Abstract: The present application relates to a lighting field and discloses a lamp installed through screwing, and a lamp body. The lamp installed through screwing includes a lamp body and an installing bracket. The lamp body is provided with a first fastening part thereon. The installing bracket is provided with a second fastening part thereon. The first fastening part is configured to be inserted into the second fastening part, and the lamp body is screwed, and the first fastening part rotates to fixedly fit the second fastening part. The first fastening part fits the second fastening part through screwing, thereby achieving a quick installation and disassembly.

Abstract: A manhole cover for a manhole provided with an access opening and suitable for containing a device for transmitting a radiofrequency signal is described. The cover includes a wall for covering the access opening when the cover is in a closed position, where the wall includes at least one through-opening filled with a sealing material, the sealing material extending over the surface of the wall of the cover that is oriented towards the inside of the manhole when the cover is in a closed position, the sealing material comprising a material that is transparent to the propagation of a radiofrequency signal transmitted from and/or to the transmission device.

Abstract: A cover for a utility vault and a method for making such covers. The cover is formed from fiberglass reinforcement layers and a polymer mix matrix. The reinforcement layers include a bottom reinforcement layer, one or more edge reinforcement layers, and a top reinforcement layer. A first portion of the edge reinforcement layer overlaps a portion of the bottom reinforcement layer and a second portion of the edge reinforcement layer overlaps a portion of the top reinforcement layer. The reinforcement layers are formed from fiberglass fabric and may include fiberglass layers whose fibers are oriented quadraxially. The polymer mix impregnates the fabric layers and forms the bulk of the cover. The polymer matrix bonds the reinforcement layers so that forces applied across the top and bottom layers are communicated to the edge reinforcement layer. The polymer matrix includes a thermoset polymer resin and an expanded glass bead filler.

Abstract: An apparatus and an associated method of installing a manhole assembly upon a pipe is disclosed herein. One example of the method comprises the steps of: exposing a joining section of the pipe; cutting a pipe access hole in the joining section. One prepared, a saddle may be positioned adjacent the perimeter surface of the hole such that the seal is positioned between the saddle and the joining section. The saddle in one example having a surface defining a saddle access hole there through, the saddle access hole substantially aligned with the pipe access hole during installation. The method may include the step of encapsulating these structures with a grouting material such as concrete or an equivalent. The method may include the step of providing a riser having a bottom surface resting upon the support surface of the spigot and a radially inward surface engaging the alignment surface.

Abstract: An adapter frame for use when installing or renovating a basin in relation to a surface, the basin including a basin body with basin top, basin frame and basin cover. The adapter frame includes a skirt with an inward facing flange attached to an upper part of the skirt, an inner dimension of the flange being larger than a corresponding outer dimension of the basin frame and an inner dimension of at least a lower part of the skirt being larger than a corresponding outer dimension of the basin top. The adapter frame further includes a broad outward facing flange foot attached to a lower part of the skirt.

Abstract: The present invention is a method for rehabilitating, repairing, and replacing manholes and connected sewer lines. In some embodiments, a compressed liner is inserted through the manhole access hole or the connected sewer lines. Prior to insertion, the liner may be cut and/or folded to be compressed to a size that can fit through the manhole opening or the sewer lines. Once inserted in the manhole or sewer lines, the liner should be expanded, and if necessary, bonded together with a resin along the separation line. Next, a bonding material may be injected between the liner and a surface of the manhole or sewer line to seal any cracks or fissures in the brick or concrete wall and to seal the liner against the existing manhole or sewer line to improve structural integrity and longevity. A new corbel may then be installed and bonded to the liner.

Abstract: A manhole assembly including a base, riser, and cap. The base having an upper surface forming a bench, a bottom surface, and a radially outward surface with penetrations there through; and a radial spigot in the radially outward upper edge of the base. The base having a corrosive-resistant layer covering the channels, bench, and radial spigot. Also disclosed is a riser comprised of a corrosive-resistant polymer pipe having a radially outward surface, an inner surface and a bottom surface in contact with, supported by, and sealed to the radial spigot. The cap having a radial spigot, and access hole; the radial spigot in the radially outward bottom edge of the cap resting upon and sealed to an upper edge of the riser. The radially outward surface of the cap and base are aligned with the radially outward surface of the riser.

