Abstract: Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Abstract: Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Abstract: A system for autonomous operation of heavy machinery is disclosed. The system may include at least one camera, configured to be attached to the heavy machinery or be positioned elsewhere at a location which allows the camera to capture images of a movable portion of the heavy machinery and a portion of a site at which the heavy machinery is operating; and a controller configured to: autonomously move the movable portion of the heavy machinery along the calculated trajectory based on at least two images of the at least movable portion of the heavy machinery and the portion of the site received from the camera.

Abstract: A hydraulic system includes a hydraulic mechanism that includes a first and a second chamber. The hydraulic system includes a control valve fluidly connected to the first chamber and a pressure sensor that is configured to measure the fluid pressure in the first chamber. The hydraulic system includes a processing unit connected to the control valve. The processing unit is configured to control a hydraulic fluid flow rate to and from the first chamber of the hydraulic mechanism via the control valve to provide a shock absorption response. The hydraulic fluid flow rate is based at least in part on a pressure measurement received from the pressure sensor. The shock absorption response is based on a simulated hydraulic accumulator.

Abstract: Provided are an energy regeneration device which can regenerate energy of a working fluid discharged from an actuator while controlling a flow rate of the working fluid, and a work machine including the foregoing device. The regeneration device (100) includes a boom cylinder (20), an inertial fluid container (102), an oil tank (110), an accumulator (105), a low-pressure-side opening/closing device (103), and a high-pressure-side opening/closing device (104). A calculation unit (151) calculates a duty ratio for opening/closing the low-pressure-side opening/closing device (103) and the high-pressure-side opening/closing device (104) in accordance with a desired flow rate of a working fluid discharged from the boom cylinder (20).

Abstract: A Mechanical Electrical Plumbing (MEP) tunnel is provided. The MEP tunnel includes a rear side, a first side, and a second side. The MEP tunnel is configured to be disposed in a wall frame. The MEP tunnel may also include a plurality of tubing used for mechanical, electrical, and plumbing utilities. The MEP tunnel is connected to the wall frame via two mechanical devices. The MEP tunnel can move up and down between a raised position and a lowered position in the wall frame via two tracks in the MEP tunnel and the two mechanical devices. The MEP tunnel remains in the raised position during shipping and lowered at the completion of installation.

Abstract: A rotary control structure for a water valve contains: a body, a connection disk, a guide disc, a guide disc, and a stop ring. The body accommodates a control shaft and includes a receiving space and an outlet. The connection disk is connected with a positioning disc including a sector cutout. The guide disc is mounted below the positioning disc and includes a fan-shaped aperture corresponding to the sector cutout. The stop ring is mounted below the fan-shaped aperture and limits the connection disk, the positioning disc, and the guide disc in the receiving space. The body includes a limitation slot, and the control shaft includes a fixing portion and a C-retainer fitted on the fixing portion. The control shaft further includes an insertion retained with a coupling groove of the connection disk, and the connection disk includes a rib configured to urge the positioning disc to rotate.

Abstract: A rotary control structure for a water valve contains: a body accommodating a control shaft, a connection disk, a stop sheet, a guide disc, a limitation unit, and an inflow seat. The body includes a receiving space and an outlet. The stop sheet includes a sector cutout. The guide disc includes a fan-shaped aperture corresponding to the sector cutout. The limitation unit is mounted below the guide disc and is configured to limit the connection disk, the stop sheet, and the guide disc in the receiving space. The inflow seat is secured on the body and includes an accommodation groove, an aperture, multiple inlets, a closing cap, and a fitting peg. The control shaft includes an insertion, and the insertion has a concaved hook, wherein the connection disk includes a notch, the notch has a V-shaped retaining portion, and the connection disk includes a rib.

Abstract: A water faucet device which can perform water discharge control by voice and can perform versatile water discharge control by only a designation by voice and a water faucet system using the water faucet device are provided. A water faucet device according to the invention is a water faucet device (10A) controlling a water discharge state through a network (100) by a user who talks designation contents into a voice input/output unit.

