Abstract: A diagnosis system and method for detecting various Volatile Organic Compounds (VOCs) in a biological sample by utilizing a smart platform configured to harness animal bio-sensors trained to detect various VOC's which may indicate various pathologies, and by conducting various data collection practices and analysis methods in order to produce output results. The diagnosis system and method is configured to analyze behavioral parameters concerning the animal bio-sensor and provide a non-invasive and safe diagnostic solution that does not involve exposing a patient to radiation or any other potentially harmful procedure.

Abstract: Snow sensors, mechanisms, and methods for snow sensor reading, assemblies for use with snow sensors, such as snow removal systems and assemblies and related components, as well as component combinations and related methods.

Abstract: A weight-activated anchoring and alerting apparatus which serves as both (a) an anchoring device or anchoring extension for a fall arrest or other fall protection system and (b) an automatic alarm system which notifies rescue personnel or others when the worker, hunter, or other person wearing the fall protection system has fallen and is in need of rescue.

Abstract: The present disclosure relates to a method and apparatus for cleaning a 3D printed article, in particular a 3D printed heat exchanger. After 3D printing, an article may have internal passages formed from bonded powder and said passages may contain unbonded powder that needs to be removed before further use of/processing of the article. To remove this unbonded powder, the article is filled with a cleaning fluid and vibrated. The cleaning fluid is then pumped out of the article and past a sensor that generates a magnetic field. The sensor detects the presence of powder particles in the fluid by detecting a perturbation of the magnetic field caused by said particles. The fluid is then filtered and returned to a reservoir for use. The sensor may indicate the article is sufficiently clean when a detected concentration of particles in the fluid drops below a threshold.

Abstract: A light guide plate can include: a first end surface coupled to a reflection surface and a second end surface; where an incident light entering the light guide plate through the first end surface is reflected by the reflection surface and then output from the second end surface; and a diffusion structure configured to increase a transmission path of the incident light in the light guide plate.

Abstract: A shipping box includes a plurality of sides and a plurality of bladders. The sides are arranged as a rectangular solid with fixed sides and a top side. The top side includes an openable cover for access to an interior of the rectangular solid. The rectangular solid has a size determined based on dimensions of an object placed in the interior of the rectangular solid. The bladders are arranged on each of the sides and configured to be inflated as a cushioning mechanism for the object while placed in the interior of the rectangular solid. The bladders are made of a material based on a weight of the at least one object.

Abstract: An apparatus for producing ventral images of aquatic organisms, such as amphibians, for example, of newts the apparatus comprising a hollow conduct and a watertight container. The hollow conduct has a first opening and a second opening being opposed from each other. The hollow conduct and the watertight container are separated by a wall which transmits the wavelengths comprised between 390 nm and 1.4 ?m. The apparatus is opaque to the wavelengths comprised between 390 nm and 1.4 ?m. The watertight container comprises an underwater video camera oriented towards the wall. The apparatus is remarkable in that the watertight container is positioned below the hollow conduct, the watertight container being filled with clean water. Additionally, a method for detecting, identifying and/or individualizing aquatic animals.

Abstract: A photoluminescent aircraft floor path marking system includes at least a flexible track having a housing incorporating a flexible, pliable, photoluminescent portion in which the track is bendable to a radius of 1 m or less and the track has a length of at least 2 m, where the track is pliable such that it can retain a rolled or bent radius. The track may be bendable to a radius of from 0.01 m to 1.0 m or optionally from 0.01 m to 0.5 m. The flexible track may be provided in lengths of from 3 m or greater or greater than 10 m. A flexible protective layer may be provided. The flexible housing may include a holder for the photoluminescent material.

Abstract: Methods, systems and apparatus for determining or identifying the type of product in a dispenser based at least in part on the length of rolled product dispensed and/or the radial measurement.

Abstract: A weight bearing fall protection connector includes a first connection member configured to attach the connector to a piece of fall protection equipment, and a second connection member configured to attach the connector to another piece of all equipment, with the connection members fixed to each other to transfer the weight of a worker in a fall event and for movement relative to each other between a ready position and a fall position. The connector further includes a breakable component having a retaining condition wherein the component maintains the members in a ready position and broken condition wherein the component allows the members to move to their fall position. The connector further includes a wireless fall indicator including a wireless transmitter and a switch configured to activate the wireless transmitter in response to movement of the members from the ready position to the fall position.

