초록

A concrete masonry unit having a top surface with a splitting pattern formed therein. The splitting pattern has a splitting groove which intersects at least one recessed region formed in the top surface.

대표청구항 ▼

[ The claimed invention is:] [1.] A pre-split concrete masonry unit adapted to be split in a masonry block splitting machine to yield more than two decorative units by means of a single cycle of the splitting machine, said pre-split unit comprising:(a) a first pre-split portion having opposed top an

[ The claimed invention is:] [1.] A pre-split concrete masonry unit adapted to be split in a masonry block splitting machine to yield more than two decorative units by means of a single cycle of the splitting machine, said pre-split unit comprising:(a) a first pre-split portion having opposed top and bottom surfaces, opposed front and rear surfaces joining those top and bottom surfaces and being generally perpendicular to them, an outboard side joining those top and bottom surfaces and being generally perpendicular to them, and an opposed inboard side joining those top and bottom surfaces and being generally perpendicular to them;(b) a second pre-split portion having opposed top and bottom surfaces which are generally coplanar with the respective top and bottom surfaces of the first pre-split portion, opposed front and rear surfaces joining the top and bottom surfaces of the second pre-split portion and being generally perpendicular to them, an outboard side joining the top and bottom surfaces of the second pre-split portion and being generally perpendicular to them, and an opposed inboard side joining the top and bottom surfaces of the second pre-split portion and being generally perpendicular to them; and(c) a web of concrete masonry material joining the respective inboard sides of the first and second pre-split portions, said web being adapted to be sacrificed during the splitting operation.