Lifeng Luo

Person

Lebanon, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Plasma arc cutting process and apparatus using an oxygen-rich gas s...
- Patent number 5,695,662
- Issue date Dec 9, 1997
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for high quality plasma arc and laser cutting of stainless...
- Patent number 5,653,896
- Issue date Aug 5, 1997
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for a plasma arc torch
- Patent number 5,601,734
- Issue date Feb 11, 1997
- Hypertherm, Inc.
- Lifeng Luo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc cutting process and apparatus using an oxygen-rich gas s...
- Patent number 5,591,357
- Issue date Jan 7, 1997
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for high quality plasma arc and laser cutting of stainless...
- Patent number 5,558,786
- Issue date Sep 24, 1996
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc cutting torch ignition circuit and method providing a fo...
- Patent number 5,548,097
- Issue date Aug 20, 1996
- Hypertherm, Inc.
- Richard W. Couch
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for a plasma arc torch
- Patent number 5,464,962
- Issue date Nov 7, 1995
- Hypertherm, Inc.
- Lifeng Luo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc torch ignition circuit and method
- Patent number 5,416,297
- Issue date May 16, 1995
- Hypertherm, Inc.
- Lifeng Luo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for high quality plasma arc cutting of stainless steel and...
- Patent number 5,414,236
- Issue date May 9, 1995
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc cutting process and apparatus using an oxygen-rich gas s...
- Patent number 5,396,043
- Issue date Mar 7, 1995
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for high quality plasma arc and laser cutting of stainless...
- Patent number 5,380,976
- Issue date Jan 10, 1995
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Nozzle and method of operation for a plasma arc torch
- Patent number 5,317,126
- Issue date May 31, 1994
- Hypertherm, Inc.
- Richard W. Couch
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for high current density plasma arc torch
- Patent number 5,310,988
- Issue date May 10, 1994
- Hypertherm, Inc.
- Richard W. Couch
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Swirl ring and flow control process for a plasma arc torch
- Patent number 5,170,033
- Issue date Dec 8, 1992
- Hypertherm, Inc.
- Richard W. Couch
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process and apparatus for reducing electrode wear in a plasma arc t...
- Patent number 5,166,494
- Issue date Nov 24, 1992
- Hypertherm, Inc.
- Lifeng Luo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Proceses and apparatus for reducing electrode wear in a plasma arc...
- Patent number 5,070,227
- Issue date Dec 3, 1991
- Hypertherm, Inc.
- Lifeng Luo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Person

Patents Grantslast 30 patents

Plasma arc cutting process and apparatus using an oxygen-rich gas s...

Process for high quality plasma arc and laser cutting of stainless...

Electrode for a plasma arc torch

Plasma arc cutting process and apparatus using an oxygen-rich gas s...

Process for high quality plasma arc and laser cutting of stainless...

Plasma arc cutting torch ignition circuit and method providing a fo...

Electrode for a plasma arc torch

Plasma arc torch ignition circuit and method

Process for high quality plasma arc cutting of stainless steel and...

Plasma arc cutting process and apparatus using an oxygen-rich gas s...

Process for high quality plasma arc and laser cutting of stainless...

Nozzle and method of operation for a plasma arc torch

Electrode for high current density plasma arc torch

Swirl ring and flow control process for a plasma arc torch

Process and apparatus for reducing electrode wear in a plasma arc t...

Proceses and apparatus for reducing electrode wear in a plasma arc...