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) | B64D-027/24 |
미국특허분류(USC) | 244/62 ; 244/53R ; 244/58 ; 244/45R |
출원번호 | US-0776425 (1985-09-16) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 34 인용 특허 : 2 |
A high altitude, ultra lightweight aircraft has broad area relatively flat wings, and is provided with solar cells on its upper wing surfaces, and long wavelength, infrared responsive cells on its lower wing and fuselage surfaces, to provide enough power to maintain the aircraft aloft at high altitudes indefinitely. The aircraft is intended to fly at altitudes of about 60,000 feet to 110,000 feet, at speeds in the vicinity of 70 to 200 miles per hour. A battery or fuel cell and electrical system is provided to store excess electrical power and to supply ...
A high altitude, ultralight aircraft requiring no fuel comprising: an aircraft having wings with broad area upper and lower wing surfaces, a low speed propellor mounted on said aircraft; electric motor means mounted on said aircraft and coupled to drive said propellor; solar cell means for receiving solar energy and supplying electricity to power said motor means, said solar cell means being mounted on the upper surfaces of said wings; long wavelength infrared (LWIR) responsive cell means for receiving albedo infrared energy from the earth and for supply...