Abstract: A truncated icosahedron assembly can include a plurality of structural elements coupled together in a truncated icosahedral configuration. Each structural element can include first and second hexagonal portions and first and second pentagonal portions. The hexagonal portions of each structural element can be coupled together at a first edge of the first hexagonal portion and a second edge of the second hexagonal portion. The pentagonal portions of each structural element can be spaced relative to each other by the first and second hexagonal portions. The first pentagonal portion of each structural element can be coupled to the hexagonal portions adjacent the first edge of the first hexagonal portion and the second edge of the second hexagonal portion. The second pentagonal portion of each structural element can be coupled to the hexagonal portions adjacent the first edge of the first hexagonal portion and the second edge of the second hexagonal portion.

Abstract: A manhole base assembly and a method for making the same, in which a non-cylindrical, low-volume concrete base is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures using existing, standard sets of form assembly materials, and may also be used in conjunction with industry-standard cylindrical casting jackets for compatibility with existing casting operations. The resulting system provides for flexible construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity.

Abstract: A recessed downlight fixture and method for installation is provided. The recessed downlight fixture can be installed in a retrofit application, after a ceiling is installed, through a pre-existing opening in that ceiling. Alternatively, a recessed downlight fixture according to a second embodiment can be installed before a ceiling is present. In either embodiment, the light source coupled to, for example, a heat sink, can be universally moved in three degrees of movement, rotationally, along a tilt axis, or further within the ceiling to increase or decrease the recess. All such universal adjustments can take place through and below the ceiling opening during or after installation.

Abstract: A portable and relocateable pump attachment interface provides a fixed link between a first line in communication with a fluid reservoir, and a second line in communication with a mobile storage tank via a pump of a pump truck. The interface includes an interface body that supports a fixed conduit entirely above ground. The front end of the conduit is for coupling to the first line, and the back end of the conduit is for coupling to the second line. The interface body has a fitting access space and a spill containment catch basin disposed under the fitting access space, and the second end of the conduit is located within the fitting access space and over the spill containment basin to catch any spillage from the second line when it is coupled to and uncoupled from the conduit. The interface body can be a concrete block, or be molded plastic filled with sand or water and is massive enough to substantially isolate line one from line 2.

Abstract: Resin-based structures for use in corrosive environments. The resin-based structures may include a mixture of resin and aggregate. The resin-based structures may be formed in a mold by placing aggregate and resin into the mold. The resin-based structures may have thin wall design with high compression and tension strength.

Abstract: A cover for closing an access opening that leads to an infrequently used space within a building, such as an attic, that generally provides an air seal, thermal insulation and/or acoustic insulation at the access opening. The cover may be in one or two portions, including a closure alone or a closure and a frame having an aperture that can be closed by engagement between the closure and the frame. When the cover is used alone it engages a frame or a wall circumscribing the access opening. The cover is sized and shaped to close a stairwell, or the opening at one end of a stairway, an opening in a generally vertical wall, a hatch, or a pull down ladder. The closure and frame are each made of one or more components.

Abstract: A cover is provided in modular form for covering support structures, including columns supporting overpasses on roadways. The cover is formed of cover segments that are connected together laterally and vertically. The cover segments are provided with multiple techniques for vertical and horizontal connection, air channels, stand offs, worker viewing areas, and drainage spaces. The cover is made of a lightweight material and allows for tolerance for expansion of the support structure material.

Abstract: An access door assembly for joining to a structure. The access door assembly has an access door with at least one access door nonlinear edge, a support structure with at least one support structure nonlinear edge, and a doubler element attached to an interior side of the support structure. The support structure nonlinear edge is designed to interlace with the access door nonlinear edge to form an access door assembly for joining to a structure, the access door assembly having an interlaced nonlinear edge interface. A diameter of the doubler element of the access door assembly is preferably reduced as compared to a diameter of a doubler element of an access door assembly having a linear or circular edge, such that the reduced diameter preferably results in an overall reduced weight of the access door assembly and the structure to which the access door assembly is joined.

