IP Library Granted Patent US 12686531
Granted Patent B2
US 12686531 · App. 18/560,489 · Granted Jul 21, 2026

Liquid container and liquid container with content liquid

Inventors: Yusuke Ishii (Tokyo, JP); Hiromichi Saito (Tokyo, JP); Koji Watase (Tokyo, JP)
Assignee: YOSHINO KOGYOSHO CO., LTD.
B65D23/06B29C49/071B29C49/10B65D1/023B65D1/0246B65D25/42B65D25/54B65D41/565B65D47/122B29C2949/0715B29C2949/077B29C2949/0778B29C2949/0794B29L2031/7158
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Quick Facts
Patent No.
US 12686531
App. No.
18/560,489
Granted
Jul 21, 2026
Kind
B2
Abstract

A liquid container and a liquid container with content liquid are easy to sort and dispose of, while preventing dripping of the liquid from a nozzle to the outside. A liquid container includes a container body configured to compartmentally form an accommodation space for content liquid, a tubular nozzle configured to be connected to an upper portion of the container body and guide the content liquid to the outside, and a liquid recovery channel configured to return the content liquid on the radial outside of the nozzle into the accommodation space. The container body, the nozzle, and the liquid recovery channel are formed by integral molding.

Claims (38)

1 . A liquid container comprising:

a container body configured to compartmentally form an accommodation space for content liquid;

a tubular nozzle connected to an upper portion of the container body and configured to guide the content liquid to outside; and

a liquid recovery channel configured to return the content liquid radially outside of the nozzle into the accommodation space, wherein

the container body, the nozzle, and the liquid recovery channel are integrally molded, and

a bottom wall of the liquid recovery channel has a thinned portion that is recessed upward from a lower surface of the bottom wall, and each radial position in the lower surface of the bottom wall, except for the thinned portion, is horizontal around a respective circumference.

2 . The liquid container according to claim 1 , wherein the liquid recovery channel is inclined downward toward a circumferential direction, and a connecting passage that connects the liquid recovery channel with the accommodation space is at a lower end of the liquid recovery channel.

3 . The liquid container according to claim 1 , wherein a bottom wall of the liquid recovery channel has a thinned portion that is recessed upward from a lower surface of the bottom wall, and a thickness of the bottom wall at an area with the thinned portion is constant in a direction along the liquid recovery channel.

4 . The liquid container according to claim 1 , wherein an upper surface of a bottom wall of the liquid recovery channel is inclined downward from the radial outside to radial inside.

5 . The liquid container according to claim 1 , wherein an outer tube is formed on the radial outside of the nozzle, and the liquid recovery channel is formed at a radial position between the nozzle and the outer tube.

6 . The liquid container according to claim 1 , further comprising a cap configured to cover the nozzle from above,

wherein

the cap has a measuring tube in shape of a cylinder with a top, and

when the cap is attached, the measuring tube is disposed on a radial inside of the nozzle.

7 . The liquid container according to claim 6 , wherein when the cap is attached, a lower end of the measuring tube extends downward beyond the nozzle and is disposed inside the container body.

8 . The liquid container according to claim 6 , wherein

the container body includes a body portion configured to compartmentally form the accommodation space for the content liquid, a bottom portion configured to close a lower end of the body portion, and a neck portion configured to be connected to an upper end of the body portion and have a reduced diameter than the body portion, and

a radial distance between an outer peripheral surface of the measuring tube and an inner peripheral surface of the neck portion is 1 millimeter or more and 3 millimeters or less.

9 . The liquid container according to claim 6 , wherein the cap further includes an attachment tube configured to be attached to an outer peripheral wall of the liquid recovery channel, and a vertical distance from a lower end of the attachment tube to a lower end of the measuring tube is greater than a vertical distance from an upper end of the outer peripheral wall of the liquid recovery channel to an upper end of the nozzle.

10 . The liquid container according to claim 6 , wherein a radial width of the liquid recovery channel is 3 millimeters or more.

11 . A liquid container with content liquid comprising content liquid contained in the accommodation space in the liquid container according to claim 7 ,

wherein when the cap is attached, the lower end of the measuring tube is located, in the container body, inside a headspace in which no content liquid is contained.

12 . A liquid container comprising:

a container body configured to compartmentally form an accommodation space for content liquid;

a tubular nozzle connected to an upper portion of the container body and configured to guide the content liquid to outside; and

a liquid recovery channel configured to return the content liquid radially outside of the nozzle into the accommodation space, wherein

the container body, the nozzle, and the liquid recovery channel are integrally molded, wherein

a pouring groove that is recessed radially outward and extends to an upper end of a tube wall of the nozzle is at part of an inner peripheral surface of the tube wall of the nozzle in the circumferential direction,

an outer peripheral surface of the tube wall of the nozzle is located on a regular circle in plan view, and

an amount of a radially outward recess of the pouring groove increases, as well as a circumferential width of the pouring groove increases, as the pouring groove nears the upper end.

13 . A liquid container comprising:

a container body configured to compartmentally form an accommodation space for content liquid;

a tubular nozzle connected to an upper portion of the container body and configured to guide the content liquid to outside; and

a liquid recovery channel configured to return the content liquid radially outside of the nozzle into the accommodation space, wherein

the container body, the nozzle, and the liquid recovery channel are integrally molded, wherein

the liquid recovery channel is configured to return the content liquid on the radially outside of the nozzle into the accommodation space through a notch provided at part of the nozzle in a circumferential direction,

the container body and the liquid recovery channel have, at part in the circumferential direction, a vertical strip-shaped window portion through which the content liquid in the accommodation space is visible, and

a circumferential position of the notch contains a circumferential position of the window portion.