Double whip stand mixer accessory

Patent metadata

Field	Value
Publication number	US-12369752-B2
Application number	US-202217568016-A
Country	US
Kind code	B2
Filing date	Jan 4, 2022
Priority date	Jan 4, 2022
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

A mixer includes an eccentric drive mounted on a mixing head of the mixer and configured to orbit around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft about the central axis of the mixing area. A dual whisk beater attachment includes a housing operably coupled to the eccentric drive, a first whisk rotatably mounted within the housing and operably coupled to the drive shaft of the eccentric drive of the mixer, and a second whisk rotatably mounted within the housing and operably coupled to the drive shaft of the eccentric drive of the mixer via a plurality of gears disposed within the housing. The first whisk is configured to rotate about a first whisk rotational axis and orbit the central axis of a mixing area, and the second whisk is configured to rotate about a second whisk rotational axis.

First claim

What is claimed is:

1. A mixer for combining food constituents into a homogeneous mass, the mixer comprising:
an eccentric drive mounted on a mixing head of the mixer and configured to orbit around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft about the central axis of the mixing area; and
a dual whisk beater attachment, the dual whisk beater attachment further comprising:
a housing operably coupled to the eccentric drive;
a first whisk rotatably mounted within the housing and operably coupled to the drive shaft of the eccentric drive of the mixer; and
a second whisk rotatably mounted within the housing and operably coupled to the drive shaft of the eccentric drive of the mixer via a plurality of gears disposed within the housing;

wherein the first whisk is configured to rotate about a first whisk rotational axis and orbit the central axis of the mixing area; and
wherein the second whisk is configured to rotate about a second whisk rotational axis.

2. The mixer of claim 1 , wherein the drive shaft is coupled with an electric motor disposed within the mixing head, and wherein the drive shaft is received within the housing by which the housing is coupled to the eccentric drive.

3. The mixer of claim 2 , wherein the housing is rotationally and operably coupled to an attachment drive lug disposed on the eccentric drive.

4. The mixer of claim 2 , wherein the offset rotational axis of the drive shaft and the first whisk rotational axis are coincident and the first whisk is configured to rotate about the offset rotational axis of the drive shaft and orbit the central axis of a mixing area.

5. The mixer of claim 4 , wherein the first whisk is operably coupled to the drive shaft of the mixer by a releasable connector rotatably mounted in the housing.

6. The mixer of claim 5 , wherein the releasable connector directly and coaxially couples the drive shaft with the first whisk and the plurality of gears disposed within the housing comprises a drive gear and a second whisk driven gear, the drive gear being disposed on the releasable connector such the drive shaft and the drive gear are axially coincident.

7. The mixer of claim 6 , wherein the plurality of gears drives the first whisk and the second whisk via a 1:1 gear ratio.

8. The mixer of claim 2 , wherein the first whisk rotational axis is offset from the offset rotational axis of the drive shaft and orbits the central axis of the mixing area along a first orbit path and the second whisk rotational axis is offset from the central axis and orbits the central axis of the mixing area along a second orbit path.

9. The mixer of claim 8 , wherein the housing is operably coupled to the drive shaft of the eccentric drive by a magnet disposed in the housing.

10. The mixer of claim 1 , wherein the first whisk rotational axis is offset from the offset rotational axis of the drive shaft and orbits a central axis of a mixing area along a first orbit path and the second whisk rotational axis is offset from the central axis and orbits the central axis along a second orbit path.

11. The mixer of claim 10 , wherein the plurality of gears disposed within the housing comprises a drive gear, a first whisk driven gear, a second whisk driven gear, and an idler gear operably coupled with the drive gear and one of either the first whisk driven gear or the second whisk driven gear.

12. The mixer of claim 11 , wherein the drive gear is directly coupled with and coaxially aligned with the drive shaft via the via a releasable connector, the first whisk driven gear is directly coupled with and coaxially aligned with the first whisk, and the second whisk driven gear is directly coupled with and coaxially aligned with the second whisk.

13. The mixer of claim 1 , wherein:
the first whisk comprises a first plurality of whips and the second whisk comprises a second plurality of whips;
the first plurality of whips and the second plurality of whips rotate out of phase, such that contact between the first plurality of whips and the second plurality of whips is avoided; and
the first whisk and the second whisk rotate in opposite directions.

14. A dual whisk beater attachment for a stand mixer, the stand mixer comprising an eccentric drive mounted on a mixing head of the stand mixer and the eccentric drive configured to orbit around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft about the central axis of the mixing area, the dual whisk beater attachment comprising:
a housing operably coupled to the eccentric drive of the stand mixer;
a first whisk operably and axially coupled to the drive shaft of the stand mixer; and
a second whisk operably coupled to the first whisk via a plurality of operably coupled gears disposed in the housing;
wherein the first whisk is configured to rotate about a first offset rotational axis of the drive shaft and orbit a central axis of a mixing area and the second whisk is configured to rotate about a second rotational axis and rotate about the central axis.

15. The dual whisk beater attachment of claim 14 , wherein the first whisk comprises a first plurality of whips and the second whisk comprises a second plurality of whips;
wherein the first plurality of whips and the second plurality of whips are out of phase such that contact between the first plurality of whips and the second plurality of whips is avoided; and
wherein the first whisk and the second whisk rotate in opposite directions.

16. The dual whisk beater attachment of claim 14 , wherein the first whisk is configured to rotate about a first rotational axis offset from the drive shaft and orbit a central axis of a mixing area along a first orbit path and the second whisk is configured to rotate about a second rotational axis offset from the central axis and orbit the central axis along a second orbit path.

17. A dual whisk beater attachment for a stand mixer, the stand mixer comprising an eccentric drive mounted on a mixing head of the stand mixer and the eccentric drive configured to orbit around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft about the central axis of the mixing area, the dual whisk beater attachment comprising:
a first whisk operably coupled to the drive shaft of the stand mixer;
a second whisk operably coupled to the drive shaft of the stand mixer; and
a plurality of gears by which the first whisk and the second whisk are operably coupled to the drive shaft of the stand mixer;
wherein the first whisk is configured to rotate about a first rotational axis offset from the drive shaft and orbit a central axis of a mixing area along a first orbit path and the second whisk is configured to rotate about a second rotational axis offset from the central axis and orbit the central axis along a second orbit path.

18. The dual whisk beater attachment of claim 17 , wherein the plurality of gears are disposed within a housing and further comprise a drive gear, a first whisk driven gear, a second whisk driven gear, and an idler gear operably coupled with the drive gear and the second whisk driven gear.

19. The dual whisk beater attachment of claim 17 , wherein:
the first whisk comprises a first plurality of whips and the second whisk comprises a second plurality of whips;
the first plurality of whips and the second plurality of whips rotate out of phase, such that contact between the first plurality of whips and the second plurality of whips is avoided;
the first whisk and the second whisk rotate in oppo

Assignees

• Whirlpool Co

Inventors

• Mock Brandon T
• Murphy Sayer James

Classifications

• A47J43/082

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

• A47J43/0711 Primary

  mixing, whipping or cutting tools · CPC title

• B01F27/95

  with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis · CPC title

• B01F27/96

  with openwork frames or cages · CPC title

• B01F27/807

  with the stirrer-head pivoting about a horizontal axis to bring it in and out of operative position, e.g. with receptacles pivoting about a horizontal axis for emptying · CPC title