검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B25J-005/00 |
미국특허분류(USC) | 414/674 ; 901/1 ; 414/729 ; 280/42 |
출원번호 | US-0041563 (1993-04-02) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 183 인용 특허 : 0 |
A mobile vehicle having a substantially hexagonally-shaped frame member that is movable between a collapsed position to enable the vehicle to enter a vessel opening or an area having constrained access points and a more stable expanded position. Drive apparatuses are attached to the frame member for driving the vehicle on a surface. The vehicle is also equipped with a tether line that is used to supply control power to the vehicle drives and to deploy and retrieve the vehicle. Various collapsible tool members are operably attached to the vehicle for perf...
A mobile vehicle for use in an enclosed vessel having an opening therein comprising: a frame member movable between a first collapsed position wherein said frame member can enter the vessel through the opening therein and a second expanded position, said frame member comprising first and second side members and a pair of collapsible frame assemblies, each said collapsible frame assembly comprising two pivotally interconnected linkage members, one linkage member having one end thereof pivotally attached to said first side member and the other of said link...