An apparatus and methods are provided for a ballistic shield system that enables a shooter to very accurately fire a handgun or a rifle while remaining well protected by the ballistic shield and looking through a bullet resistant viewing window comprising the ballistic shield. A high visibility green laser sight/high output white light illumination system may be mounted onto the firearm for aiming and illumination, with the firearm being precisely but removably mounted to the side of the shield at a location where the firearm's grip can be ergonomically grasped in the shooter's dominant hand, both for operating the firearm and for controlling the position and orientation of the ballistic shield for aiming purposes. An interface that enables the firearm to be precisely but removably mounted to the shield may comprise a quick-draw holster that is mounted directly onto the ballistic shield.
Muzzle device attachments, flash hiders, flash hider suppressor adapters, blast regulators, muzzle brake suppressor adapters, all of the foregoing for use with firearms.
Muzzle device attachments, flash hiders, flash hider suppressor adapters, blast regulators, muzzle brake suppressor adapters, all of the foregoing for use with firearms.
Muzzle device attachments, flash hiders, flash hider suppressor adapters, blast regulators, muzzle brake suppressor adapters, all of the foregoing for use with firearms.
Muzzle device attachments, flash hiders, flash hider suppressor adapters, blast regulators, muzzle brake suppressor adapters, all of the foregoing for use with firearms.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Earpiece retention device, namely, a ring that fits into the concha bowl of the ear for the purpose of holding an earbud or other ear-related device in place
14.
ADJUSTABLE GAS REGULATOR VALVE FOR DIRECT GAS OPERATED FIREARMS
An apparatus and methods are provided for a gas regulator valve for adjusting cycle speeds of direct gas impingement operated firearms. The gas regulator valve comprises a gas inlet for receiving expanding gases from a fired cartridge and a gas tube for directing the expanding gases to a bolt carrier comprising a firearm. The gas inlet is disposed at the front of an upper receiver comprising the firearm. The gas tube directs the expanding gases into a carrier key of the bolt carrier. The gas regulator valve includes a plug for controlling gas flow through the gas tube. An actuator disposed on a side of the upper receiver enables operating the plug. The actuator enables a practitioner to adjust the flow of expanding gases without moving the firearm out of a shooting position. The actuator includes a key that may be turned by a rim of an ammunition cartridge.
An apparatus and methods are provided for a front plate having a diverging central bore for firearm sound suppressors that improves noise and flash characteristics during firing a weapon. The central bore is disposed between a back surface and a front surface of the front plate. An untapered portion of the central bore extends from the back surface to a diverging portion that opens toward the front surface. The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore. The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases accompanying a fired bullet exiting the suppressor through the central bore. The curvature profile exhibits a cross-sectional area of the central bore that is proportional to a distance along the diverging portion.
Systems and methods for providing a virtual window may include a projector, which projects an image upon a projection surface. The projection surface can be arranged at a distance of separation from a user. The system can further comprise a plurality of sensors forming a field of detection with respect to an area of space encompassing the distance of separation between the projection surface and the user. The plurality of sensors can capture position data for the user representing a current position of the user within the field of detection. The system can also include at least one processor rendering a computer simulated environment as the projected image, wherein the at least one processor processes the captured position data such for the user such that the computer simulated environment is generated in a perspective relative to the current position of the user within the field of detection.
G06F 3/00 - Dispositions d'entrée pour le transfert de données destinées à être traitées sous une forme maniable par le calculateur; Dispositions de sortie pour le transfert de données de l'unité de traitement à l'unité de sortie, p.ex. dispositions d'interface
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
Systems and methods for providing a virtual window may include a projector, which projects an image upon a projection surface. The projection surface can be arranged at a distance of separation from a user. The system can further comprise a plurality of sensors forming a field of detection with respect to an area of space encompassing the distance of separation between the projection surface and the user. The plurality of sensors can capture position data for the user representing a current position of the user within the field of detection. The system can also include at least one processor rendering a computer simulated environment as the projected image, wherein the at least one processor processes the captured position data such for the user such that the computer simulated environment is generated in a perspective relative to the current position of the user within the field of detection.
