Abstract: A fleet of machines at a worksite can transport loads of material, such as ore, to a processing plant configured to process the material. A fleet management controller can control operations of the fleet of machines, while a plant management controller can control operations of the processing plant. The fleet management controller and the plant management controller can exchange data associated with the operations of the fleet of machines and the operations of the processing plant. The fleet management controller can use the data provided by the plant management controller to dynamically control operations of the fleet of machines based on the operations of the processing plant. The plant management controller can use the data provided by the fleet management controller to dynamically control operations of the processing plant based the operations of the fleet of machines and attributes of loads of material transported by the fleet of machines.

Abstract: Problems: Provided is a drive control device for a fluid pressure cylinder that has good operability for expanding and contracting the fluid pressure cylinder in the vicinity of a stroke end.

Abstract: An aspect of the present disclosure provides a method for calculating the mass of material in an excavating machine bucket including receiving, by a controller, data for determining the distance between at least one sensor mounted on the excavating machine and a target positioned on an arm of the excavating machine. Moreover, the method includes receiving torque data for a rotating hoist drive shaft in the excavating machine. The torque data is generated by a torque sensor positioned about the shaft. Furthermore, the method includes calculating frontend geometry of the excavating machine. The excavating machine includes at least one rope. Additionally, the method includes calculating a rope force in the at least one rope using the torque data and calculating the mass of material in the excavating machine bucket using the calculated frontend geometry and the rope force.

Abstract: A work machine includes: a main circuit that supplies a working fluid from a pump to an actuator; a pilot circuit that introduces part of the working fluid from the pump, to a pilot pressure receiving section of a control valve; a bleed-off passage that connects the pump and a tank. The pilot circuit is provided with: a first pressure reducing valve that generates a pilot primary pressure; and second and third pressure reducing valves that generate a pilot secondary pressure to be applied to the control valve and a bleed-off valve. A moving area of a spool of the bleed-off valve has a first moving area where an opening area of a restrictor changes stepwise, and a second moving area where the opening area of the restrictor changes continuously. A controller controls the third pressure reducing valve such that the spool is positioned in the first moving area at the time of non-operation of the actuator, and the spool is positioned in the second moving area at the time of operation of the actuator.

Abstract: A working machine includes a driver including a hydraulic actuator to be actuated by a hydraulic fluid, and a controller configured or programmed to change a drive speed of the driver in a drive start period. The controller is configured or programmed to, if a limit value based on which operation of the driver is limited is equal to or more than a threshold, perform a first control in which the controller changes the drive speed of the driver in the drive start period based on the limit value, and if the limit value is less than the threshold, perform a second control in addition to the first control, the second control being a control in which the controller changes a maximum flow rate of the hydraulic fluid to actuate the hydraulic actuator based on the limit value.

Abstract: This display control system includes a display processing unit that causes a display device to display a display screen. The display screen includes a remaining-amount display region and a switching display region. The remaining-amount display region is a region for displaying remaining-amount information, which concerns the remaining amount of an object to be monitored that is consumed with the operation of a work machine. The switching display region is a region for displaying information to be displayed which is switchably selected from among a plurality of pieces of information including at least first piece of information and second piece of information which are related to the work machine. The switching display region is arranged in a central area including the center of a display screen. The remaining-amount display region is arranged in a peripheral area located at the periphery of the central area of the display screen.

Abstract: A loading machine has work equipment including a work tool and a movable support part configured to change a posture of the work tool. A control system for the loading machine includes a controller configured to determine presence or absence of a load, and a target work equipment posture indicating a target posture of the work tool based on a determination result of the presence or absence of the load.

Abstract: An agricultural system for detecting failure of a ground-engaging tool of an agricultural implement includes a ground-engaging tool supported on an agricultural implement, with the ground-engaging tool being configured to engage a field during an agricultural operation of the agricultural implement within the field. The system further includes a field profile sensor configured to generate data indicative of a profile of an aft portion of the field located rearward of the ground-engaging tool relative to a direction of travel of the agricultural implement. Additionally, the system includes a computing system configured to monitor the profile of the aft portion of the field during the agricultural operation based at least in part on the data generated by the field profile sensor and determine that the ground-engaging tool failed based at least in part on the profile of the field.

