Abstract: A human body sensor has a light emitting portion to emit light to an object, a light reception portion to receive the light reflected from the object, a light reception amount determiner, a distance measurement determiner, a moving object determiner, and a detection determiner. When an amount of the reflected light is a threshold or more under the detection state, the detection determiner determines to switch the determination from the detection state to the non-detection state under a condition that the distance measurement determiner determines that the detection target does not exist, and when an amount of the reflected light is less than the predetermined threshold under the detection state, the detection determiner determines to switch the determination from the detection state to the non-detection state under a condition that the moving object determiner determines that the object does not exist.

Abstract: A solid food waste material collection device is provided. The solid food waste material collection device includes a multi-port valve, an outer vessel in fluid communication with the multi-port valve and an inner vessel contained within the outer vessel and in fluid communication with the outer vessel. The inner vessel is configured to separate solid food waste materials from liquid wastes. The multi-port valve is configured to selectively direct food waste materials to the outer vessel or direct food waste materials to a drain system.

Abstract: A drain cleaning apparatus, includes a handle and a clog-catching member detachably connected the handle. Airplane-like wings project radially from the clog-catching member. The wings provide an angled projection that catches and holds a clump of debris in a drain pipe for unclogging the drain. Clog-catching members or smooth extension members can be connected end to end for different lengths. Different end tools can be removably connected to a clog-catching member or to a smooth extension member to provide multifunctionality. A drain cleaning harpoon that is an integral unit or one that can be assembled and disassembled is also provided. The harpoon can be fitted on one end with a plurality of J hooks, fish hooks, arrowheads or retractable barbs for catching and holding a mass of debris in a drain pipe.

Abstract: A quiet toilet apparatus disclosed. Microphones and circuitry are used to receive and detect one or more virtual point source locations and propagation directions of unwanted toilet noise. Speakers are used to create one or more synthesized wave fronts resulting in cancelation and reduction of unwanted toilet noise. The speakers, microphones and circuitry may be located within a toilet seat of a toilet or at a remote location. A user device or remote device may be connected to the noise reduction toilet apparatus for data recording, collection, reporting, and electronic noise filtering.

Abstract: A flush toilet of present invention includes a bowl that includes a bowl-shaped waste receiving surface, a rim formed above the waste receiving surface, and a pooled water portion formed below the waste receiving surface, a discharge passage that has an inlet connected to the pooled water portion and discharges waste, and a spout portion that spouts flush water onto the bowl and forms a swirling flow on the waste receiving surface. The waste receiving surface of the bowl has a sectorial recess that is formed between a front end portion of the waste receiving surface and a front end portion of the pooled water portion so as to spread from the pooled water portion toward the front end portion of the waste receiving surface.

Abstract: A water saving toilet system having a toilet including a toilet bowl having an upper portion and a lower portion, at least one valve interposed between a first water source and a second water source and the toilet bowl for controlling at least one volume of water flowing from the first water source and/or the second water source to the toilet bowl and a timing mechanism connected to the at least one valve for controlling an amount of time that the valve allows water to flow from the first water source and/or the second water source to the toilet bowl, wherein the at least one valve and the timing mechanism cooperate to adjust the flush volume.

Abstract: A backflow prevention apparatus is provided with a check valve and a float-type backflow prevention valve, these being installed in this order as one proceeds from upstream to downstream. The check valve comprises a valve seat; a valve member that closes the valve at the valve seat due to an upwardly directed restoring force; and a restoring force exerting member that exerts an upwardly directed restoring force on the valve member. The float-type backflow prevention valve comprises an annular valve seat; a float that rises in accompaniment to a rise in a water level of wastewater to close the valve at the annular valve seat; a guide member that guides movement of the float in a vertical direction; and a constraining member that constrains a lowermost position to which the float can move.

Abstract: Device in the form of a combined non-return valve and rat killer for internal fitting in a sewer pipe comprising a valve (2), which can swing between an open and a closed position, the valve (2) being able to serve as a seal against possible back-flow (B) and also as a rat killer. The valve (2) is fitted with a projection (2a) on its inner side near its lower end and when swinging down, the blow-impact of the valve with the rat (12) can kill it. The valve (2) is operated by an actuator (7), preferably in the form of a voice-coil linear motor, which is controlled by sensors in the sewer pipe. Due to a continuous flow (A) through the sewer pipe, the device will remain clean and thus functional.

