Abstract: The present disclosure is directed towards preventing an overflow of a toilet bowl in the event of, for example, a clogged toilet. A toilet flush handle may be in communication with a toilet flush valve. The toilet flush handle may be configured to rotate in a first direction and in a second direction. By rotating in the first direction, the toilet flush handle may initiate a toilet flush. By rotating in the second direction, the toilet flush handle may interrupt the toilet flush.

Abstract: A flush toilet includes a bowl having a waste-receiving surface and a rim; on either the left or right side inside the front area of this bowl, a rim water passageway is formed and a rim spouting port is formed; the water passageway formed at the downstream side of this rim spouting port forms a flow path cross section with the inner circumferential surface of the rim, the shelf surface formed under this inner circumferential surface, and the overhang portion formed over the inner circumferential surface; the height dimension of the flow path cross section is set to increase with distance on the downstream side, and the width thereof is set to decrease with distance on the downstream side, so that from the rim spout port toward the downstream side, the cross sectional area of the flow path cross section is approximately constant.

Abstract: A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel, the at least one jet channel having an inlet port and a jet outlet port configured for discharging fluid to a sump area, wherein the sump area is in fluid communication with a trapway. The bowl has a closed jet pathway including the jet channel and extending from the jet flush valve assembly outlet to the jet channel outlet port to maintain the jet channel in a primed state with fluid from the jet flush valve assembly so as to assist in preventing air from entering the closed jet pathway. Flush valves are also disclosed having back-flow preventer mechanisms and/or at least partly flexible valve covers for use with the toilet systems and methods herein.

Abstract: A urinal assembly having a frame and a plurality of posts or posts extending from the frame. The frame can include a plurality of openings. The openings can be defined by a plurality of sides and corners. The posts can extend from the corners and/or from the sides of the openings. In some embodiments, posts extend from a first face and a second face of the frame.

Abstract: A flow control assembly comprising: a mounting bracket attachable to a wall of a collection chamber, the mounting bracket having an opening extending therethrough; a flow control module detachably coupled to the mounting bracket, the flow control module having an inlet and an outlet, the outlet being aligned with the opening of the mounting bracket; and a gasket having an opening extending therethrough, the opening being smaller than the outlet of the flow control module and the opening of the mounting bracket. The gasket is disposed between the flow control module and the mounting bracket so as to seal the flow control module against the mounting bracket, with the opening of the gasket aligned with the outlet of the flow control module and the opening of the mounting bracket so as to restrict flow out of the flow control module. Also described is a corresponding kit of parts and method of installation.

Abstract: A damp proof course article (20) for forming a damp proof course in a substrate (10) is disclosed. The damp proof course article comprises an absorbent member (22) and a damp proof course material absorbed into the absorbent member. The damp proof course material comprises an active agent, wherein the active agent comprises an alkoxysilane.

Abstract: A microporous insulation material mixture is blended and the blended mixture is spread across a lower conveyor belt which is trained over rollers. To aid the spreading of the mixture a spreading device is used. The mixture is delivered by the conveyor to a pressing system which in this case comprises an upper conveyor belt. The pressing system also comprises a nipping means provided in this case by a plurality of upper and lower nipping rollers. The gaps between the individual rollers are adjustable. An upper fleece liner is led from a delivery roller to lie between the upper conveyor belt and the insulation mixture and a lower fleece liner is fed from a delivery roller to lie between the insulation mixture and the lower conveyor belt. The fleece liners may be used to encase the core prior to enclosing in an envelope and applying a vacuum.

Abstract: Disclosed is a wall assembly including preformed building blocks and a trellis type support member for maintaining the building blocks in place in the desired orientation. The wall assembly further includes at least one support for holding the trellis upright. The individual blocks are connected to the supporting trellis for added stability. Although not every block in the wall need be connected to the trellis support member in order to achieve the desired added stability, it is preferred to connect each block in the wall to the trellis. Connectors are provided for connecting the blocks to the trellis. Each block preferably is connected to the trellis by at least one connector, most preferably by a pair of connectors. To accommodate relative movement or shifting of the blocks during installation and in situ, the connectors are preferably movably connected to the trellis or the block, or both.