Abstract: A water reclamation assembly includes a bathtub that has a drain for draining water from the bathtub. A toilet is included and the toilet is in fluid communication with a sewer system. A water reclamation unit is fluidly coupled between the drain of the bathtub and the sewer system. The water reclamation unit includes a reservoir which has a pre-determined fluid capacity for storing a pre-determined volume of water. The reservoir is in fluid communication with the fluid tank of the toilet such that the fluid tank of the toilet can be filled with water stored in the reservoir. The water reclamation unit is in fluid communication with the sewer system. Furthermore, the water reclamation unit is actuated into a draining condition when the reservoir is filled to the pre-determined capacity to drain the water into the sewer system.

Abstract: A water consumer system comprising a water consumer that comprises a water receptacle, the water consumer system further comprising a fluid inlet with an inlet valve, a fluid outlet, at least one HF motion sensor for detecting fluid motion provided on the water receptacle and/or at the fluid outlet and a water consumer controller coupled with the HF motion sensor and the inlet valve, wherein the water consumer controller comprises a data processing system, which is arranged to Retrieve or receive data captured by the HF motion sensor, to evaluate the data arithmetically and, based on the evaluated data, to detect one of the following malfunctions or initiate an action, in order to prevent one out of the variety of the following malfunctions, such as that the outlet is obstructed, there is a pressure fluctuation in a wastewater system, the fluid inlet is malfunctioning, etc.

Abstract: A cold water cabinet (41) comprising a valve housing (22) intended for an ingoing pressure above 5 bars. The valve housing (22) is moulded in one unit and comprising therein a shut-off valve (2), a check valve (8), a control plug (12), a filter (13), and a combined pressure reduction valve (63) and water stop valve (30). The combined pressure reduction valve (63) and water stop valve (30) having a first spindle (26) with a plunger (28) at a first end. An opening between said plunger (28) and an associated seat (27) being controlled by a second spindle (29) and an adjustable spring (62) arranged at an opposite second end of said first spindle (26). The second spindle (29) being coupled to a motor (31), which is moving the plunger (28) against the seat (27) to close the water stop valve (30) when the motor receives a signal from at least one water leak sensor.

Abstract: A faucet assembly and a bushing thereof are described. The faucet assembly comprises a case, a drain tube and a bushing. The drain tube is assembled in the case. The drain tube has a first opening and a second opening extending coaxially from the first opening. The bushing set is at the first opening of the drain tube. The bushing is assembled to a water pipe extending from a wall. The case has an exit at a front end thereof. The second opening of the drain tube is connected to the exit. The bushing comprises a main body. The main body has a through opening formed therethrough to be assembled to a water pipe. The main body further comprises a water-inlet portion, a water-outlet portion, and a protruding portion between the water-inlet portion and the water-outlet portion. The protruding portion is thicker than both of the water-inlet portion and the water-outlet portion of the main body. The water-outlet portion has an outer surface and an inner surface.

Abstract: A sprayhead hose retraction system including one or more pully assemblies having one or more pullies. Each of the one or more pullies have defined grooves configured to receive a hose, at least in part, wherein a first end of the hose is connected to a sprayhead of a faucet and wherein the hose wraps around the one or more pullies such that extension of the sprayhead moves or rotates the one or more pullies as the sprayhead extends from the faucet. When the sprayhead is released by a user, the one or more pullies provide a force onto the hose which automatically causes retraction of the sprayhead into the faucet.

Abstract: A sanitary faucet (1), at least comprising: a faucet body (2) having at least one outlet opening (3); a proximity sensor (4) for determining a distance from an object (5); and a control unit(14) by means of which at least one program of the sanitary faucet (1) can be selected or controlled depending on the distance of the object (5). In addition, a method for controlling the sanitary faucet (1).

Abstract: A sprayer attachment with a faucet sleeve for securing to a tub faucet. The sprayer attachment includes a hose having a spray head at a first end and a faucet attachment disposed at an opposing second end, wherein the faucet attachment can be inserted within or around a faucet opening to allow water to pass through the hose to the spray head. The faucet sleeve extends from the second end of the hose, wherein the sleeve is movable between a non-use configuration and an in-use configuration. In the non-use configuration, the sleeve is rolled towards the first end, exposing the faucet attachment. In the in-use configuration, the faucet attachment is inserted within or around the faucet opening and the sleeve is unrolled, concealing the faucet attachment. The sleeve is flexible and elastic to secure around a length of the faucet.

Abstract: According to the invention, there is provided a drainage device (10) including a body (14) defining a passage (16) having opposing end regions (18) which extend between and interconnect overflow and drainage apertures (20) and (22) defined in the receptacle (12) to permit fluid flow therebetween, typically from the overflow aperture (20) via the drainage aperture or plug hole (22) to a drain (not shown).