Abstract: The portable steel-reinforced HDPE pump station includes a vertically upright, cylindrical wet well fabricated from steel-reinforced plastic. Pumps are disposed in the wet well. A pipe connected to the pumps extends to the outside of the wet well to allow outflow of water to external systems. An access hatch covers the upper portion of the wet well and is arranged above grade. The remainder of the wet well is disposed in the ground, below grade. Vertically disposed sliding rails are attached inside the wet well, and extend upward from a working area of the well to the top of the well near the access hatch. The pumps are slidably attached to the rails to facilitate sliding installation and removal of the pumps by way of the access hatch. A water-receiving inlet pipe extends into the wet well, the inlet pipe allowing entry of water inside the wet well.

Abstract: A cover device kit includes: a plurality of heat insulation components comprising a lightweight construction material such as synthetic resin foam capable of being transported in a disassembled state and then quickly assembled into a box-shaped heat barrier structure having six sides including an opening on an open side for covering an opening in a floor or wall of a building. Four of the plurality of heat insulation components 14, 16, 18, 20 each includes two complimentary connections for uniting with two corresponding adjacent heat insulation components of the plurality of heat insulation components when assembled into four side walls of the box-shaped heat barrier structure 10. The cover 12 serves as a fifth heat insulation component and unites with the four components 14, 16, 18, 20 that constitute side walls of the box-shaped structure and is situated opposite the opening on the open side.

Abstract: A hinge member providing a pivotal connection between a utility vault hatch and a utility vault frame that provides an adjustable torsion lift system with one-way bias. Hinge member comprises a fixed end socket, a floating end socket, a torsion bar member, and a collar member. Fixed end socket and floating end socket are rigid cylindrical members with a cylindrical exterior surface and a polygonal socket at in its interior. Torsion bar member is an oblong rod or bar with an external polygonal shape that fits the polygonal sockets on the fixed end socket and the floating end socket. Collar member is a rigid cylindrical member with a cylindrical exterior surface and a hollow cylindrical center. Collar member has a T-slot void cut into its cylindrical exterior surface. Floating end socket further comprises an ear member, which is inserted into the T-slot of collar member.

Abstract: A hinge member providing a pivotal connection between a utility vault hatch and a utility vault frame that provides an adjustable torsion lift system with one-way bias. Hinge member comprises a fixed end socket, a floating end socket, a torsion bar member, and a collar member. Fixed end socket and floating end socket are rigid cylindrical members with a cylindrical exterior surface and a polygonal socket at in its interior. Torsion bar member is an oblong rod or bar with an external polygonal shape that fits the polygonal sockets on the fixed end socket and the floating end socket. Collar member is a rigid cylindrical member with a cylindrical exterior surface and a hollow cylindrical center. Collar member has a T-slot void cut into its cylindrical exterior surface. Floating end socket further comprises an ear member, which is inserted into the T-slot of collar member.

Abstract: A closure is adapted to limit damage from a gas explosion in an underground space. The closure includes a telescoping sleeve having a plurality of vents extending radially through the sleeve. The sleeve defines a manhole extending axially through the sleeve so a person can enter the underground space through the manhole. A manhole cover is moveable to a closed position in which the cover is supported on an upper end of the sleeve and covers the manhole. The sleeve can be received in an opening of a frame of a manhole installation so the sleeve is moveable by gas pressure to an extended position in which gas from the underground space can be vented through the sleeve to an aboveground space. If desired, the sleeve can be installed in an existing manhole installation to upgrade the installation to have an explosion mitigation capability without replacing the conventional manhole cover.

Abstract: Disclosed is a latching mechanism for a access door. More specifically, the disclosure relates to an access door that can be pivoted between opened and closed orientations and secured in the open position with the aid of a hold open arm. A latching lever, in turn, pivotally engages the hold open arm to selectively secure the access door in an opened orientation. A grip upon the hold open arm can thereafter be used in conjunction with the latching lever to release the access door and permit it to be closed.

