Abstract: A modular ladder system includes a first ladder module comprising a first plurality of ladder steps; a second ladder module comprising a second plurality of ladder steps; and a ladder base, the modular ladder system is configurable in an unassembled configuration and an assembled configuration; wherein: in the unassembled configuration, the first ladder module is detached from the second ladder module and the first and second ladder modules are stacked on the ladder base; and in the assembled configuration, the first ladder module is coupled to the ladder base and the second ladder module is attached to the first ladder module opposite the ladder base to define a ladder extending upward from the ladder base.

Abstract: A configurable scaffolding system is configured to facilitate simplified, reconfigurable access to a plurality of horticulture racks. With use of the configurable scaffolding system, operator convenience and safety are improved, and increased plant density in horticultural applications can be achieved.

Abstract: A modular attic walkway system for creating a walkway across attic joists which includes a plurality of attic joists each has a top face. A plurality of platforms is removably attached to the top faces such that each platform traverses between adjacent attic joists. Each of the platforms is releasably interlocked with an adjacent one of the platforms. Each platform includes a panel. The panel has a top surface, a bottom surface, and a perimeter surface which extends between the top and bottom surfaces. The perimeter surface includes a first mating edge, a second mating edge, a first lateral edge, and a second lateral edge. The first mating edge includes a tongue cutout which extends inwardly from the first mating edge toward the second mating edge. A tongue extension extends outwardly away from the second mating edge and releasably interlocks with a tongue cutout of an adjacently positioned panel.

Abstract: The invention concerns a method for installing a hatch (34) to a subsea structure (10) by connecting the hatch to the subsea structure by at least one hinge (20) having a first mounting portion (21), a second mounting portion (22), a flexible portion (23) interconnecting the first and second mounting portion allowing a pivot connection between the first and second mounting portion. The installation steps comprise •—inserting a protrusion (23) of the first mounting portion (21) into an installation hole arranged in the subsea structure (10), •—inserting a protrusion (24) of the second mounting portion (22) into an installation hole arranged in the hatch (34), thereby •—engaging the first mounting portion (21) of the hinge (20) for anchorage with the subsea structure (10) and engaging the second mounting portion (22) for anchorage with the hatch (34) thereby arranging for the hatch to pivot between a closed and an open position about a pivot axis provided by the flexible portion of the hinge.

Abstract: Cradle assemblies for supporting a door of an aircraft to facilitate servicing the door, and arrangements and methods for the same are provided. In one example, a cradle assembly includes a base and a cradle support subassembly pivotably coupled to the base. The cradle support subassembly is configured to support an outer section of the door.

Abstract: A flooring system configured to be installed in a multi-story building wherein the flooring system is operably coupled with a portion of the superstructure of the building. The flooring system includes a first layer of corrugated metal panel that is position in a horizontal orientation and is operable to superposed at least a portion of the superstructure of the building. A plurality of mounting studs are secured to a portion of the superstructure of the building and extend upward through the first layer. A second layer of corrugated metal panel is superposed the first layer and secured thereto. The second layer has an adhesive layer applied to the upper surface thereof. A third layer is superposed the upper surface of the second layer. The third layer is manufactured from a different material than the first and second layer. A structural foam layer is injected intermediate the third and second layer.

Abstract: An all welded signal light assembly transportable in secure, stacked condition with a plurality of all welded signal light assemblies of like construction.

Abstract: A wire rope tension grid is a walking surface comprised of interwoven wire rope. The wire rope is supported by a framework of steel angle and tubing. The framework is supported by mounts that are hung from the support beams in the ceiling of a structure, often a performing art center, a television studio, a black box theater, museum dioramas, theme park scenes, live animal pens, or other entertainment venues. These grids are not intended for public usage, but rather are intended for operation staff. New improvements to these grids are listed in this document.

Abstract: An apparatus that provides a platform for selectively deployable worker access with fall protection to at least a portion of the top of a container disposed above the ground. The apparatus includes a gate and a ladder extension that selectively operates in an extended mode and a retracted mode with respect to the gate and with respect to an emergency egress ladder extending beneath the platform.

Abstract: A vandal resistant swing seat generally comprises a tension member and a rubber cover. The tension member comprises a body connected to end connectors that attach to suspension chains. The body includes a tension component comprising an elongate fabric band having a front edge having a fold, and a rear edge having a fold, and a protection component comprising a metal cable disposed in each fold. The flexible metal wires prevent the tension fabric from being cut. In an alternate embodiment, the fabric band is comprised of a central mesh band of a first fabric and front and rear edge bands of a second fabric of higher tensile strength.

