Kitchen appliance

• US 4,878,627 A
• Filed: 08/30/1988
• Issued: 11/07/1989
• Est. Priority Date: 08/30/1988
• Status: Expired due to Fees

• Current Assignee: A Stephan U Soehne GmbH & Company Stephanplatz
• Original Assignee: A. Stephan U. Soehne GmbH & Co.
• Inventors: Otto, Friedrich
• Primary Examiner(s): Simone, Timothy F.
• Application Number:
  US07/238,075
• Time in Patent Office: 434 Days
• Field of Search: 99/348, 99/509, 99/510, 366/205, 366/279, 366/293, 366/314, 366/342, 366/343, 366/325, 366/327, 241/282.1, 241/282.2, 241/92, 241/199.12
• US Class Current: 241/199.12
• CPC Class Codes: A47J 43/0722 Mixing, whipping or cutting tools
• CPC Class Codes: B01F 27/231 with a variable orientation during mixing operation, e.g. with tiltable rotor axis
• CPC Class Codes: B01F 27/808 with stirrers driven from the bottom of the receptacle
• CPC Class Codes: B01F 35/3213 at the lower side of the axis, e.g. driving the stirrer from the bottom of a receptacle
• CPC Class Codes: B01F 35/75 Discharge mechanisms
• CPC Class Codes: B01F 35/7548 using tilting or pivoting means for emptying the mixing receptacle

Abstract

A kitchen appliance for the mincing or shredding of cooked pieces of beef for the preparation of corned beef includes an upwardly open bowl of substantially round cross-section and an upwardly protruded tool shaft which extends centrally thorough a bottom portion of the bowl and can be driven at high speed by a power source underneath the bowl bottom. On the tool shaft there is fixed a chopping tool having radially outwardly extending blades. The blades are arranged at different relative heights.

Claims

1. A kitchen appliance for the mincing or shredding of food, comprising:

(a) an upwardly open bowl of substantially round cross-section with a bowl bottom;

(b) an upwardly protruding tool shaft perpendicular to the center of the bowl bottom and driven at high speed by a motor arranged underneath the bowl bottom; and

(c) on the tool shaft there is fixed a chopping tool having four radially outwardly extending blades mutually offset at 90°

of circumference, which in plan view form a cross;

the blades arranged at different axial heights, the lowest blade revolving directly above the bowl bottom and the highest blade revolving at approximately 3/4 of the bowl height (H);

each blade having a constant flatly rectangular cross-section over its radial length;

each blade being slightly pitched about its longitudinal axis, its longer rectangular side forming an acute angle of pitch (alpha) with the horizontal in such a way that, seen in the direction of rotation, the front edge of each blade is slightly higher than the rear edge thereof; and

in plan view, the radial distance (B) between the free ends of two opposite blades, is equivalent to approximately half the maximum bowl diameter (D).

2. A kitchen appliance according to claim 1, wherein the two lower blades and the two higher blades are mutually offset at about 180°

.

3. A kitchen appliance according to claim 1, wherein the four blades have the same radial length.

4. A kitchen appliance according to claim 1, wherein the axial heights of the four blades above the bowl bottom, relative to the maximum bowl diameter (D) are 1/20, 3/20, 5/20 and 7/20 with a bowl height (H) of 12/20 of the bowl diameter (D).

5. A kitchen appliance according to claim 1, wherein in plan view, the radial distance (B) between the free ends of the mutually opposite blades is 9/20 of the maximum bowl diameter (D).

6. A kitchen appliance according to claim 1, wherein the angle of pitch is from about 5°

to about 15°

.

7. A kitchen appliance according to claim 1, wherein the blades are fixed on a tool carrier approximately square in cross-section.

8. A kitchen appliance according to claim 7, wherein the blades are in each case fixed in the region of a perpendicular edge of the tool carrier.

9. A kitchen appliance according to claim 7, wherein the width (C) of each blade is approximately 3/10 of the diagonal edge distance (A) of the tool carrier.

10. A kitchen appliance according to claim 7, wherein the thickness (E) of each blade is approximately 1/10 of the diagonal edge distance (A) of the tool carrier.

11. A kitchen appliance according to claim 1, wherein the tool carrier comprises a steel tube, which is square in cross-section, is fitted onto a round bushing and is attached to the ends of the latter.

12. A kitchen appliance according to claim 1, wherein the bowl has on its open upper side a closable bowl lid, in the center of which there is mounted a transporting blade, which can be rotated about a perpendicular axis by means of a power source, which extends almost up to the bowl wall and which revolves with its lower free end approximately on a level with the second blade.

13. A kitchen appliance according to claim 1, wherein the blades revolve at a speed of between 500 and 1,800 rpm.

14. A kitchen appliance according to claim 12, wherein the speed of the transporting blade is substantially lower than that of the four blades.

15. A kitchen appliance, comprising:

a bowl with a generally circular cross-section, and including a bottom and a top;

a hollow tilting shaft having opposite ends, disposed horizontally beneath the bottom of the bowl, connected with the bowl and functioning to tip the bowl;

a support stand supporting the second end of the tilting shaft;

a closable lid for closing the top of the bowl;

blade means for processing food disposed within the bowl;

a drive motor for driving the blade means, connected to the bottom of the bowl and disposed beneath the tipping means;

a control box integral with the support stand and supporting an end of the tilting shaft;

a plurality of electric lines from the motor to the control box, disposed in the tilting shaft;

a bearing rotatably supporting the opposite ends of the tilting shaft;

an upwardly protruding tool shaft perpendicular to the center of the bowl bottom and driven by the drive motor; and

wherein

the blade means include four radially outwardly extending blades mutually offset at 90°

of circumference, which in plan view form a cross;

the blades arranged at different axial heights, the lowest blade revolving directly above the bowl bottom and the highest blade revolving at approximately 3/4 of the bowl height (H);

each blade having a constant flatly rectangular cross-section over its radial length;

each blade being slightly pitched about its longitudinal axis, its longer rectangular side forming an acute angle of pitch (alpha) with the horizontal in such a way that, seen in the direction of rotation, the front edge of each blade is slightly higher than the rear edge thereof; and

in plan view, the radial distance (B) between the free ends of two opposite blades, is equivalent to approximately half the maximum bowl diameter (D).