Abstract: A modular panel and component system from which a variety of wall segments, wall structures, and enclosures may be rapidly assembled, and disassembled. In addition to the wall panels, interior finish panels are adapted to be hung from rails secured laterally to the inside of adjacent wall panels. The system also preferably includes door assemblies and ancillary brackets and hardware to facilitate the assembly of the contemplated wall structures and enclosures.

Abstract: A hanger for connecting a structural member to a structural support including a base sized and shaped for receiving the structural member thereon. First and second side panels extend upward from the base. First and second back panels each extend from a respective one of the side panels. First and second top flanges each extend from a respective one of the back panels. An opening in one of said first and second side panels and said first and second back panels is configured to receive a fastener to attach the hanger to one of the structural member and the structural support. A slot is adjacent the opening. An area between the opening and the slot defines a yieldable portion selected to deform at a load that is less than the shear load capacity of the fastener when received through the opening for connecting the hanger to one of the structural member and the structural support.

Abstract: A water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. According to an aspect, the system comprises open celled foam having a water-based acrylic chemistry infused therein. A layer of an elastomer is disposed on the open celled foam and is tooled to define a profile to facilitate the compression of the expansion joint system when installed between coplanar substrates. The system is delivered to a job site in a pre-compressed state ready for installation into the building joint.

Abstract: A panel is disclosed for use in insulating an edifice that includes a first pane, a second pane in engagement with the first pane so as to define a channel there between configured and dimensioned for drainage and air flow, a clip in engagement with the first and second panes, and an insulator including an upper portion that is positioned within the clip. A system for use in insulating an edifice includes identical panels, wherein the insulator of one panel is positionable within the clip of another panel to connect the panels together. A panel clip for use in insulating an edifice includes a first arm defining an outer surface with a plurality of connectors, a saddle extending from the first arm, and a second arm connected to the saddle opposite the first arm such that the clip is generally H-shaped in configuration.

Abstract: The panel includes a water resistant barrier layer secured atop its outward facing surface. The water resistant barrier layer includes a skid resistant surface. The panels are made of lignocellulosic material. The water resistant and skid resistant surface may include indicia for aligning strips of tape or for aligning fasteners. A method for manufacturing the water resistant building panels is also disclosed and includes the steps of feeding paper onto a forming belt, depositing lignocellulosic material and the binding agent onto the forming belt so as to form a lignocellulosic mat, applying heat and pressure so as to impart the skid resistant surface on the paper, and cutting panels to predetermined sizes.

Abstract: A tubular joist structure. The joist structure includes a tubular top chord; a tubular bottom chord; and, a plurality of diagonals extending between the tubular top chord and the tubular bottom chord. The diagonals may also be tubular. The diagonals are arranged in a zig-zag formation between the tubular top chord and the tubular bottom chord. A doubler plate may be affixed to the bottom surface of the top chord and/or the top surface of the bottom chord such that at least one of the diagonals is affixed to the doubler plate. The joist structure may include at least two joist segments spliced together. A method of constructing a joist assembly includes assembling at least two joist segments each including a top chord, a bottom chord, and a plurality of diagonals extending between the top chord and bottom chord and splicing the joist segments together to form a joist structure.

Abstract: An I-shaped steel with discontinuous top flange reinforced compound concrete beam containing demolished concrete lumps and a construction process thereof. The beam comprises an I-shaped steel having discontinuous top flange, longitudinal bars (7), stirrups (6), waist bars (8), fresh concrete (5), and demolished concrete lumps (4). The I-shaped steel having discontinuous top flange consists of a bottom flange plate (3), a web (2) and a discontinuous top flange plate (1). The discontinuous top flange plate (1) consists of two rectangle steel plates or trapezoid steel plates located at both sides of the I-shaped steel. The two steel plates have a same length that is one third of a length of the I-shaped steel. The trapezoid steel plate has a width of a short side no less than a quarter of a width of the long side. The recycled compound concrete beam saves steel, fully uses the demolished concrete lumps, and is convenient to construct.

Abstract: An integral one-piece nail/disk structure which eliminates the need of having any exposed nails associated with a shingled roof, the nail/disk structure including a body member having a roofing nail incorporated or encapsulated therewithin and having color granules associated with at least a portion of the top surface of the body member. The nail/disk structure may include a sealant covering at least a portion of the bottom surface of the body member. The roofing nail is integrally formed with the body member.

