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" |
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B63H-011/117 |
미국특허분류(USC) | 440/043 |
출원번호 | US-0627482 (2003-07-24) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 0 인용 특허 : 3 |
A braking system for a personal water craft which is activated when a high velocity water jet is cut off. The braking system is comprised of a planar member attached to a rear portion of the water craft. The braking member is movable to an elevated non-operative position during a discharge of the high velocity water jet and to a lowered operative position during a cut off of the water jet. In a first embodiment of the invention, the planar braking member is automatically movable to the operative position and to the non-operative position. In a second emb...
1. An emergency braking system which is activated when a high velocity water jet of a PWC is cut-off, said braking system comprising: a rearward extending upwardly inclined planar braking member mounted on a rudder at a rear portion of said water craft, said braking member being movable with said rudder from an elevated non-operative position to a lowered submerged operative position for generating braking forces when said water jet is cut off; a means for elevating said rudder and braking member to said elevated non-operative position during a normal op...