Abstract: A urinal screen having a frame and a plurality of protrusions extending from the frame. The frame can include a plurality of openings. The openings can be defined by a plurality of perimeter structures. The protrusions can extend from the perimeter structures. In some embodiments, protrusions extend from a first face and a second face of the frame.

Abstract: An apparatus includes a sewerage drop bowl and a lid hingedly coupled to the drop bowl. The drop bowl and the lid are configured to be cooperable to house a first portion of a sewerage pipe, are configured to be cooperable to receive a sewage flow from the sewerage pipe in a first direction, and are configured to be cooperable to redirect the sewage flow to a second direction.

Abstract: A modularized framework structure of a three-dimensional truss structure is obtained as a result of making unit modules and interconnecting the unit modules. Each of the unit modules is made of frames, having elongated joining surfaces and connected mutually at end portions, to conform to a regular tetrahedron or octahedron. The elongated joining surfaces are obtained as a result of planarly truncating surfaces of edges of the frames corresponding to ridgelines of the regular tetrahedron or octahedron such that the elongated joining surfaces can be joined mutually, and the elongated joining surfaces are oriented orthogonally to perpendiculars drawn from the center to the corner centers of the elongated joining surfaces to form a Tetra- or Octa-module. The unit modules as the Tetra- or Octa-module are interconnected by joining mutually the elongated joining surfaces of the frames thereby to form the three-dimensional truss structure.

Abstract: A modular building system and method of construction that includes the steps of: assembling a structure to create a framework as part of a series of modular assemblies; arranging at least one dome, where the at least one dome includes the modular assemblies, and wherein the framework supports the at least one dome; creating four quadrants within each dome which creates a domed hemisphere, wherein each quadrant shape consists of at least three equal edges in a 90-degree arc; designing a first chord factor, second chord factor and a third chord factor associated respectively with a first chord length, a second chord length and a third chord length for each quadrant, where the chords are edge lengths that determine a radius of each dome and said edge length equals a chord factor multiplied by a desired dome radius; and attaching modular connectors along edges of the modules and the modular connectors enable the connection of the modular assemblies, further where each of modular connector includes square openings

Abstract: A laminated lumber constructed volumetric modular unit constructed at a modular unit factory and shipped assembled to a modular building project site is disclosed. The laminated lumber constructed volumetric modular unit includes a floor structure and ceiling structure interconnected by opposing side wall structures and opposing end wall structures, a plurality of floor trusses disposed within the floor structure, a plurality of ceiling trusses disposed within the ceiling structure, a plurality of wall studs disposed within the opposing side wall structures and opposing end wall structures, one or more rim joists attached to the ceiling structure, and one or more multiple laminated lumbers attached to the floor structure and extending between the opposing end wall structures for carrying the load of the modular unit.

Abstract: In an embodiment, a multifunctional material system is provided and can include a variable-permeability layer, a desiccant containing layer, and a vapor-permeable supporting layer. The variable-permeability layer can have a vapor permeability that increases with increasing relative humidity. The desiccant containing layer can be adjacent the variable-permeability layer. The vapor-permeable supporting layer can be positioned adjacent at least one of the variable-permeability layer and the desiccant containing layer. Water moves in a first direction from the variable-permeability layer to the desiccant layer when relative humidity is greater adjacent the variable-permeability layer than the desiccant layer. Water moves a second, opposing direction, from the desiccant containing layer to the variable-permeability layer when the relative humidity is greater adjacent the desiccant containing layer than the variable-permeability layer.

Abstract: A waterproofing membrane system for waterproofing a concrete substrate includes a first layer comprising a thermoplastic elastomeric waterproof material using advanced polymerization and squeeze technology. The second layer comprises a carrier sheet that comprises a fabric. The third layer comprises an adhesive to provide bonding of the first layer with a concrete substrate upon contact. In addition, the third layer may reduce migration of water and vapor traveling between the first layer and the concrete substrate. In some examples, the waterproofing membrane system also includes a fourth layer to provide mechanical protection and ease of handling for the first layer, the second layer, and the third layer. In some examples, the first layer comprises a thermoplastic polyolefin (TPO), the fabric comprises polypropylene or polyethylene, the adhesive comprises a C5 petroleum resin, and the fourth layer is a protective coating comprising quartz sand (SiO2) having a reflectivity of 4.5%.