Abstract: This disclosure relates to a motor vehicle with a portable signature light assembly, and a corresponding method. In an example, a signature light assembly configured to promote brand recognition of the motor vehicle is operable in a first mode in which the signature light assembly is connected to the motor vehicle and a second mode in which the signature light assembly is removed from the motor vehicle.

Abstract: The present invention refers to a method for providing a liquid display displaying a selectable pattern (20-29, 45-48, 58-62) wherein a) either light rays (8, 79) emitted by a first emitter are characterized by at least one light parameter, with the light parameter being defined by a first light parameter defining the light rays (8, 79) as such, like the frequency and/or amplitude of the light, and/or by a second light parameter defining the emission of the light rays (8, 79), like the location, repetition rate, width and/or form of emission pulses of the light rays (8, 79), and light deflecting means (17-19, 39-43, 60-62, 82) emitted by a second emitter depend on the light parameter such that the emitted light deflecting means (17-19, 39-43, 60-62, 82) are tuned to the emitted light rays (8, 79) to create cinematographic light effects, b) or the light deflecting means (17-19, 39-43, 60-62, 82) emitted by the second emitter are characterized by at least one deflecting parameter, with the deflecting parame

Abstract: A capless fuel system comprises a fuel inlet body, a flapper pivotably mounted within the fuel inlet body, a biasing member associated with the flapper, an axially movable shaft associated with the biasing member, and a tension calibrator associated with the biasing member, whereby tension on the controller spring may be adjusted by the calibrator. The biasing member may be of a variety of biasing elements but is preferably a controller spring. The shaft is reversibly movable from a tensioning position in which the electromechanical driver assembly is deactivated to a tension-lowering position in which the electromechanical driver assembly is activated. The capless fuel system includes a fuel pump nozzle position sensing system. The capless fuel system relies upon a single, multi-function flapper that functions as both the capless fuel system debris cover and a sealing member to prevent evaporative emission leaks.

Abstract: An emergency illumination apparatus is integrated into a door lock mechanism including a manual release member and a latch which is displaceable between an engaged position with the jamb of an associated exit door, and a disengaged position, enabling opening of the door. The apparatus includes an illumination device including a base member mounted to the door lock mechanism or a surface of the associated exit door and a spaced array of discrete illumination elements extending along at least one axis intersecting with or circumventing the manual release member. A sensor operates to detect an emergency condition such as the presence of excessive heat, smoke, carbon monoxide, noxious gas and the like, and generate an alarm signal in response thereto. An independent power supply is disposed within the emergency door lock illumination apparatus. A controller energized by the power supply activates the illumination device in response to the alarm signal.

Abstract: Communication from enterprise servers to handheld devices in the field supports dispatch, data synchronization, logistics and personnel. Bi-directional data delivery from enterprise-based servers over wireless data networks is enabled using wireless capabilities resident in handheld personal computing devices. Real time communications facilitates real-time access to remote programs, assistance and/or information related to the field operations and asset (personnel and inventory) resource management. Management is facilitated for at least one of: construction industry project analysis, HVAC system analysis, project management, equipment readiness inspection, troubleshooting, inventory tracking, inventory ordering, sales (e.g., providing cost estimates to customers), customer invoicing, conducting legal investigations, field data collection, and multi-user remote function coordination.

Abstract: A tag assembly for measuring a characteristic of a tree includes a band and a shield strip. The band is configured to encircle the tree and has a plurality of tags spaced apart along the band. The shield strip extends along the band to thereby shield a number of tags in the plurality of tags such that the plurality of tags includes shielded tags and unshielded tags. The shield strip prevents the shielded tags from being read or emitting signals and while the unshielded tags can be read or emit signals such that the characteristic of the tree can be determined.

Abstract: A charging system, comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus.

Abstract: One general aspect of the present disclosure includes a display device for a vehicle for displaying at least one symbol. The display device may include a translucent cover layer, a symbol layer having a translucent symbol panel for displaying a symbol, and an opaque surface encompassing the symbol panel. A gap may be disposed between the symbol panel and the cover layer. A waveguide assembly may be included and configured to conduct light onto a side of the symbol panel facing away from the cover layer.

