[특허]Foam producing pump with anti-drip feature

Sayers,Richard C.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
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"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Foam producing pump with anti-drip feature

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05B-009/043 B05B-009/04
미국특허분류(USC)	222/137; 222/190; 222/145.2; 222/148; 222/321.9; 239/337
출원번호	US-0628126 (2003-07-28)
발명자 / 주소	Sayers,Richard C.
출원인 / 주소	Sayers,Richard C.
대리인 / 주소	Renner, Kenner, Greive, Bobak, Taylor &
인용정보	피인용 횟수 : 51 인용 특허 : 9

초록
▼

A pump including a pump body having a head assembly slidably received therein; a mixing chamber in communication with an air source and a liquid source; wherein the head assembly is movable relative to the pump body to define a pump stroke, wherein the head assembly urges air from the air supply and liquid from the liquid supply into the mixing chamber to form a foam during the pump stroke; wherein the mixing chamber opens externally of the pump body and wherein during a portion of the stroke less than a complete stroke, the mixing chamber receives fluid and air to form a foam and discharge the foam externally of the pump and wherein during the remainder of the stroke, a blowing charge from the air source is urged through the mixing chamber and externally of the pump to evacuate any residual foam in the pump.

대표
청구항
▼

What is claimed is: 1. A pump used in connection with a container filled with a liquid, the pump comprising: a) a pump body defining an air chamber and a liquid chamber separated by a seal; b) a cup slidably received within said pump body at said liquid chamber, said cup being in selective communication with the liquid, whereby said cup is filled with liquid when the pump is in an idle position; c) a head assembly slidably mounted within said pump body and sealingly engaging said air chamber; d) a plunger extending from said head assembly through said seal and into said cup and slidably received therein; and e) a mixing chamber in selective fluid communication with said liquid chamber and said air chamber, said mixing chamber opening externally of said head assembly, whereby operation of the pump causes liquid from the liquid chamber and air from the air chamber to mix in the mixing chamber to form a foam which is discharged from the head assembly; f) wherein said cup is spaced from an end of said pump body by a first spring adapted to urge said cup toward said plunger; g) wherein said plunger is adapted to bottom out in said cup to empty said liquid chamber; wherein said air chamber is sized to allow further inward movement of said head assembly after said plunger bottoms out, whereby said further inward movement of said head assembly compresses said spring and forces a blowing charge from said air chamber through said mixing chamber and said head assembly to evacuate any foam remaining therein. 2. The pump of claim 1, wherein said cup has a base, said base being spaced from said end of said pump body and wherein said spring is located between said end and said base. 3. The pump of claim 1, wherein said cup includes a valve adapted to selectively allow liquid from the container to fill said liquid chamber. 4. The pump of claim 3, wherein said cup includes a base defining an opening in communication with the liquid; wherein said valve is seated in said base and axially slidable relative thereto, said valve including a stem portion and a head portion extending radially outward thereto to cover said opening. 5. The pump of claim 4, wherein said head portion of said valve includes a flexible flange adapted to flex outwardly from said base in said cup when a negative pressure is formed within said cup by said plunger. 6. The pump of claim 1, wherein said plunger includes a hollow shaft extending outwardly from said mixing chamber and a sleeve mounted on said shaft, wherein said sleeve slidably engages an inner surface of said cup, wherein said shaft defines a port opening outward from said bore; wherein said sleeve is positioned over said port and slidable on said shaft to expose said port to said fluid as said plunger is driven into said liquid chamber, whereby liquid from said liquid chamber travels through said port and said bore toward said mixing chamber. 7. The pump of claim 1 further comprising a screen mounted downstream of said mixing chamber whereby the foam exiting said mixing chamber passes through said screen. 8. The pump of claim 1, wherein selective fluid communication between the air chamber and the mixing chamber is controlled by a first valve and a second valve, said first valve being in communication with said air chamber and a vent opening externally of the pump, said second valve being in fluid communication with said air chamber and said mixing chamber, wherein said first and second valves are flexible, wherein inward movement of said head assembly pressurizes said air chamber flexing said first valve to a closed position and said second valve to an open position allowing air from said air chamber to be directed to said mixing chamber and whereby a negative pressure within said air chamber causes said first valve to flex open allowing air from outside of the pump to enter said air chamber. 9. The pump of claim 1 further comprising a second spring operatively engaging said pump body and said head assembly, whereby said second spring urges said head assembly outward from said pump body. 10. The pump of claim 9, wherein said first spring has a greater compression strength than said second spring. 11. A pump used in connection with a container filled with a liquid, the pump comprising: a pump body defining an air chamber; a cup housed within and moveable relative to said pump body, said cup defining a liquid chamber, said cup being in selective fluid communication with the container; a head assembly movable relative to the pump body and adapted to mix air from said air chamber and liquid from said liquid chamber, said mixture being dischargeable through a nozzle during a portion of a single pump stroke; a spring biasing said liquid chamber toward said head, such that movement of said head during said pump stroke evacuates said liquid chamber before evacuating all of the air in said air chamber, whereby compression of said spring during the remainder of said pump stroke discharges air from said air chamber through said nozzle.

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (51)

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Foam producing pump with anti-drip feature

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (51)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Foam producing pump with anti-drip feature

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (51)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