摘要:
An engineered perimeter rim board with machined or otherwise-formed modular recessed receptacles receives and secures I-joists and other manufactured joists at pre-designated spaces along the length of the rim board. The rim board provides pre-measured joist securement locations and structural enhancements by “locking” the joists into position. Receptacles machined/cut into the rim board may be of various shapes, such as a rectangular recess with a flat planar back wall, a profiled recess with curved top and bottom compartments, and/or an angled recess wherein two sidewalls converge to create a recess without a back wall for receiving joists at positions other than perpendicular to the rim board. The preferred 90-degree receptacle profile provides an I-joist web receiving slot for additional lateral support to help prevent joists from buckling, twisting or rolling over.
摘要:
A multi-purpose, shaped, prefabricated, structurally-enhancing support block conforms to the side profiles of conventional I-joists. The support block is preferably installed by fastening it to the I-joist web, rather than to the I-joist flanges, thus preserving the integrity of the I-joist flanges. Further, support blocks may be used in mid-span where additional point-load support is needed, or at joist ends for additional load bearing and/or enhanced rim board, attachment and nailing capabilities. The preferred support block includes a load-jack portion for bearing compressive load and a web and flange support portion reinforcing the thin web of an I-joist to help prevent buckling, rolling, or twisting of the I-joist under peak load conditions.
摘要:
An engineered perimeter rim board with machined or otherwise-formed modular recessed receptacles receives and secures I-joists and other manufactured joists at pre-designated spaces along the length of the rim board. The rim board provides pre-measured joist securement locations and structural enhancements by “locking” the joists into position. Receptacles machined/cut into the rim board may be of various shapes, such as a rectangular recess with a flat planar back wall, a profiled recess with curved top and bottom compartments, and/or an angled recess wherein two sidewalls converge to create a recess without a back wall for receiving joists at positions other than perpendicular to the rim board. The preferred 90-degree receptacle profile provides an I-joist web receiving slot for additional lateral support to help prevent joists from buckling, twisting or rolling over.
摘要:
Apparatus and methods for spacing, securing, and stabilizing I-joists at their ends, and insulating and structural enhancing I-joist assemblies, are provided around the perimeter, or in the interior, of a floor or ceiling where ends of I-joists are located. Insulated blocking panels may comprise an insulating portion that provides a high-R-value and a structural portion which may comprise vertical panel(s) and optional integral support blocks that provide a profiled end surface for extending to the web of the I-joists. Alternatively, insulated blocking panels with flat, vertical end surfaces may be used with field-installed support blocks, or insulated blocking panels with profiled end surfaces may be used without any support blocks. The support blocks or profiled end surfaces of the insulated blocking panels extend to the web of each I-joist, to fill in the space between the I-joists near the I-joist ends, including a substantial amount of the space immediately adjacent the web of each I-joist. The preferred insulated blocking panels, therefore, insulated the outer perimeter of a floor or ceiling and also contribute vertical load carrying capability, and lateral shear and roll-over resistance.
摘要:
A series of disposable spray shields may be used singularly or in combination to shield the tire, wheel, or the floor around the tire individually, or in combination, during a treatment of the tire or the wheel. By including more than one radius in portions of the outer edges of the tire and wheel shields, or by providing an adjustable tire-receiving opening in the floor shield, a single set of shields may fit many different tires, tire inflations, vehicles, and wheels. The preferred shields are made from materials that can be shaped, cut, embossed, stamped or milled to create these radiused edges and openings that, when properly positioned by the user, will prevent undesirable tire and wheel treatment materials, coatings and paints from contacting certain pre-selected surfaces.
摘要:
An electrically conductive medium or high density lignocellulose particle board useful in the manufacture of flooring, wall paneling, and furniture functioning to establish static-free environments for the manufacture and operation of microcomputers and related equipment and protection from static electrical discharge problems generally. The particle boards comprise dry-formed, hot-consolidated mixtures of______________________________________ finely divided, electrically conductive carbon particles 0.2-5 particle board adhesive 1.5-15 lignocellulosic particles balance ______________________________________ In this composition the carbon particles are characterized by having specific surface areas of at least 20 square meters per gram. The lignocellulose particles comprise lignocellulose chips and flakes having width to length ratios within the range of from 1--1 to 1-20, and lignocellulose strands having width to length ratios within the range of from 1--1 to 1-40 and minimum widths of one millimeter.