Abstract: A bicycle controlling device including a lifting controller, a shifting controller, a height adjusting assembly, an electric rear derailleur and a seat height controller is disclosed. The lifting controller and the shifting controller are respectively adapted to generate and emit a lifting control signal or a shifting control signal. The height adjusting assembly is positioned in the seat tube and can be controllably lifted or fixed at a height. The seat height controller is fixed to the seat tube, and includes a wireless signal receiver, a control circuit and a motor. The wireless signal receiver is adapted to receive/transmit the lifting/shifting control signal to the control circuit, which is electrically connected with the electric rear derailleur and the motor, and controls the motor/the electric rear derailleur with the received lifting/shifting control signal. The motor can mechanically control the lifting of the height adjusting assembly or fix its height.

Abstract: An interchangeable face gauge structure for automobile gauges comprises a gauge body, a face gauge, a retainer ring and an outer cover. The gauge body and outer cover are combined by means of assembling, which causes the outer cover to be dismountable from and re-mountable on the gauge body. The face gauge is additionally mounted on the surface of the light directing panel on the gauge body, which allows the face gauge to be replaceable with one of the type to the liking of the user after the outer cover is dismounted from the gauge body, improving the variability and visual effect of the gauge body. Further, with the convenience of the outer cover being easily mountable on the gauge body, the user is allowed to replace and mount parts by themselves, adding to the practicality of the structure.

Abstract: An operation order system includes a management apparatus that manages processing executed by a plurality of processing machines and operations performed on the processing machines by operators and that determines a next operation for each operator based on an operation state of the operator, and portable terminal that can be carried by the operator and via which the operator can input the operation state of the operator so that the portable terminal transmits the input operation state to the management apparatus through wireless communication, the portable terminal receives the next operation from the management apparatus through wireless communication and displays the received next operation. The portable terminal receives, as the operation state, operation start information or operation completion information input from the operator indicating that the operator has started or completed the operation at a home position in a facility.

Abstract: An operating button includes a light source, a push rod with a diverging lens, and an operating head with a condensing lens. The optical center of the diverging lens, the optical center of the condensing lens and the light source are in the same line such that light rays generated by the light source pass through the diverging lens and the converging lens before exiting the operating head as parallel light.

Abstract: A lighting module for a vehicle is disclosed. The lighting module comprises a light source configured to generate a light emission in an emission direction substantially along a forward operating direction of the vehicle. A circuit is in connection with the light source. The lighting module further comprises an optic device comprising a body forming a receiving surface. The receiving surface is configured to receive an input emission of the light emission. The optic device is configured to transmit the input emission through the body, emit a first portion of the input emission along a primary path directed toward a passenger compartment of the vehicle, and emit a second portion of the input emission along a stray light path into a light trap formed by the body and arranged substantially opposite the light extraction surface.

Abstract: A system including a gantry structure; a first and a second saw head movable along at least part of the length of the gantry structure; and a first and a second lumber support also movable along corresponding lengths of the gantry structure. A controller moves the first saw head and first lumber support adjacent a first location along a board and moves the second saw head and second lumber support adjacent a second location along a board, and operates the first and second saw heads to cut first and second ends off the board. The controller then moves the saw heads and the lumber supports relative to the board to third and fourth locations and operates the first and second saw heads to cut third and fourth end pieces off. The saw heads and lumber supports optionally move together and rotate around respective vertical axes to enable angled board cuts.

Abstract: A method for controlling water output of a water purifier is provided. The method includes: determining whether a container is placed in a water collecting region of the water purifier; determining whether there is a content in the container when the container is placed in the water collecting region; acquiring recognition information of the container when there is no content in the container, and determining category information of the container based on the recognition information; determining water output type information corresponding to the container as reference water output type information based on the category information of the container; acquiring content information of the container when there is content in the container, and determining category information of the content based on the content information; and determining water output type information corresponding to the content as reference water output type information based on the category information of the content.

Abstract: A turn signal unit for an external mirror for a motor vehicle is designed to radiate a flashing light forwards in the direction of travel with the turn signal unit and the external mirror in the installation position at the side of the vehicle. The turn signal unit includes a light source and a lens disposed in front of the light source. A film with alternating light transmissive and non-light transmissive structures is clamped in the space between the light source and the lens. The film is clamped via a clamping structure which includes structure that is part of the lens and/or a housing portion of the turn signal unit.