An apparatus and methods are provided for a front plate having a diverging central bore for firearm sound suppressors that improves noise and flash characteristics during firing a weapon. The central bore is disposed between a back surface and a front surface of the front plate. An untapered portion of the central bore extends from the back surface to a diverging portion that opens toward the front surface. The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore. The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases accompanying a fired bullet exiting the suppressor through the central bore. The curvature profile exhibits a cross-sectional area of the central bore that is proportional to a distance along the diverging portion.
An apparatus and methods are provided for a suppressor to be coupled with a muzzle end of a barrel of a firearm to reduce muzzle blast and muzzle flash. The suppressor comprises a housing having a proximal end and a distal end. A front portion within the housing comprises a series of cylindrical gas expansion chambers for attenuating the temperature and energy of propellant gases accompanying a projectile fired from the firearm. An annular gas expansion chamber surrounds the cylindrical gas expansion chambers and directs a portion of the propellant gases from a rear portion of the suppressor to peripheral vents disposed at the distal end. Lateral chambers within the rear portion deflect and rebound a portion of the propellant gases before passing them into the annular gas expansion chamber. Ledges within the annular gas expansion chamber direct the propellant gases distally through suppressor toward the peripheral vents.
An apparatus and methods are provided for a suppressor to be coupled with a muzzle end of a barrel of a firearm to reduce muzzle blast and muzzle flash. The suppressor comprises a housing having a proximal end and a distal end. A front portion within the housing comprises a series of cylindrical gas expansion chambers for attenuating the temperature and energy of propellant gases accompanying a projectile fired from the firearm. An annular gas expansion chamber surrounds the cylindrical gas expansion chambers and directs a portion of the propellant gases from a rear portion of the suppressor to peripheral vents disposed at the distal end. Lateral chambers within the rear portion deflect and rebound a portion of the propellant gases before passing them into the annular gas expansion chamber. Ledges within the annular gas expansion chamber direct the propellant gases distally through suppressor toward the peripheral vents.
As disclosed herein, the technology relates to firearms including a modular trigger mechanism designed with the capability to provide a practice pistol that accurately and realistically mimics various models of center fire pistols and firearms. In one embodiment, a trigger mechanism comprising a static sear, trigger, and sear bar. In another embodiment, the trigger mechanism provides the user of a practice pistol the realistic sense of a center fire pistol trigger in that its positional geometry, weight of pull, weight at break, and trigger position at disconnect reset point, will perform within a realistic range.
F41A 19/15 - Ensembles modulaires de mécanismes de mise à feu
F41A 33/02 - Armes émettant une projection lumineuse ou un rayonnement
F41J 5/14 - Appareils pour signaler les coups au but ou le score au tireur, p.ex. manœuvrés à la main, ou pour établir une communication entre la cible et le tireur; Appareils pour enregistrer des coups au but ou des scores
A lighting device power control circuit configured to charge one or more capacitors through the pulsing of an inductor is provided. In one example, a lighting device includes a light source and a power control circuit. The power control circuit comprises an inductor, a power transistor configured to pass an operating current associated with the light source, and one or more capacitors configured to keep the power transistor turned on to pass the operating current. The one or more capacitors are configured to be periodically charged in response to a voltage spike generated across the inductor. Related methods and additional embodiments are also provided.
