PATENT CLAIM ANALYSIS

Application Number: 15772685
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-05
Patent Classification: ["219", "075000"]

Abstract:
Through the present invention, the load of a torch ( 16 ) applied to a welding workpiece (W) in a touch start method is reduced, and stability is significantly enhanced. A welding head ( 10 ) has a rigid straight-advancing movable part ( 12 ), an elevator drive tower ( 14 ) for moving the straight-advancing movable part ( 12 ) straight forward in the vertical direction, and a torch ( 16 ) mounted on the straight-advancing movable part ( 12 ) so as to be able to move in the vertical direction. One end part of a balance arm ( 28 ) rotatably attached to a multi-purpose support part ( 22 ) of the straight-advancing movable part ( 12 ) is connected to a torch body ( 30 ), and a balance weight ( 98 ) is attached to the other end part of the balance arm ( 28 ).

Claim (Index 5):
A TIG welding device comprising:\n a cylindrical torch body removably attaching and holding a torch electrode therein; a welding power supply for feeding a current to flow in a closed circuit including the torch electrode and a welding workpiece either for current application between a tip of the torch electrode and the welding workpiece or for generation of arc in a touch start system; a linear movable part movable in a vertical direction; a driving unit for moving the linear movable part in a straight line; an external terminal attached to a lateral surface or an upper end of the torch body and electrically connected to the torch electrode through a conducting path in the torch body; a current relay provided at the linear movable part, the current relay including a first current relay terminal where a welding current feeding line from the welding power supply terminates, and a second current relay terminal electrically connected to the first current relay terminal through a fixed conductor; a displaceable or deformable bridging conductor provided between the second current relay terminal of the current relay and the external terminal of the torch body; a torch nozzle attached to a lower end portion of the torch body for ejection of shielding gas toward the welding workpiece; a gas inlet port attached to the lateral surface or the upper end of the torch body and communicating with the torch nozzle through a gas path in the torch body; a gas relay provided at the linear movable part, the gas relay including a first gas relay port where a gas feeding line from a shielding gas feeding part for feeding the shielding gas terminates, and a second gas relay port communicating with the first gas relay port through a fixed gas chamber or a fixed gas path; and a displaceable or deformable bridging tube provided between the second gas relay port of the gas relay and the gas inlet port of the torch body.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 93.0
- Lexical Diversity: 2.26761
- Patent Class: 219.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15126382', '13731927', '14377332', '10938918', '15305158']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8254912228833717
- 35 USC 102 Novelty (BERT): 0.5011643883779127
- Combined Prediction Score: 0.7930585394328259
- Mean Citation Score: 256.18437600000004
- Max Citation Score: 282.67035
- Similarity Product: 224.02781581404804

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test