Abstract: Pressure indicator comprising a base, a deformable membrane fixed to the base in a fluid-tight manner according to a closed contour, and a body fixed to the base, delimiting a hollow volume covering the deformable membrane on the side opposite the base, while encompassing at least the closed contour, at least one inlet for a fluid the pressure of which is to be measured in a pressure range, wherein the deformable membrane is such that the expansion thereof for said pressure range is sufficient to be visible to the naked eye and to allow a direct display indicative of the pressure, in that the base is drilled with at least one first hole a first end of which emerges between the deformable membrane and the base in the closed contour, in that the body is drilled with at least one second hole a first end of which emerges into said hollow volume, in that the other end of the first hole is linked to the inlet respectively to the open air, in that the other end of the second hole is linked to the open air, respectiv

Abstract: An illuminating device includes a light source having a light-source optical axis, a lens that is located substantially parallel to the light-source optical axis such that a surface of the lens faces the light-source optical axis, the lens extending to a position rearward of the light source in a direction of the light-source optical axis, and a light reflecting portion located so as to be opposed to a front side of the light source, the light reflecting portion being adapted to reflect emitted light of the light source obliquely rearward of the light source, and reflect the emitted light toward the lens.

Abstract: A directionally adjustable pool light includes a lamp assembly having a body encircled by a collar. The collar includes a conical portion and the body partially defines a spherical space. The body has posts along an axis running centrally through the spherical space and is held against the conical portion by the posts. Rotating an adjusting screw accessible through the collar causes the body to rotate. A pivoting frame and adjustment nut couple the adjusting screw to the body, with the frame sliding relative to the body. LEDs are located substantially centrally in the spherical space, a trim cover is located over the collar, and a removable diffuser over the LEDs is surrounded by the collar.

Abstract: Improvements in an emergency inflatable signal locator is disclosed the emergency inflatable signal locator is a portable self-contained emergency inflatable illuminated signal location indicator generally provides a carrying case defining an interior volume carrying a container of compressed helium and an inflatable balloon having a reflective exterior surface and carrying a light source, the inflatable balloon connected to one end of a length of tether. The tether having a second end portion securely fastened to a reel that is securely interconnected to the interior of the carrying case allowing the inflated balloon to be retracted if necessary.

Abstract: A label includes a timer to monitor a predetermined time period relating to a medical device, such as an indwelling cannula, or other product. The label includes a signalling apparatus that provides an alert signal on expiry of the predetermined time period and a fixing portion to fix the label to a support surface such as medical records of a patient. The label can have a first portion and a second portion and the first portion can be separable from the second portion. The fixing portion can be provided in the second portion and all or part of the signalling apparatus provided in the first portion. Also disclosed is a monitoring system for a medical device, including a base station and a label receivable by the base station. The monitoring system monitors a predetermined time period based on receipt of the label by the base station.

Abstract: An end of train device includes an enclosure having an exterior and a hollow interior housing a plurality of components; and a protective arrangement disposed within the hollow interior of the enclosure and fitted at least partially around at least one component housed within the hollow interior. The protective arrangement defines at least one compartment for the at least one component of the plurality components. The protective arrangement at least partially supports and isolates the at least one component from the enclosure. The device also includes an impact resistant handle disposed on the exterior of the enclosure. The handle is configured to absorb impacts without causing substantial deformation to the enclosure.

Abstract: A display device includes a translucent windscreen, particularly the windscreen of a motor vehicle, a narrow-band light source that emits light into the windscreen via an edge thereof, and a periodic structure formed in the windscreen that bends the light from the light source toward the eye of a driver.

Abstract: A system for measuring air quality, including a housing having an inlet, and outlet, and defining an air pathway therebetween, an air pump operationally connected in fluidic communication with air inlet and outlet for urging along the air flow pathway, a particle collector having an adhesive side positioned in the air flow pathway, and an electronic controller operationally connected to the optical sensor assembly for sending control signals to the optical sensor assembly and for receiving data from the optical sensor assembly. The system also includes an optical sensor assembly positioned for optical interrogate the particle collector, and further including a light source positioned to shine on the particle collector and an optical sensor positioned to receive light travelling from the particle collector.

