Blender

Patent metadata

Field	Value
Publication number	US-12150595-B2
Application number	US-201917275308-A
Country	US
Kind code	B2
Filing date	Sep 11, 2019
Priority date	Sep 12, 2018
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A blender includes a blender body including an external cylinder, a grinding blade, and a blade driving portion rotating the grinding blade; an internal cylinder unit including an internal cylinder, disposed in the external cylinder, in which the grinding blade is disposed, and an internal cylinder driving portion rotating the internal cylinder; and a controller electrically connected to the blade driving portion and the internal cylinder driving portion to control the blade driving portion and the internal cylinder driving portion. The internal cylinder has an internal side surface on which a projection is formed such that blending objects, flowing rotationally while being ground by the grinding blade, are caught. A mixer according to the present invention comprises: a mixer main body provided with an outer container, pulverizing blades, and a blade driving unit for rotating the pulverizing blades; an inner container unit provided with an inner container, arranged inside the outer container, having the pulverizing blades located therein, and with an inner container driving unit for rotating the inner container; and a controller electrically connected to the blade driving unit and inner container driving unit to control both, wherein the inner container is provided with a protruding part on the inner side surface thereof so that the circularly moving foodstuff being mixed gets caught thereon while being pulverized by the pulverizing blades, and, in order to induce a state of imbalance in the foodstuff being mixed in the inner container, the controller controls the inner container driving unit to mix the foodstuff being mixed while repeating the patterns of reverse-rotating the inner container in the direction opposite to the rotational direction of the pulverizing blades and then stopping, or reverse-rotating and then changing the rotational velocity.

First claim

The invention claimed is:

1. A blender comprising:
a blender body including an external cylinder, a grinding blade, and a blade driving portion rotating the grinding blade;
an internal cylinder unit including an internal cylinder, disposed in the external cylinder, in which the grinding blade is disposed, and an internal cylinder driving portion rotating the internal cylinder; and
a controller electrically connected to the blade driving portion and the internal cylinder driving portion to control the blade driving portion and the internal cylinder driving portion,
wherein the internal cylinder has an internal side surface on which a projection is formed such that blending objects, flowing rotationally while being ground by the grinding blade, are caught,
wherein the controller controls the internal cylinder driving portion to blend the blending objects while repeating an operating pattern, in which the internal cylinder rotates reversely in a direction opposing a rotation direction of the grinding blade and is then stopped, or an operating pattern, in which the internal cylinder rotates reversely and then changes rotational speed, to break a state of balance of the blending objects in the internal cylinder, and
wherein the projection has a screw projection line shape inducing a downward spiral flow of the blending objects such that the blending objects flow downwardly while rotating in a direction opposing the rotation direction of the grinding blade when the grinding blade and the internal cylinder rotate in opposing directions.

2. The blender of claim 1 , wherein the controller controls the internal cylinder driving portion and the blade driving portion to rotate the internal cylinder and then to rotate the grinding blade.

3. The blender of claim 1 , wherein the controller controls the blade driving portion to stop the grinding blade at least once during rotation of the internal cylinder and the grinding blade.

4. The blender of claim 1 , wherein a guide portion is formed below the projection, disposed in a side direction of the grinding blade, to slidably guide the blending objects to a center of the internal cylinder such that the blending objects are prevented from being caught between the grinding blade and the projection.

5. The blender of claim 4 , wherein the guide portion is formed between a lower surface of the projection and an internal lower surface of the internal cylinder and is provided with a slide surface, and
wherein the slide surface extends inwardly of the rotation cylinder from an internal side surface of the internal cylinder, and is tilted in the internal direction of the grinding blade when the grinding blade and the internal cylinder rotate in opposing directions.

6. The blender of claim 5 , wherein a central side edge of the rotation cylinder is curved on the slide surface in the internal direction of the grinding blade when the grinding blade and the internal cylinder rotate in opposing directions.

7. The blender of claim 5 , wherein the projection protrudes from the internal side surface of the internal cylinder to the center of the internal cylinder, and is tilted in the rotation direction of the internal cylinder when the grinding blade and the internal cylinder rotate in opposing directions.

8. The blender of claim 1 , wherein both the blade driving portion and the internal cylinder driving portion are disposed below the internal cylinder, or the blade driving portion is disposed below the internal cylinder and the internal cylinder driving portion is disposed above the internal cylinder.

9. The blender of claim 1 , wherein the internal cylinder has a side portion in which a plurality of drain holes are formed to dehydrate the blending objects during rotation of the internal cylinder.

10. The blender of claim 9 , wherein the external cylinder has a lower potion on which a discharge pipe is formed to discharge liquid, formed by dehydrating the blending objects, to an outside of the blender.

11. The blender of claim 1 , wherein a blade rotation shaft of the blade driving portion is axially rotationally mounted in a hollow, formed in an internal cylinder rotation shaft of the internal cylinder driving portion, such that the blade rotation shaft and the internal cylinder rotation shaft axially rotate independently.

12. A blender comprising:
a blender body including an external cylinder, a grinding blade, and a blade driving portion rotating the grinding blade;
an internal cylinder unit including an internal cylinder, disposed in the external cylinder, in which the grinding blade is disposed, and an internal cylinder driving portion rotating the internal cylinder;
a controller electrically connected to the blade driving portion and the internal cylinder driving portion to control the blade driving portion and the internal cylinder driving portion; and
a vacuum unit mounted in the blender body and configured to establish vacuum in the internal cylinder,
wherein the internal cylinder has an internal side surface on which a projection is formed such that blending objects, flowing rotationally while being ground by the grinding blade, are caught, and
wherein the controller controls the internal cylinder driving portion to blend the blending objects while repeating an operating pattern, in which the internal cylinder rotates reversely in a direction opposing a rotation direction of the grinding blade and is then stopped, or an operating pattern, in which the internal cylinder rotates reversely and then changes rotational speed, to break a state of balance of the blending objects in the internal cylinder.

13. The blender of claim 12 , wherein the vacuum unit comprises:
a suction pipe communicating with the internal cylinder; and
a vacuum driving portion communicating with the suction pipe.

Assignees

• Intropack Co Ltd
• Nuc Electronics Co Ltd

Inventors

• Lee Kyul-Joo

Classifications

• A47J43/085

  for machines with tools driven from the lower side (A47J43/087, A47J43/09 take precedence) · CPC title

• A47J43/0722

  Mixing, whipping or cutting tools · CPC title

• A47J43/0727 Primary

  Mixing bowls · CPC title

• A47J43/0716 Primary

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