# US 2021/0276785 A1 · Airless type mixing container for two kinds of contents capable of discharging all contents

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0276785 A1
- Document ID: US20210276785A1
- Status: Published application
- Kind: A1
- Application number: 17/139,611
- Filed: 2020-12-31
- Published: 2021-09-09
- Earliest claimed: 2020-03-09
- Assignees: Taesung Industrial Co., Ltd.
- Applicants: Taesung Industrial Co., Ltd.
- Inventors: Kam Sub SONG
- Web page: https://patentgrep.com/patent/US20210276785A1

## CPC

- A45D 34/00: Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- B65D 81/3222: {with additional means facilitating admixture}
- B05B 11/0081: {and for mixing the components in a common container as a mixture ready for use before discharging the latter}
- B65D 51/2814: {the additional article or materials being released by piercing, cutting or tearing an element enclosing it}
- B65D 83/765: {the piston being a follower-piston and the dispensing means comprising a hand-operated pressure device at the opposite part of the container}
- A45D 2200/058: Means for mixing different substances prior to application
- B05B 11/028: {Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container}
- B05B 11/1023: {having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem}
- B05B 11/1047: {the pump being preassembled as an independent unit before being mounted on the container}
- B05B 11/1074: {located outside pump chambers}
- B65D 2217/00: Details of mixing containers or closures
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)

## Abstract

Provided is an airless type mixing container for two kinds of contents capable of discharging all the contents, in which two kinds of substances may be separately accommodated and easily used by mixing the separately accommodated substances. The mixing container is configured such that an auxiliary container mounting member is mounted so as to be positioned on a content receiving part of a main container in which one of two kinds of contents is accommodated, and an auxiliary container in which the other of the two kinds of contents is stored is mounted on the auxiliary container mounting member, so that the two different kinds of contents are respectively stored. When a content discharge pumping member is deeply pressed, as the auxiliary container mounted on the auxiliary container mounting member is released from a body of the auxiliary container mounting member, the two kinds of substances are mixed together.

## Claims

### Claim 1

An airless type mixing container for two kinds of contents, in which the two kinds of contents are separately stored and are able to be used by mixing, the airless type mixing container being capable of discharging all the contents and comprising:
a main container having an opening part formed with a screw thread having an outer circumferential surface thereof on which a shoulder of a contents discharge pumping member is assembled, the opening part having a narrowed upper part thereof in a through-type tube shape, and having a finishing cap assembled therein and provided with an air inlet hole at a lower part thereof where a piston is assembled, the main container accommodating one of the two kinds of contents;
an auxiliary container mounting member being positioned inside of a content receiving part through the opening part at the upper part of the main container so that a flange at an upper part thereof is locked by an upper edge part of the opening part, and having a locking annular rim on which a locking annular rim formed on an outer surface of a body of an auxiliary container is locked along an inner circumferential surface of a lower part of the auxiliary container mounting member;
the auxiliary container inserted into the lower part of the auxiliary container mounting member and closely assembled by an airtight ring provided on an outer circumferential surface of a lower assembly part, having the body formed by being concentrical with the inner circumferential surface of the auxiliary container mounting member on an upper part of the assembly part and formed with a discharge path configured to allow the two kinds of contents to flow down, and having the locking annular rim locked by the locking annular rim of the auxiliary container mounting member at an upper part of an outer circumferential surface of the body, and
the contents discharge pumping member having a fixing member of a discharge pump that comprises a push button so as to enable pumping operation, the fixing member draping over the flange of the auxiliary container mounting member positioned at the opening part of the main container, and comprising the shoulder that enables the fixing member to be assembled and fixed to the opening part of the main container.

### Claim 2 (depends on 1)

The airless type mixing container of claim 1, wherein the auxiliary container mounting member is configured to be narrowed while forming a step at an upper end thereof so as to minimize assembly friction, and at the same time is configured to prevent the auxiliary container, which is formed and assembled with a diameter that tapers downward a bottom thereof, from naturally being dropped due to its own weight.

### Claim 3 (depends on 1)

The airless type mixing container of claim 1, wherein the discharge path of the auxiliary container is formed by cutting the body downward from the upper part of the body.

### Claim 4 (depends on 1)

The airless type mixing container of claim 1, wherein the piston is provided with an airtight wing being in close contact with an inner circumferential surface of the main container and formed as an edge of a concave-type body, and
the concave-type body has a central part thereof formed in a concave shape and is in close contact while surrounding the assembly part of the auxiliary container, so as to be able to discharge the mixed two kinds of contents without residual amount.