.~ Obtaining plural product pieces from unitary workpiece {5}
413
.~.~ Breaking through weakened portion
DEFINITION
Classification: 29/413
Breaking through weakened portion:
(under subclass 412) Process in which the stock element is provided with a localized area which has been reduced in strength so as to be more readily fracturable than the remainder of the stock element comprising fracturing the stock element through such area.
SEE OR SEARCH THIS CLASS, SUBCLASS:
414, for a process of dividing a stock element into product members through a modified portion of the stock element.
SEE OR SEARCH CLASS
83, Cutting,
861+, for cutting other than through the thickness of a workpiece (stock element) which may be to weaken the workpiece for subsequent breaking, especially, search subclasses 875+ for grooving and subclasses 879+ for scoring.
225, Severing by Breaking or Tearing, 2, for a method of preliminarily weakening combined with breaking or tearing and subclasses 94+ for apparatus to preliminarily weaken combined with apparatus to break or tear.
428, Stock Material or Miscellaneous Articles,
571, for metallic stock material having a portion weakened for severing.
