A material for reducing exposure to ionizing radiation. One exemplary embodiment comprises a felt layer; a foil layer; a first adhesive film layer disposed between the outer felt layer and the foil layer; a radiation shield layer; a second adhesive film layer disposed between the foil layer and radiation shield layer; and a foam layer disposed on the surface of the radiation shield layer opposite the second adhesive film layer. The material may be installed in commercial aircraft, corporate aircraft, flight suits, helmets, military uniforms, rotary aircraft, spacecraft, and the like. For example, the material disclosed herein may be provided as a headliner in an aircraft, or alternatively may be used to line the entire interior of an aircraft. In one or more embodiments, the material may be secured to a surface using a hook and loop attachment mechanism.

A protective helmet (1) comprises a cap (10) adapted to be fitted on and around the head of a user, wherein the cap (10) comprises an external shell (101) and at least one housing seat (102) for an airbag (2). At the at least one housing seat (102), the external shell (101) comprises at least a movable portion (103; 103a, 103b, 103c), which is permanently connected to a remaining fixed portion of the external shell (101) and is movable between a closed position, in which it covers the at least one housing seat (102) and an airbag (2) housed therein in a deflated condition, and an open position, in which it releases at least partially the at least one housing seat (102) allowing the airbag (2) to expand outside the cap (10) in an inflated condition.

A structural arrangement for a motorcycle helmet the protective shell of which has a recessed cavity in the upper portion forming protrusions, each protrusion having a space for the rack, and an opening; a front cavity receives a rear fairing and has a second lowered cavit with an opening between the protective hull and the internal hull, on the edges of the visors is fastened a rack with teeth actuated by a small engine with gear strategically arranged in each of the outlets of the protrusions, in the protective hull and on one end of the rack, with actuation by buttons on the helmet or devices with electronic controls by means of radio signals, installed both on the helmet and on the motorcycle or even by remote control, and power is supplied by a battery.

A helmet includes a non-contact sensor for a living body, a cap body, and a headband attached to an inner side of the cap body. The headband is provided with a first projection and a second projection on a surface facing a front head portion (FD) of the cap body. The non-contact sensor for the living body includes a first housing having a first surface and a second surface opposing the first surface, a first claw portion provided on the first surface, and a second claw portion provided on the second surface. The first claw portion is brought into contact with and fixed to the first projection, and the second claw portion is brought into contact with and fixed to the second projection.

An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred to the wearable device while an obstruction is between the total station and the reflector. Further, a target can be used to orient a local map of a wearable device to an environment based on a distance between the target and the wearable device.

The present invention relates to security systems and methods for vehicles and/or vehicle users that prevent the theft of vehicles, and/or that guarantee the security of the vehicle user. In order to achieve the above, the system of the present invention has an enabling system that controls the ignition of the vehicle, and/or a device for helmets intended for the monitoring of the security of the user, and makes it possible to determine, for example, whether the user is wearing the helmet and is using the same correctly, or whether the vehicle user has suffered an impact. Specifically, the system of the present invention has an interactive system (mobile device) associated with the user which, depending on the need, signals the enabling system to enable the vehicle ignition, provided that at least one condition is fulfilled, where a condition may be that the interactive system is close to the enabling system and/or emits an alert message to the external device of a third party if any novelty is detected in the helmet device.

A smart head protection gear safety system includes: a head protection gear comprising a shell including outer and inner circumferential surfaces and lateral surfaces, the inner circumferential surface being configured to support one or more pulse oximeter sensors, to be functionally coupled to at least one infrared (IR) sensor, and to be functionally coupled to at least one buckle switch; a transmitter module being disposed inside the head protection gear, the transmitter module being configured to transmit signal outputs from one of the pulse oximeter sensors, the infrared (IR) sensor and the buckle switch to a receiver module, the receiver module being installed on a vehicle, the receiver module being configured to receive the signal output from the transmitter module; and a microcontroller module being configured to activate the vehicle when the receiver module receives the signal output from the transmitter module.

A head protection device includes a head cradle portion and a force transfer/energy absorbing collar portion. The head cradle portion is spaced from adjacent and out of contact with the collar portion in normal operation and in contact with the collar portion upon impact of predetermined force, transferring the force and associated energy around the head cradle portion and dissipating the energy.

A helmet airflow control member includes a plate-like main body arranged on a shell and including a main body rear surface that covers part of a shell outer surface, and at least one passage formation portion arranged on the main body rear surface. A periphery of the main body rear surface includes a first peripheral portion, which is shaped in correspondence with the shell outer surface and closes a space between the main body rear surface and the shell outer surface, and a second peripheral portion, which is spaced apart from the shell outer surface and defines an opening of the space between the main body rear surface and the shell outer surface in cooperation with the shell outer surface. The passage formation portion defines a passage in the space, with the passage extending from the opening into the space and returning from the space to the opening.

A protective device for protecting the cervical spine includes a first damping device having a sheath and a first chamber. The protective device further includes a bracing device. The bracing device is configured to brace, in a damped manner, a pulse-like force transmission, induced by contact of a protective helmet with a first contact surface of the first damping device, to the first damping device, directly or indirectly, against the upper body of a person. A gaseous or liquid or gel-like first damping medium is disposed in the first chamber of the first damping device.