Double-walled container

Patent metadata

Field	Value
Publication number	US-11008155-B2
Application number	US-201414780883-A
Country	US
Kind code	B2
Filing date	Mar 28, 2014
Priority date	Mar 29, 2013
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

A double container includes an outer layer body constituting an outer shell; an inner layer body including an upper opening communicating with a containing space, accommodated in the outer layer body, and deformable to undergo volume reduction; an inside plug including a tubular wall extending toward the containing space, a spherical body serving as a valve body being disposed inside the tubular wall; and a dispensing plug fitted to a mouth portion of the outer layer body and including a dispensing tube connected to the tubular wall. The tubular wall includes an inclined wall having a diameter decreasing toward the containing space and configured to abut against the spherical body over an entire circumference and including a protruding wall protruding from the inclined wall to the containing space. The protruding wall includes a liquid holding member holding a pool of liquid medium of the content formed below the spherical body.

First claim

The invention claimed is:

1. A double container, comprising:
an outer layer body serving as an outer shell of the double container;
an inner layer body (i) that includes an upper opening communicating with a containing space configured to hold content of the double container, (ii) that is accommodated in the outer layer body, and (iii) that is deformable to undergo volume reduction;
an inside plug, located in the upper opening, that includes a tubular wall extending toward the containing space, a spherical body serving as a valve body being disposed inside the tubular wall; and
a dispensing plug, fitted to a mouth portion of the outer layer body to cover the inside plug, that includes a dispensing tube connected to the tubular wall, wherein:
the tubular wall includes an inclined wall, configured to abut against the spherical body over an entire circumference, that has a diameter decreasing toward the containing space,
the tubular wall also includes a cylindrical protruding wall protruding from the inclined wall to the containing space,
the protruding wall including a liquid holding member configured to hold a pool of a liquid medium of the content formed below the spherical body, and
the liquid holding member comprises a plurality of ribs extending from the protruding wall to the containing space.

2. The double container of claim 1 , wherein the plurality of ribs are arranged at an equal interval in a circumferential direction of the tubular wall.

3. A double container, comprising:
an outer layer body serving as an outer shell of the double container;
an inner layer body (i) that includes an upper opening communicating with a containing space configured to hold content of the double container, (ii) that is accommodated in the outer layer body, and (iii) that is deformable to undergo volume reduction;
an inside plug, located in the upper opening, that includes a tubular wall extending toward the containing space, a spherical body serving as a valve body being disposed inside the tubular wall; and
a dispensing plug, fitted to a mouth portion of the outer layer body to cover the inside plug, that includes a dispensing tube connected to the tubular wall, wherein:
the tubular wall includes an inclined wall, configured to abut against the spherical body over an entire circumference, that has a diameter decreasing toward the containing space,
the tubular wall also includes a cylindrical protruding wall protruding from the inclined wall to the containing space, the protruding wall including a liquid holding member configured to hold a pool of a liquid medium of the content formed below the spherical body, and
the liquid holding member comprises, spaced from the spherical body, a stepped portion provided on an inner circumferential surface of the protruding wall.

4. The double container of claim 3 , wherein the stepped portion has an annular or a helical shape extending in a circumferential direction of the protruding wall.

5. The double container of claim 3 , wherein the stepped portion is provided intermittently in a circumferential direction of the protruding wall.

Assignees

• Abe Takayuki
• Furusawa Mitsuo
• Yoshino Kogyosho Co Ltd

Inventors

• Abe Takayuki
• Furusawa Mitsuo

Classifications

• B65D83/771 Primary

  for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm · CPC title

• B65D49/02

  One-way valves · CPC title

• B65D47/0842

  consisting of a strap of flexible material · CPC title

• B65D21/08

  Containers of variable capacity (containers of polygonal cross-section adapted to be of variable capacity formed by folding or erecting blanks made of paper {B65D5/0005}) · CPC title

• A45D40/00

  Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks (features common to containers for handling powdery or liquid toiletry or cosmetic substances A45D33/00-A45D37/00; cosmetic or like preparations A61K8/00, A61Q; sample tables or the like G09F5/00) · CPC title