Abstract: Premanufactured structures for constructing buildings comprise a construction system for an energy efficient multi-story building with standard single or mixed units. The multi-story building is constructed using premanufactured structures: non-weight bearing walls with finished exterior including all electrical, insulating, plumbing and communications components that are premanufactured at a site distant from a building site, and the non-weight bearings walls are attached to a floor and ceiling slabs, interfacing with each other to enclose units of the building; interior components that are premanufactured at a remote site to connect to inside portions of the non-weight bearing walls; and exterior components that are premanufactured at the remote site to attach to exterior surfaces of the building.

Abstract: Disclosed is a clip and method of mounting a furring channel to a load bearing member of a drywall grid system. The load bearing member includes an elongated web having an enlarged upper portion and a lower portion from which a pair of coplanar flanges projecting outward. The clip includes a bottom wall and an end wall from which two hanger hooks project upward. Each hanger hook includes a folded over portion configured to snap-fit and entrap a portion of the enlarged upper portion of the load bearing member, with the bottom wall being disposed on one of flanges of the load bearing member. A second clip is mounted on the load bearing member in a similar manner so that its bottom wall is disposed on the other of the flanges of the load bearing member, and with the hanger hooks of the two clips being interposed. A respective furring channel is mounted on each of the clip to be supported thereby.

Abstract: The invention relates to a modular building (2), to be assembled in various sizes and in various environments, having a generally triangular transverse sectional profile, wherein the modular building comprises a double sloping roof (6) over the generally triangular transverse sectional profile, and wherein the one or more double sloping roof panels comprise composite panel material.

Abstract: A slat roof (1) comprising beams (2), several slats (3) arranged parallel to one another therebetween and slat shafts (4) by means of which these slats (3) are rotatably fastened to the beams (2), wherein the slat shaft (4) of at least one slat (3) is provided, on at least one end by means of which it is attached to said beam (2), with at least one radial projection (5) and the respective beam (2) comprises a fitting opening (8) with a shaft opening (6) through which the slat shaft (4) extends and an insertion opening (7) which ends in the shaft opening (6) in such a manner that the slat shaft (4), in a first position with the radial projection (5) at the location of the insertion opening (7), can be fitted through the fitting opening (8) by its end and, in a different position, the radial projection (5) engages behind a part (9) of the beam (2) which delimits the shaft opening (6) adjacent to the insertion opening (7). In addition, a method for adapting a slat roof to form a slat roof (1) as described.

Abstract: A method of producing a plate-like construction having a double-wall structure and its use. According to the present invention, several elongated profiles which have essentially straight central axes are arranged against each other in such a way that adjacent hollow profiles abut each other and together form, in general terms, a flat stack having two opposite sides. The hollow profiles are welded together in order to join them with welded seams, in which case the welding is essentially carried out simultaneously from both sides of the stack. Besides good flexural strength and the opportunity to recycle, thermoplastic plates which are produced by means of the present method exhibit resistance to corrosion, decay and mould.

Abstract: The insulating barrier of a panel including has a first stratum and a second stratum, each having a plurality of ridges that face each other, and run athwart of each other. Clearance between at least some adjacent pairs of the ridges provide a mechanical chase that reaches across at least most of the panel. A cladding overlaying at least one side of the insulating barrier is denser than the barrier. The mechanical chase is in the form of a groove through which a utility feed can be routed when the panel is to be mounted in a building.

Abstract: A post sleeve provides a substantially permanent base for supporting a post for a fence or sign, and from which one post can be removed and replaced with another post. The sleeve includes a concrete body that is poured on site, using a sleeve core prepositioned in the post hole, and around which wet concrete is poured. After the concrete is cured, the core is removed, leaving a post sleeve cavity configured to receive a post. The core can be rigid, or can include a flexible shell and stiffener. A preformed post sleeve top can be attached to the sleeve core and positioned therewith in the post hole, to become a permanent part of the post sleeve, once the concrete cures. A drain is attached to the core, and remains in the sleeve when the core is removed, and can be a percolation chamber, or passage extending below the sleeve.

Abstract: A set of machines and related systems build structures by the additive assembly of discrete parts. These digital material assemblies constrain the constituent parts to a discrete set of possible positions and orientations. In doing so, the structures exhibit many of the properties inherent in digital communication such as error correction, fault tolerance and allow the assembly of precise structures with comparatively imprecise tools. Assembly of discrete cellular lattices by a Modular Isotropic Lattice Extruder System (MILES) is implemented by pulling strings of lattice elements through a forming die that enforces geometry constraints that lock the elements into a rigid structure that can then be pushed against and extruded out of the die as an assembled, load bearing structure.

