[특허]Liquid dispensing tap and liquid container provided therewith

Scholle IPN IP B.V.

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특허 상세정보

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Liquid dispensing tap and liquid container provided therewith

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67D-003/00 B67D-003/04 F16K-001/12 B65D-077/06
출원번호	US-0127016 (2015-02-19)
등록번호	US-10065849 (2018-09-04)
우선권정보	NL-2012469 (2014-03-18)
국제출원번호	PCT/NL2015/050102 (2015-02-19)
국제공개번호	WO2015/142164 (2015-09-24)
발명자 / 주소	Van Der Molen, Peter Jan Oosterling, Willem Jan Adriaan Van Tuil, Johannes Wilhelmus Murray, Christopher John
출원인 / 주소	Scholle IPN IP B.V.
대리인 / 주소	The Watson IP Group, PLC
인용정보	피인용 횟수 : 0 인용 특허 : 21

초록
▼

Liquid dispensing tap 1 connectable to a liquid container 70, e.g. a bag in box, for controlled dispensing of a liquid therefrom. The tap comprises a housing 10 forming an inlet of the tap and comprising a dispensing chamber wall portion 13 delimiting a dispensing chamber 14 with a valve seat 16 at an axial end and forming a lateral dispensing outlet 17 in communication with the dispensing chamber 14. The tap 1 comprises a plunger 30 with a stem 31 and a valve portion 32, the stem having an actuator engagement portion 33 outside said dispensing chamber and extending along an axis 15 through a bore 18 in the dispensing chamber wall portion and through the dispensing chamber. The plunger moves axially between a closed and an open position. A manually operable plunger actuator 50 engages said engagement portion of the stem to open the tap.

대표
청구항
▼

1. A liquid dispensing tap adapted to be connected to a liquid container, for controlled dispensing of a liquid from said container, the tap comprising: a housing comprising: a connector portion adapted to connect the tap to the liquid container and forming an inlet of the tap,a dispensing chamber wall portion delimiting a dispensing chamber having an axis, which dispensing chamber wall portion comprises a valve seat at an axial end thereof and forms a dispensing outlet of the tap in open communication with said dispensing chamber,a one piece molded plastic plunger having a valve portion that is integrally molded with a stem of the plunger, wherein the stem has an actuator engagement portion (33) outside said dispensing chamber and wherein the stem extends along said axis through a bore in said dispensing chamber wall portion and through the dispensing chamber, wherein the valve portion is embodied to cooperate with the valve seat, and wherein the plunger is axially movable between a closed position, wherein the tap is closed, and an open position, wherein the tap is open,a manually operable plunger actuator which engages said engagement portion of the stem of the plunger allowing a user to open the tap for dispensing of liquid,characterized in that the plunger has an integrally molded annular flexible sealing lip that extends around the stem, and in that the bore forms a cylinder along said axis, and wherein the sealing lip slides within and sealingly engages the cylinder in any operative position of the plunger within the cylinder, andwherein the bore has an end wall at one end of said cylinder, and wherein the bore has a guide sleeve adjoining said end wall, which guide sleeve is concentric with said cylinder and has an inner diameter smaller than an inner diameter of said cylinder, wherein the stem extends through said guide sleeve. 2. A tap according to claim 1, wherein the guide sleeve extends at least partially within said cylinder, and wherein said guide sleeve has a plunger stop end face, wherein the plunger has a corresponding stop portion, so that the plunger stop end face determines the closed position of the plunger. 3. A tap according to claim 2, wherein the stem has a small diameter section extending through said guide sleeve and large diameter section within the dispensing chamber, wherein the stem has a shoulder between said small and large diameter sections, and wherein said shoulder forms the stop portion of the plunger. 4. A tap according to claim 2, wherein the stem has a small diameter section extending through said guide sleeve and a large diameter section within the dispensing chamber, wherein the stem has a shoulder between said small and large diameter sections, and wherein the annular flexible sealing lip extends from said shoulder, concentrically about the small diameter section of the stem. 5. A tap according to claim 2, wherein the valve seat has a substantially cylindrical valve seat surface, and wherein the valve portion is embodied as a dish with a flexible peripheral rim that is primarily compressed in radial direction when contacting said valve seat surface. 6. A tap according to claim 1, wherein the stem is hollow with an open end at the side of the valve portion and a blind end at the side of the engagement portion. 7. A liquid dispensing tap adapted to be connected to a liquid container for controlled dispensing of a liquid from said container, the tap comprising: a housing comprising: a connector portion adapted to connect the tap to the liquid container and forming an inlet of the tap,a dispensing chamber wall portion delimiting a dispensing chamber having an axis, which dispensing chamber wall portion comprises a valve seat at an axial end thereof and forms a dispensing outlet of the tap in open communication with said dispensing chamber,a one piece molded plastic plunger having a valve portion that is integrally molded with a stem of the plunger, wherein the stem has an actuator engagement portion outside said dispensing chamber and wherein the stem extends along said axis through a bore in said dispensing chamber wall portion and through the dispensing chamber, wherein the valve portion is embodied to cooperate with the valve seat, and wherein the plunger is axially movable between a closed position, wherein the tap is closed, and an open position, wherein the tap is open,a manually operable plunger actuator which engages said engagement portion of the stem of the plunger allowing a user to open the tap for dispensing of liquid,characterized in that the plunger has an integrally molded annular flexible sealing lip that extends around the stem, and in that the bore forms a cylinder along said axis, and wherein the sealing lip slides within and sealingly engages the cylinder in any operative position of the plunger within the cylinder, andwherein the dispensing chamber wall portion is provided with multiple guide fingers that extend axially away from the valve seat in the direction of the open position of the plunger, which guide fingers each have a free end remote from the valve seat, wherein the guide fingers guide and support the valve portion as the plunger is moved between the closed and open position thereof, wherein—in the open position—liquid ports are exposed between the fingers allowing passage of liquid from the inlet into the dispensing chamber. 8. A tap according to claim 7, wherein the guide fingers each have a guide face with a curvature corresponding to a curvature of the guided valve portion. 9. A tap according to claim 1, wherein the housing has an outer wall portion forming an exterior of the tap, and wherein the dispensing chamber wall portion forms the valve seat within and radially spaced from said outer wall portion. 10. A tap according to claim 1, wherein the actuator is a manually depressable push button, that is exposed to allow operation by a user 's finger. 11. A tap according to claim 10, wherein the push button comprises a collar having an outer diameter, which collar is snap fitted over a head forming the engagement portion of the stem of the plunger, wherein the collar has an end forming a stop face, and wherein the housing has —at said bore —an abutment portion that cooperates with said stop face of the collar to define the open position of the plunger, and wherein the housing has —at said bore —a recessed cavity into which the collar enters when the plunger moves in the open position thereof, and wherein the recessed cavity is embodied as a locking cavity which has a diameter corresponding to the diameter of the collar such that the collar is unable to disengage from the head when entered into the locking cavity. 12. A tap according to claim 1, wherein the actuator comprises a resilient biasing member providing a biasing force on the plunger urging the plunger to the closed position thereof.

이 특허에 인용된 특허 (21)

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Liquid dispensing tap and liquid container provided therewith

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이 특허에 인용된 특허 (21)

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Liquid dispensing tap and liquid container provided therewith

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이 특허에 인용된 특허 (21)

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