Mold for ventilated building block

Details Mold for ventilated building block Mold for ventilated building block

2011-08-16

2011-08-16

Gupta, Yogendra N (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By movable ejector means entering mold cavity

C249S187100, C249S207000, C425S468000, C425S469000

Reexamination Certificate

active

07997893

ABSTRACT:
A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.

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U.S. Appl. No. 12/292,376, filed Nov. 18, 2008 (pending).
PCT International Search Report of International Application No. PCT/TT 2009/000001 dated Jun. 30, 2010, 10 pages.

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