IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0424655
(1982-09-27)
|
우선권정보 |
DE-0038264 (1981-12-31) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
3 |
초록
▼
A dispenser for flowable substances with an elastically resilient squeeze head arranged on a dispenser housing has a valve nozzle-opening. A suction tube extends from the bottom of the squeeze head down to the bottom of the dispenser housing, the tube having an opening communicating with the interio
A dispenser for flowable substances with an elastically resilient squeeze head arranged on a dispenser housing has a valve nozzle-opening. A suction tube extends from the bottom of the squeeze head down to the bottom of the dispenser housing, the tube having an opening communicating with the interior of the squeeze head, and a non-return valve for closing the opening.
대표청구항
▼
1. In a dispenser for flowable substances including, an elastically resilient squeeze head having a valve nozzle-opening and a bottom for said squeeze head, said bottom forming a part of a cup shaped dispenser housing cap arranged on a dispenser housing, and a suction tube extending from an opening
1. In a dispenser for flowable substances including, an elastically resilient squeeze head having a valve nozzle-opening and a bottom for said squeeze head, said bottom forming a part of a cup shaped dispenser housing cap arranged on a dispenser housing, and a suction tube extending from an opening in the squeeze-head bottom to a bottom portion of the dispenser housing connecting the bottom portion of the dispenser housing to the squeeze head via a non-return valve, the improvement wherein: the dispenser housing cap has an offset step-shaped wall including an upper circumferential wall section of relatively smaller cross section which extends into the squeeze head; the squeeze-head bottom opening is formed through a nipple having a projected portion which projects from the squeeze-head bottom in a direction into the dispenser housing, said nipple continuing above said squeeze head bottom on a squeeze-head side thereof to an end of said nipple; said non-return valve comprises a flutter valve connected to said nipple; an upper section of said upper circumferential wall section of said cap is formed with an external tooth profiling constituting means for form-interlocking overlapping engagement with an edge section of said squeeze head; an upper, substantially cylindrical section of said dispenser housing continues into a neck portion thereof, the latter being formed with an outer thread engaging said cap, the latter constituting a screw cap; said screw cap further defines an air equalization opening in a region of a step of said offset step-shaped wall of said cap; and an upper cap is positionable over said screw cap, closing said air equalization opening from the outside. 2. The dispenser according to claim 1, wherein said dispenser housing at its top forms an edge defining a mouth opening, said tooth profiling is located in a region of said step, an opposite, interior wall of said step rests in sealing manner against said edge of said mouth opening of said dispenser housing. 3. In a dispenser for flowable substances including, an elastically resilient squeeze head having a valve nozzle-opening and a bottom for said squeeze head, said bottom forming a part of a cup shaped dispenser housing cap arranged on a dispenser housing, and a suction tube extending from an opening in the squeeze-head bottom to a bottom portion of the dispenser housing connecting the bottom portion of the dispenser housing to the squeeze head via a non-return valve, the improvement wherein: the dispenser housing cap has an offset step-shaped wall including an upper circumferential wall section of relatively smaller cross section which extends into the squeeze head; the squeeze-head bottom opening is formed through a nipple having a projecting portion which projects from the squeeze-head bottom in a direction into the dispenser housing, said nipple continuing above said squeeze head bottom on a squeeze-head side thereof to an end of said nipple; said non-return valve comprises a flutter valve connected to said nipple; said squeeze head is made of elastic material and further comprises: on a side opposite said valve nozzle-opening, a single gusset-shaped transverse fold forming a point. 4. The dispenser according to claim 3, wherein said nipple and said flutter valve are formed integrally of the same material. 5. The dispenser according to claim 3, wherein said flutter valve is seated on an upper edge of the end of said nipple. 6. The dispenser according to claim 3, wherein said point of said fold extends adjacent said non-return valve and is directed towards said valve nozzle-opening of said squeeze head. 7. The dispenser according to claim 1, wherein said air equalization opening consists of a bore in said first-mentioned cap directly communicating the outside with the inside of said dispenser housing, said bore is spaced from said tooth profiling and said outer thread. 8. The dispenser according to claim 7, wherein said bore is in said upper circumferential wall section and has an axis transverse to that of said nipple. 9. The dispenser according to claim 1, wherein said nipple and said flutter valve are formed integrally of the same material. 10. The dispenser according to claim 1, wherein said flutter valve is seated on an upper edge of the end of said nipple. 11. The dispenser according to claim 1, wherein said suction tube is placed over said projecting portion of said nipple. 12. The dispenser according to claim 1, wherein said bottom of said squeeze head is non-deformable. 13. In a dispenser for flowable substances including, an elastically resilient squeeze head having a valve nozzle-opening and a bottom for said squeeze head, said bottom forming a part of a cup shaped dispenser housing cap arranged on a dispenser housing, and a suction tube extending from an opening in the squeeze-head bottom to a bottom portion of the dispenser housing connecting the bottom portion of the dispenser housing to the squeeze head via a non-return valve, the improvement wherein: the dispenser housing cap has an offset step-shaped wall including a step and an upper circumferential wall section of relatively smaller cross section which extends to the squeeze head; the squeeze-head bottom opening is formed through a nipple having a projecting portion which projects from the squeeze-head bottom in a direction to the dispenser housing, said nipple continuing above said squeeze head bottom on a squeeze-head side thereof to an end of said nipple; said non-return valve comprises a flutter valve connected to said nipple; said cap further defines an air equalization opening in a region of said step of said offset step-shaped wall of said cap; and an upper cap is positionable over said dispenser housing cap, closing said air equalization opening from the outside. 14. The dispenser according to claim 13, wherein said air equalization opening is formed in said upper circumferential wall section of said dispenser housing cap. 15. The dispenser according to claim 13, wherein said upper cap has a lower edge sealingly engaging said step of said dispenser housing cap. 16. The dispenser according to claim 15, wherein said upper cap releasably is held in engagement with said edge section of said squeeze head. 17. The dispenser according to claim 13, wherein said dispenser housing at its top forms an edge defining a mouth opening, an opposite, interior wall of said step rests in sealing manner against said edge of said mouth opening of said dispenser housing. 18. The dispenser according to claim 16, wherein said dispenser housing at its top forms an edge defining a mouth opening, an opposite, interior wall of said step rests in sealing manner against said edge of said mouth opening of said dispenser housing. 19. The dispenser according to claim 13, wherein said air equalization opening consists of a bore in said first-mentioned cap directly communicating the outside with the inside of said dispenser housing. 20. In a dispenser for flowable substances including, an elastically resilient squeeze head having a valve nozzle-opening and a bottom for said squeeze head, said bottom arranged on a dispenser housing, and a suction tube extending from an opening in the squeeze-head bottom to a bottom portion of the dispenser housing connecting the bottom portion of the dispenser housing to the squeeze head via a non-return valve, the improvement wherein: the squeeze-head bottom opening is formed through a nipple having a projecting portion which projects from the squeeze-head bottom in a direction to the dispenser housing, said nipple continuing above said squeeze head bottom on a squeeze-head side thereof to an end of said nipple; said non-return valve comprises a flutter valve connected to said nipple; said squeeze head is made of elastic material and further comprises: on a side opposite said valve nozzle-opening, a single gusset-shaped transverse fold forming a point. 21. The dispenser according to claim 20, wherein said point of said fold extends adjacent said non-return valve and is directed towards said valve nozzle-opening of said squeeze head.
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