sufficiently wide #01

The bores are laterally spaced apart in the base block and have diameters that are sufficiently wide so as to prevent deflected fastening assemblies engaging the graphite base block when the assemblies are loaded.

The method of claim 3 wherein central parts having a sufficiently narrow width are entirely removed to form nominally unexposed regions in place of the removed central parts.

The method of claim 6 wherein central parts not entirely removed but also not sufficiently wide to have the edges thereof set back by about twice the edge bias amount are set back such that a remaining central part is formed of predetermined minimum width.

US Pat. 4520269