Abstract: A scrim reinforced roofing membrane comprising a coated scrim layer having a first side and a second side and a first polyvinyl chloride layer on the first side of the coated scrim layer. The coated scrim layer contains a scrim fabric which contains a plurality of warp yarns in a first direction and a plurality of weft yarns in a second direction approximately perpendicular to the first direction. The warp yarns cross the weft yarns at crossing points. The scrim fabric has a polyvinyl acetate coating which is located along the length of the warp yarns and the weft yarns and between the warp and weft yarns at the crossing points. The coated scrim is at least partially embedded in the first polyvinyl chloride layer.

Abstract: A roof window comprising an insulation member for sealing a gap between at least part of a roof window frame and at least part of a frame of an aperture in a support structure for receiving the roof window frame. The insulation member having a first out of use configuration and a second in use insulating configuration and an arrangement for activating the insulation member between the out of use configuration and the in use insulating configuration.

Abstract: Embodiments of the present invention comprise pre-fabricated domed skylight panel assemblies for use within steel decking systems. The skylight within the pre-fabricated domed skylight panel assembly is domed. Extending from the width-wise ends of the domed portion are respective skylight end extension portions for overlapping with adjacent steel decking panels or for coupling within an aperture of a decking panel. Further, extending from the length-wise edges of the dome portion are skylight edges configured for connection to decking panel edges (e.g., male and female rail edges or panel edges) that are configured for connection to edges of adjacent decking panels. The pre-fabricated domed skylight panel assemblies provide the desired light into the building, structural support in the steel decking system, ease of shipping of the domed skylight panel assemblies, ease of installation of the domed skylight panel assemblies at the building site, and a water tight seal.

Abstract: Structure heating systems and methods of making and use. One embodiment has a unitary or integral roof edge heating element with a single heating cable mounted in a heating cable channel running laterally through the heating element and a roof edge heating panel extending from the portion of the heating element bearing the heating cable. Another embodiment includes a single heating cable mounted in a heating element surrounded by a heating element cover. Some embodiments can reduce the amount of heat transfer contact with supporting roof or adjacent structure, reducing heat transfer to the supporting roof or other adjacent structure.

Abstract: A compressible foam closure for roof panels includes a core having an elongate body defining a longitudinal axis. The elongate body has at least two opposing sides and defines a thickness. A plurality of slits are formed in the core, into the thickness, extending from the at least two opposing sides toward the longitudinal axis. A thin, flexible, water impermeable skin covers the core. The slits can be formed fully through the core to form slices of the core that are stacked together.

Abstract: A building-mounted awning. The awning includes a support frame, and a covering provided over the support frame to act as shelter from precipitation, or act as a shade from the sun. The support frame is attached to the building at only one location along a width of the support frame by a single bracket attached to the building.

Abstract: An improved handrail splice for use in coupling cylindrical handrail components comprises a generally cylindrical splice having a scalloped outer surface defining a plurality of first and second grooves, with the first grooves being characterized as large grooves circumferentially spaced along the outer surface and a plurality of smaller second grooves disposed between the first grooves. The large grooves are sized to receive and maintain a quantity of adhesive therein to ensure a secure adhesive connection between exterior of the tubular splice and the interior handrail surface. The smaller second grooves receive a smaller quantity of adhesive and further function to anchor the splice relative to the hand rail sections by press-fit engagement. A longitudinal slit bounded by a pair of projecting tabs allows for the temporary reduction of the splice to facilitate inserted installation of the splice within a tubular hand rail component.

Abstract: A fiber enforced sheet for use as a wall or floor covering which comprises of adhered thin bricks bonded to a fiber-reinforced, backing layer. Thin brick is adhered to the fiber enforced sheet. The fiber enforced backing increases strength and rigidity to the thin brick during handling, and installation permits the thin bricks to be adhered to proper specification and spacing to be cut using ordinary tile or thin brick tools.

Abstract: An abrading device for abrading a floor structure comprises a first abrading assembly and a second abrading assembly. The first and second abrading assemblies each have a rotationally driven contact roll provided with a sleeve having a plurality of cutouts formed in a pattern thereon. An abrading belt is trained over the sleeve. A first oscillation assembly is connected to the first abrading assembly and oscillates the contact roll of the first abrading assembly in a first direction via a linear, reciprocating motion. A second oscillation assembly is connected to the second abrading assembly and oscillates the contact roll of the second abrading assembly in a second direction via a linear reciprocating motion. The first and second abrading assemblies consecutively abrade a top surface of the floor structure with the pattern formed by the cutouts on the respective sleeves to form a distressed visible pattern thereon.

