Ice cream maker assembly

Patent metadata

Field	Value
Publication number	US-2021392918-A1
Application number	US-202117343012-A
Country	US
Kind code	A1
Filing date	Jun 9, 2021
Priority date	Jun 23, 2020
Publication date	Dec 23, 2021
Grant date	—

Abstract

An ice cream making assembly includes a mixing bowl having an outer housing and an inner liner defining a wall cavity therebetween. The mixing bowl further includes a radiator fin unit received within a portion of the wall cavity and a phase-change medium filling a further portion of the wall cavity surrounding at least a portion of the radiator fin unit. The radiator fin unit defines an outer chamfer extending generally along an outer cross-sectional profile of the wall cavity and a tapered inner profile extending along inner cross-sectional profile of the wall cavity and in at least partial contact with the inner liner. The assembly further includes a dasher including first and second mixing arms extending outwardly from an anchor end of the axle and upwardly and outwardly to generally follow an angled inner profile of the a food-product receiving cavity defined by the liner.

First claim

What is claimed is:

1 . An ice cream making assembly, comprising:
a mixing bowl including:
an outer housing having an arc-shaped outer cross-sectional profile extending from an upper rim toward a base of the mixing bowl; and
an inner liner disposed within the outer housing to define a wall cavity therebetween, the inner liner defining a food-product receiving cavity having an upper edge spaced beneath and inset with respect to the upper rim and a sidewall extending downwardly and inwardly from the upper edge, the inner liner further defining an overflow area positioned above the food-product receiving cavity and extending outwardly from the upper edge toward the upper rim; and
a dasher including a center axle extending along an axis from an input end of the center axle to an anchor end contacting a central portion of the inner liner within the food-product receiving cavity, the dasher further including first and second mixing arms having side portions spaced outwardly from the center axle to engage with the sidewall of the food-product receiving cavity.

2 . The ice cream making assembly of claim 1 , wherein the overflow area is defined by an upper surface of the inner liner that extends outwardly from the upper edge of the food-product receiving cavity to a base edge defined beneath the upper rim of the outer housing, the base edge defining an outer diameter of the upper surface that is greater than an inner diameter defined by the upper edge of the food-product receiving cavity.

3 . The ice cream making assembly of claim 1 , wherein the mixing bowl further includes a radiator fin unit received within the wall cavity, the radiator fin unit defining an outer profile extending along a first portion of the arc-shaped outer cross-sectional profile adjacent the upper rim, a chamfered portion extending along a second portion of the arc-shaped outer cross-sectional profile between the first portion and the base, and a tapered inner profile extending along the sidewall of the inner liner and in at least partial contact therewith.

4 . The ice cream making assembly of claim 3 , wherein the mixing bowl further includes a phase-change medium filling a further portion of the wall cavity surrounding at least a portion of the radiator fin unit.

5 . The ice cream making assembly of claim 1 , wherein the input end of the center axle defines a first clutch plate, the ice cream making assembly further comprising:
a drive assembly including a second clutch plate operably engageable with the first clutch plate such that the drive assembly can cause rotation of the dasher within the food-product receiving cavity, the second clutch plate being under a bias against the first clutch plate and movable against the bias to selectively release from the first clutch plate.

6 . The ice cream making assembly of claim 5 , wherein the dasher further defines a circular flange surrounding the first clutch plate and extending upwardly therefrom opposite the anchor end of the center axle, the second clutch plate being operably receivable within the circular flange.

7 . The ice cream making assembly of claim 5 , wherein:
the drive assembly further defines an input plate defining a channel configured to engage with a gear housing on an output of a mixing appliance; and the base of the outer housing of the mixing bowl is configured to couple with a base of the mixing appliance.

8 . The ice cream making assembly of claim 1 , wherein an outer bowl includes first and second handles extending from opposite sides thereof, the handles each defining a respective boss for receiving a retention pin of a bowl lift mechanism associated with a stand mixer.

9 . The ice cream making assembly of claim 1 , wherein the inner liner defines an upper surface extending outwardly from a sidewall of the food-product receiving cavity to an upper lip of the outer housing, the sidewall defining an inner diameter at an intersection of with the upper surface of about 160 mm, the upper lip defining an outer diameter of about 206 mm.

10 . An ice cream making attachment for a stand mixer, comprising:
a mixing bowl including an inner liner defining a food-product receiving cavity having a sidewall; a dasher including a center axle extending along an axis from an input end of the center axle to an anchor end contacting a central portion of the inner liner, the dasher further including first and second mixing arms spaced from the center axle and positionable within the food-product receiving cavity in contact with respective portions of the sidewall, the input end of the center axle defining a first clutch plate; and a drive assembly including a second clutch plate operably engageable with the first clutch plate such that the drive assembly can cause rotation of the dasher within the food-product receiving cavity to move the mixing arms along the sidewall, the second clutch plate being biased against the first clutch plate and movable against the bias to selectively release from the first clutch plate.

11 . The ice cream making attachment of claim 10 , wherein the dasher further defines a circular flange surrounding the first clutch plate and extending upwardly therefrom opposite the anchor end of the center axle, the second clutch plate being operably receivable within the circular flange.

12 . The ice cream making attachment of claim 10 , wherein the drive assembly further defines an input plate defining a channel configured to engage with a gear housing on an output of the stand mixer.

13 . The ice cream making attachment of claim 12 , wherein the channel of the input plate includes a plurality of compressible inserts spaced along a length of the channel on opposite sides thereof.

14 . The ice cream making attachment of claim 12 , wherein the channel is tapered to selectively engage with one of a plurality of gear housings, including the gear housing, the plurality of gear housings having varying configurations.

15 . The ice cream making attachment of claim 10 , wherein the first and second mixing arms each define, in a cross-sectional profile thereof, a scraping portion having a leading edge positionable in contact with an inner surface of the food-product receiving cavity with the scraping portion extending at an acute angle with respect to a tangent of the leading edge along the inner surface, the cross-sectional profile further having an agitation rib extending from the scraping portion away from the inner surface at an obtuse angle with respect to the tangent.

16 . A mixing bowl for an ice cream maker, comprising:
an outer housing; an inner liner disposed within the outer housing to define a wall cavity between the outer housing and the inner liner, the inner liner defining a food-product receiving cavity; a radiator fin unit received within the wall cavity; and a phase-change medium comprising a 32.5% urea solution filling a further portion of the wall cavity surrounding at least a portion of the radiator fin unit.

17 . The mixing bowl for an ice cream maker of claim 16 , wherein the outer housing defines an arc-shaped outer cross-sectional profile extending from an upper rim toward a base of the mixing bowl and has at least one integral support feature extending along at least a portion of the arc-shaped outer cross-sectional profile, the at least one integral support feature being visible along an outer surface of the outer housing.

18 . The mixing bowl for an ice cream maker of claim 17 , wherein the at least one integral support feature comprises a plurality of vertically-orient

Assignees

• Whirlpool Co

Inventors

• Anand Prabhjee
• Arnold Richard D
• Burkhart Bryan Scott
• Eaton Christopher J
• Feltman Patrick David
• Heater Timothy E
• Mock Brandon Tyler
• Morris Jon Patrick
• Schutte Nicholas Hill
• Singh Rohit Ranjan

Classifications

• B01F27/805

  wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle · CPC title

• A23G9/12 Primary

  using means for stirring the contents in a non-moving container · CPC title

• A23G9/224

  Agitators or scrapers · CPC title

• B01F27/96

  with openwork frames or cages · CPC title

• A47J43/0711

  mixing, whipping or cutting tools · CPC title