H05B 45/38 - Alimentation du circuit à découpage [SMPS] en utilisant une topologie de survoltage
F21L 4/00 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21L 4/08 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés par des moyens pour recharger sur place les accumulateurs ou les piles
F21V 25/04 - Dispositifs de sécurité associés structuralement avec les dispositifs d'éclairage entrant en action quand le dispositif d'éclairage est dérangé, démonté ou cassé ouvrant le circuit électrique
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
A firearm suppressor with a recoil booster may be provided. In one example, the suppressor may include a housing, a back end member coupled to the housing, and a recoil booster coupled to the back end member. The recoil booster may be configured to couple to a firearm. The recoil booster may include a coil spring, a rear cap coupled to the back end member, and a piston configured to slide relative to the rear cap. The rear cap may include a main body at least partially disposed within the back end member and including a first bearing surface to receive a first end of the spring and a flange extending forward from the main body and maintained within an inner circumference of the spring. The piston may include a second bearing surface configured to receive a second end of the spring. Additional embodiments and related methods are provided.
F41A 21/26 - Tubes d'arme; Accessoires de bouches de canon; Montage des tubes d'arme spécialement adaptés pour renforcer le recul, p.ex. pour l'entraînement
A rail mountable device may be provided that is configured to be secured firmly to a rail. In one example, the rail mountable device may include a rail clamp that includes a screw, a screw receptacle, a first ramp member coupled to the screw, and a second ramp member coupled to the screw receptacle and configured to move relative to the screw receptacle. Additionally, the rail mountable device may include a removeable battery pack with a battery indicator. Furthermore, the rail mountable device may include a plurality of switches disposed on either side of the rail mountable device. The switches may be coupled to a bracket and a mode of the rail mountable device may be operated through manipulation of the switches. Additional embodiments and related methods are provided.
A rail mountable device may be provided that is configured to be secured firmly to a rail. In one example, the rail mountable device may include a rail clamp that includes a screw, a screw receptacle, a first ramp member coupled to the screw, and a second ramp member coupled to the screw receptacle and configured to move relative to the screw receptacle. Additionally, the rail mountable device may include a removeable battery pack with a battery indicator. Furthermore, the rail mountable device may include a plurality of switches disposed on either side of the rail mountable device. The switches may be coupled to a bracket and a mode of the rail mountable device may be operated through manipulation of the switches. Additional embodiments and related methods are provided.
The present disclosure relates to a holster, comprising a control component, wherein the holster is adapted to allow a user the option of drawing a weapon and an accessory attached to the weapon. Further disclosed herein is a holster, comprising a control component adapted to receive a handgun assembly comprising a handgun and a light accessory attached to the handgun, and further comprising one or more actuators, wherein the one or more actuators are capable of moving between a neutral position and an engaged position, as the handgun assembly is inserted into the holster, retained in the holster, or drawn from the holster. Also disclosed herein are methods of using the holster.
F41C 33/02 - Etuis, c. à d. gaines de pistolets, p.ex. de revolvers, comportant des moyens pour les porter ou pour le porter sur soi, p.ex. à la ceinture ou sous le bras
F41G 1/35 - Appareils de visée de nuit, p.ex. luminescents combinés à une source lumineuse, p.ex. projecteur pour éclairer la cible
The present disclosure relates to a holster, comprising a control component, wherein the holster is adapted to allow a user the option of drawing a weapon and an accessory attached to the weapon. Further disclosed herein is a holster, comprising a control component adapted to receive a handgun assembly comprising a handgun and a light accessory attached to the handgun, and further comprising one or more actuators, wherein the one or more actuators are capable of moving between a neutral position and an engaged position, as the handgun assembly is inserted into the holster, retained in the holster, or drawn from the holster. Also disclosed herein are methods of using the holster.
F41C 33/02 - Etuis, c. à d. gaines de pistolets, p.ex. de revolvers, comportant des moyens pour les porter ou pour le porter sur soi, p.ex. à la ceinture ou sous le bras
F41C 33/00 - Dispositions pour le port ou le transport d'armes individuelles
A handheld lighting device is provided with a detachable knife assembly. In one example, the handheld lighting device may include a light source that generates a light beam to illuminate a scene, such as a work area. The knife assembly may be coupled to the lighting device using an attachment mechanism. The lighting device may include a slot that may receive a sleeve of the knife assembly such that the knife assembly may be secured to the lighting device. The lighting device may illuminate the work area such that a user may readily see the area that a knife of the knife assembly may cut. The light source of the lighting device may be activated using a multi-access user control that may be L-shaped and actuated from one or more locations on the user control. Additional features and related methods are also provided.