Abstract: A floor panel for forming a floor covering comprises a substrate consisting of at least two substrate layers differing in density and, on at least one pair of opposite edges, is provided with coupling parts of the so-called push-lock type. Vertically active locking surfaces, where they cooperate in the coupled condition of two of such floor panels, define a tangent line which is horizontal or does not deviate more than 50 degrees from the horizontal. The locking surfaces are situated closer to the upper side of the first substrate layer than to the lower side of the first substrate layer.

Abstract: A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.

Abstract: A waterside leisure facility is disclosed which comprises an enclosure, covering and surrounding an area of land mass, an enclosed portion of a larger body of water, the land mass having a shore front adjoined to the portion of the body of water, the enclosure further comprising a dividing wall separating the enclosed portion of water from the remaining body of water a transparent roof, joined to the dividing wall and surrounding the area of land mass, to substantially separate air in the enclosure from ambient air outside the enclosure, while letting light through the roof, water treatment means arranged to maintain the water in the enclosure at a controlled temperature, while circulating water from outside the enclosure through the enclosure; and air conditioning means arranged to maintain the ambient air inside the enclosure at a controlled temperature and/or humidity.

Abstract: A Exercise Pool is disclosed herein having a rigid frame modular in design to allow for improved delivery and assembling. As shown the system may be configured with a box like structure providing containment of the flow head and may be configured with a removable walk deck having an air gap built in. As disclosed the treadmill swimming pool system as its general configuration is safer for users as it inhibits and/or eliminates hair and body entrapment. As disclosed it has a balanced flow which better replicates or reproduces actual swimming conditions for an enhanced user experience. The propulsion system may be controlled with a variable frequency drive (VFD) to allow for improved swimming conditions and control of same.

Abstract: The invention relates to an adjustable swimming pool floor system (40). In addition, the invention relates to a swimming pool (5) comprising such an adjustable pool floor system. Furthermore, the invention relates to a method for installing the hydraulic system (1) in a swimming pool. The invention also relates to a hydraulic system for use in an adjustable swimming pool floor system.

Abstract: A marker is provided for a swimming lane extending a length of a pool. The pool includes sidewalls connecting end walls for defining a swimming area holding water. The marker comprises a line and means for suspending the line over the water in the swimming area. The line provides a visual indication of the position of the swimming lane in the swimming area.

Abstract: A wave-dissipating float for a swimming pool lane rope includes a cylindrical body composed of a first casing and a second casing. The cylindrical body is provided with a fixing hole and at least one perforation. For installation, it is not necessary to disassemble one end of the swimming pool lane rope. The rope of the lane rope is placed in a first semicircular fixing hole of the first casing and a second semicircular fixing hole of the second casing, and then the first casing and the second casing are coupled to each other so that the rope of the lane rope is surrounded by the cylindrical body to complete the assembly.

Abstract: The invention is directed to a method of insulating tanks having a capacity between 200 m3 and 20,000 m3 used for storage of oil and oil products. In the method, foundation elements, including tank bottom heat insulation, are prepared. The tank is mounted on the prepared foundation, then insulation of the tank walls and roof is installed. Supporting relieving skirts are mounted on the tank walls and roof, forming tiers. The tiers are filled with foam glass blocks having expansion joints. A top coat of metal sheets is mounted on the outer surface of the blocks. Foam glass blocks in the lower tier are made to be removable to provide access to a “wall-bottom” corner weld joint, and the blocks of the remaining tiers are fixed to the tank surface and interconnected with an adhesive material.

Abstract: A plurality of flood prevention units are vertically stacked one over another inside a frame mounted over ventilation opening on a wall. Each unit includes a buoyant gate pivotally mounted by one or more pivotation members about a horizontal axis transverse to sidewalls of the frame for pivotation of the gate on rise of water buoyantly lifting the gate rotationally upwardly between said sidewalls for engagement with an upper deck horizontally connecting the sidewalls. A limiter limits the extent of self-actuation rotation of the gate. The gates are open during non-flooding conditions, allowing ventilation through the building opening, and sequentially close from lowest to highest on rise of water activating each gate in order, allowing ventilation to continue until the highest gate is closed.

