IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0597244
(2007-04-26)
|
등록번호 |
US-8356732
(2013-01-22)
|
국제출원번호 |
PCT/NL2007/000110
(2007-04-26)
|
§371/§102 date |
20091023
(20091023)
|
국제공개번호 |
WO2008/133491
(2008-11-06)
|
발명자
/ 주소 |
- van der Heijden, Edgar Ivo Maria
- Albertz, Peter Jozef Jan
- Boshuizen, Sylvia
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
The present invention relates to a dispensing device comprising: —a container (2) for holding a liquid having an opening, and—a dispensing assembly (4) mountable on or in said opening, said dispensing assembly comprising: —a pump (5) having a pump chamber (7) and a pump inlet (6) comprising an inlet
The present invention relates to a dispensing device comprising: —a container (2) for holding a liquid having an opening, and—a dispensing assembly (4) mountable on or in said opening, said dispensing assembly comprising: —a pump (5) having a pump chamber (7) and a pump inlet (6) comprising an inlet valve (9) and a pump outlet (8) comprising an outlet valve (10), and—a liquid supply channel (16), one end of said channel (16) being in fluid communication with said inlet (6), the other end being arranged in a bottom portion of said container (2), wherein a one-way valve (20) is arranged in said channel (16), and wherein an air inlet opening (17) is provided between said inlet valve (9) and said one-way valve.
대표청구항
▼
1. A dispensing device for dispensing a foam, comprising: a container for holding a liquid and having an opening, anda dispensing assembly mountable on or in said opening, said dispensing assembly comprising: a pump having a pump chamber and a pump inlet comprising an inlet valve and a pump outlet c
1. A dispensing device for dispensing a foam, comprising: a container for holding a liquid and having an opening, anda dispensing assembly mountable on or in said opening, said dispensing assembly comprising: a pump having a pump chamber and a pump inlet comprising an inlet valve and a pump outlet comprising an outlet valve, anda liquid supply channel, one end of said channel being in fluid communication with said pump inlet, the other end being arranged in a bottom portion of said container,wherein the dispensing device comprises a separate foam-forming device mounted on or in the pump inlet of the pump, defining at least a part of the liquid supply channel, said foam-forming device further comprising a one-way valve and defining at least partially an air inlet opening to the liquid supply channel, said air inlet opening being provided between said pump inlet and said one-way valve. 2. Dispensing device as claimed in claim 1, wherein said dispensing assembly comprises a dip tube defining at least a part of said channel. 3. Dispensing device as claimed in claim 1, wherein said foam-forming device is arranged between said pump inlet and said dip tube. 4. Dispensing device as claimed in claim 1, wherein said pump inlet comprises a tube shaped end comprising an inlet opening, the foam-forming device having a tube shaped top end to be arranged on or in said tube shaped end of said pump inlet. 5. Dispensing device as claimed in claim 4, wherein said tube shaped end of said pump inlet and/or said tube shaped top end of said foam-forming device comprises one or more grooves which define said air inlet opening. 6. Dispensing device as claimed in claim 3, wherein said foam-forming device comprises a tube shaped bottom end, wherein said one end of said dip tube is or is to be arranged on or in said tube shaped bottom end of said foam-forming device. 7. Dispensing device as claimed in claim 1, wherein said air opening is in fluid communication with a top portion of the interior of said container. 8. Dispensing device as claimed in claim 1, wherein a sponge or sponge-like material is arranged in said pump chamber. 9. Dispensing device as claimed in claim 1, wherein said one-way valve is arranged at or above half the height of said channel, preferably at or above 75% of the height of said channel. 10. Dispensing device as claimed in claim 1, wherein two or more air inlet openings are provided between said inlet valve and said one-way valve. 11. Dispensing device as claimed in claim 1, wherein two or more air inlet openings are provided in said channel. 12. Method for providing a foam dispensing device, comprising the steps of: providing a liquid dispensing device having: a container for holding a foamable liquid having an opening, anda dispensing assembly mounted or to be mounted on or in said opening, comprising a single liquid pump having a pump chamber and an inlet comprising an inlet valve and an outlet comprising an outlet valve, andmounting a separate foam-forming device on or in said inlet of said pump, said foam-forming device defining at least a part of a liquid supply channel to the inlet, said foam forming device comprising a one-way valve and defining at least partially an air inlet opening to the liquid supply channel, said air inlet opening being provided between said inlet valve and said one-way valve. 13. The method of claim 12, wherein the method further comprises arranging a dip tube in said dispensing device, one end of said dip tube being in fluid communication with said foam-forming device, the other end being arranged in a bottom portion of said container. 14. Foam-forming device mountable on or in an inlet of a liquid pump, defining, when mounted on the liquid pump, at least a part of a liquid supply channel to a pump inlet of the liquid pump, said foam-forming device further comprising a one-way valve and defining at least partially an air inlet opening to the liquid supply channel, said air inlet opening being provided between said inlet and said one-way valve.
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