IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0597038
(2008-03-12)
|
등록번호 |
US-8240516
(2012-08-14)
|
우선권정보 |
FR-07 02965 (2007-04-24) |
국제출원번호 |
PCT/FR2008/050421
(2008-03-12)
|
§371/§102 date |
20091022
(20091022)
|
국제공개번호 |
WO2008/142308
(2008-11-27)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
5 |
초록
▼
A device for dispensing a liquid to a pasty product is placed at the open end of a rigid container and includes a manual dosing pump for dosing a predetermined amount of product to be dispensed. The device has a base member to be placed on the container, a push button with a dispensing spout capable
A device for dispensing a liquid to a pasty product is placed at the open end of a rigid container and includes a manual dosing pump for dosing a predetermined amount of product to be dispensed. The device has a base member to be placed on the container, a push button with a dispensing spout capable of a pumping action against a bellow including an opening-closing system formed at the upper end of the bellow. The opening-closing system includes a first inner peripheral collar formed at the upper end of the bellow and associated with a second collar of the bellow that is concentrically arranged relative to the first one and inserted in the same groove of the push button, wherein a locking tab capable of blocking the opening protrudes from the collar.
대표청구항
▼
1. A device for dispensing a liquid to pasty product intended to be installed at an open end of a rigid container and including a manual metering pump for delivering a predetermined amount of said product to be dispensed, comprising: a base element intended to be installed via a lower end on the con
1. A device for dispensing a liquid to pasty product intended to be installed at an open end of a rigid container and including a manual metering pump for delivering a predetermined amount of said product to be dispensed, comprising: a base element intended to be installed via a lower end on the container by an attachment means;a push button having a dispensing spout mounted telescopically on an upper part of the base element and capable of pump action with respect to the base element, against a return member comprising an elastically deformable bellows for a sealed connection between firstly an internal chamber of the base element, which internal chamber is open toward the container in order for the product to pass through an opening, and secondly, at an upper end of said bellows, an internal chamber of the push button into which a hole in the dispensing spout opens, which hole is linked to opening-closing means made at the upper end of said bellows; andsaid opening-closing means comprising a first internal peripheral collar made at the upper end of the bellows, said collar being housed in an internal annular groove in the push button forming a chamber, and bearing against one internal wall thereof so that said collar grips elastically with a predetermined force in such a way as to provide a seal or to be lifted radially under a certain pressure of the product contained therein when the bellows is compressed, and thus enable the product to be transferred into the annular groove, said first collar being linked to a second collar of the bellows, said second collar being concentric with the first collar, being housed in the annular groove of the push button but bearing against an external wall thereof, into which the hole of the dispensing spout opens, said second collar being of a height such as not to close off said hole, the hole being opened or closed by a concave locking tongue which is part of the second collar and has a height and a width at least sufficient to close off the hole by pressing against the hole, or to free up the hole during a rotary action, in one direction or another, on said push button with respect to the base element and as a result with respect to the bellows and to the locking tongue, which remain stationary. 2. The device as claimed in claim 1, wherein the bellows has a base that fits in a sealing manner against a bottom of the internal chamber of the base element, and has at least one angular indexing means which is stationary with respect to said base element and as a result with respect to the locking tongue thereof and the push button which is able to move. 3. The device as claimed in claim 2, wherein the indexing means of the bellows has at least one radial tooth made on the bottom of the internal chamber of the base element and intended to engage with a corresponding notch in a base of the bellows. 4. The device as claimed in claim 3, wherein the base of the bellows has three radial indexing notches preventing rotation and forming between each other angles at the center of 120°, 115° and 125°, fitting onto corresponding teeth in the internal chamber. 5. The device as claimed in claim 3, wherein the base element of the device has an indent on a bottom part of the base element for indexing the base element with respect to the locking tongue of the bellows. 6. The device as claimed in claim 1, wherein the push button has means for indexing with respect to the base element and as a result to the bellows and to said spout and said locking tongue which are stationary with respect to the base element. 7. The device as claimed in claim 6, wherein said indexing means comprises at least one axial rib made on the internal wall of the push button and intended to engage with a corresponding slot in an internal skirt of the base element delimiting the internal chamber thereof, and a peripheral housing with an external wall of said base element, said housing being intended to receive the internal wall of the push button and to enable said internal wall both to slide axially and to rotate inside said push button. 8. The device as claimed in claim 7, wherein the internal skirt of the base element has three slots intended to engage with three corresponding axial ribs of the push button in order to constitute the indexing means thereof, each at an angle of 120°. 9. The device as claimed in claim 8, wherein the height of the slots in the internal skirt is less than the height of the internal skirt, owing to sectorial indentations made therein, on the same side of each slot, and less than the height of the ribs of the push button, such that the push button can slide axially through a particular stroke into an open position, and thus a product pumping position, or such that said push button is locked closed in a high position following rotation in the direction of the indentations, putting bottom ends of the ribs of said push button into abutment against the indentations in the internal skirt. 10. The device as claimed in claim 9, wherein a top peripheral end of the internal skirt of the base element and a bottom peripheral end of the wall of the push button have snap-fastening means located in part on an outside of the internal skirt and in part on an inside of the push button such that the push button can execute an axial stroke and can be rotated when in the top position, while being retained axially on the base element. 11. The device as claimed in claim 1, wherein the first internal peripheral collar of the bellows, bearing against an internal wall of the groove in the push button, in which groove said bellows is housed, forms a convex geometry with respect to said internal wall, then a concave geometry before the product passes between said first collar and the internal wall of the groove in the push button before emerging through the spout thereof, and then becomes convex again when a positive pressure in the bellows ceases. 12. The device as claimed in claim 1, wherein said device has air intake means comprising of at least one vent comprising at least one axial groove made on part of a thread of the base element and intended to engage with a thread on the container, at least one radial groove in communication with the at least one axial groove and made beneath a wall of the internal chamber of the base element, axial passages made along generatrices of an axial shaft of the base element extending down into the container, said axial shaft having in a top part, next to the wall of the internal chamber, three bosses disposed peripherally and defining said passages between themselves, a deformable seal inserted between a base of a neck of the container and an underneath of the internal chamber of the base element having the at least one radial groove, said deformable seal having an internal diameter approximately equal to that in which the bosses are inscribed, leaving the passages free, and an external diameter such that the at least one axial groove of the thread of the base element is not blocked, such that outside ambient air is taken in without a break, first through the at least one axial groove, then the at least one radial groove, then the peripheral passages, and so into the container. 13. The device as claimed in claim 1, wherein the pump has constituent components made of plastic. 14. The device as claimed in claim 13, wherein the bellows is made of an elastically deformable plastic. 15. The device as claimed in claim 14, wherein the bellows is made of injection-moldable polyurethane. 16. The device as claimed in claim 14, wherein the bellows is made of a polypropylene-modified ethylene-propylene diene rubber. 17. The device as claimed in claim 14, wherein the bellows is made of a thermoplastic elastomer ether-ester. 18. The device as claimed in claim 14, wherein the bellows is made of a styrene-ethylene-butadiene-styrene styrene thermoplastic. 19. The device as claimed in claim 14, wherein the bellows is made of polyethylenes produced or modified to ensure liveliness and acceptable creep resistance. 20. The device as claimed in claim 1, further comprising a supplementary spring provided around the bellows.
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