Motor magnetic interference ring

Patent metadata

Field	Value
Publication number	US-11266271-B2
Application number	US-201715836179-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Dec 8, 2016
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A blender system that includes a base that is selectively and operatively engaged with a container is shown and described herein. The blender system may include a container. The container may include a magnet and may be engagable with a blade base. The blade base may include a switch that responds to the magnet. The blender system may include a shield that shields the magnet and switch from a magnetic field generated by operation of a motor.

First claim

The invention claimed is:

1. A blender system comprising:
a base including a motor;
a container comprising at least one magnet; and
a blade base operatively attachable to the container and the base, the blade base comprising:
a blade assembly;
a switch that interacts with the magnet when the magnet is within an operating range of the switch, wherein the switch and the magnet are disposed above the motor of the base when the blade base, the container, and the base are operatively attached together; and
a shield comprising a metal body that is disposed between the switch and the motor of the base when the blade base is operatively attached to the container and the base, wherein the shield operatively blocks a magnetic field generated by operation of the motor.

2. The blender system of claim 1 , wherein the metal body comprises steel.

3. The blender system of claim 1 , wherein the container comprises at least two magnets.

4. The blender system of claim 1 , wherein the magnet comprises an arc-shape that is less than 360 degrees.

5. The blender system of claim 4 , wherein the arc-shape is seventy-five degrees or greater.

6. The blender system of claim 1 , wherein the container comprises an inner layer and an outer layer, and wherein the magnet is disposed between the inner layer and the outer layer.

7. The blender system of claim 1 , wherein the switch comprises a reed switch.

8. A blender system for blending foodstuff, the blender system comprising:
a base comprising a housing and a motor;
a container comprising a magnet disposed proximal to an opening of the container;
a blade base operatively and removably attachable to the container and the housing of the base, wherein the blade base comprises a blade assembly, at least one switch that operatively alters a state based on interactions with the magnet, and wherein the switch and magnet are operatively disposed above the motor when the blade base, the container, and the housing are operatively attached together; and
a shield comprising a metal body that is disposed between the at least one switch and the motor of the base when the blade base is operatively attached to a top of the base,
wherein the shield is capable of blocking a magnetic field generated by operation of the motor.

9. The blender system of claim 8 , wherein the shield is disposed within the base.

10. The blender system of claim 8 , wherein the shield is disposed within the blade base.

11. The blender system of claim 8 , wherein the at least one switch comprises a reed switch.

12. The blender system of claim 8 , wherein the at least one switch operatively enables operation of the motor when the magnet is within an operating field of the at least one switch and disables operation of the motor when the magnet is not within the operating filed of the at least one switch.

13. The blender system of claim 8 , wherein the shield further comprises a carrier coupled with the metal body.

14. The blender system of claim 13 , wherein the carrier is overmolded with the metal body.

15. The blender system of claim 14 , wherein the blade base further comprises a body, a shaft, and at least one blade, and wherein the carrier is operatively attached to the body.

16. The blender system of claim 8 , wherein the base is operatively attachable with at least one other container having a different volume than the container.

Assignees

• Vita Mix Man Corp

Inventors

• Krivos Brenton
• Kolar David
• Miller Eric
• Tareen Saifur

Classifications

• A47J43/0761 Primary

  for machines with tools driven from the lower side · CPC title

• B01F35/6052

  with locking, blocking or interlocking mechanisms for preventing operation of the actuation mechanism of the mixing device · CPC title

• A47J43/085

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

• A47J43/08

  Driving mechanisms · CPC title

• A47J43/0465 Primary

  with magnetic drive · CPC title