Abstract: Magnetic straking can optionally be temporarily attached to a ferromagnetic structure or other structure capable of magnetic attachment thereto, allowing observation or testing of the structure's performance before optional permanent attaching of such straking to the structure, such as by welding or the like.

Abstract: A grave bridge has a first horizontal frame member and a second horizontal frame member, each horizontal frame member telescopically adjustable; at least one plank interposed between the first and second horizontal frame members, the at least one plank secured to each frame member, and wherein the at least one plank has an extension frame longitudinally extendable from underneath a platform of the at least one plank; and a plurality of jacks for elevating the first and second horizontal frame members, the jacks placed at opposing ends of each horizontal frame member.

Abstract: A collapsible canopy structure includes one or more eaves, one or more fixed eave mounts, one or more sliding eave mounts and one or more vertical poles. Each of the vertical poles has a top end and a bottom end. Each of the vertical poles is connected by at least one of the one or more eaves. At least one of the fixed eave mounts is coupled to at least one of the eaves and attached proximate to the top end of at least one of the vertical poles. At least one of the sliding eave mounts is coupled to at least one of the eaves and slidingly coupled to one of the vertical poles between its top end and its bottom end. One or more detent elements include a round or spherical detent surface that engages an opening of the one or more vertical poles.

Abstract: An electric strike assembly includes a housing formed with a recessed portion, a keeper pivotally arranged in the recessed portion of the housing, the keeper having an abutment, an actuator assembly having an actuator and an actuator paddle, and a blocking element rotatably mounted in the recessed portion of the housing, wherein cooperation of the actuator paddle with the blocking element is controlled by rotation of the actuator and determines a locking condition of the keeper based on a rotational position of the blocking element with respect to the abutment. In accordance with other aspects of the present disclosure, a locking system includes a door assembly having a latch, a door frame for mounting the door assembly, and an electric strike assembly mounted in the door frame. A method of controlling access through a door includes providing an electric strike assembly in accordance with aspects of the present disclosure.

Abstract: An electric strike assembly includes a housing formed with a recessed portion therein, a keeper assembly pivotably mounted in the recessed portion of the housing, a lock leg pivotably mounted in the recessed portion of the housing and configured to rotate independently of the rotation of the keeper assembly, a block assembly having a blocking element configured to engage and disengage the keeper assembly, and to control engagement and disengagement of the blocking element with the keeper assembly. A method of capturing and releasing a latch bolt mounted in a door includes mounting an electric strike assembly in an associated door jamb and controlling an actuator to rotate an actuator paddle to engage a blocking element such that the blocking element is engaged or disengaged from a keeper assembly.

Abstract: A latching assembly for a gate comprising: a latch operative to adopt a latched condition, the latch comprising one or more members coupled together, each latch member extending along a longitudinal axis; and a lock comprising a lock portion adjustable from a retracted to a projected configuration to bring the lock portion into engagement with the or at least one of the latch members in the projected configuration so as to lock the latch in its latched condition.

Abstract: A locking device for restricting access to a hatch of a pressure vessel, and, more specifically, a locking device that is responsive to the internal pressure in the pressure vessel so as to minimize the ability of one to open the hatch while the vessel is still pressurized. In some embodiments, the locking device comprises first and second portions of the locking device configurable between an open and a closed configuration and a pressure-responsive locking member in fluid communication with an outlet port of the pressure vessel and arranged to automatically retain the first and second portions in the closed configuration when the pressure inside of the pressure vessel is above a predetermined threshold, wherein in the closed configuration the first and second portions restrict manipulation of the hatch and/or a locking mechanism of the hatch.

Abstract: A force adjustment mechanism configured for use with an exit device including a pushbar having an extended position and a retracted position. With the pushbar in the extended position, the pushbar resists movement toward the retracted position with a net resistive force. The force adjustment mechanism is operable to adjust the net resistive force.

Abstract: The object of the present invention is a motor vehicle door lock, comprising a locking mechanism and an electrical drive for electrically opening the locking mechanism. According to the invention, a complementary drive is provided in addition to the electrical drive for electrically opening the locking mechanism. With the aid of the electrical drive, the additional drive releases, for the purpose of electrically opening the locking mechanism, a mechanical safety mechanism of the respective electrical drive, which is formed by a blocking element.