Abstract: A shower faucet with an adjustable water inlet joint is provided. The shower faucet includes an outer pipe, an inner pipe, and the adjustable water inlet joint to provide water to the inner pipe from a wall pipe. The adjustable water inlet joint comprises a threaded through hole and a telescopic connecting pipe. The telescopic connecting pipe comprises a first threaded end and a second threaded end, the first threaded end for screwing the telescopic connecting pipe in or out of the threaded through hole to adjust a length of the telescopic connecting pipe extending beyond the threaded through hole, and the second threaded end for screwing the telescopic connecting pipe into the wall pipe.

Abstract: A self-sealing drain vent cover that allows for a vacuum to be created within piping of a plumbing fixture for unclogging purposes. The vent cover includes a outer cover and a seal insert. The outer cover includes a first tubular body and a first disk top to yield a closed off structure to support the seal insert. The first disk top is terminally and perimetrically connected to the first tubular body. The seal insert adheres to a surface around an overflow port to enclose said port. The seal insert includes a second tubular body, a second disk top, and an annular self-sealing mechanism. The second disk top is terminally and perimetrically connected to the second tubular body. The seal insert is mounted within the outer cover. The self-sealing mechanism is positioned adjacent to a bottom end of the second tubular body and is concentrically mounted to the second tubular body.

Abstract: An automatic toilet plunger includes a plunger body having a top end, a bottom end, and an inside. The plunger body is hollow and cylindrical. A plunger head is coupled to the bottom end of the plunger body. A plunging mechanism is coupled inside the plunger body of the plunger. The plunging mechanism is in operational communication with the plunger head and is configured to cause the plunger head to clear a toilet. A plurality of controls is coupled to the plunger body and is in operational communication with the plunging mechanism. A power source is coupled to the plunger body and is in operational communication with, and provides power to, the plunging mechanism.

Abstract: Wall-mounted sanitary equipment comprises a support supporting a water supply means; a tap support means on which a tap is attached; a funnel and a platform having a bottom and a peripheral edge, such that the platform is configured to forma form a basin under the dispensing head of the tap, the funnel having an upper collection opening for collecting wastewater originating from the platform, the funnel further comprising a lower discharge end connected to a wastewater collection means, the bottom of the platform being pivotably mounted between two positions, a first position in which said platform is folded in the vertical position and a second position in which said platform is kept horizontal in order to act as a basin.

Abstract: A fallen undermount sink complete repair apparatus includes a wall bracket having at least one flange portion configured for fixedly fastening to a vertical wall and a second central portion generally forming an obtuse angle to the flange portion, with an aperture therethrough. Additionally, there is an expandable elongated member pivotably attached at a proximal end to the wall bracket, and at the distal end of the elongated member is a sink bracket head portion generally perpendicular to that of the elongated member and configured to pivot and press against a portion of the underside rim of a detached sink.

Abstract: Power generation devices and methods for use with toilets is disclosed. A number of power generation devices are provided that can be used in combination to power various features in a toilet which will be particularly useful for portable potties that are off the grid. The power generation devices and methods include, for example, using a cell battery inside the toilet bowl or flush tank, a wind turbine, solar panels, and piezoelectricity. The features include, for example, lighting up the toilet with light-emitting diodes (LEDs) to make it easier for users to find the toilet, an audio/video setup for entertainment, and a toilet status light indicator to let the next user know when the toilet paper is out.

Abstract: A linear wall drain that includes a removable faceplate and is adapted to be secured to a recessed front wall, the faceplate including at least one magnet that is affixed to a front surface of the recessed front wall and at least one magnet affixed to a rear surface of the faceplate such that the two magnets will removeably hold the faceplate to the recessed front wall when the two magnets are aligned.

Abstract: Surface water, such as stormwater, is contained in a pond, or other containment having primary semi-isolated treatment areas constructed, or designated therein, which are suitable for establishing ecological communities for treatment of water within the containment. Water for treatment is induced to flow through the semi-isolated areas and the ecological communities therein for treating the water, such as by bio-filtering, breakdown and bioremediation of water-soluble or hydrocarbon-based contaminants and inhibition of the proliferation of waterborne pathogens. The treated water is then discharged from the semi-isolated areas, such as for use downstream. Discharge of the treated water from the primary semi-isolated treatment areas, as well as the use of pump systems, induces the flow of water through the semi-isolated areas and ecological communities therein to effect the treatment.

