A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.

The present invention forms meshes between intersections of synthetic fiber cords while the synthetic fiber cords having a form in which a plurality of synthetic fiber filaments are plied and twisted is crossed in a knotless type, wherein a diameter (d) of the synthetic fiber cord satisfies the Equation (I), a maximum distance (DI) between the intersections adjacent to each other satisfies the Equation (II), and a minimum distance (D2) between the intersections adjacent to each other satisfies the Equation (III).

Since the present invention is made lightweight with a lower areal density than a conventional protective net for sports and increases rate of hole size with a small diameter of the synthetic fiber cord constituting the protective net, the present invention improves resistance against wind during manufacture of a protective net structure, and has excellent mechanical properties and thus provides excellent resistance against impact applied when a ball flies and bumps. Consequently, the present invention minimizes damage and extends a replacement cycle.

Further, the present invention improves visibility with the high rate of hole size, and also improves stability by effectively preventing penetration of the ball between the meshes.

Further, the present invention is easily mounted in the protective net structure and provides excellent flame retardancy and weather resistance.

The present invention forms meshes between intersections of synthetic fiber cords while the synthetic fiber cords having a form in which a plurality of synthetic fiber filaments are plied and twisted is crossed in a knotless type, wherein a diameter (d) of the synthetic fiber cord satisfies the Equation (I), a maximum distance (DI) between the intersections adjacent to each other satisfies the Equation (II), and a minimum distance (D2) between the intersections adjacent to each other satisfies the Equation (III).

Since the present invention is made lightweight with a lower areal density than a conventional protective net for sports and increases rate of hole size with a small diameter of the synthetic fiber cord constituting the protective net, the present invention improves resistance against wind during manufacture of a protective net structure, and has excellent mechanical properties and thus provides excellent resistance against impact applied when a ball flies and bumps. Consequently, the present invention minimizes damage and extends a replacement cycle.

Further, the present invention improves visibility with the high rate of hole size, and also improves stability by effectively preventing penetration of the ball between the meshes.

Further, the present invention is easily mounted in the protective net structure and provides excellent flame retardancy and weather resistance.

Methods of producing a graphic mesh for a solar module are described in which mesh parameters such as warp fiber thickness, weft fiber thickness, and open area size are determined to meet a target energetic efficiency and a chromatic effectiveness. In some embodiments, chromatic effectiveness is based on mesh count, where the mesh count is set according to a distance at which the mesh will be viewed when assembled into the solar module. The mesh has a plurality of warp fibers having the warp fiber thickness and a plurality of weft fibers having the weft fiber thickness, that are interlaced to form a plurality of mesh unit cells. A graphic appearance is printed into the mesh using a coloring substance, where the coloring substance is absorbed by the fiber material to form the graphic mesh.

Methods of producing a graphic mesh for a solar module are described in which mesh parameters such as warp fiber thickness, weft fiber thickness, and open area size are determined to meet a target energetic efficiency and a chromatic effectiveness. In some embodiments, chromatic effectiveness is based on mesh count, where the mesh count is set according to a distance at which the mesh will be viewed when assembled into the solar module. The mesh has a plurality of warp fibers having the warp fiber thickness and a plurality of weft fibers having the weft fiber thickness, that are interlaced to form a plurality of mesh unit cells. A graphic appearance is printed into the mesh using a coloring substance, where the coloring substance is absorbed by the fiber material to form the graphic mesh.

Methods of producing a graphic mesh for a solar module are described in which mesh parameters such as warp fiber thickness, weft fiber thickness, and open area size are determined to meet a target energetic efficiency and a chromatic effectiveness. In some embodiments, chromatic effectiveness is based on mesh count, where the mesh count is set according to a distance at which the mesh will be viewed when assembled into the solar module. The mesh has a plurality of warp fibers having the warp fiber thickness and a plurality of weft fibers having the weft fiber thickness, that are interlaced to form a plurality of mesh unit cells. A graphic appearance is printed into the mesh using a coloring substance, where the coloring substance is absorbed by the fiber material to form the graphic mesh.

Methods of producing a graphic mesh for a solar module are described in which mesh parameters such as warp fiber thickness, weft fiber thickness, and open area size are determined to meet a target energetic efficiency and a chromatic effectiveness. In some embodiments, chromatic effectiveness is based on mesh count, where the mesh count is set according to a distance at which the mesh will be viewed when assembled into the solar module. The mesh has a plurality of warp fibers having the warp fiber thickness and a plurality of weft fibers having the weft fiber thickness, that are interlaced to form a plurality of mesh unit cells. A graphic appearance is printed into the mesh using a coloring substance, where the coloring substance is absorbed by the fiber material to form the graphic mesh.

An intumescent mesh comprises a mesh structure woven from strands that define openings in the mesh structure, the strands being made from non-metal materials. An intumescent material is applied to the strands, the intumescent material being carried such that, in an inactivated state the intumescent material permits airflow through the openings in the mesh structure, and in an activated state, the intumescent material swells and restricts airflow through the openings in the mesh structure. The intumescent mesh is able to withstand a temperature of at least 980° C. for at least 10 minutes prior to failure.

An intumescent mesh comprises a mesh structure woven from strands that define openings in the mesh structure, the strands being made from non-metal materials. An intumescent material is applied to the strands, the intumescent material being carried such that, in an inactivated state the intumescent material permits airflow through the openings in the mesh structure, and in an activated state, the intumescent material swells and restricts airflow through the openings in the mesh structure. The intumescent mesh is able to withstand a temperature of at least 980° C. for at least 10 minutes prior to failure.

The invention relates to a method for increasing the wear resistance of a metal screen cloth made of wire, the method comprising treating a surface of a metal screen cloth by means of a thermochemical surface layer method for increasing the surface hardness and the wear resistance of metals, wherein the thermochemical surface layer method changes the structural conditions of the treated metal to a predetermined depth of penetration, wherein a hard surface layer is formed in the metal surface. A corresponding device and a screen cloth and a screen panel with increased wear resistance are also part of the invention.