Various techniques are provided to implement and use an earpiece having an attachment mount. In one example, an earpiece includes an arcuate rib having a lobe disposed on an upper end thereof and configured to engage with a crus of a helix and an antihelix of a user's ear. The earpiece also includes a mount extending from the arcuate rib and comprising a snap clip configured to engage and position an audio device in contact with the user's ear. Other implementations and related methods are also provided.
An earpiece that substantially lacks a lower lobe is disclosed. In one example, the earpiece can have a generally arcuate rib having upper and lower ends. A lobe can be formed at the upper end of the arcuate rib. No lobe is formed at the lower end of the arcuate rib. An extension can extend from the earpiece and can be configured to extend into the ear canal. Eliminating the lower lobe mitigates discomfort during use and also reduces the likelihood of tissue damage and infection. The extension can enhance communication of desired sound, e.g., from a two-way radio, to an eardrum while mitigating communication of undesirable ambient noise to the eardrum. Other implementations and related methods are also disclosed.
A rail mountable device may be provided that is configured to be secured firmly to a rail, such as a rail on a firearm, and released easily from the rail. In one example, the rail mountable device may include a rail clamp that includes first and second rail-engaging surfaces of corresponding first and second ramp members and a cross member that, in response to rotation of a screw, move toward or away from the longitudinal faces of the rail of the firearm to secure or release the rail mountable device to or from the rail. Additional embodiments and related methods are provided.
Various embodiments are provided to implement an attachment for a firearm that operates as a flash hider, a muzzle brake, and/or to mount, e.g., a sound suppressor, to the firearm. In one example, a firearm attachment includes a base adapted to couple to a muzzle end of a barrel of a firearm. The firearm attachment includes a plurality of longitudinal tines that extend forward from the base. The base includes a plurality of apertures disposed rearward of the tines and that extend from a bore within the base through an outer circumfery of the firearm attachment. The apertures exhibit a first diameter at the bore and a second larger diameter at the outer circumfery. The apertures are adapted to impart thrust to the firearm attachment in response to combustion gases passed from the bore through the apertures to compensate for muzzle rise associated with the firearm.
Various techniques are provided to assemble, manufacture, and operate firearm sound suppressors. In one example, a sound suppressor for a firearm includes a baffle; a spacer abutted to the baffle; and a circumferential laser weld joining the baffle and the spacer. In another example, a sound suppressor for a firearm includes a plurality of baffles; a plurality of spacers; a substantially tubular housing surrounding the baffles and the spacers; wherein the housing and the spacers define an annular volume surrounding the spacers; an aperture in a circumfery of at least one of the spacers; and wherein the aperture is adapted to direct combustion gases in a radial direction from within the spacer into the annular volume to reduce ejection port flash of the firearm. Additional suppressor embodiments and related methods are also provided.
Various embodiments are provided to implement an attachment for a firearm that operates as a flash hider, a muzzle brake, and/or to mount, e.g., a sound suppressor, to the firearm. In one example, a firearm attachment includes a base adapted to couple to a muzzle end of a barrel of a firearm. The firearm attachment includes a plurality of longitudinal tines that extend forward from the base. The base includes a plurality of apertures disposed rearward of the tines and that extend from a bore within the base through an outer circumfery of the firearm attachment. The apertures exhibit a first diameter at the bore and a second larger diameter at the outer circumfery. The apertures are adapted to impart thrust to the firearm attachment in response to combustion gases passed from the bore through the apertures to compensate for muzzle rise associated with the firearm.
