Abstract: A system for verifying the connection status of couplable elements employs a code member having a pattern defining a machine-readable optical code disposed thereupon. The code member is physically divided into a number of separate segments each having a portion of the pattern defined thereupon. These segments are affixed to a series of couplable elements so that when those elements are appropriately coupled together, the code segments will be in an aligned relationship so as to form a particular optically readable pattern of data indicative of proper coupling of the elements. Further disclosed are methods employing the system.

Abstract: A system for verifying the connection status of couplable elements employs a code member having a pattern defining a machine-readable optical code disposed thereupon. The code member is physically divided into a number of separate segments each having a portion of the pattern defined thereupon. These segments are affixed to a series of couplable elements so that when those elements are appropriately coupled together, the code segments will be in an aligned relationship so as to form a particular optically readable pattern of data indicative of proper coupling of the elements. Further disclosed are methods employing the system.

Abstract: The invention provides a microwave oven having an integral mixing assembly for agitating food inside of the microwave chamber during cooking. The mixing assembly includes a mixer shaft which is received through the top microwave chamber wall and which is capable of rotational movement. The mixer shaft is powered for rotational movement by a motor. The end of the mixer shaft disposed inside of the microwave chamber is adapted for releasable connection to one or more stirring or agitating means. A belt drive system and support mechanism are provided to control rotation of the mixer shaft.