Abstract: A device for separating and lifting solids from waste water has a stationary drum provided with a first filter screen and a screw conveyor. An auger shaft has a lower portion located inside the stationary drum, which is partially surrounded by a second filter screen. The lower portion is connected to a cleaning apparatus of the first filter screen formed by a plurality of comb-holder arms mounted on a cross shaped element. The comb-holder arms are integral at the opposite end to an anti-skid ring sliding in a sliding seat integral with the support frame. Each comb-holder arm has an elongated comb facing the first filter screen and in contact with it. The comb-holder arms are connected to the auger shaft by means of an epicyclic secondary gear.

Abstract: Disclosed is a modular building system including, in some embodiments, one or more wall panels, one or more floor panels, and one or more roof panels. The modular building components of the modular building system including the one or more wall panels, the one or more floor panels, and the one or more roof panels can faun housing or storage structures with electrical wiring, plumbing, or both wiring and plumbing. The housing or storage structures can be erected by one or more persons without a need for a plumber, an electrician, or power tools. Also disclosed is a method for erecting one or more housing or storage structure in accordance with the modular building system.

Abstract: A building construction system (2) for construction of a building (20) is disclosed. The building construction system (2) comprises a plurality of modules (M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11), each comprising at least one centrally arranged insulation member (4, 4?) sandwiched between a first cover plate (12, 12?) and a second cover plate (14, 14?). The at least one insulation member (4, 4?) is made in polyurethane (PUR) or polyisocyanurate (PIR). A reinforcement connection structure (10) extends between and is mechanically connected to opposite cover plates (12, 12?, 14, 14?). At least a portion of the joints (6, 6?) between adjacent cover plates (12, 12?, 14, 14?) are glued together.

Abstract: In one aspect, a smart corner is provided that can be prefabricated. The smart corner comprises a rear side including a first hole, a first side including a second hole, a second side including a third hole, and a top. A wall frame is also provided. The wall frame includes a top plate, a bottom plate, studs, and four smart corners. A framing system is also provided comprising at least two wall frames. The at least two wall frames connect via the smart corners.

Abstract: One or more embodiments of the present disclosure provide a jointed member. The jointed member may include a first elongate section having a surface defining a first oblong opening, a second elongate section having a surface defining a second oblong opening, and a fastener passing through the first oblong opening and the second opening to connect the first elongate section and the second elongate section, where the first oblong opening and the second oblong opening move relative each other and the fastener as the jointed member transitions from a first predetermined state towards a second predetermined state.

Abstract: The “Safe immediate accommodation structures” is a modular, very light, sturdy, and economical structure, which rectifies all the hurdles and limitations of the past in the field of temporary and permanent accommodation, when it comes to providing immediate and secure accommodation. Due to its unique geometrical design (FIG. 1&2) it enables us to have the least number of modules, with the possibility of changing the dimensions, and the potential for combination, interconnection and disintegration, in the 6 coordinate directions. It is also very resistant against earthquakes, hurricanes, tornadoes, pressure, long term exposure to sun light, corrosion due to downpours.

Abstract: A large-scale additive manufacturing system for printing a structure includes an extrusion system and a knitting system. The extrusion system includes a nozzle configured to receive a supply of structural material and to selectively dispense the structural material in flowable form, and a first gantry configured to move the nozzle along toolpaths defined according to a structure to be printed such that structural material may be dispensed along the toolpaths to print a series of structural layers, wherein the series of structural layers bond together to form all or a portion of the structure.

Abstract: A monolithic corner encapsulates one or more panels while maintaining structural integrity and maintain hygienic properties. The corner may securely receive one or more panels and provide flexibility to easily adjust the one or more panels. The corner may simplify installation and an ability to adjust connected panels without compromising safety, installation time, and sterility.

Abstract: A construction anchoring system includes one or more anchor apparatuses which are mountable relative to a form used to create a concrete support structure. The concrete is deposited in the form and cures whereby the one or more anchor apparatuses becomes embedded within the concrete support structure. The embedded anchor apparatus is readily accessible to be coupled with, or to support, construction supplies or equipment such as ductwork, electrical cables, plumbing, sprinklers, safety lines or fences, etc. within a construction site. A plurality of anchor apparatuses may be mounted relative to the concrete form to create a system for organizing the installation of construction materials and/or safety equipment.

