Abstract: Grate lifters for moving grating assemblies relative to supporting structures within which the grating assemblies are installed. A grate lifter may include a main body having a first end and a second end longitudinally opposite to the first end. A grate lifter may also include at least one hook member operably engaged with the main body at the first end and configured to engage one of at least one surface bar of a grating assembly and at least one cross member of the grating assembly. A grate lifter may also include at least one tab operably engaged with the main body at the second end and configured to engage at least one lock bar of the grating assembly. The at least one tab may be configured to be adjustable from an initial position to a bent position to engage the at least one lock bar of the grating assembly.

Abstract: A system and method forms protruding features on a surface of a substrate through the use of multiple laser beams. The protruding features collectively define an array that results in a non-slip feature or non-slip element/texture on the substrate for installation in slippery environments for safe passage and traversing by persons thereabove. The plurality or multiple laser beams are carried by a moveable platform coupled with a CNC machine having instructions or logic that is programmed to form the protruding features at precise locations on the substrate. The multiple laser beams are angled relative to a center axis, typically more than 10 degrees relative to vertical. When three lasers are used, each laser beam is directed to a sector around a beam impingement point where powder material has been deposited to be liquefied by the beams. The beams are in respective sectors relative to the beam impingement point.

Abstract: A grate hatch and folding barrier assembly has a pair of doors that open in a cabinet-style manner and lie flat or generally flat atop a support structure within which the grate hatch and folding barrier assembly is installed. A folding barrier gate assembly may be deployed from a collapsed position to complete a four-sided barrier around the hatch or opening. The folded barrier gate assembly has two opposing barrier gates, and a pair of secondary barrier gates that connect with and extend between the two opposing barrier gates to form the four-sided barrier around the hatch opening when fully deployed. When the barrier is no longer needed, the barrier assembly may be folded or collapsed and stored in the opening beneath or below the doors and the doors may then be closed.

Abstract: A heavy cycle grating system incorporating a plurality of toothed support members to support a plurality of grate slats while securing them within grating assembly. This configuration allows the present grating system to accommodate higher volume of heavy use, such as found with vehicular applications. Further provided is a grating assembly configured for longer life and improved damage and wear-resistance while simultaneously reducing noise generated during use thereof.

Abstract: A heavy cycle grating system incorporating a plurality of toothed support members to support a plurality of grate slats while securing them within grating assembly. This configuration allows the present grating system to accommodate higher volume of heavy use, such as found with vehicular applications. Further provided is a grating assembly configured for longer life and improved damage and wear-resistance while simultaneously reducing noise generated during use thereof.

Abstract: A grating assembly and a method for manufacturing the same. The grating assembly comprises a plurality of crossbars that are secured together. The grating assembly includes a decorative image that is visible when approaching the grating. The image is formed by providing one or more image sections on one or more of the crossbars of the grating assembly. Each of the crossbars has a front surface and an opposed back surface and the one or more image sections are provided on one or both of the front surface and the back surface.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system typically includes longitudinal deep bars, axial crossbars, longitudinal filler bars seated on the crossbars between the deep bars and axial joining bars which join the deep bars and filler bars to one another. The crossbars are inserted lengthwise through slots formed in the deep bars. The joining bars are inserted lengthwise into holes formed in the deep bars and filler bars. The joining bars are typically above and aligned with the crossbars. The upper surfaces of the crossbars and filler bars are substantially flush with one another to form most of the upper surface of the grating system on which vehicular and pedestrian traffic typically travel.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are typically seated on the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are seated on the deep bars with the crossbars typically within upwardly opening notches formed in the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are seated on the deep bars with the crossbars typically within upwardly opening notches formed in the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are seated on the deep bars with the crossbars typically within upwardly opening notches formed in the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system provides enhanced see through characteristics and typically includes longitudinal deep bars, axial crossbars, axial filler bars between the crossbars and longitudinal joining bars which join the crossbars and filler bars to one another. The deep bars are part of a first subassembly and the other bars are part of a second subassembly which may be lowered to join the two subassemblies to one another. The crossbars and filler bars are seated on the deep bars with the crossbars typically within upwardly opening notches formed in the deep bars. The joining bars are typically above and aligned with the deep bars. The upper surfaces of the crossbars and filler bars are usually substantially flush with one another. The grating system is configured to support vehicular and pedestrian traffic.

Abstract: A grating system includes a first welded subassembly and a second non-welded subassembly joined to one another. The first subassembly includes spaced elongated bearing bars and spaced elongated cross bars extending transversely to the bearing bars. The second subassembly includes spaced elongated filler bars and spaced elongated cross bars extending transversely to the filler bars. The filler bars extend in the same direction as the bearing bars and are disposed in sets between adjacent bearing bars. The bearing bars include spaced notches in which are received the first subassembly cross bars and the second subassembly cross bars, which are aligned above the first subassembly cross bars. The subassemblies have respective upper surfaces which are flush with one another. The first subassembly is configured to support vehicle traffic and the second subassembly is configured to support pedestrian traffic.

Abstract: A grating system includes a first welded subassembly and a second non-welded subassembly joined to one another. The first subassembly includes spaced elongated bearing bars and spaced elongated cross bars extending transversely to the bearing bars. The second subassembly includes spaced elongated filler bars and spaced elongated cross bars extending transversely to the filler bars. The filler bars extend in the same direction as the bearing bars and are disposed in sets between adjacent bearing bars. The bearing bars include spaced notches in which are received the first subassembly cross bars and the second subassembly cross bars, which are aligned above the first subassembly cross bars. The subassemblies have respective upper surfaces which are flush with one another. The first subassembly is configured to support vehicle traffic and the second subassembly is configured to support pedestrian traffic.

Abstract: A grating system includes a first welded subassembly and a second non-welded subassembly joined to one another. The first subassembly includes spaced elongated bearing bars and spaced elongated cross bars extending transversely to the bearing bars. The second subassembly includes spaced elongated filler bars and spaced elongated cross bars extending transversely to the filler bars. The filler bars extend in the same direction as the bearing bars and are disposed in sets between adjacent bearing bars. The bearing bars include spaced notches in which are received the first subassembly cross bars and the second subassembly cross bars, which are aligned above the first subassembly cross bars. The subassemblies have respective upper surfaces which are flush with one another. The first subassembly is configured to support vehicle traffic and the second subassembly is configured to support pedestrian traffic.