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) | B64B-001/06 |
미국특허분류(USC) | 244/030; 244/125 |
출원번호 | US-0212632 (2002-08-05) |
발명자 / 주소 | |
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 27 인용 특허 : 2 |
An airship for lifting and transporting loads, particularly heavy loads. The lifting ability of the airship is given by lighter than air gas contained in bags located between two parallel horizontal platforms constructed in lightweight geodesic fashion, the platform and bag assembly being raised and lowered by means of respectively injecting and exhausting the gas into and from the bags, the whole, together with the lifted object, being moved and steered through the atmosphere by the combined means of conventional powered propeller units and a curtain ci...
An airship for lifting and transporting loads, particularly heavy loads. The lifting ability of the airship is given by lighter than air gas contained in bags located between two parallel horizontal platforms constructed in lightweight geodesic fashion, the platform and bag assembly being raised and lowered by means of respectively injecting and exhausting the gas into and from the bags, the whole, together with the lifted object, being moved and steered through the atmosphere by the combined means of conventional powered propeller units and a curtain ci...