Abstract: A pre-formed header assembly creates a rough wall opening for a metal door/frame, permitting completion of electrical, ducting, drywall, etc. prior to receiving/installing the door frame. The header is secured to first and second king studs at respective locations positioned beyond a desired door frame location. The header includes four different channels, one of which is utilized at two locations. The first channel has a first length to span between the king studs. The second channel has a second length, and the third channel a third length, which correspond to minimum dimensional requirements for completing the wall. The base of the second and third channels are each fixedly secured to the base of the first channel. The base of the fourth and fifth channels are fixedly secured to the first and second ends of the base of the first channel, respectively, substantially perpendicular thereto, for attachment to the king studs.

Abstract: A glass beam element, for constructing a loadbearing structure, comprises at least one elongate structural reinforcement section extending along a longitudinal direction, and at least one glass segment bonded to said at least one elongate structural reinforcement section. The at least one elongate structural reinforcement section comprises a weldable material, and the at least one glass segment has a length along the longitudinal direction that is shorter than the elongate structural reinforcement section such as to allow welding of an end region of the at least one elongate structural reinforcement section without thereby damaging the at least one glass segment.

Abstract: A stud weldable rebar includes a steel bar comprised of a material composition confirming to ASTM 706 which extends along an axis A from a first end to a second end. The steel bar includes a base portion disposed adjacent the first end which has a base diameter D1 to define a base cross-sectional area of the base portion. The steel bar also includes an upset portion disposed adjacent the second end which has an upset diameter D2 being greater than said base diameter D1 to define an upset cross-sectional area of said upset portion. The material composition of the steel bar is restricted to a carbon equivalency between 0.31 and 0.43, and the upset cross-sectional area is approximately 13.5% to 22.5% greater than the base cross-sectional area to provide A706 rebar that surprisingly meets both the AWS D1.1 and ACI 318 standards after stud welding.

Abstract: A post-tensioning tendon may include a tension member including a strand and sheath, the sheath having an outer surface. The post-tensioning tendon may also include an anchor coupled to an end of the tension member, the anchor including a tubular extension through which the tension member is passed. The tubular extension may have an engaging surface. The post-tensioning tendon may additionally include a sheathing retention assembly. The sheathing retention assembly may include an outer cap, the outer cap having a forcing surface. The outer cap may be coupled to the tubular extension. The sheathing retention assembly also may include one or more holding elements positioned at least partially within the outer cap. The one or more holding elements may each have a tapered outer surface abutting the forcing surface. The one or more holding elements each may include an inner surface that engages the outer surface of the sheath.

Abstract: A cool roofing system includes highly reflective calcined kaolin particles having a solar reflectance of 80% to 92%. When applied to a roofing substrate, the highly reflective kaolin particles produce a roofing system having a solar reflectance greater than or equal to 70%.

Abstract: A non-slip roof attachment system for attaching structures to residential and commercial roofs without the use of penetrations to roofing shingles and sealing layers is described. The non-slip attachment system may be used to attach roof mounted systems such as solar panels. The non-slip attachment system also allows for the quick removal of such roof mounted systems rapidly and without the need for repair of penetrations.

Abstract: A skylight shade device and skylight mounted on a roof of a building includes a roof and a skylight installed on the roof. A shade element including photovoltaic cells is positioned to occlude at least a portion of high angle sunlight through the skylight dome without occluding low angle sunlight through the skylight dome.

Abstract: A screen device (I), comprising a covering which comprises a beam (2, 3, 4) as a structural part (2, 3, 4) of the covering and which is attachable to at least one adjacent structural part (2, 3, 4, 5) of the screen device (I), and comprises a end cap (6, 6?) which is attachable to one end of the beam (2, 3, 4) in order to attach the beam (2, 3, 4) to the adjacent structural part (2, 3, 4, 5) of the screen device (I).

Abstract: A tool for removing roof shingles is disclosed having a handle, a split shaft, a pair of roller wheels and a replaceable blade member. A pair of handles extends orthogonally from the proximal end of the shaft, while the distal end of the shaft separates into a first and second portion that support a flat, shingle-removing blade. Roller wheels are positioned adjacent to the blade such that the blade and wheels can be positioned along the roof surface to allow sliding of the blade under shingles and to provide a fulcrum point from which to lift the blade from beneath any secured roof shingles during removal. The shaft upper portion may include a slight upward bend to reduce back strain, while the user handles are preferably rotatably support to allow the tool to rotate as it is slide without the handles rotating relative to the user's hands and causing blisters.

