ICE SHAVING MACHINE

• US 3,552,663 A
• Filed: 12/05/1968
• Issued: 01/05/1971
• Est. Priority Date: 12/05/1968
• Status: Expired due to Term

• Current Assignee: John Royals
• Original Assignee: John Royals
• Inventors: Royals, John
• Application Number:
  US04/781,550
• Time in Patent Office: 761 Days
• US Class Current: 241/92
• CPC Class Codes: A23G 9/045 of slush-ice, e.g. semi-frozen beverage
• CPC Class Codes: A47J 43/046 with tools driven from the bottom side
• CPC Class Codes: F25C 5/12 Ice-shaving machines
• CPC Class Codes: Y10S 241/17 Ice crushers

Abstract

A machine for producing shaved ice for use in making ice confections comprises an upright housing which includes a thermally insulated chamber for storing ice in chunk form, and a motor driven rotor located at the lower part of the chamber that includes blades on the upper face thereof which shave the ice and deliver it through a slot into a chamber from which it is ejected by centrifugal force into a discharge outlet. The rotor is removably attached to the motor shaft by fastening means accessible from the interior of the ice chamber so as to permit the rotor to be easily removed for cleaning of the rotor as well as the interior of the ice chamber.

Claims

1. In a machine for producing shaved ice, the combination comprising a vertically disposed housing structure including a thermally insulated upper chamber for receiving and storing ice in chunk form, a motor mounted within said housing structure below said ice chamber, said motor including a drive shaft extending vertically upward through a central opening in the bottom wall of said ice chamber, a coupling member made from a material having a low heat transfer coefficient secured at its lower portion to said motor drive shaft, an ice shaving rotor located in the lower part of said ice chamber and including upper and lower vertically spaced circular plates, said upper plate including at least one slot therein and an adjacently located knife for shaving and delivering the ice through said slot to a chambered portion established between said plates, said rotor further including a central bore receiving the upper end portion of said coupling member, removable means operable from within said ice chamber for retaining said rotor upon the upper end portion of said coupling member thereby enabling said rotor to be disconnected from said coupling member and removed upwardly through said ice chamber for cleaning and a discharge outlet for shaved ice located adjacent the periphery of said rotor intermediate said upper and lower plates.

2. A machine as defined in claim 1 for producing shaved ice wherein the distance between the confronting surfaces of the upper and lower plates of said rotor is progresSively increased in a radially outward direction to facilitate ejection of shaved ice into said discharge outlet.

3. A machine as defined in claim 1 for producing shaved ice wherein the inner surface of the lower plate of said rotor has a downward slope in a radially outward direction.

4. A machine as defined in claim 1 for producing shaved ice wherein the top surface of said upper plate has a downward slope in a radially outward direction.

5. A machine as defined in claim 1 for producing shaved ice wherein said ice chamber includes a fin which projects radially inward from the chamber wall and said rotor includes at least one slot extending radially inward from the periphery thereof adapted to be brought into alignment with said fin to enable said rotor to be removed upwardly through said chamber.

6. A machine as defined in claim 1 for producing shaved ice wherein said means for retaining said rotor upon the upper end portion of said coupling member includes an end plate larger than the central bore in said rotor and screw means extending through said end plate into a threaded bore in the end of said coupling member.

7. A machine as defined in claim 6 for producing shaved ice and which further includes a sealing ring clamped between the underface of said end plate and the surface of said rotor.

8. A machine as defined in claim 1 for producing shaved ice wherein the bottom wall of said ice chamber slopes in the direction of a drain opening located at one side of said chamber, and the low point of said bottom wall is displaced from said drain opening.

9. A machine as defined in claim 1 for shaving ice wherein said discharge outlet for shaved ice includes a spout which progressively enlarges in the pass-through direction of the ice.