Abstract: The nose mask is intended to be used during an airborne pandemic. The nose mask is a single triangle/cone shape that covers only the nose, that comes with two ear elastic bands or a single head elastic band for support. The nose mask is designed to be disposable with a filter for better protection and to minimize the passage of aerosols, fluids and airborne pathogen agents or to be made with washable material allowing users to re-use it.

Abstract: A device to provide sterilized and purified breathable air and to disinfect exhaled air and includes a housing having a first and second opening. The housing includes at least one partition having a plurality of holes, and within the housing such that a plurality of compartments is formed between the first opening and the second opening, and at least one ultraviolet (UV) light source positioned in each of the plurality of compartments. The UV light source is UVC LED lights to emit UVC light of a predefined wavelength within the plurality of compartments to sterilize and purify the air while flowing through the housing. The device includes a mask fluidically coupled to the second opening of the housing using a flexible second pipe to provide the purified air. The device includes one-way valves at the second opening of the housing, and two one-way valves at the outlets of the mask.

Abstract: A bone screw is provided including a tubular body and a head as separate parts. The tubular body has a first end, a second end, a tubular wall defining a cavity and a plurality of openings extending through the tubular wall into the cavity. The tubular body also includes a continuous exterior bone thread on an exterior tubular surface of the tubular wall. The continuous exterior bone thread extends for at least one full revolution about the tubular surface. The head defines an inner bore and includes an engagement structure to engage with a driver to advance the bone screw in the bone when a rotating force from the driver is applied to the engagement structure in a first direction, and a connection structure to connect to the tubular body at the first end.

Abstract: One variation of a method—for controlling a breathing mask comprising a flow control module configured to mate to nostrils of a user and comprising an actuator configured to adjust obstruction to airflow out of the flow control module—includes: accessing a wake alarm time; accessing a sleep delay duration; at a first time, receiving an indicator that the user is preparing for sleep; in response to receiving the indicator, triggering the actuator to transition from a minimum-restriction position toward a maximum-restriction position at a second time succeeding the first time by the sleep delay duration, the actuator minimally obstructing airflow out of outlet port in the minimum-restriction position and maximally obstructing airflow out of outlet port in the maximally-restriction position; and, prior to the wake alarm time, triggering the actuator to transition back to the minimum-restriction position.

Abstract: Insect screen assemblies may be configured for attachment to sunglasses having sunglasses frame arms and may include an assembly screen having a plurality of screen openings. A pair of spaced-apart screen attachment devices may include a pair of screen magnets carried by the assembly screen; a pair of sunglasses frame mounts configured for attachment to the sunglasses frame arms, respectively, of the sunglasses; and a pair of frame mount magnets carried by the pair of sunglasses frame mounts, respectively. The pair of screen magnets may magnetically engage the pair of frame mount magnets, respectively, to detachably secure the assembly screen on the sunglasses. Sunglasses with an insect screen assembly are also disclosed.

Abstract: In one aspect, a user-wearable illumination assembly includes eyeglass frames and a headlamp removably coupled to the eyeglass frames. Electrical circuitry may be integrated with the eyeglass frames. The headlamp and the eyeglass frames have mounting structure that cooperate to removably support the headlamp thereon. A light source is disposed within the headlamp and electrical communication between the light source and the electrical circuitry of the eyeglass frames is provided by electrical contacts associated with the mounting structures of the headlamp and eyeglass frames. In another aspect, a user-wearable illumination assembly for use with eyeglass frames includes a clip assembly that is selectively removably couplable to a bridge portion of the eyeglass frames, and a headlamp coupled to the clip assembly. The illumination assembly further includes a battery that is selectively removably couplable to the eyeglass frames and at least one electrical conductor coupling the battery to the headlamp.

Abstract: Embodiments relate to improvements for supplied-air abrasive blast respirators. Embodiments may comprise purified air via filters as a back-up air supply, with the filters typically operating automatically to provide purified air when the supplied air is compromised. Embodiments may locate elements outside of the hood to provide ready access for performing seal checks. Embodiments may incorporate noise reduction elements and/or lens protection elements as well.

Abstract: Embodiments relate generally to a replaceable lens cartridge for use with a face mask, for example a respirator. The cartridge comprises a plurality of molded lenses, each lens sized to extend over one or more eyes of a wearer and typically having a curved shape and a plurality of catches; and a molded carrier mounting the lenses in stacked arrangement, the carrier having a first set of catches receiving the catches on one of the lenses.

Abstract: An underwater exhaust system and method which includes an exhaust valve having a sealing edge, an exhaust outlet for exiting an exhaust gas, and a projection for directing water flow away from the exhaust valve. The exhaust valve includes a valve head and a valve stem, the valve stem being coupled with the valve head. The system and method prevent a siphoning effect, whereby leakage of water into the exhaust valve is minimized or prevented.