Abstract: Tower sections for towers of wind turbines and methods for installing towers of wind turbines are disclosed. A tower includes a preassembled power module having a first cross-sectional area. The tower section includes a wall having an inner surface and an outer surface. The inner surface defines a tower interior and has a first diameter. The tower section further includes a tower flange extending from the wall into the tower interior and having a second diameter less than the first diameter. Further, the tower section includes a platform assembly affixed to the wall and having a third diameter greater than the second diameter. The platform assembly defines an aperture having a second cross-sectional area greater than the first cross-sectional area.

Abstract: A fall safety barrier for use around a hole has anchor means removably secured adjacent a perimeter of the hole, first collapsible barrier means pivotally mounted about a first pivot location of the anchor means, and second collapsible barrier means pivotally mounted about a second pivot location of the anchor means opposite the first location. There are means for allowing the first collapsible barrier means to pivot between a first contracted position, where it lays upon the second collapsible barrier means, and a first expanded position, where it is upright and forms a first side of the fall safety barrier. There are also means for allowing the second collapsible barrier means to pivot between a second contracted position, where it lays adjacent the anchor means, and a second expanded position, where it is upright and forms a second side of the fall safety barrier opposite the first side.

Abstract: The present invention provides an apparatus and method for repairing a manhole. The wall of the manhole is lined with a liner to form a new wall. The liner includes a resin that cures to form the new wall that is similar to the repaired wall. Embedded in the liner is a wireless data transfer mechanism that includes a transmitter, such as a radio-frequency identification (RFID). The RFID transmits identification information about the liner or the repaired wall. The transmitter may be capable of data entry in the field or may be otherwise field-programmable and further capable of transmitting at least one physical characteristic. Examples of physical characteristics may include temperature, pressure, chemical reactions, flow within the manhole, and the like. Additional transmitters may be used along the length of the manhole to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors.

Abstract: A grade level enclosure conversion assembly adapted for converting a pedestal housing between a flush-to-grade and an above-ground pedestal installation. The base of the pedestal housing carries a plug removably mounted to a swing-arm in the grade level enclosure. The swing-arm holds the pedestal assembly in a stored position in the flush-to-grade installation, containing wiring for service connections. To convert to the above-ground installation, a solid grade level cover plate lid is removed, and the pedestal assembly is rotated on the swing arm to a raised position from which it can be removed from the swing-arm (along with the wiring) and fed through an access opening in a separate cover plate lid. The plug on the pedestal housing is then positioned in the access opening to hold the pedestal assembly in the above-ground position.

Abstract: An in-ground storm shelter for installation in the floor of a structure. The door is substantially flush with the floor and comprises two panels, one sliding over the other, so as to occupy as little floor space as possible. A spring-biased latch on the leading edge of the sliding door automatically latches the closed door to a rail on the front edge of the enclosure as the door is slid shut. The latch may comprise a pair of handles, each with a grip hole. The latch is releasable from outside the shelter using the end of a handrail that acts on the latch through a latch release window in the sliding door. The shelter may also include a safety chain that extends through the grip holes in the latch handles. A security lock may be included so that the shelter may serve as a safe or secure storage.

Abstract: A manhole cover includes a cover panel formed from a first material, which may be a generally lightweight material, and an insert formed within a cutout in the first material. The insert may be formed from a higher strength material and may include one or more openings for receiving conventional cover removal tools. In one embodiment, the manhole cover includes a cover panel having a peripheral edge and defining a diameter, and further defining an opening or cutout that is spaced from the peripheral edge. The insert is disposed in the opening. The insert may include an upper surface and a lower surface opposite the upper surface, the insert defining first and second openings in the upper surface, with the first opening shaped to receive a first removal tool and the second opening shaped to receive a second removal tool.

