This novel face shield/window is designed to provide all the protective qualities of traditional OSHA approved PPE face shields. Most critically, however, it also facilitates the creation of a protective Dynamic Ingress Barrier to prevent fine particles and bioaerosols from crossing the face shield plane and transport them away from the often breached and problematic periphery of mask/respirator protective zones. Integral to this process, the novel design enhances a particle's flocculant properties by disrupting the structural integrity of the corona virus electrostatic double layer, and reducing its electrokinetic potential before accelerating it into the airspace. Increasing its ability to flocculate with active viral aerosols, and subsequently settle out of the airspace for cleaning, or captive via a filter.

A chinstrap connector (10) for a safety helmet (100) has a receptacle for attaching a chinstrap (201) to the chinstrap connector and a stud (12) for attachment of the chinstrap connector to the helmet. The stud is formed by at least two spaced stud retainers (13a, 13b) protruding from a body of the chinstrap connector. The body has a through-hole (14) that opens in the space between the stud retainers and a pin (15) which is placeable through the through-hole into the space to restrict a movement of the stud retainers toward each other. The invention helps facilitating the attachment of a chinstrap to a safety helmet and allows for retrofitting a safety helmet with a chinstrap.

Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

The invention features methods and devices for controlling bleeding from blood vessels that may be damaged as a result of trauma or impact with an object, such as a bullet or shrapnel. The device may be wearable by a user and include one or more components, such as wound sealant and multiple inflatable balloons/bladders. The device may be integrated into a garment, e.g., a vest, jacket, trousers, or full body suit. Once triggered (automatically or manually), the device may be used to deliver wound sealant to a wound site and/or pressure to the wound site by selective inflation of one or more balloons over exsanguinating blood vessels that may be damaged, thereby stopping or minimizing the bleeding. Alternatively, or in addition, the device may be used to stabilize a wounded wearer for, e.g., transportation purposes, or to provide buoyancy. Devices of the invention may also be used as a blood pressure monitor, as a massaging device, and as a breast pump. Devices and methods of the invention may also be used for repairing or stabilizing machines, such as vehicles (e.g., automobiles and boats).

Provided is a light attached to a helmet where the light does not move when a face shield of the helmet is rotated up or down.

A protective helmet includes a shell, which defines a bottom opening and an internal cavity for receiving the wearer's head. The shell further includes a brim with a central opening defined in the brim. An attachment mechanism for securing an accessory to the shell includes one or more openings defined through the brim on either side of the central opening, wherein each of the openings includes a larger diameter portion and a smaller diameter portion, which are separated by a detent. Each opening receives a respective boss of the accessory, which can be selectively advanced from the larger diameter portion to the small diameter portion of the opening. Furthermore, the attachment mechanism includes a slot defined in and along the edge of the shell, with the slot corresponding with the central opening defined in the brim, such that the slot is configured to receive a projection extending from the accessory.

A protective helmet includes a shell, which defines a bottom opening and an internal cavity for receiving the wearer's head. The shell further includes a brim with a central opening defined in the brim. An attachment mechanism for securing an accessory to the shell includes one or more openings defined through the brim on either side of the central opening, wherein each of the openings includes a larger diameter portion and a smaller diameter portion, which are separated by a detent. Each opening receives a respective boss of the accessory, which can be selectively advanced from the larger diameter portion to the small diameter portion of the opening. Furthermore, the attachment mechanism includes a slot defined in and along the edge of the shell, with the slot corresponding with the central opening defined in the brim, such that the slot is configured to receive a projection extending from the accessory.

Methods, apparatuses, and systems for detecting internal defects of a protective headgear are provided. An example apparatus may include a protective headgear, an actuator element integrated within the protective headgear, a sensor element integrated within the protective headgear, and a processor element electronically coupled to the actuator element and the sensor element. In some examples, the processor element is configured to cause the actuator element to generate a first ultrasonic wave, wherein the first ultrasonic wave is propagated in the protective headgear, and receive a first output from the sensor element in response to the first ultrasonic wave.

A signaling device intended to be worn by a moving user such as a rider of a two-wheel vehicle providing improved visibility on the part of other road users through the provision of a light source at a greater height than is conventional for such vehicles comprises an accelerometer taking measurements along three orthogonal axes, a rechargeable battery pack, a first light source, wireless communication means for transmitting an alert signal and a control unit which activates the light source above a particular deceleration or braking threshold, activates the communication means at a higher deceleration or accident threshold and activates the communication means when a number of switchovers between acceleration and deceleration is equal to or higher than a third threshold.

A pressure sensing system for measuring pressure acting between a user's head and a protective helmet includes a flexible article that is configured to fit between a wearable protective article and a body part of a user. The system further includes a pressure sensor array comprising a plurality of pressure sensors secured to the flexible article. The system may include a data acquisition module configured to provide data from the pressure sensor array to a computer having a display that provides pressure data to a user.