Abstract: A roofing material moving apparatus. This apparatus facilitates loading, unloading, and unrolling a roll of roofing material. Two load supports form a concave shape having a depressed region, a fulcrum end, and a junction end. A pair of legs extends from the fulcrum end of the load supports. A first pair of narrow rollers rotatably affix to a first crossbar. A second pair of narrow rollers rotatably affix to a second crossbar. Two pair of wide rollers rotatably affix to a pair of third crossbars extending between the depressed region of the load supports. The two wheels work together as a fulcrum for movement and pivoting of the apparatus.

Abstract: A canopy including a flexible cover and a framework. The cover carries two rods, one secured to each of the opposite sides of the cover. Each of the rods has a gear attached to each of its ends. Brackets attached to the four corners of the framework each include a socket sized to receive the rod end, and, also, each bracket includes a pawl. When the rod is positioned in the socket, the gear on the rod is aligned with the pawl on the bracket to complete a ratchet tensioning mechanism that can be operated to progressively tighten the cover over the framework. To install the cover, the cover is rolled up on the rods and placed on the framework. The cover is then unrolled from the rods towards opposite sides of the framework where the rods are secured in the bracket sockets, tightened by the ratchet mechanisms, and secured by a locking pin. The operation is simply reversed when the cover is to be stored on top of the framework, or removed for storage elsewhere.

Abstract: Covering comprising a structure formed by a plurality of panels provided on their lower face with at least one guide formed by a groove giving access to a cavity and longitudinal profiles perpendicular to said grooves on the panels, said profiles having, in turn, a guide and clips housed simultaneously in the cavities of both guides of the panel and the profile, the clips having a resilient body that is housed, in the expanded position, in the corresponding cavity, said body comprising at least two legs, each leg having, in turn, a shoulder area intended to make contact with the wall of the cavity immediately adjacent to the groove.

Abstract: The present invention relates to a heat-insulating finishing material and, more particularly, to an outer-wall heat-insulating finishing material configured such that tiles can be arranged on the heat-insulating material at a predetermined interval using an interval plate, by applying mortar to the bottom surface and the upper, lower, left, and right surfaces of the tiles, the tiles can be firmly attached to the surface of the heat-insulating material, and, by means of a change in shape of the interval plate and an intaglio pattern formed on the surface of the heat-insulating material, the tiles, which are fitted to the interval plate and attached to the surface of the heat-insulating material, can remain attached, with a maximized attaching force, regardless of various external forces.

Abstract: Installable temporary modular floor configured to be arranged on a surface to be protected so as to temporarily cover/face said surface. The floor comprises at least two panels, which are arranged side by side in adjacent positions, substantially coplanar to each other. The panels are provided on the relative sides with at least one recess that defines, with a corresponding recess made in one side of an adjacent panel, a seat. The floor also comprises at least one connecting plate, which is configured to be engaged in the seat to make the joint coupling of said panels.

Abstract: The cove base molding strip includes a body including a planar portion having a front surface and a rear surface and a curved portion having a concave surface continuous with the front surface and a convex surface continuous with the rear surface. The rear surface includes at least a first channel. A cove anchor projects from the convex surface, and the intersection of the front surface and the rear surface define a rounded tip that projects from the planar portion.

Abstract: A tool for use during installation of a pre-hung door. The tool includes a base and at least one orientation indicator, such as a bubble level, mounted to the base. The tool also includes at least one spacer extending from the base. The at least one spacer may be positioned between an edge of a door panel and a respective adjacent portion of a door frame. The tool may also include at least one tongue extending from the base in a direction opposite the at least one spacer. The at least one tongue may be positioned between a weather strip and a face of the door frame so that the tool can remain in place when the door panel is open relative to the door frame.

Abstract: A method and assembly for laying and leveling adjacent tiles. The assembly includes a base member having a bottom plate and a cam tool. The cam tool is pivotally combined with the base member so that the cam tool rotates relative to the base member about an axis of rotation. The cam tool has a handle combined with a cam member. The cam member has a tile engaging surface around its outer periphery with a first portion that is a first distance from the axis of rotation and a second portion that is a second distance from the axis of rotation. Rotation of the cam tool around the axis of rotation causes the distance between the tile engaging surface and the bottom plate to change. One or more tiles is adapted to be placed between the tile engaging surface of the cam member and the bottom plate of the base member. The tiles are compressed between the tile engaging surface and the bottom plate as the cam tool is rotated to a desired position.