Abstract: A building structure automates control of insulation units. The insulation units deploy insulation components to cover portions of the building structure. For example, a first insulation unit deploys insulation on a first wall of the building structure, and a second insulation unit deploys insulation on a second wall of the building structure. A computing device processes data from sensors of the building structure to control the insulation units. For example, the insulation is deployed based on temperature readings or humidity readings inside or outside the building structure. The building structure can include other energy efficient components such as water tanks, geothermal ventilation, and a solar panel system.

Abstract: A thermal insulation board (100) for use in thermal insulation of a structure, comprising a first face (100A) and a second face (100B) opposite to the first face (100A), the insulation board having a thickness of thermal insulation material between the first face and the second face defining the thermal insulation direction of the board (100). The thermal insulation board (100) comprises one or more gas channels (102, 104, 106) formed to the insulation material and extending between the first face (100A) and the second face (100B), and that the one or more gas channels are arranged at least partly to an angled orientation such that the first end (102A) of the channel (102) residing closer to the first face (100A) is vertically lower, in a usage position of the thermal insulation board (100), than the second end (102B) of the gas channel (102).

Abstract: The present disclosure relates generally to acoustic panels, for example, suitable for use in a ceiling to control sound. The present disclosure relates more particularly to an acoustic ceiling panel including an acoustic substrate formed of a porous material having an air flow resistivity of at least 300 kPa*s/m2. The acoustic substrate includes an upper face and a lower face with a pattern of perforations formed therein, where the pattern of perforations covers at least 6% of the area of the lower face. The acoustic ceiling panel also includes a backing layer disposed over the upper face of the acoustic substrate and a veil disposed over the lower face.

Abstract: A structural masonry element includes an element body having a perimeter wall defined by height, and having parallel top and bottom surfaces, each of the top and bottom surfaces having an external lunate shape. The external lunate shape is defined by a material section resulting from a symmetrical lens cut away from a first circle. The symmetrical lens is a result of an intersection of the first circle with a second circle. Radii of the first and second circles are equivalent. A distance between centers of the first circle and second circle is greater than each of the first and second radii. The external lunate shape is configured to nest an analogous interfacing masonry element within the symmetrical lens and thereby provide a spherical first interlocking masonry joint. A mortarless masonry structure including a plurality of such masonry elements is also considered.

Abstract: An exterior wall panel assembly may include a metal stud wall panel frame including a bottom track, a top plate, vertically extending studs between the bottom track and the top plate, and a window opening. An assembly may include an exterior sheathing formed from panels of sheathing. An assembly may include a window assembly, the window assembly installed within the window opening. An assembly may include a sealant applied between the panels of sheathing, between the exterior sheathing and the window assembly, and along the side edges and the top edge of the exterior sheathing. An assembly may include a support ledge positioned at the top of the wall panel and connected to a pour stop. An assembly may include a lintel positioned above the window opening, the lintel connected to the frame.

Abstract: Embodiments of the present invention disclose a roll-drop curtain assembly having enhanced stability for supporting curtains of a variety of materials while maintaining structural integrity, shape, and form of the overall assembly itself. The invention utilizes a series of one or more tension cables operatively coupled to the distal end plates of a roll-drop assembly and traversing the length of an inner portion of the roll-drop assembly in a specific manner. The design effectively applies a high degree of tension force to the inner walls of the roll-drop assembly, resulting in increased structural rigidity of the roll-drop assembly overall.

Abstract: A wall element comprises an inner surface, an outer surface, studs and at least one partial cavity and/or cavity. The studs are located between the inner surface and outer surface. The at least one partial cavity and/or cavity are also located between the inner surface and outer surface. The at least one partial cavity and/or cavity are designed to be filled with reinforced concrete The cavity and/or the partial cavity span from the top to the bottom and/or from side to side of the wall element.

Abstract: Various implementations described herein are directed to a formwork system. In one implementation, the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

Abstract: Various implementations described herein are directed to a formwork system. In one implementation, the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

Abstract: The present disclosure provides a structural connector for use with insulated concrete formwork (ICF), comprising: a front surface designed for fastening to the ICF with a connecting piece, wherein the connecting piece is for connecting through the ICF with a secondary structural component; a rear surface designed for receiving a distal end of the connecting piece; and a flange connecting the front surface to the rear surface and defining a longitudinal cavity for receiving a body of the connecting piece, wherein, the structural connector is configured such that upon a concrete pour to form a concrete wall, the structural connector secures the secondary structural component to the ICF and operates as an anchor preventing axial movement of the secondary structural component relative to the ICF.

