English to Czech Law/Patents Patents breakway base plate

We claim:
1. A breakway base plate for mounting dental models in articulators comprising,
a base plate of a first size having an outer periphery, a central region having means for mounting said central region to an articulator, and a groove in said base plate between said central region and said outer periphery, said groove forming a closed curve defining a base plate of a second size, smaller than said first size, and having a groove profile for promoting material fracture along said groove, upon mechanical stressing, in preference to material fracture in base plate regions other than where said groove is disposed.
2. The apparatus of claim 1 wherein a first rib is disposed adjacently inward from said groove, thereby strengthening said base plate adjacent to said groove.

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