CHEMICALS MIXING CONTAINER WITH OFFSET COMMUNICATING HOLES

• US 20110005945A1
• Filed: 08/16/2007
• Published: 01/13/2011
• Est. Priority Date: 08/16/2007
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Shofu
• Original Assignee: Kabushiki Kaisha Shofu
• Inventors: Takano, Satoshi, Nakatsuka, Toshiyuki, Kadobayashi, Yusei
• Granted Patent: US 8,074,794 B2
• Time in Patent Office: Days
• US Class Current: 206/219
• CPC Class Codes: B65D 81/3211 coaxially and provided with means facilitating admixture
• CPC Class Codes: B65D 81/3255 Containers provided with a piston or a movable bottom, and permitting admixture within the container
• CPC Class Codes: B65D 83/0005 Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container B65D83/0072 takes precedence

Abstract

A chemicals mixing container 1 of the invention, which allows two kinds of chemicals, a liquid material 2 and a powder material 4, to be stored therein in isolation from each other and which allows the liquid material 2 and the powder material 4 to be mixed together with reliability at a time of use, includes: a first cylinder 6; a first piston 7 which is fitted in the first cylinder 6 to define a first internal space 3; a second cylinder 8 which is connected to the first cylinder 6 or the first piston 7 so as to be rotationally slidable thereon; and a second piston 9 which is fitted in the second cylinder to define a second internal space 5. The second cylinder 8 and the first cylinder 6 or the first piston 7 to which the second cylinder 8 is connected have communicating holes 13, 14 formed in their mutual sliding surfaces at positions, respectively, eccentric to a rotation axis X, and the first internal space 3 and the second internal space 5 are communicated with or isolated from each other depending on a rotational sliding angle between the second cylinder 8 and the first cylinder 6 or the first piston 7 to which the second cylinder 8 is connected.

Claims

1. A chemicals mixing container comprising:

a first cylinder;

a first piston which is fitted in the first cylinder to define a first internal space;

a second cylinder which is connected to the first cylinder or the first piston so as to be rotationally slidable thereon; and

a second piston which is fitted in the second cylinder to define a second internal space, wherein

the second cylinder and the first cylinder or the first piston to which the second cylinder is connected have communicating holes formed in their mutual sliding surfaces at positions, respectively, eccentric to a rotation axis, and the first internal space and the second internal space are communicated with or isolated from each other depending on a rotational sliding angle between the second cylinder and the first cylinder or the first piston to which the second cylinder is connected.

2. The chemicals mixing container as claimed in claim 1, wherein the first cylinder and the second cylinder are formed into generally cylindrical and concentric shapes.

3. The chemicals mixing container as claimed in claim 1, further comprising a rotation restricting structure for restricting a relative rotational range of the second cylinder and the first cylinder or the first piston to which the second cylinder is connected so that their respective communicating holes are communicated with each other at an end of the rotational range.

4. The chemicals mixing container as claimed in claim 1, wherein

the first cylinder is formed into a cylindrical shape having an end wall,

the first piston is formed into a cylindrical shape having an end wall which defines the first internal space in the first cylinder,

the second cylinder is formed into a cylindrical shape having an end wall which is fitted inside the first piston and which slides in contact with the end wall of the first piston, and

the communicating holes are formed in the end wall of the first piston and the end wall of the second cylinder, respectively.

5. The chemicals mixing container as claimed in claim 2, further comprising a rotation restricting structure for restricting a relative rotational range of the second cylinder and the first cylinder or the first piston to which the second cylinder is connected so that their respective communicating holes are communicated with each other at an end of the rotational range.