Abstract: The present disclosure includes an apparatus and method relating to LED fixtures having an LED module capable of operating at a temperature. The LED module is also capable of being operated within a desired temperature range having an upper limit and a lower limit. A fan is operable for cooling the LED module when the temperature of the LED module approaches the upper limit. A heater is operable for heating the LED module when the temperature of the LED module approaches the lower limit. A heat sink may be in thermal communication with the LED module such that the fan may cool and the heater may heat the heat sink. The controller may also be configured to selectively activate the heater and the fan. The controller may also be in electrical communication with a temperature sensor which is in thermal communication with the LED module such that the controller may read the temperature of the LED module. The controller may activate the fan and/or the heater depending on the temperature of the LED module.

Abstract: A light guide for an optical device, notably for lighting and/or signaling, comprising: at least one light output portion having a top face and a bottom face linked together by a light output rim, at least one collimation subassembly suitable for receiving light emitted by a light source and for directing at least a part of this light toward the light output portion, the collimation subassembly having a top face and a bottom face linked together by a rim, and a coupling portion coupling the light output portion to the subassembly, the coupling portion having a top face and a bottom face, the bottom and top faces of the collimation subassembly extend substantially in mutually parallel planes, and in that the top face of the coupling portion and at least one of the top face of the collimation subassembly and of the top face of the light output portion meet at an edge.

Abstract: An outrigger foot is configured to be disposed on an outrigger of a utility vehicle for detecting secure emplacement of the outrigger. The outrigger foot comprises a housing, a kingpin assembly, and a pad assembly. The housing is configured to be secured to the outrigger. The kingpin assembly is at least partially disposed within the housing. The kingpin assembly is adapted to be in a compressed position while the outrigger foot is securely in contact with the ground, and to be in an uncompressed position while the outrigger foot is free of secure contact with the ground. A proximity sensor is associated with the housing, such that the proximity sensor can detect a proximity of a portion of the kingpin assembly that is in the compressed position. The pad assembly is secured to the kingpin assembly for contacting the ground at various angles.

Abstract: Methods are provided for forming a spliced eye (220) of a sling (222) made from a rope that includes a core rope (37) and includes a braided sheath (398).

Abstract: A vehicle lighting device includes a housing, a first receiving cavity recessed inwardly from a center of a front side of the housing, a first light source received in the first receiving cavity, an annular second receiving cavity recessed in the front side of the housing and surrounding the first receiving cavity, a second light source received in the second receiving cavity, a first envelope fixed in the front side of the housing and covering the first receiving cavity, and an annular second envelope fixed in the front side of the housing and covering the second receiving cavity. An inner face of the second receiving cavity is a bending face including a plurality of reflecting facets for reflecting light emitted from the second light source. Every two adjacent reflecting facets intersect with an angle. The second light source faces at least one reflecting facet distant from the second envelope.

Abstract: Disclosed are a battery state notifying unit readily exchangeble between battery packs differing in the number of battery cell, a bus bar module and a battery pack including the battery state notifying unit, and a battery state monitoring system including the battery state notifying unit. The battery state notifying unit includes a plurality of subunits corresponding to every battery cell, and the subunits in accordance with a cell temperature signal corresponding to a voltage outputted by a bus bar and a terminal fitting, generates a battery state data composed of a digital signal including a data indicating a state of the battery cell corresponding to the subunit, and transmits the battery state data to the external battery state monitoring unit.

Abstract: An electric brake actuator includes first and second electric motors and an actuator output, a first cycloidal speed reducer having a first reducer input rotatable about a first reducer axis and operatively connected to the first motor output gear to receive a first driving force, and a first reducer output rotatable about the first reducer axis and operatively connected to the actuator output to transfer the first driving force to the actuator output, and a second cycloidal speed reducer having a second reducer input rotatable about a second reducer axis and operatively connected to the second motor output gear to receive a second driving force and a second reducer output rotatable about the second reducer axis and operatively connected to the actuator output to transfer the second driving force to the actuator output.

Abstract: A substrate having a light reflective coating defining a mirror surface. A first curvature included on the substrate extending across the mirror surface oriented along a first axis of curvature extending heightwise. A second curvature included on the substrate extending across the mirror surface oriented along a second axis of curvature extending widthwise. The second axis of curvature is angled relative to the first axis of curvature so that the second curvature extends across the mirror surface in a helical arrangement relative to the first axis of curvature. Accordingly, angling the second axis of curvature relative to the first axis of curvature causes the first and second curvatures to cooperate in reducing distortion across the mirror surface.

