Static structures (e.g. – buildings) – Module or panel having discrete edgewise or face-to-face... – Having integral key
Reexamination Certificate
2007-02-13
2007-02-13
Canfield, Robert (Department: 3635)
Static structures (e.g., buildings)
Module or panel having discrete edgewise or face-to-face...
Having integral key
C052S100000, C052S561000, C052S604000, CD25S114000
Reexamination Certificate
active
11255565
ABSTRACT:
Generally, the invention is a dry stack building block for constructing a masonry wall. The dry stack unit has a front section having an outer surface, an inner surface, a bottom surface, and a top surface. The dry stack unit also has a rear section substantially parallel to the front section having an outer surface, an inner surface, a bottom surface, and a top surface. Two or more webs coupling the inner surface of the front section to the inner surface of the rear section have a top surface and a bottom surface. Two or more pairs of lugs may extend above the top surface of the front section and the top surface of the rear section. Each pair of lugs may have a first lug offset from a second lug in an axis perpendicular to the inner surfaces of the front section and the back section.
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National Concrete and Masonry Institute, “Design and Construction of Dry-Stack Walls”, Publication TEK 14-22, 6 pages (C) 2003.
URL: ftp://imgs.ebuild.com/woc/M99B020.pdf, Motarless Block Systems, Author: Pieter VanderWerf. 4 pages no date.
Bourque and Associates
Canfield Robert
FSN Research LLC
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