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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0329732 (1989-03-28) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 23 인용 특허 : 8 |
A plasma torch is provided with a safety switch which is connected in a circuit so as to control high voltage applied to the torch. The switch is held closed by the torch tip. When the tip is removed, as for service or replacement, the switch opens and disables the high voltage, so that personnel ca
Plasma torch safety switch, comprising: switch means for disconnecting flow of current to the torch; removable torch tip means for maintaining said switch means closed, when said tip means is installed in the torch; air pressure actuated biasing means for biasing said switch means toward disconnect
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