Abstract: A method produces a hardened galvanization of a continuously-running rolled steel strip. The strip is immersed in a coating tank containing a bath of a liquid metal mixture, e.g. zinc and aluminum, to be deposited on the strip, and permanently circulated between the coating tank and a preparation device. The temperature of the liquid mixture is deliberately lowered in order to reduce the iron solubility threshold and sufficiently high for initiating, in the preparation device, the fusion of at least one Zn—Al ingot in an amount necessary for compensating for the liquid mixture used for deposition on the strip. The device is implemented so that the circuit for circulating the liquid mixture is thermally optimized.

Abstract: A scaffold plank and toeboard system provides a fully integrated system where toeboards are easily securable to provide perimeter protection about different working platform configurations. The scaffold advantageously includes a series of securing ports that allow male connectors of the system toeboards, or male connectors of generic toeboard securing brackets to be appropriately placed for maintaining wooden, metal or other toeboard material that is basically fabricated onsite according to the material available. The scaffold securing plank also cooperates with other equipment, guard rails, plank support intermediary ledgers etc. to use the securing ports to simplify installation and securement thereof.

Abstract: A free-standing demountable window safety assembly adapted to rest, in use, on the floor inside a room containing a window opening in a wall, and against the wall containing the window, without engaging with the window opening, said assembly comprising:—•(i) at least two feet (125, 126) adapted to engage with the room floor˜(ii) at least two arms (121A, 121B, 135A, 135B) adapted to engage with the room wall adjacent to but spaced away from the window opening;˜(iii) at least two side portions (125, 123A, 135A, 133A) each supporting an arm;˜(iv) at least one linking member (111A, 111C) adapted to link opposing side portions or opposing feet in a substantially rigid fashion. The invention also includes methods of manufacturing and using such safety assemblies.

Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can comprise a plurality interconnected polygonal shapes defining a top standing surface. The platform can be a grating that has load bearing properties and that can be cast from a mold. The platform includes a perimeter wall, a surface portion, and one or more reinforcement walls. A height or thickness of the surface portion is less than a height or thickness of the perimeter wall and/or the reinforcement walls.

Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can rotate from a transport configuration to an operable configuration. The platform in the operable configuration is approximately perpendicular to the support post. The platform has a tree contact point positioned above a plane of the platform when the platform is in the horizontal position. The platform can comprise a plurality of hexagons with groups of three hexagons intersecting at a point and forming a honeycomb pattern defining a top standing surface on which a hunter can stand. The contact point is configured to create an over-center locking action. The tree stand can also include a stackable ladder coupled to the platform.

Abstract: The present invention relates to playground equipment and, more particularly, to a playground apparatus incorporating modular construction, which permits rapid simplified assembly, modification and universal arrangement of playground equipment modules without tools.

Abstract: A toe board of a scaffold system and a method of producing the toe board, the toe board configured to be attached to a working or walking surface of the scaffold in order to limit lateral movement upon the surface, the toe board made from a steel board unit having a hollow profile enclosed by covers and mounting units inserted at each end with multiple types of fastenings.

Abstract: The invention includes an access structure integration assembly and an integrated system using the assembly. An access structure integrated assembly includes at least one channeled structure and at least one joist socket slidingly engaged with the channeled structure. The channeled structure is configured to secure to a base structure, such as a suspended work platform system, and the joist socket is configured to secure to a second structure, such as a supported work platform system. An integrated system includes a base structure, a second structure and at least two integration assemblies, each assembly including a channeled structure secured to the base structure and a joist socket secured to the second structure and slidingly engaged with the channeled structure.

Abstract: A scaffold including a pair of scaffold frames has a scaffold platform supported by the frames, which is defined by a series of planks and includes an opening. The opening is formed by a pair of transverse support members that extend between the pair of planks at a location between the scaffold frames. Partial-length scaffold planks, having first and second ends and a length less than the space between the scaffold frames, are supported by the transverse support members and occupy the space between the planks other than at the opening. The transverse support member includes spaced-apart plank engagement sections that rest on upwardly facing surfaces of the planks, and a plank end support member that extends between the plank engagement sections. A scaffolding platform system and a method of forming a scaffolding platform are also disclosed.

Abstract: A tunnel structure includes a frame; a continuous plate fixed to the frame in order to protect passing-through pedestrians; supporting legs hinged to the frame; and a connecting section supported by the frame, the connecting section configured to enable the combination of multiple tunnel structures.