Abstract: A system for assembling continuous overlapping purlins into position upon a plurality of roof beams without having to remove fasteners securing a first installed purlin into position. The system includes a purlin clip with a lower flange and an upper flange. The second purlin overlapping the first purlin, the first and second purlins each comprising first and second longitudinally disposed ends and at least one keyhole disposed within each longitudinally disposed end. The purlin clip is mounted with fasteners to a roof beam proximate the second end of the first purlin and a primary fastener is passed through the at least one keyhole of the first purlin into the secondary fastener, wherein the primary fastener is not fully received into the secondary fastener and remains available for hanging thereon of the keyhole in the first end of the second purlin.

Abstract: The present disclosure relates to a grid of profiles for a suspended ceiling system, comprising a primary profile having a web, and a first and second secondary profile each having an end provided with a hook-on member, and methods of use thereof.

Abstract: The building party wall assembly comprises a first structural insulated panel and a second structural insulated panel separated by an air gap. The first structural insulated panel comprises a rigid foam insulation core, a first cementitious board disposed on one side of the core, and a second cementitious board disposed on the second side of the core. The second structural insulated panel comprises a rigid foam insulation core, a third double thick cementitious board disposed on one side of the core, and a third double thick cementitious board disposed on the other side of the core. Alternatively, the second structural insulated panel comprises two first cementitious boards stacked on top of each other disposed on one side of the core, and two second cementitious boards stacked on top of each other disposed on the other side of the core.

Abstract: A system for traversing an opening of a construction element the system including a elongated housing with two extendable elements configured to reside at least partially within the housing. The extendable elements may extend beyond the housing and may include flanges or ledges which may engage the ends of a construction element, which may be a wall, and thus allow the system to traverse the opening of a construction element, such as a window or door. A coupler may be utilized to connect to a more than one elongated housing element to provide for traversal across even larger openings. The system may allow a user to easily manipulate the system to fit a plurality of openings and reuse the system a countless number of times.

Abstract: A first protrusion formed on stone or porcelain tile extending from an edge of the tile configured to abut a second tile to space the first tile apart from the second tile by the first protrusion.

Abstract: A system including a first roofing material installed on the roof deck; a second roofing material installed on the roof deck, adjacent to the first roofing material, where the second roofing material includes: a first layer comprising silicone; and a first substrate, where the first layer partially covers a surface of the first substrate, thereby to provide at least a first area of the surface of the first substrate not covered by the first layer, where the first roofing material overlaps at least a portion of the first area; and a flashing material including silicone, where the flashing material covers a portion of each of: the first roofing material, the first layer of the second roofing material, and the first area of the second roofing material.

Abstract: A roof drain including a base defining a channel and an axis, a gravel guard coupled to the base and including a plurality of teeth, where the gravel guard defines a plurality of gullets between the teeth, and a dome coupled to the base, where the dome includes a plurality of ribs, where the ribs define a plurality of gaps therebetween, and where each gap is radially aligned with a corresponding gullet.

Abstract: This invention, in embodiments, relates to a roofing drip edge device that includes a drip edge comprising (i) an upper drip edge that is configured to be installed along an edge of a roofing surface, and (ii) a lower drip edge that is approximately at a right angle to the upper drip edge, a flashing strip member that is secured to the upper drip edge of the drip edge, such that a portion of the flashing strip member overhangs a first side edge of the drip edge, and a connecting member that is secured to the drip edge, such that a portion of the connecting member overhangs a second side edge of the drip edge. This invention, in embodiments, further relates to a method of installing a roofing drip edge device.

Abstract: A stair railing includes at least two vertical posts, at least one horizontal rail and a movable connecting mechanism. The horizontal rail is connected to the vertical post through the movable connecting mechanism, so that the horizontal rail is rotatable in relation to the vertical post. Wherein the movable connecting mechanism includes an insertion part with at least a portion of the insertion part being arc-shaped, and a receiving part that has a receiving space compatible with the insertion part.

Abstract: A ventilation screed includes a base panel configured for attaching at a vertical wall structure. A first flange extends from the base panel and includes a first side and a second side. A second flange extends from the first side of the first flange and partially along the base panel. A third flange extends from the second flange along the first side of the first flange and spaced from the first flange. A terminal end of the third flange is spaced from the base panel. A spacing element is disposed at the second side of the first flange and includes a convex surface. With the base panel attached at the vertical wall structure, the convex surface is between the first flange and a horizontal surface perpendicular to the vertical wall structure and the convex surface flexes to accommodate movement of the horizontal surface relative to the ventilation screed.

