A sound absorbing structure includes a perforated surface with a plurality of through-holes, a first cavity that has a portion extending non-parallel to a normal direction of the perforated surface, the first cavity being breathable between an interior and exterior of the first cavity via the plurality of through-holes existing in a first region of the perforated surface, and a second cavity that is breathable between an interior and exterior of the second cavity via the plurality of through-holes existing in a second region adjacent to the first region of the perforated surface.

A polyurethane foam block can include a base having a plurality of recesses and a top surface having a plurality of connective components protruding outward from the top surface where each connective component of the plurality of connective components can align with a recess of the plurality of recesses. The polyurethane foam block can include a plurality of sidewalls extending upward from the base and defining an interior and a plurality of partitions extending from the base to the top surface to divide the block into a plurality of cavities. A wall can include base blocks and header blocks. The header blocks can be shaped and constructed similarly to the base blocks with one exception being the header blocks can include an-upward facing channel cutout. The wall can include a beam extending through channels of header blocks.

A polyurethane foam block can include a base having a plurality of recesses and a top surface having a plurality of connective components protruding outward from the top surface where each connective component of the plurality of connective components can align with a recess of the plurality of recesses. The polyurethane foam block can include a plurality of sidewalls extending upward from the base and defining an interior and a plurality of partitions extending from the base to the top surface to divide the block into a plurality of cavities. A wall can include base blocks and header blocks. The header blocks can be shaped and constructed similarly to the base blocks with one exception being the header blocks can include an-upward facing channel cutout. The wall can include a beam extending through channels of header blocks.

In some embodiments, a building block includes alignment elements that interlink with a similar block with a positional offset. For example, the positional offset may be linear and/or rotational. For example, the second cinder block may be rotated with respect to the first block on which it is supports. Optionally, protrusions from the top of the block are positioned to interlink to the vertical slots at a fixed offset between the blocks. Optionally, the protrusions are formed by channels on a mold and/or a mold head. In some embodiments, a structure may be built stacked blocks. Optionally, a decorative face is configured to form a continuous decorated surface across offset blocks. In some embodiments a building block includes a calibration feature. For example, the block may include a ridge on the top of the block that may be shaved and/or ground to adjust the height of the block.

Brick or block walls are often constructed before fixtures, such as faucets, are installed. Sometimes this occurs because the fixture has not yet been selected, or because an installation location for the fixture is unknown. Thus, workers often need to modify the wall to receive fixtures once selected. However, other times, a builder may know where a fixture should be installed, and the type of fixture it will be. In these instances, a fixture-ready block may be selected based on the type and location of the fixture and installed at the proper location when the wall is built. The block may have apertures with dimensions selected based on a fixture that will be installed in the block. This may eliminate the need to drill or bore through the wall after it is finished in order to install the fixture.

A block is provided that includes a first side having a first predetermined load-bearing area and a first non-load-bearing area, the first predetermined load-bearing area having a first predetermined size and a first predetermined location. A second side having a second predetermined load-bearing area and a second non-load-bearing area, the second predetermined load-bearing area having a second predetermined size and a second predetermined location. Wherein the first non-load-bearing area does not extend beyond the first predetermined load-bearing area.

A block, block system and method of making a wall block. A block with multiple embodiments of a visually exposed surface having three dimensional shaped areas and three dimensional angular valleys or joints that can be used to construct a patio, wall, fence or the like; the multiple embodiments creating a more random and natural appearance. A mold box having a moveable liner and a stripper shoe that impart three dimensional shaped areas and three dimensional angular valleys or joints onto an exposed surface of a block. The moveable liner and stripper shoe also impart a parting line onto the exposed surface of the block.

Configurations of an electronic communication device, an electronic device or an antenna structure are described herein. The antenna structure includes a building construction block structure that provides a non-radiating portion of the antenna structure. A radiating element is formed on one side of the building construction block provides a radiating portion of the antenna structure. The radiating element may include a coating of a metallic element, such as copper. Further, the antenna structure includes a ground plane that is spaced apart from the radiating element on the building construction block structure. The ground plane may partially include a portion of the radiating element configured to adhere to the building construction block structure of the antenna structure. The antenna structure may passively transmit and/or receive signals and provisions flexibility of deployment in different configurations based on the applications.

Configurations of an electronic communication device, an electronic device or an antenna structure are described herein. The antenna structure includes a building construction block structure that provides a non-radiating portion of the antenna structure. A radiating element is formed on one side of the building construction block provides a radiating portion of the antenna structure. The radiating element may include a coating of a metallic element, such as copper. Further, the antenna structure includes a ground plane that is spaced apart from the radiating element on the building construction block structure. The ground plane may partially include a portion of the radiating element configured to adhere to the building construction block structure of the antenna structure. The antenna structure may passively transmit and/or receive signals and provisions flexibility of deployment in different configurations based on the applications.

The present disclosure relates to the building industry and in particular to a block for use in automated building construction. In one aspect, the block comprises a generally cuboid body having a top and a base, a length extending between a pair of opposed ends, and a width extending between a pair of opposed sides; the body including a plurality of hollow cores extending from said top to said base, and arranged in a row between said opposed ends; wherein each core has a rectilinear cross-sectional shape; and wherein the thickness of the block between each pair of adjacent cores is at least double the thickness of the block on all other sides of each core, so that the block is divisible into a plurality of substantially identical block portions, each portion including four walls of substantially uniform wall thickness about its core.