Welding Helmet
|
PAT. NO. |
Title |
| 1 |
6,973,672 |
Welding helmet removable cartridge
|
| 3 |
6,815,652 |
Low power phototransistor-based
welding helmet providing reduced sensitivity to low intensity light
and sharp phototransistor response to high intensity light |
| 5 |
6,614,409 |
Glare shielding device of welding
helmet and method of controlling the same |
| 6 |
6,557,174 |
Replaceable, self-contained expanded
viewing light shield cartridge for welding helmet |
| 7 |
6,401,244 |
Welding helmet and face plate |
| 8 |
6,260,197 |
Welding helmet with conical pivoting
mechanism for head gear strap |
| 10 |
6,178,552 |
Welding helmet |
| 11 |
6,151,711 |
Welding helmet with removable
face plate and lens cartridge |
| 13 |
6,070,264 |
Welding helmet having auto-darkening
and manually adjustable lens shade control |
| 17 |
5,896,579 |
Welding helmet with air circulating
system |
| 18 |
5,813,049 |
Welding helmet |
| 19 |
5,533,206 |
Welding helmet with removable
electronic quick change cartridge |
| 21 |
5,189,735 |
Welding system with automatic
welding helmet and safety circuit |
| 23 |
4,945,572 |
Welding helmet |
| 24 |
4,937,879 |
Automatic welding helmet |
| 27 |
4,853,973 |
Welding helmet |
| 28 |
4,649,571 |
Dual vision welding helmet |
| 29 |
4,422,185 |
Welding helmet |
| 30 |
4,241,286 |
Welding helmet lens assembly |
| 31 |
4,237,557 |
Control system for welding helmet
liquid crystal light shutter |
| 32 |
4,185,328 |
Sight and vision protection for
arc welding helmet |
| 34 |
4,103,359 |
Noise suppressing welding helmet
|
| 35 |
RE29,684 |
Welding helmet with eye piece
control |
| 36 |
4,039,803 |
Electro-optic welding helmet lens
assembly |
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