Abstract: A unique safety rail system with integrated hand-grip projections, structures for affixing the system for the safe and easy egress and ingress through an opening, such as roof or floor access holes. The safety rail system is designed to reduce the risk of falls while ascending or descending a ladder through an access hole while providing additional protection and prevention of personnel accidentally falling through an open access. A self-closing gravity gate may be provided acting as additional hand-grip, support, and barrier. This system may employ methods of construction and assembly using a unique continuous tubular structure of converging vertical and angular upright post with horizontal upper safety rail, forward protruding hand-grip and opposing directionally horizontal lower attachment support means reducing lateral motion and allows efficient installation for new construction or retro fitting of existing openings.

Abstract: Apparatus and method for providing a guard rail adjacent an access aperture extending through a floor surface, such as in an attic space of a residential structure. A guard rail assembly includes a top rail portion which extends adjacent at least one side of the access aperture to provide a guard rail. An angled portion extends at a non-orthogonal angle to provide a hand grip surface for a user passing through the access aperture. A front leg segment supports an end of the angled portion opposite the top rail portion. Preferably, a rear leg segment supports the top rail portion to form a first side rail assembly. A second, nominally identical side rail assembly adjoins the first side rail assembly to form a substantially u-shaped top rail surface that surrounds the access aperture on three sides. The guard rail assembly is further preferably adjustable to accommodate different access aperture dimensions.

Abstract: A locking core plug includes an upper plate, an insertion portion extending outward from the upper plate and forming an outer perimeter, and a locking mechanism positioned within the outer perimeter of the insertion portion. The locking mechanism includes a rotating member, a plurality of locking arms having a first end connected to the rotating member and a second end extending outward toward holes in the outer perimeter, and a plurality of guides fixedly mounted to the upper plate. Each guide engages a corresponding locking arm to convert the circular movement of the first end of the arm as rotating member rotates into a generally linear movement of the second end between a release position retracted toward or within the outer perimeter of the insertion portion and a locking position extended outward from the outer perimeter of the insertion portion.

Abstract: A confined space control cover that covers a man-way to a confined space area that includes a polyester base cover and an attachment perimeter orifice that covers the man-way, a heavy nylon strapping with two ends that is utilized to secure the confined space control cover over the man-way and a plurality of steel eyelets that are disposed on both ends of the strapping. A lock is placed through the eyelets on both ends to secure the control cover to the man-way. The control cover also includes a warning sign disposed on the front of the base cover to prevent persons from entering the confined space area and a maintenance tag that is attached to the strapping to indicate maintenance activity performed near or within the confined space area or man-way.

Abstract: An underground shelter having a flat lid divided into two portions substantially flush with the surrounding ground level and each other when closed having—a first stationary lid portion, and a second moving lid portion, at least one reinforcing member supporting each lid portion; a roller means comprising—at least one linear track, at least one upper track roller, each upper track roller rollingly supporting the second lid portion; at least one ramp defined in the first lid portion, and out of line with the track, adapted to elevate a leading edge roller to a higher level allowing the second lid portion to pass over the first; at least one leading edge roller engaging a ramp; a releasable latch means; a lid retainer means for resisting a lifting force; access means for ingress/egress; and at least one ventilation means for equalizing the pressure.

Abstract: A window well cover jack is disclosed. The window well cover jack has three arms: a base arm, a support arm and an actuator handle, all connected to aid in the lifting of a window well cover and to allow egress. In one embodiment, the jack is lockable in a stowed position. It is also possible to add a spring assist to aid in the lifting of a window well cover. Ideally, the window well cover jack is also lockable in a deployed position to aid in holding an ajar window well cover so as to facilitate escape. A simple link, which is easily broken by emergency crews with the proper tools but secure against intruders without said tools, connects the window well cover jack to a window well cover.

Abstract: An automatic retractable hatch guard provides enhanced safety and security to hatch openings and comprises retractable assistive handrails and a retractable access step that retracts to fit within a hatch opening and beneath a hatch cover and automatically extends upwards and beyond the hatch opening.

Abstract: An insulated scuttle cover configured for placement within a building scuttle opening is provided. The insulated scuttle cover includes a scuttle panel configured to cover the building scuttle opening. The scuttle panel is further configured to be supported when positioned within the building scuttle opening. An insulated pouch assembly is positioned adjacent to the scuttle panel. The insulated pouch assembly includes insulation material sealed within a flexible pouch. The insulated pouch assembly is positioned on an attic side of the scuttle panel. The insulated scuttle cover is configured to prevent or substantially retard the flow of air passing through the building scuttle opening.

