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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0504286 (1995-07-20) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
Aircraft with full flight capability are connected to structural cables by an electrically powered drive element traveling inside the structural cables. Electricity distribution cables, part of a power distribution grid, connect to the structural cable along its length and provide power to the drive
A transportation system comprising: an elongated member, having means for conducting electricity, extending along a travel route; means for supporting the elongated member above ground level; at least one drive element which travels along the elongated member; an electrically activated means for cau
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