Abstract: A work platform system having a first work platform. The system having a first bracket attached to the first scaffold and extending below and outward beyond the first scaffold between the first rail and the second rail of the first leg assembly. The system having a second bracket attached to the first scaffold and extending below and outward beyond the first scaffold between the first rail and the second rail of the first leg assembly. The system having a second work platform. The first end of the second scaffold is disposed on the first bracket and the second bracket with the first bracket and the second bracket extending between the first rung of the third leg assembly and the second scaffold. A method for using a work platform system.

Abstract: We provide a platform (10) comprising a deck element (14) having a load-bearing member (18) secured to at least one support beam (16) of the deck element (14), and a plurality of first connection arrangements, and a plurality of deck support members (30) each having a second connection arrangement, wherein the deck element (14) is moveable with respect to the plurality of deck support members (30) to connect the deck element (14) to the plurality of deck support members (30), and wherein each of the first connection arrangements is configured to engage a respective one of the second connection arrangements, the first connection arrangement being one of an engaging member (20) or a receiving formation (35), and the respective second connection arrangement being the other of an engaging member (20) or a receiving formation (35), such that movement of the engaging member (20) in a first engaging direction causes the engaging member (20) to engage the receiving formation (35), to restrict movement of the deck ele

Abstract: A sealing structure for the bottom of a beam space between precast panels, comprising: a first precast panel and a second precast panel substantially aligned to each other along a single plane and spaced from each other by a space, each of the first precast panel and the second precast panel defining an inner edge adjacent to the space; a soft pad abutting the space for sealing a bottom of the space; a plate abutting the soft pad; a fastening device securing a first side of the plate and a second side of the plate to the first precast panel and second precast panel, respectively, so as to assist the soft pad in the sealing of the bottom of the beam space; wherein the fastening device does not contact the soft pad.

Abstract: The present invention is directed to a flexible concrete form system having both flexible and rigid parts that are easily assembled and disassembled using a multi-contact point connection system. The concrete form system can be extended or stacked in a wide variety of configurations to accommodate almost any desired concrete shape.

Abstract: Applicant has created an apparatus for patching a hole in a wall. The apparatus preferably comprises a multi-section backer plate and a setting or installation tool. The backer plate comprises three rotatably joined sections, together presenting a face that is adhered to an inner wall of the hole, thereby supporting a filler material to fill the hole. The hinges allow the left and right sections to fold forward but not rearward of the planar surface of the middle section. The plate and tool are configured to permit the tool to be selectively joined to the plate at multiple locations along the plate.

Abstract: The present disclosure is directed to an internal reinforcement assembly for a tower of a wind turbine. The reinforcement assembly includes a plurality of reinforcing rod members spaced circumferentially about the tower. Each of the plurality of reinforcing rod members includes a first end and a second end. The reinforcement assembly also includes an adjustable mounting component configured with each of the second ends of the plurality of reinforcing rod members. As such, the adjustable mounting components are mounted to an interior wall of the tower at a location to be reinforced. Thus, the reinforcing rod members interact with the tower to reinforce the tower at the location to be reinforced.

Abstract: Aspects herein relate to using motor velocity as feedback for controlling the extension or retraction of jacks for control of the angular orientation of a structure, or other means for accomplishing the same. Embodiments include a structure orientation control apparatus comprising one or more jacks configured to support a structure, one or more jack drive mechanisms coupled to at least one of the one or more jacks, the one or more jack drive mechanisms configured to extend or retract the one or more jacks, and a jack controller configured to cause the one or more jack drive mechanisms to extend or retract the one or more jacks based on a jack command. The jack controller may be configured to monitor one or more jack velocities during extension or retraction.

Abstract: A wave generating apparatus mobile application controller and method is provided in which a mobile controller actuates a plurality of wave generating chambers in sequence using a delay between actuation of each chamber to produce a rideable wave in a pool. The mobile application controller allows the user to select the exact type of wave to be produced by the wave generator apparatus by selecting size, shape, and pattern of the wave. The application also allows the user to use a camera to photograph or record herself or someone else, even while riding a wave.