Abstract: In areas with propensity for tornados, for example in the central part of the country, the plain states, the mid-west, and also in Florida, it is customary to have some form of storm shelter in which the occupants of commercial and residential buildings can seek refuge in the event of a tornado. The safest type of storm shelter is a so-called in-ground storm shelter. The embodiments of the In-Ground Storm Shelter are comprised of a bottom, a left side and a right side. The In-Ground Storm Shelter is further comprised of a front side and a back side, and a top side. The top side is further comprised of a removable back door, a sliding door, a top left shoulder and a top right shoulder.

Abstract: A method of handling the removal and installation of a manway cover to a manway flange includes removing a plurality of manway cover bolts, assembling a portable manway cover hinge device having a pair of hinge plates having a hinge aperture alignable with an existing bolt opening or a user formed bolt opening, forming one or more bolt openings in a peripheral portion of one of the manway cover and the manway flange, aligning a hinge aperture of the support member of each of the pair of hinge plates with the one or more bolt openings formed in the peripheral portion of the one of the manway cover and the manway flange or the plurality of existing bolt openings, inserting a pin into each hinge aperture of the hinge plates, and removing the remaining manway cover bolts from the manway cover.

Abstract: The window well cover and accessory for use there with includes a cover that is hingedly attached top of a window well. The window well cover includes height-adjusting means to tilt the window well to a particular orientation with respect to the window well. The window well cover includes an accessory that is secured to a top surface of the window well cover, and which provides a decorative feature to an adjacent home as well as a weighting means for maintaining the window well cover atop of the window well. The window well cover is constructed of a transparent material to enable light to penetrate down into the window well. The window well cover is capable of rotating outwardly and away from the respective home in order to provide ingress and egress with respect to the window well.

Abstract: A cover for a structure may include a plate including upper and lower surfaces. A rim portion of the lower surface may be configured to contact an edge of the structure. The cover may include a spider including a center portion, a plurality of legs extending radially outward from the center portion, and a plurality of coupling elements. Each leg may be coupled to the lower surface of the plate with a corresponding coupling element. The center portion of the spider may be movable away from the lower surface of the plate to move the spider from a locked position in which a distal end of each leg extends outward to a first radial position to engage the structure to an open position in which the distal end of each leg is withdrawn to a second radial position radially inward of the first radial position to disengage the structure.

Abstract: A modular underground utilities vault enclosure and distribution system providing an integrated utilities interconnection system within a single modular enclosure and a single unified set of utility service connections leading from the vault to the premises of one or several utilities customers. The vault design comprises a set of modules suitable for assembly at the user site within a suitable excavation. The unified design permits installation of all utilities service lines within a single one-time trench connecting the vault to each of one or several premises through a common service-entry module. The vault assembly enables utilities access within the vault for connecting main utilities lines to individual premises utilities line sets. Each utility can service its own lines within the vault connecting to each premises served. The individual vault modules include assembly and alignment and interface aids to resist lateral displacement forces and seal the vault against groundwater leakage.

Abstract: An apparatus and method is described for providing a water impenetrable barrier between a cone and support frame of a manhole system. The apparatus includes a barrier, cap, and seal that restricts the inflow and infiltration of water or other debris into the interior of the manhole system. The cap and seal barrier may be implemented in a sanitary sewer, catch basin or other manhole system.

Abstract: A cover for a structure may include a plate including upper and lower surfaces. A rim portion of the lower surface may be configured to contact an edge of the structure. The cover may include a spider including a center portion, a plurality of legs extending radially outward from the center portion, and a plurality of coupling elements. Each leg may be coupled to the lower surface of the plate with a corresponding coupling element. The center portion of the spider may be movable away from the lower surface of the plate to move the spider from a locked position in which a distal end of each leg extends outward to a first radial position to engage the structure to an open position in which the distal end of each leg is withdrawn to a second radial position radially inward of the first radial position to disengage the structure.

