 1992-03-09 Plasma arc cutting process and apparatus using an oxygen-rich gas shield
CA002409405A Expired - Lifetime CA2409405C (en) 1991-04-12 1992-03-09 Control system for a gas flow to a plasma arc torch

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002409420A Expired - Lifetime CA2409420C (en) 1991-04-12 1992-03-09 Plasma arc cutting process and apparatus using an oxygen-rich gas shield
CA002409405A Expired - Lifetime CA2409405C (en) 1991-04-12 1992-03-09 Control system for a gas flow to a plasma arc torch

Country Status (1)

Country Link
CA (3) CA2409409C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110315177A (en) * 2019-08-06 2019-10-11 河北瓦尔丁科技有限公司 Plasma power supply torch head accelerates gas path device

Also Published As

Publication number Publication date
CA2409420C (en) 2005-09-20
CA2409405C (en) 2007-02-27
CA2409409C (en) 2006-05-16
CA2409420A1 (en) 1992-10-29
CA2409405A1 (en) 1992-10-29

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry