Abstract: A ceiling fan is composed of a fan unit fastened at one end thereof onto a ceiling, a lighting fixture fastened with the fan unit, and a power control device for controlling the power supply to the fan unit and the lighting fixture. The lighting fixture is composed of an auxiliary lamp seat and a main lamp housing. The power control device is fastened at one end thereof with the output shaft of a motor of the fan unit via the auxiliary lamp seat such that the power control device is located inside the main lamp housing which is fastened under the auxiliary lamp seat by a fastening bolt that is engaged with another end of the power control device. The auxiliary lamp seat has an open top, a receiving space and a bottom. The auxiliary lamp seat is fastened between the motor of the fan unit and the power control device such that the motor is located in the receiving space of the auxiliary lamp seat.

Abstract: A wind powered lamp for generating light when moving air such as wind or a breeze passes over it. The lamp includes an elongate shaft having a first end mountable to a support structure. A generator for generating electrical energy is mounted to a second end of the shaft. The generator is rotatable about the longitudinal axis of the shaft to generate electrical power. A housing substantially encloses the generator. The housing has a plurality of rotor blades extending in a direction radially outwards from the longitudinal axis of the shaft. The housing is coupled to the generator such that rotation of the housing rotates the generator about the longitudinal axis of the shaft to generate electrical energy. A plurality of light sources are also substantially enclosed in the housing and are electrically connected to the generator.

Abstract: The present invention is an air circulating fan which creates optical displays. The fan comprises a housing in a generally circular configuration with a central axis. Also provided is a propeller formed of a plurality of blades mounted for rotational movement within the housing about an axis of rotation coincident with the central axis of the housing, the blades have exposed surfaces with fluorescent paint thereon. A light source is located within the housing in operative proximity to the blades disseminating light from the blades. Further included is a drive mechanism to rotate the blades and a power source to illuminate the light source.

Abstract: An ceiling fan applique and method for adorning the blades of a ceiling fan. An applique constructed of a thin, flexible material includes printed matter disposed on a front surface of the applique. Pressure sensitive adhesive is mounted to the rear surface of the applique. The applique has a predetermined shape substantially corresponding to the shape of the ceiling fan blade. A release liner is affixed to the rear surface of the applique to prevent the applique from becoming inadvertently affixed or damaged prior to intended use.

Abstract: An electric fan having induce illumination and shock device is composed of a fan provided with a transparent housing at the top end of the rod. The inner net with a fixed pieces around the edge thereon, is fastened with the outer net of the fan. The arrangement allows for the fan to blow the air, to illuminate the darkness at night, and to shock the mosquitoes without any obstacles.

Abstract: A ceiling fan consists of a revolving motor having a plurality of fan blade mounts, a control device located under the revolving motor, a mounting piece located between the motor and the control device and provided with a plurality of first locating portions, a seat provided with a receiving space and a receiving port which is complementary to the mounting piece and provided with a plurality of second locating portions. The revolving motor is received in the receiving space. The seat is provided with a main lampshade and a plurality of auxiliary lamp seats.

Abstract: In a fan including a hub mounted for rotation and a plurality of fan blades, an attachment assembly for detachably engaging at least one of the plurality of fan blades with the hub, the attachment assembly comprising a stop carried adjacent an end of a selected one of the plurality of fan blades, a socket carried by the hub for receiving the end of the selected one of the plurality of fan blades, and an abutment mounted for movement between a first position to permit the end of the selected one of the plurality of fan blades to admit into the socket, and a normal second position against the stop.

Abstract: A fan blade having a flow bumper curved backwards at a front side thereof, a mouth on the middle for gathering currents of air, a flow guide obliquely forwardly extending from the flow bumper at a top side above the mouth, and a rack and a mounting board vertically disposed at a rear side thereof for connection to a hub of a fan motor. The invention also provides a ceiling fan which has air guide means for guiding outside fresh air in for circulation upon operation of the ceiling fan.

Abstract: A ceiling fan includes a motor casing with an engaging ring connected to the bottom of the motor casing, the engaging ring having a plurality of tapered recesses defined in the bottom thereof and each of the recesses having an open end in the inner periphery of the ring and a closed end on the outside of the ring. Each of the recesses has two grooves defined in the two sides thereof. Each of the fan blade brackets has two flanges to be received in the grooves. The first end of each of the end members is stopped by the closed end of the recess. A plurality of balls movably received in the ring and the balls respectively extend into the respective recesses so as to contact the second end of the end members in the recesses.

Abstract: An autonomous helicopter blade end lighting device including a light source being connectable to a helicopter blade end, and a power source being connectable to the helicopter blade end for providing the light source with power for operation.

Abstract: A ceiling fan assembly and method for assembling same in which a fan blade is placed over an arm having a post that extends in an opening in the blade. A fastener is attached to the post to secure the blade to the arm, and a flange on the arm is inserted in a slot in the rotor of the fan motor to retain the arm, and therefore, the blade, relative to the rotor.

Abstract: Ceiling fan blades for low speed fan operation. The blades have a positive twist at the root motor portion of the blade and a slightly twisted rounded tip. The chord of the blades taper down from the root to the rounded tip, and have a tapered airfoil from the aft forward aft edge to the trailing edge. The airfoil has a combination of a rounded leading edge with sharp trailing edge, and a square leading edge and rounded trailing edge. The blades can be twenty inches in length and twenty-six inches in length, and be used in ceiling fans having two, three, four or more blades in a ceiling mount. The ceiling fan blades are optimized to operate in ceiling fans running at low speed ranges of approximately 50 to approximately 200 revolutions per minute(rpm) with an enhanced axial airflow which provide substantial energy savings and increased air flow over conventional flat planar ceiling fan blades.

Abstract: A hanging bracket is initially secured to an electric outlet box. The hanging bracket includes on one of its ends, two canopy hooks with a screw hole located therebetween. The other end of the hanging bracket includes a single screw hole. A canopy includes two spaced slots shaped and located to receive the two canopy hooks of the hanging bracket. With the canopy hooks extending through the corresponding slots in the canopy, a fan assembly is pivotally mounted on the hanging bracket. It is then possible to connect the lead wires of the outlet box and the wires of the fan assembly. All that is then required is to pivot the canopy with the associated fan assembly about the canopy hooks into a vertical orientation. No additional lifting of the fan assembly independent of the fan assembly being supported by the hanging bracket is required. A single screw is inserted through the canopy into the screw hole in the hanging bracket at the end of the hanging bracket opposite to the end which includes the canopy hooks.

Abstract: A ceiling fan having illumination sources that are mounted to the fan blades is disclosed. Each fan blade has a lighting strip with a plurality of light sources along its length provided along the midline of each blade. Two sets of concentric races having rolling bodies therebetween provide the conductive connection between the rotating illumination sources and the stationary electrical power supply wires. Each set of concentric races includes an inner stationary race and an outer rotating race. The lights attached to the fan blades are connected in parallel to the outer rotating races. Separate switches control the fan and lighting functions.

Abstract: The present invention is directed to the general field of ceiling fans and more particularly to the field of ceiling fans with easy install features. Such a fan includes an electrical quick connect device and an articulating fan blade assembly. The quick connect device includes a plug/receptacle configuration enabling the fan to easily connect to an electricity supply while providing the gravitational and rotational support required by the fan. The fan blade assembly includes a drive hub having a series of slots to receive the neck of a fan blade. The fan blade neck is secured in the slot in a fashion that allows for articulation of the blade relative to the fan or removal of the fan blade from the fan.

Abstract: A free-standing overhead fan apparatus includes a stand and a fan mounted on the stand. The stand includes a base positioned on ground level and an elongated member extending upwardly from the base. The fan is mounted at the upper end of the elongated member, preferably about seven feet above ground level. The fan includes a housing containing an electric motor and a rotating shaft extending from the motor. The fan also includes fan blades radially extending from the motor shaft. The fan is mounted on the stand such that the motor shaft and fan blades are rotatable about a vertical axis to emulate a ceiling fan.

Abstract: An automatic cleaning system for a ceiling fan having a plurality of fan blades extending outwardly from a central motor driven hub comprising a plurality of cleaning units, each in a cleaning engagement with a top surface and a bottom surface of a different one of the plurality of fan blades; and a plurality of recoil units, each connected to the different one of the plurality of fan blades adjacent the central motor driven hub and an associated one of the plurality of cleaning units to enable each of the plurality of cleaning units to travel from a point adjacent the central motor driven hub to an outward end of the different one of the plurality of fan blades due to the centrifugal force when the ceiling fan is running and to retract each of the plurality of cleaning units to the point from the outward end of the different one of the plurality of fan blades when the ceiling fan is not running.

Abstract: A ceiling fan includes an outer housing and a cap secured on top of the outer housing. A motor is disposed in the outer housing for driving a number of fan blades. An inner housing is rotatably disposed in the outer housing and is coupled to the motor by a gear transmission mechanism for allowing the inner housing to be rotated by the motor. An additional motor may be secured on the outer housing and coupled to the inner housing for rotating the inner housing. One or more light bulbs may be disposed in the inner housing for lighting the pattern on the inner housing.

Abstract: A ceiling fan with a light assembly that illuminates a room without producing a strobe effect while the blades are rotating. The ceiling fan includes a motor assembly for producing rotational motion. The motor is contained in a housing with an opening in a lower portion of the housing. A plurality of blades, rotating within a plane of rotation and extending radially outward from beneath the housing are secured to the motor opening in the lower portion of the housing. A light source is coupled to the housing along a circumference. A cover is also coupled to the housing, wherein the cover partially surrounds the light source to prevent downward illumination from the light source toward the plurality of blades.

Abstract: A fan blade cover and strobe light for illuminating the same adapted for use with fan blades of ceiling fans and the like. The fan blade cover is a substantially rigid cover panel with dimensions corresponding to at least one major surface of a fan blade, and includes at least one member adapted for securing the cover panel to the fan blade surface in such a way as to cover the fan blade surface. The fan blade cover has at least one surface adapted for having designs, signage and other indicia thereon for illumination by a strobe light or lights. The cover panel can be constructed of materials such as, but not limited to, cardboard, poster board, fiber board, and other paper materials; solid and foamed plastics; and vinyl sheet material.

Abstract: An apparatus for detachable connection of a ceiling fan motor housing to a ceiling mounting assembly. The ceiling fan downrod provides a standardized elongated tube that is connectable to a multitude of ceiling fan housings and assemblies, and provides a universal ground wire connection through a plurality of holes for electrical grounding of the apparatus. The downrod is an elongated tube with a hollow center, having a plurality of pairs of holes near each end of the downrod. Each open end of the downrod has a plurality of threads on the exterior surface of each end, the threads providing one connecting method to attach one end of the downrod to a ceiling mounting assembly, and the second end of the downrod to a motor housing of the ceiling fan. The downrod provides numerous options for connecting the downrod to ceiling fan assemblies, and provides versatility for attachment of electrical ground wires through the plurality of holes in the downrod.

Abstract: A patio table and fan combination. The device uses a fan mounted on a pole that passes through the center of the patio table. The pole also supports an umbrella that can be used for shade when the table is located outside. The fan motor is mounted co-axially with the fan. The device includes pole mounted lights and a mist device. The patio table fan combination is powered by conventional household electrical outlet or by solar panels mounted on the patio umbrella. The central pole for the device comes in three pieces to facilitate shipping and assembly.

Abstract: A removable and replaceable cover for a ceiling fan blade is disclosed. The cover includes a first material which covers the bottom surface of the fan blade and wraps around the outer edges of the fan blade and a second elastic material which joins the ends of the first material and is positioned adjacent the top surface of the fan blade. One or more straps are attached to the open end of the cover and wrap around the arm which attaches the blade to the fan motor. A hook-and-loop fastener is provided on the end of the strap and a mating attachment is provided on the first material.

Abstract: A ceiling fan blade for securing to a ceiling fan motor includes a flat root portion and a fan member each having a flange extended from one end and perpendicular to and solidly secured to the root portion and the fan member. The root portion and the fan member are inclined relative to each other for allowing the fan member to be directed toward a relative wind to the ceiling fan blade. The flanges of the fan member and of the root portion of the ceiling fan blade each includes a triangular shape and each includes a longitudinal axis coincident with each other for greatly increasing the strength of the ceiling fan blade.

Abstract: Easy to attach and detach blades for overhead ceiling fans. A first version has a ceiling fan blade with keyhole slots that fit over flat topped fasteners on a mounting arm. Pulling the blade away from the arm locks the slots to the fasteners. A second version is similar to the first and has a decorative bottom cover having snappable tapered protrusions which attach through the keyholes and into mateable through-holes in the mounting arm connection. The third version has a protruding end portion of the blade that fits into a slot in the mounting arm where spring loaded pistons press into grooves in the protrusion end portion of the blade. Latching handles allow users to manually move the pistons. A fourth version has a slot in the blade which fits about a mateable housing in the mounting arm where opposing spring loaded pistons press into interior wall grooves in the slot of the blade.

Abstract: A pull cord deflector is comprised of a plate, having a channel, that is positioned between a ceiling fan housing and a switch locking nut. An extension arm is hingedly attached to the plate. The notched end of the extension arm is dimensioned to terminate beyond the periphery of a light globe of the ceiling fan. One or more optional springs extend between the plate and the extension arm.

Abstract: A canopy screw cover for aesthetically covering the mounting screw heads of a ceiling fan canopy, comprising a mounting screw having a head, an annular ring, and a recess formed in the annular ring in which is positioned the head of the mounting screw when the annular ring is positioned about the canopy.

Abstract: A suspension assembly includes an upper suspension subassembly with an upper end secured to a ceiling, a connecting device including an upper end having a spherical surface engagement relationship with a lower end of the upper suspension subassembly, and a lower suspension subassembly including an upper end having a spherical surface engagement relationship with a lower end of the connecting device and a lower end securely attached to a motor for driving a ceiling fan.

Abstract: The connecting device includes rotor and blade mounting segments each secured on a rotor and a fan blade at a respective connecting end thereof. A socket end of the rotor mounting segment extends in a radial direction relative to the rotor, and has an insert wall with an insert opening, an insert slot confined by upper and lower inner walls and extending in the radial direction from the insert opening, and an upper outer wall opposite to the upper inner wall. The upper outer wall has a recess communicated with the insert slot to form a retaining wall. A plug end of the blade mounting segment has a bottom wall to be fitted into the insert slot from the insert opening. A resilient retainer has a proximate end secured on the bottom wall, and a distal end with an engaging spring protrusion to provide a biasing force away from the bottom wall.

Abstract: A cover for an aperture in a ceiling having a shell and a back panel. The shell includes: a wall; an interior portion; and an exterior portion. The interior portion has a tubular hub extending from the wall; fins extending from the wall and from the hub; and blocks extending from the wall. The hub has a central aperture and a distal end with a flange. The exterior portion has a recess cooperating with the hub on the interior portion. The back panel is nestable within the interior portion of the shell. The back panel has an aperture cooperating with the hub on the shell when the back panel nests within the interior portion of the shell. In such an arrangement, the back panel sits on upper surfaces of the fins and blocks. In order to attach to the ceiling, either the recess on the interior portion of the shell or the recess on the exterior portion of the shell is positioned between the mounting plate and the junction box.

Abstract: A ceiling fan includes an outer housing and a cap secured on top of the outer housing. A shaft is secured to the cap and a motor is disposed in the outer housing and secured to the shaft for driving a number of fan blades. An inner housing is rotatably disposed in the outer housing and includes a center sleeve rotatably engaged on the shaft for allowing the inner housing to be rotated about the shaft and includes a number of blade members. The fan blades may generate a circulating wind through the inner housing in order to actuate the blade members.

Abstract: A ceiling fan housing includes a cylindrical member having a bottom portion and having a cover engaged on the upper portion. A frame includes a number of panels each having an upper ear extended radially inward for engaging with the cover and each having a bottom extension extended radially inward for engaging with the bottom portion of the cylindrical member and for allowing the panels to secure the cylindrical member and the cover together. The frame includes a bottom ring, the extensions of the panels are extended radially outward from the ring.

Abstract: A one-piece injection molded arm and blade unit for a ceiling fan, or the like, in which a blade forms an extension of an arm. At least one web formed on the arm, and at least one other web is formed on the arm and extends at an angle to the first web. The webs serve to add strength to the unit to counteract the various stresses placed on the unit during operation.

Abstract: A ceiling fan has a downrod assembly secured at an upper end to a ceiling bracket assembly and secured at a lower end to the motor shaft of a motor. An upper canopy is disposed at an upper end of the downrod assembly and a lower canopy is disposed at the lower end of the downrod assembly. A fan housing/blade mounting assembly secures fan blades to a motor body that rotates about the motor shaft, and a lower platter assembly is secured to a lower end of the motor shaft.

Abstract: Fan blade covers which are particularly useful for covering ceiling fan blades. The covers are easily removed and cleaned providing a safe means for cleaning ceiling fan blades. The covers are provided in numerous colors and decorative patterns allowing the selection of covers which match a room decor. The covers also comprise a balancing arrangement for the fan which includes a pocket positioned on the upper surface of the cover and a dispensing arrangement for dispensing and distributing deodorant throughout a room which includes a vented pocket for receiving a deodorant canister while the vented pocket and canister includes a visual deodorant depletion indicator.

Abstract: A ceiling fan housing includes a cylindrical member having a number of openings and includes a bottom portion having a number of punctures. A number of panels are secured to the cylindrical member and the bottom portion and engaged in the openings 8 the cylindrical member and in the of the bottom portion punctures. The panels each include a plate engaged in the openings of the cylindrical member or the bottom portion flush with its associated outer peripheral surface of the ceiling fan housing. The panels include beautiful colors and are directly secured to the ceiling fan housing for reducing the cost and for simplifying and accelerating the manufacturing processes.

Abstract: A ceiling fan housing includes a cylindrical member of transparent material and a cover engaged on top of the cylindrical member. A frame is received in the cylindrical member and disposed between the bottom plate and the cover and includes one or more panels. A number of fasteners may secure the cylindrical member and the cover and the frame together. The frame includes a ring. The panels are extended radially outward from the ring for allowing the frame to be easily assembled to the cylindrical member and the cover by the fasteners.

Abstract: A ceiling fan blade attachment system for attaching a ceiling fan blade ring to a rotatable electric drive motor mounting surface. The blade ring and motor mounting surface include cooperating elements that enable the blade ring to be suspended adjacent to the motor mounting surface prior to fixed attachment of the blade ring to the motor mounting surface. The motor mounting surface includes a plurality of downwardly extending suspension posts. The blade ring includes a plate or bracket including keyhole shaped openings to receive the suspension posts and to enable rotation of the mounting ring so as to lock or suspend the blade mounting ring below the motor mounting surface in a provisional or temporary manner until the blade ring can be fixedly attached to the mounting surface.

Abstract: An interchangeable fan blade system for a ceiling fan, made up of a set of adapters having a plurality of elongated attachment apertures that allow the adapter to be threadably fitted to virtually any type of fan support arm, and a complimentary set of interchangeable fan blades. The adapters include one of a variety of connectors for attaching one end of the fan blades to the support arm. The one end of the fan blade is configured and adapted, or otherwise provided with mating connector elements adapted to engage the connectors of the adapters, thereby allowing the fan blades to be removably attached to the adapters. A second embodiment of the interchangeable fan blade system is a set of interchangeable fan blades having a plurality of elongated attachment apertures which allow the fan blades to be secured to virtually any type of fan arm, by threading a plurality of shoulder cap screws and a plurality of male-female connectors though the plurality of attachment apertures.

Abstract: An air freshener for attachment to a ceiling fan includes a storage container, a thick, porous fragrance cake impregnated with a fragrance secured inside the storage container, and "hook and loop" fasteners for attaching the storage container to the cover or a light fixture of the ceiling fan. The storage container preferably includes a bottom, a side wall and a lid. Together, the bottom and the side wall define a cavity in which the fragrance cake is secured. The lid is movable relative to the side wall so that the lid may be moved to expose the fragrance cake. The lid, the side wall or both have a plurality of apertures therethrough to permit ambient air to circulate around the fragrance cake to distribute the fragrance to the surrounding area as the air enters and exits the apertures and is further circulated by the ceiling fan.

Abstract: A ceiling fan housing includes a cylindrical member of transparent material and a decorating material layer applied onto the inner peripheral portion of the cylindrical member for decorating purposes. A number of panels are received in the cylindrical member and a number of fastening members engage through the panels and the bottom plate for securing the bottom plate and the cylindrical member and the panels together. The decorating material layer is formed a sand blasting process and includes a number of blank portions for engaging the panels.

Abstract: An assembling device for the blade of the hanging fan which comprises a ring body arranged on the bottom of the motor unit and having a plurality of dovetail grooves on rim thereof, and blade base has corresponding dovetail shape such that the blade base can be inserted into the dovetail groove and the blades are fixed.

