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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0079859 (1970-10-12) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 45 인용 특허 : 0 |
A crawler is disclosed for traveling through a workpiece such as a pipeline and inspecting the same for defects. The crawler is a completely self-contained, self-propelled and self-operated vehicle adapted to travel through a pipeline, stop at particular locations such as a girth weld between adjoin
The combination of a self-propelled crawler for traveling through a pipeline, inspection means on said crawler for inspecting welds in the pipeline, control means on said crawler for controlling the operation of the crawler and of the inspection means on the crawler, said control means being effecti
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