Abstract: The invention relates a door handle unit (10) for actuating a lock (101) of a movable part (100) of a motor vehicle, particularly a door, a flap or the like, with a door handle (11), which is movably mounted at the support element (12) for mechanically opening the movable part (100) by a user, wherein the door handle (11) comprises at least a rest position and a operative position, a mechanical coupling element (13), which is movably mounted at the support element (12) and by which a movement of the door handle (11) is transmitted to the lock (101) from the rest position to the operating position, wherein the door handle (11) and the coupling element (13) are mechanically cooperating and form a movable actuating mechanism (15), and at least a locking unit (16), which in a normal case enables a movement of the actuating mechanism (15) for actuating the lock (101) and only in a case of locking blocks a movement of the actuating mechanism (15) for actuating the lock (101).

Abstract: An outer handle device for a vehicle door is provided in which an actuator can drive the outer handle to a pop-up position where the operating portion of the outer handle projects outward from the outer panel, wherein in a state in which the outer handle is in a pop-up position, a drive lever of the actuator is held at an operated position by holding means, a release lever is pivoted by a handle lever pivoting with the outer handle when the outer handle pivots from the pop-up position to the full stroke position, the holding of the drive lever by the holding means is released by the pivoting of the release lever, and the drive lever is forcibly returned to the initial position. This enables an outer handle to be returned to a housed position even if there is a malfunction of an actuator-side electric drive source.

Abstract: A vehicle door includes a door structure having an interior space and a ramp disposed within the interior space. The vehicle door further includes a latch and a handle that is pivotably connected to the door structure. The handle includes a pair of inwardly and forwardly extending hooks. The vehicle door also includes a cable or other linkage connected to the latch. The cable has a fitting that is pushed along the ramp by the hooks upon pivoting of the handle to thereby shift the cable and unlatch the latch.

Abstract: Provided is a roller, and more particularly, to a rotary shaft of the upper part of a rolling wheel, having an inclined surface formed along the circumference of an outer diametral surface thereof, is inserted into at least one coupling groove formed on a transfer bracket, a thrust member is provided at the upper part of the rotary shaft so as to allow a thrust load to be concentrated on the upper end of the rotary shaft or the thrust member, and a radial member is provided at the inner surface of the coupling groove and the rotary shaft positioned at the lower part of the thrust member, thereby supporting a radial load.

Abstract: Described is a hinge for doors or windows comprising: a first fixed body (5) associated with a fixed frame (1) and having a first axis (X1) of fixed articulation and a slot (6) made parallel to the axis (XC) of longitudinal extension of the first fixed body (5); a second movable body (7) connected to a movable sash (2); a first lever (8) having a first end articulated to the first fixed body (5) about the first axis (X1) of fixed articulation, a second end articulated to the second movable body (7), defining a second axis (X2) of articulation, and an intermediate zone; a second lever (9) having a first end articulated inside the slot (6) of the first fixed body (5) to define a third slidable axis (X3) of articulation, a second end articulated to the second movable body (7) definng a fourth axis (X4) of articulation and an intermediate zone; the first (8) and the second (9) levers are articulated to each other in the corresponding intermediate zone to define a fifth axis (X5) of shared articulation; means (10,

Abstract: An operator for a window comprising a base and a cover, the base being attached to a window sash with an aperture extending through the base, an arm having first and second ends with a first end secured to the base, the first end of the arm having an aperture therein overlying the aperture in the base and an upper securement member extending at least partially through the aperture in the first end of the arm, the upper securement member having a threaded recess therein, a lower securement member screwthreadedly engaged with the upper securement member and extending through the base in an abutting relationship thereto, the cover engaging with the upper securement member to prevent rotation thereof when the lower securement member is screwthreadedly engaged with the upper securement member.

Abstract: An operator for a window comprising a base designed to be secured to a window sash, an arm having first and second ends with the first end being secured to the base and a first end of the arm having a worm wheel formed thereon, a shaft having a worm operatively connected to the worm wheel, a handle secured to the shaft, a locking mechanism comprising a multipoint tie bar, and an actuator connected to a rack and pinion gear arrangement to move the multipoint tie bar between open and locked positions. The arrangement provides for a compact efficient design which includes a locking mechanism and an opening mechanism located at the same point.