Cap

Patent metadata

Field	Value
Publication number	US-10308403-B2
Application number	US-201615757664-A
Country	US
Kind code	B2
Filing date	Sep 6, 2016
Priority date	Sep 7, 2015
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A cap includes a main unit fit onto the mouth of a double-walled container, a spout cylinder provided on the main unit, an inner stopper that is provided in the main unit, and a first inner valve. The inner stopper includes a communicating part that communicates with the inside of the inner container and the inside of the spout cylinder. The first inner valve includes a first valve body that covers the communicating part. The first valve body has passage holes. The first valve body being deformed from a closing position S toward an opening position O keeps acting as a partition between the communicating part and the spout cylinder.

First claim

What is claimed is:

1. A container assembly comprising a cap attached to a mouth of a double-walled container having a deformable inner container and a deformable outer container, the cap comprising:
a main unit attached to the mouth of the double-walled container;
a spout cylinder provided on the main unit;
a lid that opens and closes a spout formed at a tip end of the spout cylinder;
an inner stopper that is provided in the main unit so as to be fit into the mouth of the double-walled container; and
a first inner valve retained in the main unit,
wherein the inner stopper includes a communicating part that communicates with an inside of the inner container and an inside of the spout cylinder,
the first inner valve includes a first valve body that covers the communicating part of the inner stopper;
the first valve body has at least one passage hole,
the first valve body is deformable to an opening position where the first valve body deforms into the spout cylinder in an opening direction and to a closing position where the first valve body retracts opposite to the opening direction, the first valve body being biased in a closing direction,
the first valve body at the closing position acts as a partition between the communicating part of the inner stopper and the spout cylinder,
the first valve body at the opening position causes the communicating part of the inner stopper and the spout cylinder to communicate with each other through the at least one passage hole of the first valve body, and
the first valve body being deformed from the closing position toward the opening position keeps acting as a partition between the communicating part of the inner stopper and the spout cylinder,
wherein the communicating part is an inner cylinder with one end communicating with the inside of the inner container and the other end communicating with the inside of the spout cylinder,
the first valve body covers an opening of the inner cylinder,
the first valve body is deformable to the closing position where the first valve body retracts concavely into the inner cylinder and to the opening position where the first valve body deforms convexly into the spout cylinder,
the first valve body at the closing position acts as a partition between the inside of the inner cylinder and the inside of the spout cylinder,
the first valve body at the opening position causes the inside of the inner cylinder and the inside of the spout cylinder to communicate with each other through the passage hole of the first valve body, and
the first valve body being deformed from the closing position toward the opening position keeps acting as a partition between the inside of the inner cylinder and the inside of the spout cylinder, and
wherein the spout cylinder includes a storage part that stores the first valve body and a spout passage that communicates with the spout from the storage part,
the spout passage has a smaller diameter than the storage part,
the passage hole includes multiple passage holes formed on a circumference of the first valve body facing the end of the inner cylinder, and
the spout cylinder has a guide surface that is formed so as to guide, to the spout passage, a fluid having flown to the storage part in the spout cylinder from the inside of the inner cylinder through the passage holes.

2. A container assembly comprising a cap attached to a mouth of a double-walled container having a deformable inner container and a deformable outer container, the cap comprising:
a main unit attached to the mouth of the double-walled container;
a spout cylinder provided on the main unit;
a lid that opens and closes a spout formed at a tip end of the spout cylinder;
an inner stopper that is provided in the main unit so as to be fit into the mouth of the double-walled container; and
a first inner valve retained in the main unit,
wherein the inner stopper includes a communicating part that communicates with an inside of the inner container and an inside of the spout cylinder,
the first inner valve includes a first valve body that covers the communicating part of the inner stopper;
the first valve body has at least one passage hole,
the first valve body is deformable to an opening position where the first valve body deforms into the spout cylinder in an opening direction and to a closing position where the first valve body retracts opposite to the opening direction, the first valve body being biased in a closing direction,
the first valve body at the closing position acts as a partition between the communicating part of the inner stopper and the spout cylinder,
the first valve body at the opening position causes the communicating part of the inner stopper and the spout cylinder to communicate with each other through the at least one passage hole of the first valve body, and
the first valve body being deformed from the closing position toward the opening position keeps acting as a partition between the communicating part of the inner stopper and the spout cylinder,
wherein the communicating part is an inner cylinder with one end communicating with the inside of the inner container and the other end communicating with the inside of the spout cylinder,
the first valve body covers an opening of the inner cylinder,
the first valve body is deformable to the closing position where the first valve body retracts concavely into the inner cylinder and to the opening position where the first valve body deforms convexly into the spout cylinder,
the first valve body at the closing position acts as a partition between the inside of the inner cylinder and the inside of the spout cylinder,
the first valve body at the opening position causes the inside of the inner cylinder and the inside of the spout cylinder to communicate with each other through the passage hole of the first valve body, and
the first valve body being deformed from the closing position toward the opening position keeps acting as a partition between the inside of the inner cylinder and the inside of the spout cylinder, and
wherein the first valve body has a protrusion that is circumferentially pressed to the end of the inner cylinder at the closing position,
the passage hole is located outside the protrusion in a radial direction of the first valve body,
the first valve body at the closing position presses the protrusion to the end of the inner cylinder so as to act as a partition between the inside of the inner cylinder and the inside of the spout cylinder,
the first valve body at the opening position separates the protrusion from the end of the inner cylinder, causing the inside of the inner cylinder and the inside of the spout cylinder to communicate with each other through the passage holes of the first valve body, and
the first valve body being deformed from the closing position toward the opening position presses the protrusion to the end of the inner cylinder so as to keep acting as a partition between the inside of the inner cylinder and the inside of the spout cylinder.

3. A container assembly comprising a cap attached to a mouth of a double-walled container having a deformable inner container and a deformable outer container, the cap comprising:
a main unit attached to the mouth of the double-walled container;
a spout cylinder provided on the main unit;
a lid that opens and closes a spout formed at a tip end of the spout cylinder;
an inner stopper that is provided in the main unit so as to be fit into the mouth of the double-walled container; and
a first inner valve retained in the main unit,
wherein the inner stopper includes a communicating part that communicates with an inside of the inner container and an inside of the spout cylinder,
the first inner valve includes a first valve body that covers the communicating part of the inner stopper;
the first valve body has at lea

Assignees

• Mikasa Ind Co Ltd
• Kikkoman Corp

Inventors

• Hashimoto Takehisa
• Miura Eisuke
• Hori Hirotaka
• Sakanoue Aya
• Mori Hiroaki
• Kuwagaki Denmi

Classifications

• B65D2205/02

  Venting holes · CPC title

• B65D47/0838

  located at an edge of the base element · CPC title

• B65D47/2081 Primary

  in which the deformation raises or lowers the valve port · CPC title

• B65D41/04

  Threaded or like caps or cap-like covers secured by rotation · CPC title

• B65D47/40

  with drip catchers or drip-preventing means · CPC title