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) | B65H-003/00 |
미국특허분류(USC) | 221/36 ; 221/210 ; 294/11 ; 294/992 |
출원번호 | US-0264386 (1988-10-31) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 12 인용 특허 : 8 |
A combined filter housing for storing a plurality of filters therein and a combination cover and extractor for the stored filters includes a unitary extractor mechanism with cooperating arms removably disposed within a cover extending above and below the cover into the housing where semi-adhesive resilient members disposed on a pair of distal ends comes into contact with the stored filters. By applying pressure proximate the apex of the arms the filter is engaged by the semi-adhesive resilient member and by removing the combination cover and extractor a ...
A combined filter housing and extractor therefor, which comprises, in combination: A. filter storage means capable of holding a plurality of filters therein, said storage means including a hollow housing means having an open end and a closed end; B. a cover means adapted to be received by and cooperate with said housing means open end for sealing said housing means open end, said cover being generally flat, provided with a top surface and a bottom surface and an elongated opening therein; and C. a removable extractor disposed within said cover elongated ...