Vacuum blender

Patent metadata

Field	Value
Publication number	US-12543894-B2
Application number	US-202017769836-A
Country	US
Kind code	B2
Filing date	Sep 25, 2020
Priority date	Oct 21, 2019
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

A vacuum blender is disclosed. The blender includes a blender body including a container support case, an outer container seated in the container support case, a grinding blade, and a blade driving unit for rotating the grinding blade; an inner container unit including an inner container disposed in the outer container and in which the grinding blade is located, and an inner container driving unit for rotating the inner container; a vacuum unit installed in the container support case and configured to perform a blending operation on an object to be blended accommodated in the inner container in a vacuum state, wherein the outer container is opened and closed by an outer container cover, the inner container is opened and closed by an inner container cover, the inner container cover is assembled to rotate on the outer container cover.

First claim

The invention claimed is:

1 . A blender comprising:
a blender body including a container support case, an outer container seated on the container support case, a grinding blade, and a blade driving unit rotating the grinding blade; and an inner container unit including an inner container which is disposed in the outer container and in which the grinding blade is positioned, and an inner container driving unit rotating the inner container; wherein the outer container is opened and closed by an outer container cover, the inner container is opened and closed by an inner container cover, and the inner container cover is rotatably assembled to the outer container cover, a blade rotation shaft of the blade driving unit is installed to be axially rotated in a hollow formed in an inner container rotation shaft of the inner container driving unit, such that the blade rotation shaft and the inner container rotation shaft are axially rotated independently of each other, and an intermediate rotation shaft unit connecting the blade driving unit and the grinding blade to each other and connecting the inner container driving unit and the inner container to each other is installed in the outer container, wherein the blade driving unit and the inner container driving unit are mounted in the container support case, and the outer container is detachably connected to the container support case, the intermediate rotation shaft unit includes: a first intermediate rotation shaft connecting the blade rotation shaft of the blade driving unit and the grinding blade to engage with each other; and a second intermediate rotation shaft connecting the inner container rotation shaft of the inner container driving unit and the inner container to engage with each other, and the second intermediate rotation shaft and the first intermediate rotation shaft axially rotate independently of each other while the second intermediate rotation shaft surrounds the first intermediate rotation shaft, wherein the first intermediate rotation shaft has an upper portion key-fastened to the grinding blade and a lower portion key-fastened to the blade rotation shaft, and the second intermediate rotation shaft has an upper portion key-fastened to the inner container and a lower portion key-fastened to the inner container rotation shaft.

2 . The blender of claim 1 , wherein the first intermediate rotation shaft has first keyways formed in the upper portion thereof, and the grinding blade has lower keys protruding on inner side surfaces of a lower groove formed in the grinding blade and key-fastened to the first keyways, and the first keyway extends downward from an upper end of a side surface of the first intermediate rotation shaft and extends in both side directions at a lower portion thereof.

3 . The blender of claim 1 , wherein a shaft magnet is embedded in the upper portion of the first intermediate rotation shaft, and a body magnet is embedded in the grinding blade, such that the first intermediate rotation shaft and the grinding blade are attached to each other by magnetic forces of the shaft magnet and the body magnet.

4 . The blender of claim 1 , wherein a lower hole through which the first intermediate rotation shaft penetrates is formed in the inner container, and a support jaw is formed on an upper edge of the lower hole, and the upper portion of the second intermediate rotation shaft is inserted into the lower hole of the inner container to be assembled while supporting the support jaw of the inner container upward and is key-fastened to inner side surfaces of the lower hole, and the lower portion of the second intermediate rotation shaft is inserted into and assembled to an upper groove of the inner container rotation shaft and is key-fastened to inner side surfaces of the upper groove.

5 . The blender of claim 1 , wherein the grinding blade and the inner container rotate in opposite directions.

6 . The blender of claim 5 , wherein the inner container has a protrusion part formed on an inner side surface thereof so that the object to be blended rotationally flowing while being ground by the grinding blade is caught, and the protrusion part has a shape of a screw protrusion line inducing a downward spiral flow of the object to be blended so that the object to be blended flows downward while rotating in a direction opposite to a direction in which the grinding blade rotates.

7 . The blender of claim 1 , wherein the inner container has a plurality of dehydration holes formed in side portions thereof so that the object to be blended is dehydrated when being rotated.

8 . The blender of claim 7 , wherein a discharge pipe protruding outwardly is formed at a lower portion of the outer container so that juice dehydrated from the object to be blended is discharged outwardly of the outer container, and a guide protrusion jaw is formed to protrude on one side of a lead portion of the discharge pipe at a lower portion of an inner surface of the outer container so as to block a rotational flow of the juice generated from the object to be blended to allow the juice to be guided to and introduced into the lead portion of the discharge pipe.

9 . The blender of claim 1 , wherein the blender further comprises a vacuum unit installed in the container support case, including a suction pipe communicated with the inner container and a vacuum driving unit connected to the suction pipe so that a blending operation for an object to be blended accommodated in the inner container is performed in a vacuum state.

Assignees

• Intropack Co Ltd
• Nuc Electronics Co Ltd

Inventors

• Lee Kyul-Joo

Classifications

• A47J43/087

  for machines with several driving units (A47J43/09 takes precedence) · CPC title

• A47J43/0727

  Mixing bowls · CPC title

• A47J44/00 Primary

  Multi-purpose machines for preparing food {with several driving units} · CPC title

• A47J43/0716 Primary

  for machines with tools driven from the lower side (A47J43/0727 - A47J43/08 take precedence) · CPC title