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 |
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국제특허분류(IPC7판) | F16K-003/02 F16K-003/312 F16K-025/00 |
미국특허분류(USC) | 137/240 ; 126/285A ; 138/943 ; 251/174 |
출원번호 | US-0053136 (1987-05-21) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 7 인용 특허 : 0 |
A damper mechanism of the slide gate type includes two curved seal segments positioned in back-to-back abutting relation to function as the primary flue seal. A seal door when closed extends between the upper ends of the seal segments and applies compression to the spaced appart ends to form, in combination with the seal segments, a closed chamber which functions as a secondary seal. Means are provided for applying a thrust force to the upper end of one of the seal segments to move that seal segment into abutting relation with the other seal segment when...
A damper mechanism comprising: (a) first and second curved seal segments of resilient material positioned in opposing back-to-back relationship; (b) a slide gate adapted for sliding insertion between, and withdrawal from between, said curved seal segments; (c) a seal door pivotally mounted adjacent said first seal segment and so positioned that upon pivotal movement toward a closed position said door comes into engagement with said first seal segment and only applies a thrust force thereto to move said first seal segment toward and into abutting and seal...