Abstract: A fan speed indicator is provided including a conventional fan with a pull cord adapted to change a speed at which the fan is running upon being pulled. Further provided is mechanical mechanism for mechanically indicating the speed at which the fan is currently running.

Abstract: A modular ceiling fan assembly and system is disclosed in which the functioning components are standardized, including standardized connections for their assembly, and multiple components are provided with a plurality of alternate parts for assembly into a variety of uniquely differentiating configurations, styles and appearance without substantially increasing the cost to the manufacturer. The motor platform, including the motor, shafts, switch housing and electrical components and wiring, are standardized into a single configuration, and the holes for mounting the fan blades on the lower surface and/or upper surface of the rotor have a standardized size and spacing. A modular motor housing is formed from multiple horizontal sections, preferably two or three, with a standardized height to accommodate the common single motor platform. The various sections of the modular motor housing are selected in order to produce a variety of uniquely different appearances.

Abstract: Ceiling fan motors which include forced air ventilation and heat dissipation systems to provide significantly reduced motor operating temperatures, improved motor component tolerances, lower manufacturing costs, and ease of assembly. The ceiling fan motor is of the inside-out type and includes an impeller mechanism associated with at least one of the upper or lower portions of the motor casing for drawing substantial volumes of air into the casing, across the stator, and through the opposite portion of the motor casing. The motor casing components may be formed from cast aluminum. Alternatively, the entire casing and rotor is of unitary integrally cast aluminum. One of the end faces of the motor casing may include integrally cast blade ramps.

Abstract: A device for connecting brackets and a motor of a ceiling fan includes a ring element fixedly connected to an underside of the motor and having a plurality of protrusions extending from an underside of the ring element. Each of the protrusions has an inclined surface defined in a free end thereof and each of the inclined surfaces has a plurality of first threaded holes defined therein. At least one bracket has a first end with an enlarged plate to connect to a blade and a second end having an engaging element which has at least two first holes defined therethrough so as to be fixedly connected to one of the inclined surface by extending bolts through the first holes and engaging with the first threaded holes of the protrusion.

Abstract: A fan assembly includes a circular first array of first fan blades; a first primary ring member supportively connecting inner extremities of the first blades about a fan axis, respective end extremities of at least a majority of the first blades defining inside and outside diameters of the array, the first blades being oriented for producing a primary axial fluid flow between the inside and outside diameters in response to rotation of the first ring member, the first ring member extending between the inside and outside diameters. A second primary ring member connects outer extremities of the first blades, the first blades in combination with the first ring member defining a generally circular opening about the fan axis.

Abstract: A suspension assembly includes an upper supporting member securely attached to a ceiling, a suspension rod, and a connecting member. The upper supporting member includes a bowl-like section defined in a lower portion thereof. The bowl-like section includes a first through hole defined in a bottom thereof, and a bowl-like upper suspension member is securely retained in the bowl-like section. A suspension rod includes an upper end which extends through the first through hole and securely attached to the upper suspension member. A suspension seat is securely mounted to the suspension rod and includes an inverted bowl-like seat which has a second through hole extending along a longitudinal axis thereof. An inverted bowl-like lower suspension member is securely received in the bowl-like seat, and the lower end of the suspension rod extends through the second through hole and securely attached to the lower suspension member.

Abstract: An apparatus for generating negative ions includes two casings which are coupled each other and respectively have an outer thread on one end thereof, a lid which is fastened to the coupled casings, an electrode rod disposed within the coupled casings, an electrode plate disposed within the coupled casings, a circuit board which is disposed within the combined casings and connected to the electrode rod and the electrode plate and having at least one high voltage discharging plate, a high voltage generator which is connected to the circuit board and the high voltage discharging plate, and a plurality of ventilation slots which are respectively defined in the casings and the lid, such that the apparatus can be easily assembled, installed and utilized as an independent unit.

Abstract: An adjustable ceiling fan support assembly for use in recreational vehicles, motor homes, camper shells and the like to removably suspend a ceiling fan from opposing vertical supports. A spring-biased adjustable fan support is interposed between two vertical supports, such as the interior walls of a recreational vehicle or retractable awning frames, and the fan is suspended from the support. The support includes a pair of generally parallel, elongated support arms having a fixed component and a reciprocable component. The fixed component depends from diametrically opposed edges of a plate. The reciprocable component has an engaging end portion, slidably engaged with the fixed component, and a wall engaging end.