Abstract: A restraint system for restraining a worker to a platform of an aerial device comprises a restraint liner and a platform strap. The restraint liner includes four sidewalls, a floor, a lip, an interior anchor, and an exterior anchor. The floor may be coupled to one end of the four sidewalls, while the lip may be coupled to the opposing end of the four sidewalls and may extend therefrom. The interior anchor may be positioned on an interior surface of a first sidewall and operable to couple to a liner strap coupled to a worker. The exterior anchor may be positioned on an exterior surface of the first sidewall. The platform strap may be coupled to the exterior anchor and operable to couple to the platform.

Abstract: Various implementations described herein are directed to a scaffold bracket. In one implementation, the scaffold bracket may include a mounting bracket having a first face and a second face opposite of the first face. The scaffold bracket may also include a first scaffolding node attached to the first face and configured to couple to a first member. The scaffold bracket may further include a second scaffolding node attached to the first face and configured to couple to a second member.

Abstract: A modular elevated walkway system elevates a person and places them in close proximity to an engine compartment to enable the person to conduct maintenance on components of the engine. The system includes a plurality of platform units. Each of the platform units is coupled to an adjacently positioned one of the platform units. Each of the platform units includes a platform having a planar upper surface configured for supporting the weight of a person standing thereupon. A plurality of legs is coupled to and extends downwardly from the associated platform. The legs are configured to support the associated platform above a ground surface.

Abstract: A scaffolding system for an attic area has a plurality of board members. An attachment device is sued for securing a first board member to an adjoining board member, wherein the attachment device comprises a pair of removable attachment devices formed on a pair of opposing sides of each board member.

Abstract: Mobile scaffolding units include a vehicle for movement across ground surface, a stationary platform rigidly fixed to the vehicle at a predetermined immovable height above the ground surface, and a gantry platform operatively connected to the stationary platform for movements between a retracted position where the gantry platform is nested adjacent to the stationary platform, and an extended position wherein the gantry platform extends laterally outwardly from one or another lateral side of the stationary platform to provide an operator on the gantry platform an extended horizontal reach laterally of the vehicle. The mobile scaffolding units allow an operator to work at elevated heights and with lateral reach in one area of a work zone (e.g., to trim roadside vegetation) and then move to another area of the work zone without requiring an operator to dismount from the gantry platform.

Abstract: A collapsible tree stand system for supporting a user at an elevated position on a tree includes a tree engagement member having a mounting plate, a plurality of tree gripping teeth, a retention strap and a connection member. The system also includes a removable, collapsible tree stand having an integrated frame with a gapped section for mating with the connection member, and for supporting a seat, a central platform and a pair of storage compartments thereon.

Abstract: A cable-securement member secured to a platform includes a longitudinal passage extending through open first and second longitudinal ends and is sized and shaped for allowing the cable to move through the longitudinal passage from the first longitudinal end to the second longitudinal end. The longitudinal passage has a curved portion adjacent the second longitudinal end configured to resiliently bend a cable body of a cable as the cable enters the curved portion. The cable is configured to automatically rebound toward its unloaded state in the curved portion as a stop of the cable moves past the slot and exits the passage through the second longitudinal end so that the cable body exits the curved portion through a longitudinal slot and the stop is engageable with the cable-securement member to releasably lock the cable relative to the cable securement member.

Abstract: Apparatus (10) and a method for supporting one or more turbomachines, with the apparatus including a first package (12) module including a first frame (32) and a fluid-handling machinery mount coupled to the first frame, the fluid-handling machinery mount being configured to support one or more fluid-handling machines (42). The apparatus also includes a second package module (14) including a second frame (38) and a heat exchanger mount coupled to the second frame, the heat exchanger mount being configured to support one or more process fluid coolers (46), and the second package module being coupled to the first package module. The apparatus further includes an access passage (16) extending between the first and second modules and configured to enable personnel to proceed therethrough.

Abstract: A wire rope tension grid is a walking surface comprised of interwoven wire rope. The wire rope is supported by a framework of steel angle and tubing. The framework is supported by mounts that are hung from the support beams in the ceiling of a structure, often a performing art center, a television studio, a black box theater, museum dioramas, theme park scenes, live animal pens, or other entertainment venues. These grids are not intended for public usage, but rather are intended for operation staff. New improvements to these grids are listed in this document.