Abstract: A spectacle frame mount provides secure, removable positioning of a spectacle frame in a gas mask or full face respirator. A spring wire mount supports the spectacle frame between two legs of a loop. The spring wire mount includes two leg portions that have lower ends which terminate adjacent each other when the mount is in its use position. The two leg portions positively engage an internal portion of the full face mask so that the spectacle frame will be positioned within the interior of the mask at a location such that the spectacles will be properly positioned for use by the person wearing the mask.

Abstract: An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use.

Abstract: An underwater exhaust system includes an exhaust valve with a valve cover operatively coupled thereto. The valve cover is adapted to create an exhaled air pocket on the water interface side of the valve. The exhaled air pocket allows the valve to operate under reduced water resistance. The valve cover includes at least one water inlet passage and at least one exhaust gas opening.

Abstract: The full face flexible oxygen mask for use with flight helmets includes an elastic face seal with an oronasal cone that seals around the nose and mouth of the wearer, and flexible sealing flaps along the perimeter of the face seal to adapt the face piece of the mask to seal against the surface of a flight helmet. The mask face piece has two large sealing surfaces or channels down each side of the mask that overlap and flex to adapt to seal to a variety of flight helmets. The top of the face seal has an inner and outer flap that work together to seal the exposed face visible between the sides of the flight helmet.

Abstract: A personal breathing device for filtering, diffusing, and conditioning air inhaled by a person. The device includes an eyewear frame with an attached nose piece and air-permeable membrane which is positioned to surround the nose and permit normally inhaled volumes of air to pass through the membrane as the air is inhaled, and thereby filter and condition the inhaled air. The device can be conveniently placed on and removed from the face, does not obstruct speech, and is suitable for wearing during a variety of normal daily activities to filter and condition inhaled air. The air permeable membrane can be impregnated with various liquids or other agents to enhance filtering and antimicrobial functions, or to provide cooling, moisturizing, or scenting of the inhaled air. The device can be provided with a detachable air permeable membrane which can be easily replaced as needed.

Abstract: A ventilated mask for outdoor use is provided having a face mask to protect the wearer against insects and flying debris. The mask covers the user's nose, mouth and cheek area, and has a removable visor to provide protection for the eyes as well. The use of a snap in filter for additional protection against dust or other airborne irritants. The filter is held in place on the user's head by a pair of adjustable elastic straps. Finally, a hinged opening is provided in the mask area by the user's mouth to allow the insertion of game calling devices, drink bottles, straws, and the like, without requiring the user to remove the mask.

Abstract: Provided are exemplary embodiments of an underwater breathing exhaust system configured to lower the exhalation, effort and to direct water adjacent an exhaust valve to reduce the likelihood of water entering the system and/or gas free flowing from the system.

Abstract: A modular respirator system has interchangeable facial lenses and body seals such as a full facepiece seal or a hood. A method of conversion from a full facepiece respirator to a hood respirator, or vice versa, is also disclosed. In one embodiment, lens conversion is accomplished without changing the type of body seal. In another embodiment, a breathable gas delivery conduit is connected to the facial lens and interchanged between the body seals together with the facial lens.

Abstract: A smoke mask includes a generally planar breathing filter sized to cover the nose and mouth of a user. The breathing filter may be either dry or moistened, and has a filter efficiency of at least about 95%, meaning that at least about 95% of charge neutralized particles having an approximate size of 0.3 micrometers are removed from air flowing at a rate in a range of about 81 liters per minute to about 89 liters per minute, with a total filter load of at least about 200 milligrams of the particles. A transparent eye shield, which may be either a plastic film or goggles, is attached to the breathing filter. Pressure sensitive adhesive is located on the peripheral edge of one surface of the mask structure for securing the mask to the face of the user.

Abstract: A smoke mask includes a moistened generally planar breathing filter sized to cover the nose and mouth of a user. A transparent eye shield, which may be either a plastic film or goggles, is attached to the breathing filter. Pressure sensitive adhesive is located on the peripheral edge of one surface of the mask structure for securing the mask to the face of the user. A release sheet covers the adhesive so that the adhesive is exposed upon removal of the release sheet. One or more slits in the peripheral edge of the mask enable the mask to adapt to the contour of the face of the user. A pull-apart tab facilitates opening of the mask structure by the user. The smoke mask may be used in combination with a waterproof canister, in which the mask is stored in a wetted and rolled condition. The canister may include threaded halves, or may be sealed by a pull-off cover or a threaded cover.

Abstract: This invention relates to a connecting part of a breathing mask for connecting components such as filter, speech diaphragm, or exhalation valve that is inserted directly into the eye-protecting lens and guarantees easy assembly and disassembly.