Abstract: A panelized pre-finished siding system with a locking edge. The device is a pre-finished stucco siding panel system that can be installed in any weather condition without extra preparation or consideration. The system has “SL” trim lock system that can be installed by professionals or can be used by the DIY (do-it-yourselfer). It provides a weather tight cladding system that adds beauty and insulation value to the building envelope.

Abstract: A building assembly includes a floor frame, a roof, and walls extending between the floor frame and the roof and interconnected to define an interior and exterior of the building assembly. Each wall includes panels each defining an axis and having first and second ends, inner and outer sides, top and bottom surfaces, an upper notch formed through the top surface, and a lower notch formed through the bottom surface. Each notch is spaced inwardly along the axis from at least one end. The panels include first and second panels. The lower notch of the first panel mates with the upper notch of the second panel to form an interlocking joint to interconnect the first and second panels and form adjacent interconnected walls of the building assembly.

Abstract: A micro office wall panel with a layer of backed mineral felt along a side wall. There is further a cavity created along an opposite side wall. Also, in the middle of the lower part of the wall panel there is a radial fan situated under the layer of the backed mineral felt under the cavity. In the area of the radial fan, the side wall facing out of the micro office features a suction hole. Above the radial fan there is an inlet of an air supply line that is situated longitudinally in the middle of the cavity. There are also inlets for two air exhaust lines, each of which is situated longitudinally in the cavity along their sides. The wall panel further features exhaust lines and an acoustic damper.

Abstract: A pass through grid connector clip for a suspended ceiling. The grid connector clip is made of two identical halves connected back-to-back by a fastener passing through a first aperture of both identical halves or other joining method. The identical halves each have a web with a first side and an opposite second side defining a height; a third side and an opposite fourth side defining a length; a louver element closer to a fourth side than the third side; a half sleeve located between the clip and the louver element and extending from the first side to the second side the in a substantially semi-circular shape; the first aperture located between the half sleeve and the clip or the half sleeve and the louver element. The halves include a clip connected to the third side and two flanges projecting in substantially the same direction from opposite sides of the web. As a result, when the halves are joined back-to-back they form a pass through sleeve.

Abstract: In one aspect, a wall panel is provided that includes a cross laminated timber panel, a first extrusion, and a second extrusion. The cross laminated timber panel includes a top side, a bottom side, a first side, and a second side. The panel also includes a notch in the bottom side and a T-flange on the top side. A wall system is provided comprising a plurality of wall panels. A method of installing the wall panel system is also provided.

Abstract: A concrete dowel slip tube assembly is provided for use in maintaining a planner consistency of a cured concrete slab formed on a support surface. The assembly comprises a plurality of elongate slip tubes, each having a length dimension and a tubular hollow interior compartment. Dowels are slidingly engageable to the hollow interior compartment to allow for translation along the interior compartment. A support frame defines a plurality of integral slip tube retaining members, disposed at evenly spaced locations along the support frame, the retaining members being configured to receive and engage associated slip tubes to the support frame in a common defined orientation. The support frame and the retaining members are formed as a unitary construction.

Abstract: The present invention relates to a corrosion-induced shape memory fiber, a preparation method and application thereof. The corrosion-induced shape memory fiber is composed of a core fiber and/or a core fiber with a corrosion-resistant coating, and a corrodible coating; the core fiber and/or the core fiber with the corrosion-resistant coating are in a tensile stress state along the length of the corrosion-induced shape memory fiber; the corrodible coating is in a compressive stress state along the length of the corrosion-induced shape memory fiber; the core fiber and/or the core fiber with the corrosion-resistant coating and the corrodible coating are in a tensile-compressive equilibrium state along the length of the corrosion-induced shape memory fiber; and the corrodible coating is coated outside the core fiber and/or the core fiber with the corrosion-resistant coating.

Abstract: The disclosure herein discloses a rebar tying tool that ties plural rebars using a wire. The rebar tying tool includes a housing and a twisting motor, and may include a twisting mechanism that twists the wire around the plural rebars by the twisting motor. The twisting mechanism may include a screw shaft, a gripping member that grips the wire in cooperation with rotation of the screw shaft, a first reduction mechanism that reduces and transmits rotation of the twisting motor to a relay shaft, and a second reduction mechanism that reduces and transmits rotation of the relay shaft to the screw shaft. The first reduction mechanism may be a coaxial reduction mechanism, and the second reduction mechanism may be a parallel-axis reduction mechanism.