Abstract: A platform system for self-leveling a stage is provided and includes one or more module assemblies and one or more supports. Each module assembly includes one or more receiving members for engaging and removably securing the one or more supports. Each support includes an elongate portion, an extendible portion extendible from and lockingly engageable with the elongate portion, a base member removably attached to the extendible portion, and an actuator assembly secured to the elongate portion and in communication with the extendible portion. The actuator assembly is configured to rapidly extend and lockingly engage the extendible portion and the base member to provide self-leveling of each of the one or more module assemblies of the stage as the base member engages an underlying surface.

Abstract: A scaffolding system for an attic area has a plurality of board members. An attachment device is provided for securing a first board member to an adjoining board member.

Abstract: A plank, such as a scaffold plank, is disclosed herein. In accordance with at least some embodiments, the scaffold plank comprising: a structure having a deck portion having surface upon which a worker can be supported, the portion including a plurality of perforations, the structure further having a pair of side portions extending from the surface, the side portions each including a flange with a bottom surface and a closed surface physically contacting the side portions; and a plurality of hook structures configured to receive and be supported by a scaffold system.

Abstract: A panel system is recited that includes a first panel having a periphery. The panel includes a first plastic layer having a periphery and a second plastic layer opposed and spaced apart from the first layer. The second layer also has a periphery. The first and second layers define a first cavity therebetween. A first in-situ foam core is disposed in the cavity and has a thermal bond to the first and second plastic layers. The panel is capable of supporting 0.1 to 0.5 lbf/in2.

Abstract: A scaffolding (20) comprises vertical frame elements (22), crossbeams that extend therebetween, flooring units (27) which have mounting aids (28) to be mounted on the crossbeam (21), and at least one anti-release device (40) for securing the flooring units (27) against being released. The anti-release device (40) can be removably connected to the crossbeam (21) and has a securing member (41) which corresponds to the length of the crossbeam, is to be placed on the mounting aid (28), and is fitted with at least one hook-shaped fastening element (42) that penetrates a hole (33) located in the crossbeam and partially embraces the crossbeam (21) in the anti-release state. One end of the securing member (41) is provided with a pivotable plate which is fastened by means of a hinge and is pivoted from the open position into the locking position and retained by means of a spring mechanism (60).

Abstract: An overlap arrangement of at least two decking planks, for example for construction scaffolding, includes first and second decking planks composed of metal. Each decking plank has a decking surface composed of sheet metal, which is provided with essentially round passage holes, which are delimited, in each instance, by a beaded and circumferential hole edge. The first decking plank and the second decking plank are braced, relative to one another, without play, in releasable manner, using a locking screw composed of metal, to prevent displacement relative to one another in a displacement plane that runs parallel to their decking surfaces, and to prevent lift-off from one another, with force fit and shape fit, wherein the locking screw is screwed in, with its thread, without any plastic deformation and without plastic widening of the hole edge of a passage hole of at least one of the decking planks.

Abstract: A scaffolding system comprises two sets of boards 30o to 30s and 30u to 30z laid side by side on transoms 32, 34 etc with their ends aligned. The ends of the boards 30o etc are interconnected by a connector 40 tied to ledgers 36, 38 of the scaffolding by means of cable ties 42 passed through perforations 40e in a dependent flange 40d of the connector 40. The perforations 40e are spaced apart along the flange 40d by an amount equal to the pitch p of the scaffolding. The connector has an upper strip 40a overlying the boards and a lower strip 40b underlying the boards and joined to the upper strip by a web 40c. The web 40c separates the upper and lower strips 40a and 40b by an amount sufficient to receive the boards 30o etc snugly. Preferably the boards and the connector are formed of the same synthetic plastics material.

Abstract: This stage frame assembly includes a horizontal frame member configured to join and support adjacent, horizontal frame members. The performance stage frame member has a shaped cross-section wherein the frame member includes a top lip and a chamfer extending from the top lip. A plurality of frame members capture and support a stage deck wherein the stage deck is flush with the top lip.

Abstract: A plank (10) used to construct a platform such as a catwalk (C3, C4) extending about the exterior or interior of a building (B) includes first and second generally horizontal sections (12, 24). The second generally horizontal section of the plank extends from one side of the first section. During construction of the platform, the first section of one plank overlaps the second section of an adjacent plank. A third generally vertical section (52) of the plank extends generally perpendicularly from one side of the second section and includes lips (58, 60) at its inner and outer ends for attaching the plank to toe boards (40,44) to secure the plank to the frames. When installed, the planks extend from a side of the building. The resulting catwalk extends either in a straight line, or is curved, depending upon the amount of overlap the first and second sections of the respective planks.

