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-037/00 G01F-011/00 |
미국특허분류(USC) | 222/82 ; 222/83 ; 222/207 ; 222/212 |
출원번호 | US-0705657 (1985-02-26) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 30 인용 특허 : 9 |
A vacuum pump dispenser has a primary compartment and a pumping compartment. The pumping compartment has an vacuum pump, having a flexible dome, movable to reduce the volume of the pumping compartment and dispense product therefrom, and a spout, having an opening through which product is dispensed, extending from the pumping compartment. The dispenser is self-sealing because the spout is sealed by a closure member having a sealing tip. The closure member is biased into a position where the tip closes the opening in the spout when the pumping compartment ...
A vacuum pump for a dispenser having a primary compartment containing product to be dispensed comprising: (a) means for defining a pumping compartment including a rigid base, generally cylindrical sidewall portion and movable means to reduce the volume of said compartment and dispense product therefrom; (b) a spout, extending radially from said sidewall portion, comprising a channel cut therethrough, an inner opening communicating with one end of the channel and the pumping compartment, and an outer opening, through which product is dispensed, communicat...