US 8,523,474 B2Granted

Liquid dispensing device with ratchet mechanism

AssigneeAllen & Thomas Cosmetic Accessories Co., Ltd.

InventorLi-Mei Liu

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Abstract

A liquid dispensing device with ratchet is provided with a container, a transmission assembly, a dispensing assembly, and a cap. A pulling of the cap away from the container bounces a carrier and unblocks an inlet opening. A further turning of the sleeve toward a predetermined direction co-rotates both the rotation ring and the externally threaded pipe to move the plunger toward bottom of the container along the externally threaded pipe in order to push the liquid to flow to the application head via the channel, the inlet opening, and the passage.

Claims6

Dependent claims

A liquid dispensing device comprising:

a container comprising a space for containing a quantity of liquid, and a pawl member on a projecting opening;
a transmission assembly disposed in the space and comprising a sleeve, a rotation ring fastened in the sleeve, an externally threaded pipe, and an internally threaded plunger wherein the rotation ring comprises a ratchet wheel, the sleeve is rotatably secured onto the container by engaging the ratchet wheel with the pawl member, one bare end of the externally threaded pipe is partially retained in the rotation ring, the plunger is engagement secured to the externally threaded pipe, and the externally threaded pipe comprises an axial channel;
a dispensing assembly comprising a hollow mounting member, an elongated hollow carrier, an application head, and an exterior case wherein the mounting member is partially disposed in the sleeve and comprises an inlet opening at one end, the carrier comprises an axial passage and is capable of axially moving in the mounting member in a predetermined range, and the application head is partially anchored in both the carrier and the exterior case which is disposed at one end of the carrier distal the mounting member;
and
a cap comprising a capping section on an inner surface proximate its open end and a locking section extending inward from the capping section distal the open end wherein in a closed state of the container, a forward portion of the sleeve is lockingly, sealingly concealed by the capping section and the carrier is lockingly, sealingly concealed by the locking section;
wherein in the closed state of the container the inlet opening is blocked;
wherein a pulling of the cap away from the container bounces the carrier outward due to removal of a force exerted by the locking section on the carrier, and unblocks the inlet opening;
and
wherein a turning of the sleeve toward a predetermined direction co-rotates both the rotation ring and the externally threaded pipe to move the plunger toward bottom of the container along the externally threaded pipe in order to push the liquid to flow to the application head via the channel, the inlet opening, and the passage.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

A liquid dispensing device comprising:

a container comprising a space for containing a quantity of liquid, and a pawl member on a projecting opening;
a transmission assembly disposed in the space and comprising a sleeve, a rotation ring fastened in the sleeve, an externally threaded pipe, and an internally threaded plunger wherein the rotation ring comprises a ratchet wheel, the sleeve is rotatably secured onto the container by engaging the ratchet wheel with the pawl member, one bare end of the externally threaded pipe is partially retained in the rotation ring, the plunger is engagement secured to the externally threaded pipe, and the externally threaded pipe comprises an axial channel;
a dispensing assembly comprising a hollow mounting member, an elongated hollow carrier, an application head, and an exterior case wherein the mounting member is partially disposed in the sleeve and comprises an inlet opening at one end, the carrier comprises an axial passage and is capable of axially moving in the mounting member in a predetermined range, and the application head is partially anchored in both the carrier and the exterior case which is disposed at one end of the carrier distal the mounting member;
and
a cap comprising a capping section on an inner surface proximate its open end and a locking section extending inward from the capping section distal the open end wherein in a closed state of the container, a forward portion of the sleeve is lockingly, sealingly concealed by the capping section and the carrier is lockingly, sealingly concealed by the locking section;
wherein in the closed state of the container the inlet opening is blocked;
wherein a pulling of the cap away from the container bounces the carrier outward due to removal of a force exerted by the locking section on the carrier, and unblocks the inlet opening;
and
wherein a turning of the sleeve toward a predetermined direction co-rotates both the rotation ring and the externally threaded pipe to move the plunger toward bottom of the container along the externally threaded pipe in order to push the liquid to flow to the application head via the channel, the inlet opening, and the passage.

6 more elements