A lighting device may include a light source and a reflective optical element. The reflective optical element may have a reflective internal surface that defines a cavity. The internal surface may include longitudinal undulations. The internal surface may be faceted or non-faceted. The light source may be at least partially disposed in the cavity. The shape profile of the internal reflective surface in any plane containing the surface's symmetry axis may be non-paraboloidal and may exhibit undulations running along its length. The reflective optical element may be a monolithic structure and may be a beam-shaping reflector that generates a light beam that, in comparison with a paraboloidal reflector having the same hole size, aperture size, and light source, is relatively fainter at small off-axis angles, brighter at mid-range off-axis angles, and fainter at large off-axis angles than a light beam generated by the paraboloidal reflector. Related methods are provided.
Illumination devices may be provided with one or more light sources that emit light of the same, similar, and/or different optical spectra within a wavelength range, for example, from the extreme ultraviolet (UV) to the far infrared (IR). One or more of the light sources may be selectively adjusted to control the overall mix of light projected onto a scene of interest. For example, one or more light sources may be used, and sometimes in conjunction with other optical elements, to provide illumination having a particular angular intensity distribution, color temperature, and/or other desired optical properties for a scene within a field of view (FOV) of the camera of a mobile device used for videography and/or photography. One or more illumination devices may also be used as flashlights and/or as sources of electrical power for recharging mobile devices. Related methods are provided.
F21V 7/09 - Structure de l'optique à combinaison des différentes courbures
F21L 4/02 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés par la présence de plusieurs sources lumineuses
Illumination devices may be provided with one or more light sources that emit light of the same, similar, and/or different optical spectra within a wavelength range, for example, from the extreme ultraviolet (UV) to the far infrared (IR). One or more of the light sources may be selectively adjusted to control the overall mix of light projected onto a scene of interest. For example, one or more light sources may be used, and sometimes in conjunction with other optical elements, to provide illumination having a particular angular intensity distribution, color temperature, and/or other desired optical properties for a scene within a field of view (FOV) of the camera of a mobile device used for videography and/or photography. One or more illumination devices may also be used as flashlights and/or as sources of electrical power for recharging mobile devices. Related methods are provided.
H04B 1/38 - TRANSMISSION - Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission Émetteurs-récepteurs, c. à d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception
F21L 4/02 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés par la présence de plusieurs sources lumineuses
F21Y 103/10 - Sources lumineuses de forme allongée, p.ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
A rail mountable device may be provided that is configured to be secured firmly to a rail, such as a rail on a firearm, and released easily from the rail. In one example, the rail mountable device may include a rail clamp that includes first and second rail-engaging surfaces of corresponding first and second ramp members and a cross member that, in response to rotation of a screw, move toward or away from the longitudinal faces of the rail of the firearm to secure or release the rail mountable device to or from the rail. Additional embodiments and related methods are provided.
Various techniques are provided to assemble, manufacture, and operate firearm sound suppressors. In one example, a sound suppressor for a firearm includes a baffle; a spacer abutted to the baffle; and a circumferential laser weld joining the baffle and the spacer. In another example, a sound suppressor for a firearm includes a plurality of baffles; a plurality of spacers; a substantially tubular housing surrounding the baffles and the spacers; wherein the housing and the spacers define an annular volume surrounding the spacers; an aperture in a circumfery of at least one of the spacers; and wherein the aperture is adapted to direct combustion gases in a radial direction from within the spacer into the annular volume to reduce ejection port flash of the firearm. Additional suppressor embodiments and related methods are also provided.
A lighting device attachment for a mobile device may include a housing that defines a cavity or an external coupling member configured to receive the mobile device, a light source within the housing, and an optical element adapted to project light from the light source to illuminate an external scene. The attachment may include multiple light sources and multiple associated optical elements to generate a combined beam for illuminating the external scene which may include the field of view of a camera of the mobile device. The camera and the light sources may be cooperated to capture still or video images. The attachment may include a battery that provides power to the light sources and/or the mobile device and may charge a battery of the mobile device. The light sources may be operated by a control device of the attachment and/or by the mobile device. Related methods are provided.