Abstract: A turbine blade monitoring arrangement includes a bucket tip located at a radial outer location of a bucket. Also included is at least one component disposed radially outwardly of the bucket tip. Further included is a hollow portion of the at least one component, wherein the hollow portion extends radially from a first end to a second end through the at least one component. Yet further included is a first sealing component operatively coupled to the at least one component proximate the first end of the hollow portion, wherein the first sealing component comprises a translucent material. Also included is a proximity sensor disposed radially outwardly of the at least one component and aligned with the hollow portion, the proximity sensor configured to generate a first signal through the hollow portion to the bucket tip.

Abstract: A lighting structure for a meter device is provided to include a dial, a rotating shaft having a light transmitting property, which is provided in a back surface side of the dial and rotates by receiving a turning force from a motor, a light transmitting pointer which is provided integrally with a light transmitting pointer shaft having a hole formed in a base end part into which an end part of the rotating shaft is inserted and fixed and rotates along a surface of the dial, and a light source which outputs the illuminating lights incident on a base end part of the rotating shaft. The pointer shaft includes a first laterally light-dispersing unit formed with a recessed part recessed toward the light source in an end part over the hole for dispersing a part of the illuminating lights incident on the pointer shaft toward the dial.

Abstract: A wearable computing device comprises one or more one eye pieces each of which further comprises a flexible frame surrounding a display screen and tactile elements arranged on the perimeter of the display screen. The tactile elements provide tactile feedback to the user that is synchronous with the display on the display screen. A detection system is also included in the flexible frame to monitor the movements of a wearer's eyes and the eye sockets and to execute various tasks in response to the detected movements. A visual cortex thought detector also coupled to the wearable computing device obtains information regarding the wearer's thoughts and manipulates a display on the display screen based on the obtained information.

Abstract: The invention relates to a self-propelled road-milling machine for doing work on surfacings on the ground, and in particular carriageways. The road-milling machine according to the invention is characterized by a signalling arrangement which has at least one control unit for the entry of at least two different states of operation by the driver of the road-milling machine and at least one visual indicator or display unit to indicate or display for the driver of the transporting vehicle the at least two states of operation which are preset with the control unit by the driver of the road-milling machine. The first state of operation may be a request for the transporting vehicle to be braked or stopped and the second state of operation may be a request for the transporting vehicle to be started or to continue travelling. In a preferred embodiment of the visual indicator or display unit, the request for braking or stopping is shown as a cross and the request for starting or continued travel as an arrow.

Abstract: A signal or lighting system synchronizes the flashing of multiple signal or lighting assemblies. When one of the assemblies is triggered, it broadcasts a temporally staggered sequence of signals, each signal instructing the receiving assemblies to initiate flashing of their beacons a given countdown time after that particular signal is transmitted. The countdown times of the various signals all count down to the same flashing start time so that the originating and receiving beacons all being flashing at the same time. The temporal diversity of the signals enhances the ability to overcome potential interference as at least one of the signals in the sequence is likely to be received by the destination assemblies.

Abstract: An indicating assembly for a container in which pressurized fluid is stored comprises a valve assembly connected to the pressurized container and having a fluid passage for receiving the pressurized fluid and a piston movable within the valve assembly along a longitudinal axis in response to fluid pressure within the fluid passage. The assembly further comprises an indicating member movable in response to longitudinal movement of the piston between a first condition providing a first indicator portion representing fluid pressure below a threshold pressure and a second condition providing a second indicator portion representing fluid pressure above the threshold pressure.

Abstract: The touch-operating input device is configured so that when the control circuit turns on the main light source corresponding to each of the translucent operation buttons that can be operated, the control circuit, on condition that the translucent operation button corresponding to the main light source that is turned on is operated, turns off the sub-light source corresponding to the translucent operation button that is turned on simultaneously with the main light source. Ease of operation is increased by enabling the operator to distinguish operated translucent operation buttons from translucent operation buttons that have not been operated according to whether or not the main light sources are lit.

Abstract: A tier for a tower light consists of a tubular body having spaced apart inner and outer walls joined together to maintain a fixed relationship and defining an annular space for receiving a sleeve and having an access opening in the outer wall through which the sleeve may be inserted into and removed from the annular space, the inner and outer walls being joined together by an annular base upon which the sleeve is seated. There is also disclosed a tower light having one or more such tiers.