[특허]D-C arc welding apparatus

[미국특허] D-C arc welding apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23K-009/10
출원번호	US-0766416 (1991-09-25)
우선권정보	JP-0258628 (1990-09-27); JP-0058025 U (1991-07-24); JP-0061997 U (1991-08-07); JP-0202760 (1991-08-13)
발명자 / 주소	Kikuchi Shinji (Gunma JPX) Tanuma Toshihiko (Gunma JPX) Suzuki Toshimichi (Gunma JPX)
출원인 / 주소	Sawafuji Electric Co., Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 52 인용 특허 : 0

초록 ▼

A d-c arc welding apparatus including an engine-driven welder converting the a-c power generated by an engine-driven alternator into d-c power for use as the drive power of the welder, a battery-driven welder using a battery as the drive power of the welder, and a changeover switch for selecting between a high-power mode in which the above-mentioned welding d-c outputs are connected in parallel and fed to the welding apparatus, and a low-power mode in which either of the above-mentioned welding d-c outputs is supplied independently to the welding apparatus.

대표청구항 ▼

A welding apparatus comprising: an engine welder including an alternator means for generating an a-c voltage, said engine welder also including a means for converting said a-c voltage into d-c voltage; a battery welder including a battery; changeover means for connecting said engine welder and said battery welder in parallel, said change over means also separately connecting said engine welder to engine welding outputs and said battery welder to battery welding outputs; switching means for blocking and passing current between a negative terminal of said battery welding outputs and a ground terminal of said battery; a shunt resistor connected between said switching means and said ground terminal of said battery; current approximation means for detecting current flowing in said shunt resistor and for generating a welding current waveform substantially representative of a current flowing through said battery welding terminals; and controller means for controlling said switching element dependent on said welding current waveform.

이 특허를 인용한 특허 (52) 인용/피인용 타임라인 분석

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Reynolds, Jon O., Method and system for welding with paralleled power supplies.
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Farah, Samir F.; Meckler, Andreu P., Multi-output engine welder supplying full electrical power capacity to a single welding output.
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Albrecht,Bruce; Reynolds,Jon; Vogel,Bernard J., Portable welding-type apparatus with interchangeable energy storage device.
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Enyedy, Edward A., Welding apparatus providing auxiliary power.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] D-C arc welding apparatus 원문보기