Mixing machine with associated bowl guard system

• US 8,308,344 B2
• Filed: 01/24/2008
• Issued: 11/13/2012
• Est. Priority Date: 01/24/2008
• Status: Expired due to Fees

• Current Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Original Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Inventors: Short, Ellis G., Huang, Joseph C., Schnipke, Janice Jones
• Primary Examiner(s): Marcheschi, Michael
• Assistant Examiner(s): HURST, JONATHAN M
• Application Number:
  US12/019,024
• Publication Number:
  US 20090190438A1
• Time in Patent Office: 1,755 Days
• Field of Search: 366/347, 366/197, 384/22, 384/148, 384/225, 384/232, 384/233, 384/615
• US Class Current: 366/347
• CPC Class Codes: A47J 2043/04481 with a mixing unit pivotable on the support
• CPC Class Codes: A47J 2043/0449 with a mixing unit detachable from the support
• CPC Class Codes: A47J 43/0727 Mixing bowls
• CPC Class Codes: A47J 43/0755 for machines with tools driven from the upper side
• CPC Class Codes: B01F 27/805 wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
• CPC Class Codes: F16P 1/02 Fixed screens or hoods

Abstract

A mixing machine includes a mixer body including a head portion that extends over a bowl receiving location. An output member extends downward from the head portion toward the bowl receiving location. A drive system is linked to the output member for effecting planetary rotation of the output member. A bowl guard support is at an underside of the head portion. The bowl guard support provides a circular support path in the form of a groove extending about a periphery of the bowl guard support. A bowl guard assembly includes a housing member and a catch member extending from a surface of the housing member. The catch member is received within the groove to maintain a vertical position of the bowl guard assembly while permitting rotation of the bowl guard assembly. The catch member is movable relative to the housing member and is biased into the groove to seat therein.

Claims

1. A mixing machine, comprising:

a mixer body including a head portion that extends over a bowl receiving location;

an output member extending downward from the head portion toward the bowl receiving location;

a drive system linked to the output member for effecting planetary rotation of the output member;

a bowl guard support at an underside of the head portion, the bowl guard support providing a circular support path in the form of a radially outwardly facing track extending about a periphery of the bowl guard support; and

a bowl guard assembly including a moveable member comprising a housing member with a circular rim and a ball and spring catch member with the ball biased to extend from a radially inward surface of the circular rim and into the track to maintain a vertical position of the moveable member while permitting rotation of the moveable member;

the bowl guard support is configured such that the moveable member can be removed from the bowl guard support by a single vertical movement in the downward direction by which the ball is moved radially outward against the bias of the spring.

2. The mixing machine of claim 1, wherein the track includes at least one detent that aligns with the ball when the moveable member is in a bowl guarding position.