F21V 7/09 - Structure de l'optique à combinaison des différentes courbures
F21L 4/02 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés par la présence de plusieurs sources lumineuses
An earpiece that substantially lacks a lower lobe is disclosed. In one example, the earpiece can have a generally arcuate rib having upper and lower ends. A lobe can be formed at the upper end of the arcuate rib. No lobe is formed at the lower end of the arcuate rib. An extension can extend from the earpiece and can be configured to extend into the ear canal. Eliminating the lower lobe mitigates discomfort during use and also reduces the likelihood of tissue damage and infection. The extension can enhance communication of desired sound, e.g., from a two-way radio, to an eardrum while mitigating communication of undesirable ambient noise to the eardrum. Other implementations and related methods are also disclosed.
A live-fire simulation system uses a position sensitive detector (PSD) in a weapon-mounted sensor to intercept emitted light from target emitters spatially distributed about a target. Each target emitter is modulated with a unique frequency. The system can thus not only determine the points of interception on the PSD but also determine which emitter caused which interception by using a frequency analysis.
F41G 3/26 - Appareils d'instruction ou d'entraînement pour le pointage
F41J 5/02 - Systèmes détecteurs photo-électriques de coups au but
G01S 3/784 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée utilisant la comparaison d'amplitude de signaux provenant de détecteurs ou de systèmes de détecteurs statiques utilisant une mosaïque de détecteurs
Hand guards for firearms and related methods are provided. In one example, a hand guard for a firearm includes an elongated tubular housing having a lumen extending between opposite ends thereof. A hand guard mounting assembly is coupled concentrically to a rear end portion of the housing. The mounting assembly includes a pair of opposing transverse surfaces respectively disposed on opposite sides of a transverse flange located on a front end of a barrel nut extending forwardly from a receiver of the firearm. At least one of the transverse surfaces is longitudinally moveable toward the other transverse surface. A mechanism adjustably urges the at least one transverse surface longitudinally toward the other transverse surface so as to clamp the flange firmly between the two transverse surfaces and such that the barrel of the firearm is disposed concentrically within the lumen of the housing.
A coupling for a powered search light includes a body that has a power device that provides electrical power or access to electrical power and a head coupled to the body including an lighting device which provides light when electrically powered. An end is coupled to or included as part of the body. A receiving coupling is coupled to or included as part of the head. A plurality of tabs are defined on the end and extending radially therefrom. A corresponding plurality of flanges are defined in the receiving coupling and extending radially inward therefrom. The end is arranged and configured to engage the receiving coupling by capture of the plurality of tabs by the corresponding plurality of flanges. A lock locks the plurality of tabs with respect to the plurality of flanges.
F21L 4/00 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés
F21V 31/00 - Dispositions d'étanchéité à l'eau ou aux gaz
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
100.
A COUPLING FOR A SEALED, LOCKABLE BATTERY PACK AND POWER ADAPTER AND A HIGH INTENSITY SEARCH LIGHT
A coupling for a powered search light includes a body that has a power device that provides electrical power or access to electrical power and a head coupled to the body including an lighting device which provides light when electrically powered. An end is coupled to or included as part of the body. A receiving coupling is coupled to or included as part of the head. A plurality of tabs are defined on the end and extending radially therefrom. A corresponding plurality of flanges are defined in the receiving coupling and extending radially inward therefrom. The end is arranged and configured to engage the receiving coupling by capture of the plurality of tabs by the corresponding plurality of flanges. A lock locks the plurality of tabs with respect to the plurality of flanges.
F21L 4/04 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés en ce qu'une partie du boîtier de la source lumineuse est fixée de façon réglable sur le reste du dispositif
F21L 4/08 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés caractérisés par des moyens pour recharger sur place les accumulateurs ou les piles
F21V 17/12 - Fixation des parties constitutives des dispositifs d'éclairage, p.ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques par vissage
F21W 131/40 - Utilisation ou application des dispositifs ou des systèmes d'éclairage, non prévues dans les groupes Éclairage pour un usage industriel, commercial, récréatif ou militaire