Abstract: The present invention is a foundational cistern. The present invention is an evolutionary panelized foundation system that uses known pre-casting technologies, functions structurally in similar ways to traditional systems, yet provides building designers with a multitude of new benefits in combination with the objectives of reduced construction time, energy, and water conservation. Stored rainwater in the cistern provides thermal mass for heating for a supported structure, and may be used for nonpotable uses. Given appropriate on-site water treatment, potable uses of stored rainwater may be contemplated as well. The foundational cistern of the present invention may be coupled to other foundational cisterns and structural elements of the supported structure. The present invention offers a multitude of advantages not currently known in the art of foundation products.

Abstract: A safety hatch and safety railing assembly in unitary form which incorporates the fabrication of a roof or deck scuttle with safety guard rails as required by the Occupation Safety Hazards Act (OSHA) around the roof or deck opening of a building. The safety hatch or safety hatch and safety railing assembly of the present invention preferably employs safety railing mounting bracket components that are welded to hatch flashing or to bracket hanger members and are designed to receive and provide for safe and efficient mounting of vertical posts and rails of a safety railing assembly around a roof or deck access opening. The safety hatch and safety railing assembly provides an improved base flashing that additionally functions to hold the roofing membrane to the scuttle curb.

Abstract: A window well cover that is universal to the extent that it will work on different sizes and shapes of window wells within a certain range for each size of window well cover produced.

Abstract: A grating system such as that used in roadways or sidewalks is provided. The grating system includes a support ledge having a first surface. A surface frame is arranged adjacent the first surface, the surface frame having a plurality of second surfaces defining an opening. A grating frame is coupled to the plurality of second surfaces. At least one cover is removably coupled to the grating frame.

Abstract: A riser formed from a plurality of curved cylindrical segments with vertical side edges having mating vertically tapered projections and slots brought into interlocking engagement to pull confronting surfaces together as the tapered elements become increasingly mechanically engaged. The segments are assembled by a sliding engagement of the protruding mating element of one segment into the vertically tapered slot of an adjacent segment. When sufficient segments are joined together horizontally to complete a ring except for a last adjacent pair of vertical side edges, the ring is warped to align the protruding mating element of the last adjacent pair of vertical side edges with an opposite end of the adjacent tapered slot. Thus aligned, the final protruding mating element and tapered slot are then slipped together while un-warping the joined segments forming the remainder of the ring until the top and bottom ends of all the segments are aligned.

Abstract: A manhole cover assembly includes a frame defining an access opening, first and second mounting posts extending from the frame, and a cover for covering the access opening. The cover includes first and second mounting recesses that pivotally receive the first and second mounting posts respectively, such that said cover is movable between an open position and a closed position by rotating the recesses about the posts. At least one of the recesses includes a locking groove that aligns with the post when the cover is moved to an open position to lock the cover in the open position.

Abstract: In areas with propensity for tornados, for example in the central part of the country, the plain states, the mid-west, and also in Florida, it is customary to have some form of storm shelter in which the occupants of commercial and residential buildings can seek refuge in the event of a tornado. The safest type of storm shelter is a so-called in-ground storm shelter. The embodiments of the In-Ground Storm Shelter are comprised of a bottom, a left side and a right side. The In-Ground Storm Shelter is further comprised of a front side and a back side, and a top side. The top side is further comprised of a removable back door, a sliding door, a top left shoulder and a top right shoulder.

Abstract: A height-adjustable shower waste for a bathroom floor having a non-flexible waterproof floor covering material, the shower waste comprising a waste body (12) for mounting in the bathroom floor and having a base (20), one or more sides extending from the base (20), a waste water inlet (26), and a waste water outlet (30) connected or connectable to a drain; a cover support element (16) on which a cover element (18) is or can be provided to cover the waste water inlet (26); distance setting means (54, 66) for selectively setting a distance between an in use upper edge of the cover support element (16) and the waste body (12); and retaining means (90, 104) for positively retaining the cover support element (16) at the said set distance. A method and an adapter device are also provided.