Abstract: A method of forming an asphalt mixture includes mixing a polyol with a bio-source material to form a bio-asphalt. The method can further include mixing the bio-asphalt with a bitumen source different from the bio-asphalt to form an asphalt mixture. The bio-source material can include an oil, such as a vegetable oil, an animal fat, or any combination thereof. The bitumen source can include a petroleum-based asphalt. The method can further include adding a modifier, such as a fatty acid, a polycarboxylic acid, a polyacrylic acid, a polyacrylate comprising a copolymer, or any combination thereof. Moreover, a roofing grade asphalt mixture includes a bio-asphalt. The bio-asphalt includes an alkyd, wherein the alkyd is a reaction product of a polyol and a bio-source material. The roofing grade asphalt mixture further includes a bitumen source material and particles.

Abstract: A shingle assembly includes a panel that has a front side, a back side, an upper edge, a lower edge, a first lateral edge, and a second lateral edge. An upper coupler is attached to and extends along the upper edge. A lower coupler is attached to and extends along the lower edge and snappily engages an upper coupler of another one of the shingle assemblies. A flange is integrally attached to and extends along the second lateral edge such that the flange and the panel form a unitary member. The flange extends laterally away from the panel. A lip is coextensive with and extends forwardly of an upper edge of the flange and inhibits water from wicking upwardly beyond the upper edge of the flange.

Abstract: The present disclosure concerns a skylight protection assembly to protect a skylight of a roof. The skylight protection assembly comprises a frame superposable to a mounting surface of the roof to surround at least partially the skylight and securable to the roof, the frame comprising at least one frame member having a roof-engaging portion, a screen-supporting portion and an outer side; a protection screen engageable with the screen-supporting portion of said at least one frame member to define with the frame a skylight protection chamber configured to contain the skylight. The frame member comprises an upper frame member, the outer side of the upper frame member having a water-flowing profile considered in a plane substantially parallel to the mounting surface of the roof. The present disclosure also concerns a method for protecting a skylight of a roof.

Abstract: A roof snow shovel device and method of use are disclosed. The device may include an elongated protective component which may be attached to a shovel head or may be configured to receive at least part of an edge of a shovel head. The device may include at least one protective end unit, which may be at least partially rounded. The protective end component may at least partially extend below the lowest surface of the elongated protective component relative to the shovel head or behind the shovel head. The protective end components and/or the elongated protective component may be permanently attached to the shovel head, may be removable connected to it, or may be integral features of the shovel head. The elongated protective component may be configured for or attached to a range of sizes and shapes of shovel heads.

Abstract: The present disclosure relates to stair systems and methods for allowing stair movement between building levels while maintaining the structural integrity of the stair system for safe egress passage. The systems and methods of the present disclosure allow for independent movement of the surrounding building walls, landings, floor slabs, and/or any other portion of the surrounding building structure or stair system. The embodiments of the present disclosure are suitable for use in both new constructions as well as in existing constructions for retrofit applications to allow for movement between levels, landings, or within stairwell structures. The present disclosure reduces stair damage during building movement whether it is from wind, thermal, or seismic activity, and/or any other type of suitable force or experience, as the present disclosure allows for directional movement, or a combination thereof, including tension and compression, lateral, or vertical movement.

Abstract: In a mechanism for recycling energy from stairs (200), a step platform (210) is moveable between an upper and lower position. An energy storage device (220), coupled to the platform (210), stores energy when a downward force is applied thereto, causing the step platform (210) to move to the lower position. The energy storage device (220) also releases stored energy as the step platform (210) moves from to the upper position. A controllable locking mechanism (240) locks the step platform (210) in the lower position when the downward force has caused the step platform (210) to move into the lower position. A sensor (250) determines when a downward force has been applied to the next higher step platform (250). A controller (300) signals the controllable locking mechanism (242) to unlock the step platform (250) when the step platform (250) is in the lower position and when the downward force has been applied to the next higher step platform (250).

Abstract: A ligature-resistant grab bar provides ligature-proof self-support of persons at toilets, showers, baths or other locations where persons require self-support assistance. The ligature-resistant grab bar includes an elongate body that may be an extruded member, which has a flange disposed at a planar rear surface extending from the elongate body on a first side and a second side of the elongate body. The sides of the elongate body have curved side channels for drainage of water that extend from an inner edge of the flange toward a central axis of the elongate body to a gripping profile forming a front of the elongate body, which may be circular or elliptical in cross-section, of a front half of the gripping profile. The ligature-resistant grab bar also includes a bottom end cap and a top end cap attached to the ends of the elongate body.

