3164results about "Single unit pavings" patented technology

A paver system comprising a plurality of paver pieces and at least one substrate. Each of the paver pieces has a top surface and a bottom surface. The bottom surface of the paver pieces is configured for mating with the upper surface of the substrate, whereby paver pieces coupled to the substrate are prevented from moving laterally.

An overhead gas distribution electrode forming at least a portion of the ceiling of a plasma reactor has a bottom surface facing a processing zone of the reactor. The electrode includes a gas supply manifold for receiving process gas at a supply pressure at a top portion of the electrode and plural pressure-dropping cylindrical orifices extending axially relative to the electrode from the gas supply manifold at one end of each the orifice. A radial gas distribution manifold within the electrode extends radially across the electrode. Plural axially extending high conductance gas flow passages couple the opposite ends of respective ones of the plural pressure-dropping orifices to the radial gas distribution manifold. Plural high conductance cylindrical gas outlet holes are formed in the plasma-facing bottom surface of the electrode and extend axially to the radial gas distribution manifold.

A deck plank (12) readily attaches to an engagement clip (46) when force is applied over the plank. When a plurality of clips are attached to underlying joists in parallel with the joists, and a plurality of deck planks are oriented to the clip perpendicular to the joist and pushed down over clips, a secure deck structure is provided. Each clip has a pair of horizontal flanges (52 and 54), which snap over a plurality of ledges (42 and 44) in a channel under each plank. The deck planks (12) are embossed (14) so as to form a slip resistant surface to be walked upon. The plastic extruded deck plank (12) resists rot, deterioration and insect infection found in current wood products. The deck plank assembly is simple enough so that a homeowner or do-it-yourselfer can install or alter it with minimal effort and direction.

Multiple polymeric panels molded as a rigid integral body having a planar top surface and a bottom grid structure are interlocked together mechanically along side edges. Each side edge has alternating upwardly and downwardly facing steps with concave dimples on one and mating convex projections on the other for securely interlocking adjacent panels to each other. The steps of adjacent panels interlock with each other to form a complete floor system. The multiple polymeric panels can be molded to simulate flooring materials such as brick or overlaid with sections of linoleum, carpet, synthetic grass, tile or wood flooring. Alternately, the assembled panels can be covered with a sheet of decorative material.

An irregular, tessellated building unit comprises x primary elements, wherein x is an integer equal to or greater than 1. The primary element is a rotational tessellation having a plural pairs of sides extending in a generally radial direction from plural vertices, respectively. In each pair, the two sides are rotationally spaced by an angle that is divided evenly into 360 degrees. Preferably, all of the sides are irregularly shaped. In one preferred embodiment all six sides are irregularly shaped, images of each other and comprise mid-point rotations. As a result, any side of any unit can mate with any other side of any other unit. Optionally, spacers are provided on the sides of each unit. A wide variety of units may be constructed having different numbers and arrangements of primary elements. As all the units are combinations of primary elements, they readily mate with each other. A surface covering comprises a multiplicity of units assembled to form a continuous surface without overlap between units and without substantial gaps between units. A structure, such as a wall or column can be formed of building units of the invention. Because of the irregular side configurations, and different sizes and shapes of individual units, the resulting surface or structure has a natural, non-repeating pattern appearance. Optionally, minor surface and edges variations are made from unit to unit to further enhance the natural appearance of the surface covering or structure.