Dough hook and a food mixer utilizing said hook

• US 5,758,963 A
• Filed: 11/12/1996
• Issued: 06/02/1998
• Est. Priority Date: 11/12/1996
• Status: Expired due to Fees

• Current Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Original Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Inventors: Friend, Duane H., Xie, Mark Mingjun
• Primary Examiner(s): Cooley, Charles E.
• Application Number:
  US08/745,424
• Time in Patent Office: 567 Days
• Field of Search: 366/64-66, 366/96-98, 366/197, 366/203, 366/207, 366/288, 366/297-301, 366/342-343, 366/349
• US Class Current: 366/97
• CPC Class Codes: A21C 1/02 with vertically-mounted tools; Machines for whipping or beating
• CPC Class Codes: A21C 1/1405 Tools
• CPC Class Codes: B01F 27/1126 the stirrer being a bent rod supported at one end only
• CPC Class Codes: B01F 27/95 with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
• CPC Class Codes: B01F 35/33 Transmissions; Means for modifying the speed or direction of rotation

Abstract

A dough hook for a planetary mixer, the use of which prolongs the life of mixer parts such as the shaft, gears and the hook itself and which is characterized in that the following points are located on common edge of the hook portion:

______________________________________                                    

Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 3.5 6.2 71.5 3.0 8.7 106 2.1 10.6 140 0 12.2 180 ______________________________________

Claims

1. A mixer for mixing dough comprising:

a housing portion of said mixer;

a mixing bowl removably positioned on said housing;

a mixer head attached to said housing portion and driven by a motor;

at least one dough hook mounted in said mixer head for kneading dough contained in said mixing bowl, said dough hook having a helical portion,

wherein an outer reach of said helical portion of said dough hook and an inner surface of said mixing bowl form a clearance, said clearance being of an amount small enough to effectively mix dough but not so small that the dough is pinched to a degree that said motor oscillates on/off and overheats, said clearance being about 0.7 inches in a 20 quart bowl.

2. A dough hook for a planetary mixer which comprises:

a shaft portion for attaching said hook to a mixer head; and

a hook portion having a plurality of points located on a common edge of said hook portion,

said points being located approximately as follows;

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 3.5 6.2 71.5 3.0 8.7 106 2.1 10.6 140 0 12.2 180 ______________________________________

3. The dough hook of claim 2 wherein said hook portion has a trapezoidal cross-section.

4. The dough hook of claim 2 wherein said points are located approximately as follows:

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of Hook from a Fixed Point on said Hook Portion (in.) Portion (in.) Hook Portion ______________________________________ 3.47 6.22 71.5 3.00 8.71 106 2.14 10.58 140 0 12.22 180 ______________________________________

5. The dough hook of claim 2 further comprising points located approximately as follow:

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 2.1 1.4 0 3.7 3.7 20.5 ______________________________________

6. A dough hook for a planetary mixer which comprises:

a shaft portion for attaching said hook to a mixer head; and

a hook portion having a plurality of points located on a common edge of said hook portion,

said points being located approximately as follows;

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 4.1 7.9 71.5 4.3 11.0 106 2.9 13.4 140 ______________________________________

7. The dough hook of claim 6 wherein said hook portion has a trapezoidal cross-section.

8. The dough hook of claim 6 wherein said point are located approximately as follow:

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 4.12 7.94 71.5 4.30 11.00 106 2.87 13.44 140 ______________________________________

9. A dough hook for a planetary mixer which comprises:

a shaft portion for attaching said hook to a mixer head; and

a hook portion having a plurality of points located on a common edge of said hook portion,

said points being located approximately as follows;

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 2.7 6.2 100 2.3 7.2 125 1.6 8.2 150 ______________________________________

10. The dough hook of claim 9 wherein said hook portion has a trapezoidal cross-section.

11. The dough hook of claim 9 wherein said points are located approximately as follow:

space="preserve" listing-type="tabular">______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 2.657 6.250 100 2.297 7.250 125 1.625 8.250 150 ______________________________________