Rotary cutter blade

• US 4,331,300 A
• Filed: 05/05/1980
• Issued: 05/25/1982
• Est. Priority Date: 05/05/1980
• Status: Expired due to Term

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: General Electric Company
• Inventors: Hicks, William R., Madan, Bhim S.
• Primary Examiner(s): Goldberg, Howard N.
• Application Number:
  US06/146,312
• Time in Patent Office: 750 Days
• Field of Search: 241/199.12, 241/282.1, 241/282.2, 241/292.1, 83/356.3, 83/592
• US Class Current: 241/282.1
• CPC Class Codes: A47J 43/0722 Mixing, whipping or cutting tools
• CPC Class Codes: Y10T 83/501 With plural tools on a single tool support
• CPC Class Codes: Y10T 83/8791 Tool mounted on radial face of rotor

Abstract

A rotary cutter blade for use in an unfluted constant diameter bowl of a motor driven food processor with a rotatable hub mounted on a vertically oriented drive shaft where the blade comprises a pair of generally parallel straight razor blade-type cutters secured to and extending oppositely away from the hub and terminating closely adjacent the bowl inner surface. A pair of similarly directed generally parallel straight integral support arms are vertically spaced on and extend oppositely away from the hub. Support arms having an average width greater than the cutters for adequate support. Suitable means secures the cutters to the bottom of their respective arms such that the cutters extend from the center of rotation to the bowl with about 20% of the cutter extending between the end of the support arm and the bowl inner surface, the structural arrangement providing a cutter whereby a wide variety of foods are chopped finer, more uniformly, and faster with a minimum amount of splashing in operation while also substantially reducing the amount of stainless steel required for fabrication.

Claims

1. A rotary cutter blade assembly for use in an unfluted constant diameter bowl of a motor driven food processor with a rotatable hub mounted on a vertically oriented drive shaft and with the bowl being closed by a cover with an opening therein for feeding material to the bowl, the assembly comprising,

a pair of generally parallel straight razor blade-type cutters extending oppositely away from the hub,

said cutters terminating closely adjacent the bowl inner surface,

a pair of generally parallel straight integral support arms with a tapered leading edge and tip said arms being vertically spaced and extending oppositely away from said hub,

means integrally securing said cutters to respective arms with the cutters extending from the center of shaft rotation to the bowl inner surface to sweep substantially the entire inner bowl diameter,

the support arms extending over at least half of the length of its blade to provide at least fifty percent support thereof,

whereby a wide variety of foods are chopped finer, more uniformly, and faster with reduced splashing.

2. Apparatus as described in claim 1 wherein each cutter is secured to the bottom of its respective arm.

3. Apparatus as described in claim 2 wherein each cutter is secured to its respective support arm substantially parallel thereto.

4. Apparatus as described in claim 3 wherein the support arms have an average width greater than said cutters for support thereof.

5. Apparatus as described in claim 4 wherein said arms terminate so that substantially 20% of the cutter extends between the end of the support arm and bowl inner surface for maximum blade support with minimum splashing in operation.