Abstract: A collapsible man-lift for use in the hollow tower portion of a wind turbine includes a support frame assembly, a foldable floor assembly and a collapsible cage assembly. The support frame assembly includes a sub-assembly built in a triangular shape. The foldable floor assembly and the collapsible cage assembly are connected to the triangular sub-assembly portion of the support frame assembly.

Abstract: Work platforms are generally discussed herein for providing expanded work space for their users with specific discussions extended to portable work platforms that are mountable on vertical or horizontal poles and the like, such as utility poles, for expanding useful work space. The portable work platform has a deck attached to a base by a beam, which is made from a non-conducting material. A strap assembly having a webbing is connected to the base and configured for use with a ratchet mechanism to tension the webbing around a pole to mount to the platform. The beam enhances electrical isolation between the deck and the base.

Abstract: A scaffolding module comprising: a frame that, when in an erected configuration, defines an interior space; and a plurality of mounting regions that allow the module to be mounted with other said scaffolding modules, wherein when so mounted, the module frames are able to be interconnected to form a support structure for one or more scaffolding platforms.

Abstract: A modular platform system utilizing a number of components including a platform. The platform is configured so that each of the components may interchangeably connect to any side of the platform. The components include, for example, handrails and stairways, as well as other platforms. The platform and most of the components are formed from single, continuous pieces of metal.

Abstract: A modular safety unit for application to surfaces requiring reflectivity and friction. The unit has a front surface with a high-reflectivity portion and a roughening agent. The high reflectivity portion and roughening agent can be connate or separate. The unit also has a back surface which may be applied to a platform surface such as a rail car step, ladder rung or walkway. The back surface of the unit comprises an adhesive, or may itself be adhered to a surface.

Abstract: A support platform for enabling a worker to service an oil well next to a wellhead having a valve tree includes: a) a platform having an upper floor, a lower floor and a cellar in between the floors; b) a platform having a periphery, a central opening and radially extending beams; c) a plurality of walls attached to the periphery of the platform, said beams connecting to said walls below said upper floor; d) a drain that enables fluid to drain from the upper floor to the lower floor; e) a coupler that spans between the floors for enabling a connection to be made between the platform and valve tree; and f) a liquid guard or other provision that disallows the escape of fluid from a floor via the central opening.

Abstract: An aerial work platform assembly includes: a) a platform shaft retaining assembly; b) a mounting bracket connected to the platform shaft retaining assembly; and c) a platform connected to the mounting bracket. The platform shaft retaining assembly includes two concentric apertures for installation of a pivot shaft therein; the mounting bracket having an upper gusset member and a center gusset member that are bonded together and that include horizontal portions to which the pivot shaft is bonded; upper and lower platform pins; a valve bracket; a platform bracket; and upper platform pins that provide for pivoting on a lower platform pin and tilting down of the platform thereby. At least one of the platform shaft retaining assembly, the mounting bracket, the platform, the upper and lower platform pins, and the valve bracket are molded from at least one monomer having at least one norbornene functionality, such as polydicyclopentadiene.

Abstract: The invention is a plank fabricated from a composite fiberglass material. The invention further comprises the method of making the composite fiberglass plank using a pultrusion process.

Abstract: Rescue training equipment includes a mock up structure with at least one platform and a base structure adapted to be detachably attached to a basement on ground.

Abstract: A closet stool for use in providing access by a user to items stored in the closet and including a pair of support members each including a substantially horizontally disposed leg having inner and outer ends and a pair of brackets each for supporting an inner end of the respective substantially horizontally disposed legs from an inner wall of the closet with the legs extending in parallel and spaced from each other. The pair of support members further include a pair of substantially vertically disposed post members each having upper and lower ends. The upper end of each post member is for coupling with the outer end of a respective leg. The lower end of each post member is for resting on a floor surface of the closet. A foot support pad extends between and is supported by the legs.

Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can comprise a plurality interconnected polygonal shapes defining a top standing surface. The platform can be a grating that has load bearing properties and that can be cast from a mold. The platform includes a perimeter wall, a surface portion, and one or more reinforcement walls. A height or thickness of the surface portion is less than a height or thickness of the perimeter wall and/or the reinforcement walls.

Abstract: A modular platform system utilizing a number of components including a platform. The platform is configured so that each of the components may interchangeably connect to any side of the platform. The components include, for example, handrails and stairways, as well as other platforms. The platform and most of the components are formed from single, continuous pieces of metal.