Abstract: A panelized EIFS stucco siding system with a locking edge. The device is a pre-finished stucco siding panel system that can be installed in any weather condition without extra preparation or consideration. The system has “SL” trim lock system that can be installed by professionals or can be used by the DIY (do-it-yourselfer). It provides a weather tight cladding system that adds beauty and insulation value to the building envelope.

Abstract: A floor panel is provided including a floor chassis, an acoustic-mat layer and a gypsum concrete layer. The floor panel may be prefabricated and quickly installed on the job site thereby cutting construction time and costs.

Abstract: Floor panels are shown, which are provided with a mechanical locking system that may be locked with a vertical displacement of a first panel against a second panel. The locking system includes a flexible strip that during locking bends upwardly or downwardly. The locking system includes a first and a second joint edge section with different locking functions. One section provides a horizontal locking and another section provides a vertical locking.

Abstract: A computing system receives from a media presentation device a query fingerprint stream representing media content being presented by the media presentation device, where the query fingerprint stream has been determined to represent a first channel. The computing system then detects that a threshold mismatch exists between the received query fingerprint stream and a reference fingerprint stream representing the first channel, thus indicating a likelihood that the media presentation device has transitioned from presenting the first channel to presenting a second channel. Responsive to detecting the threshold mismatch, the system thus discontinues channel-specific action with respect to the first channel. For instance, the system could discontinue superimposing of first-channel-specific content on the presented media content and perhaps start superimposing of second-channel-specific content instead.

Abstract: The invention relates to a decoupling sheet (1) having a carrier plate (2) and a plurality of nubs (4) protruding from the carrier plate plane (3). According to the invention, a plurality of protrusions (21a) and/or recesses (21b) is provided on the side of the nub base (10) of at least one nub (4) facing toward the nub interior space (20) and/or a plurality of protrusions (21c) and/or recesses (21d) is provided on the side of the carrier plate (2) facing toward the nub interior space (20), especially wherein the protrusion (21a) and/or the recess (21b) on the nub base (10) and/or the protrusion (21c) and/or the recess (21d) on the carrier plate (2) has a height and/or a depth greater than 1 ?m, preferably greater than 100 ?m, further preferably between 100 and 1000 ?m and especially at least substantially between 300 and 500 ?m.

Abstract: A shock absorbing mat/tile comprises a body having a generally planar, major top surface and an opposite bottom surface and a plurality of shock absorbing members depending from the bottom surface. At least one of the shock absorbing members has at least one relief formation formed therein configured to accommodate lateral expansion of the shock absorbing member during axial compression thereof.

Abstract: A cove base for sealing a gap between a wall and a floor using a sealant is provided. The cove base comprises a base configured to extend along a portion of the wall when installed. A shoe extends at an angle from the base and is configured to extend towards the floor and away from the wall when installed. A heel extends from the shoe and is configured to contact the floor when installed. A channel configured to receive the sealant is defined by the space between the heel and the shoe.

Abstract: A wall base for sealing a gap between a wall and a floor is provided. The wall base comprises a base member configured to extend along a portion of the wall. A shoe protrusion extends at an angle from the base member and is configured to extend towards the floor and away from the wall. A heel portion extends from the shoe protrusion and is configured to contact the floor. A channel configured to receive the sealant is defined by the space between the heel portion and the shoe protrusion.

Abstract: For leveling tile, a tile leveling device (100) includes a tower (105), a base (120), and leveling ridges (130). The tower (105) includes a cross piece (110) and at least one strut that extends (115) in a distal direction (150) along a first axis (145) from the cross piece (110). Each strut (115) has a first traverse width (170). The base (120) is connected to the at least one strut (115) at a base intersection (140) and extends transversely from the at least one strut (115). The cross piece (110), the at least one strut (115), and the base (120) form a tension gap (125). The leveling ridges (130) are disposed on a proximal surface (121) of the base (120). Each leveling ridge (130) comprises a distal ridge side (131) connected to the base and a proximal ridge surface (132).