Abstract: A connection structure includes: a first structure body and a second structure body which is detachably connected to the first structure body. The first structure body includes a first fitting portion, and the second structure body includes a second fitting portion which is detachably fitted with the first fitting portion. At least one of the first fitting portion or the second fitting portion is an anisotropic elastic structure body including a periodic structure and having an elasticity which differs depending on a direction. When a fitting direction in which the first fitting portion and the second fitting portion are fitted together is a first direction, and a direction which is orthogonal to the first direction is a second direction, the anisotropic elastic structure body has an elasticity which is greater in the second direction than in the first direction.

Abstract: The invention is related to a method of manufacturing a wall panel and a wall panel system. The method includes: forming a glass-fiber reinforced rigid magnesium oxide layer including the steps of: pouring or injecting a slurry of uncured magnesium oxide into a mold, embedding glass fiber reinforcing material therein, and curing the magnesium oxide to obtain the glass-fiber reinforced rigid magnesium oxide layer having a first side and a second side; applying, to the second side of the rigid magnesium oxide layer, an insulation layer, the insulation layer comprising a foam; and optionally applying to the first side of the rigid layer a veneer layer.

Abstract: The present disclosure provides tools, systems, and methods for leveling and aligning tiles. A tile leveling tool for guiding installation of tiles on an uneven installation surface comprises: an elongated main body extending along a longitudinal axis thereof, from a first end to a second end, wherein the main body further comprises a flat reference side, wherein the reference side has a straight reference edge parallel to the longitudinal axis; and at least one adjustable spacer extending from the main body configured to extend toward the installation surface, wherein the adjustable spacer is configured to adjust a space between the main body and the installation surface to arrange the reference edge straight across the uneven installation surface and to guide the installation of the tiles evenly.

Abstract: A gantry-based 3D printer contains two vertical columns, connected with each other by a horizontal fixed beam, designed with the possibility of moving along rail guides. The rails are mounted on the printer base. A cross beam is installed on the vertical columns designed with the possibility of moving in the vertical direction; and the carriage with the print head attached to it and the possibility of longitudinal movement is mounted on the cross beam. The rails are equipped with an alignment system, which contains washers, nuts and screws, the latter of which are embedded in the base of the printer. The vertical columns and a cross beam are equipped with V-shaped rails with an additional leveling system, and the vertical columns and a cross beam are moved by roller carriages with the help of a drive and helical rack.

Abstract: The present invention describes a highly effective wall and stud control system that ensures perfect plumb and even surfaces for various types of wall boards, tile backer boards, and tile foam boards. The system consists of three key components: Part A, a full piece with a breakaway connection and holes; Part B, a full piece with a breakaway connection and slots; and Part C, a corner piece. Each part serves a specific purpose in the system. Part A is attached to the top and bottom of the studs, providing maximum strength through the holes. Part B is used to level out the studs by attaching it between Part A. Part C is utilized in corners where Part A and Part B cannot be installed and also around the shampoo box in the shower area. All these components can be installed over nail plates. The stud leveler finds applications in both shower areas and throughout the entire framed house to ensure level and straight walls before wallboard installation. It is designed for use by builders, contractors, and DIYers.

Abstract: A rooftop perimeter safety system is a barrier system that may include a plurality of supports configured to be secured to a roof top. Each support may include one or more brackets secured to an upright member. The bracket includes at least one cable retainer configured to support a cable therein to form a cable barrier and at least one rail retainer configured to support a rail therein to form a rail barrier. The rooftop perimeter safety system may include at least one cable to form the cable barrier, at least one rail to form the rail barrier, or both the at least one cable and the at least one rail, depending on the application.

Abstract: A cover plate includes a body portion having a plurality of side portions defining an outer perimeter of the body portion. A plurality of receiving slots is disposed along one or more of the side portions of the plurality of side portions of the cover plate. A plurality of connecting members outwardly extending from one or more of the side portions of the plurality of side portions of the cover plate. The cover plate is configured to couple to other cover plates of a similar configuration to define a hole cover system for covering holes in a support surface. The hole cover system may include a centrally disposed aperture for accommodating passage of a structural member therethrough.