Abstract: A filter apparatus is disclosed herein that includes a filter, such as a cartridge, positioned within a housing. The housing includes a lower-section housing and a cover assembly removably attached to the lower-section housing. The filter apparatus has multiple ports and valves, such as a valve associated with the cover assembly, so as to allow a user to easily switch between various operations on a pool filter, such as between a backwash mode and a filtration mode. The filter apparatus also employs a cage positioned around the cartridge, thereby between the housing and the filter. The cage provides additional support to the cartridge so as to reduce wear and tear of the cartridge. The cover is rotatable about the lower-section housing so as to allow a user to position ports on the cover in any direction.

Abstract: A swimming pool cleaner is driven along a submerged surface by water and debris flowing past a turbine positioned between an inlet and outlet of the cleaner. Retractable elements carried proximate the inlet form a plenum for water to enhance adherence of the pool cleaner to the submerged pool surface being cleaner. A drive train independently drives each of two wheels for maneuvering the pool cleaner in forward and reverse directions along the submerged surface. A hose connector operable with an outlet port is angled toward the forward direction of movement of the pool cleaner such that a suction hose will be placed slightly ahead of the pool cleaner when climbing a side wall surface to provide a weight for keeping the cleaner below the water surface and thus prevent an undesirable sucking of air at the inlet.

Abstract: This application relates to tower segment handling methods and apparatus, and in particular to methods and apparatus for handling segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another. The vertical section of the tower has a longitudinal axis and comprises a plurality of wind turbine tower segments, the tower segments have vertical and horizontal edges and combine to form a complete vertical tower section by joining along their vertical edges. Adjacent vertical tower sections are joined to each other along the horizontal edges of the wind turbine tower segments. The tower segments have support members facilitating storage and transport of the segments. A method of assembling and disassembling a tower section on a roller bed is also disclosed.

Abstract: Embodiments include an outdoor activity structure, comprising: a wall that defines an interior room of the structure, the wall comprises an insulating layer disposed between an inner layer and an outer layer wherein the inner layer is coupled with the insulating layer by a plurality of inner seams and the outer layer is coupled to the insulating layer by a perimeter seam.

Abstract: A bed top having a canopy frame with left and right rear telescopic supports mounted in a bed of a recreational vehicle. The canopy frame may be covered with a canopy or tarp to provide cover for the bed, and the canopy frame and canopy can be rotated 180 degrees forming a shade off the bed of the vehicle, or the canopy frame can be removed from the vehicle and left and right front telescopic supports placed under a left front corner and a right front corner, respectively, and the canopy frame covered with a tarp forming an enclosure that can be used as a hunting blind. A length adjusting means and a width adjusting means may be integrated in the canopy frame to adapt to varying bed sizes. The bed top may also include left and right leg mounts for the left and right rear telescopic supports, respectively.

Abstract: A collapsible canopy has a collapsible frame and a canopy cover supported by the collapsible frame. In some configurations, the frame includes telescopic legs having three or more stages. An automatic lock release is carried by one of the legs and automatically releases a lock between two other of the legs. A relative inner leg can include a cap having a resilient portion that contacts an inner surface of a relative outer leg to increase a lateral rigidity of the leg assembly. At least one of the eave cross members can have an end portion having an abutting extension that contacts an adjacent cross member to limit lateral deflection of the eave. The abutting extension can be positioned between eave cross members that incorporate a bracket for supporting a center support that extends from the eave toward a center or interior of the canopy.

Abstract: A system of for installing fence posts quickly, accurately, and easily for both side mounted fence panels and front mounted fence panels with one or two persons.

Abstract: A lever apparatus having a lever connected to a latch assembly is operable to open the latch when rotated to a second position from a first position under an actuation torque. The apparatus further includes a magnet assembly with first and second magnets operably coupled to the lever apparatus. The magnet assembly is operable to generate a return torque in an opposite direction to that of the actuation torque such that the lever is returned to the first position after the actuation torque is removed from the lever.

Abstract: An electric door lock includes a lock device and an electric control device. The lock device includes a latch bolt, an inner cover seat, and a handle mechanism driving movement of the latch bolt. The inner cover seat has an inner cover having an inner receiving room, and a window that is communicated with the inner receiving room. The electric control device electrically controls the lock device, and includes a middle circuit board fixedly received in the inner receiving room, and an inner circuit board removably received in the inner receiving room, removably connected to the middle circuit board, corresponding to the window in position, and removable from the inner receiving room through the window.