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) | B65D-051/16 F16K-017/12 F16K-021/08 |
미국특허분류(USC) | 137/529 ; 137/532 ; 137/539 ; 220/202 |
출원번호 | US-0585611 (1975-06-10) |
우선권정보 | UK-0026154 (1974-06-12) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 2 인용 특허 : 0 |
A liquid fuel filler cap provided with a valve assembly in a channel extending through said cap said valve assembly comprising means defining at least part of a channel, a valve seat in said channel, a valve member adapted to co-operate with said valve seat to seal said channel, and means to bias said valve member into engagement with said seat, said biasing means comprising a pivoted member comprising a first portion which is adapted to move said valve member, and a second portion, and means for engaging with said second portion and for imparting a turn...
A valve assembly for automatically relieving the partial vacuum in an unvented tank or container caused by withdrawing the fluid contents therefrom, said valve assembly comprising: means defining a channel, the outer end of said channel in open communication with the atmosphere and the inner end in open communication with the tank interior, a valve seat disposed within the channel, a valve member cooperative with said valve seat to seal the channel, and biasing means to bias said valve member into engagement with the valve seat, comprising a pivoted memb...