A motor vehicle with a retaining system for the passengers which includes at least one safety belt as well as means for the automatic re-tightening of the safety belt in case of accident danger; the magnitude of the prestress of the safety belt is thereby adjustable by a control system, which is triggered by a sensor with a definite deceleration threshold, as a function of vehicle velocity change per time unit and/or weight of the respectively retained passenger.

A wide belt encircles the outer garments of a driver of a tandem seated vehicle. Vertical loops encircle the wide belt on each side of it, and are in position to encircle a portion of the arms and hands of a rider seated in the rear tandem seat.

A safety net pillow for the prevention of the snapping back of the head of a vehicle passenger having a net stretched on a frame, and leg means attached to the lower portion of the frame for detachably mounting the frame on the back of a seat of the vehicle in such a manner that the net stretched on the frame stands substantially upright.

A safety device for vehicle passengers, of the type in which at least one air bag is inflated responsive to detection of an object in the vehicle path in advance of contact of the vehicle with the object, includes a source of fluid under pressure and a valve, operable responsive to detection of such an object, to connect the source to a line leading to at least one inflatable air bag. A valve mechanism is interposed in the line and normally connects the line to the air bag. An impact detector is...

In a method for protecting passengers in a moving vehicle, radio signals having a predetermined propagation speed and frequency are transmitted from the moving vehicle to an approaching object, such as a second vehicle. Radio signals reflected from the approaching object, and having a different frequency, are received in the moving vehicle. The difference frequency corresponding to the relative speeds between the two vehicles or between the moving vehicle and an object is obtained by utilizing t...

This invention relates to an arrangement permitting passengers in mobile units, such as coaches or trains, to stay both by day and by night in a lower and an upper one of two superposed passenger accommodations (1a, 1b) that are formed by one passenger accommodation (1) being converted into the two superposed passenger accommodations (1a, 1b) by the lowering of a ceiling element (33) which is arranged in a raisable and lowerable fashion in the passenger accommodation (1). To permit enhanced util...

A method and a communications system in which a request for data transmitted by an airborne transmitter over a low-bandwidth air-to-ground communication system uplink and received by a ground-based receiver. The requested data is then transmitted over a high-bandwidth communication system downlink, such as a DBS satellite system downlink, preferably using an MPEG-2 compression technique, and received by an airborne receiver located on the same aircraft as the airborne transmitter. The received r...

A station for a transport system comprising a track, an entry level, a transit level vertically spaced from the entry level and at which vehicles or trains may be stopped and two pairs of lifts arranged one pair on each side of the track, the lifts being arranged so that successive lifts arrive at the transit level on opposite sides of the track. A method of synchronizing the passenger lifts and train arrivals and departures is disclosed.

A system for the protection and safety of cars, passengers and pedestrians is described, adaptable to be installed in automotive vehicles having a gas pedal, a brake pedal and a battery, such as cars, tractors, trailers, trucks, buses, and the like. The system consists of a green light accelerator circuit which is energized when the driver presses the gas pedal, closing the contacts of its relay and lighting up its green light focus and is disenergized when the gas pedal is released opening the ...

A safety system for vehicle driver and passengers includes a bladder or bladders expansible by gaseous pressure fed from a gas reservoir in the event of a collision to protect the driver and passengers. The system also includes an electric switch operable in response to the pressure drop in the gaseous pressure in the reservoir to break electrical connection between the electrical power source and wiring systems leading to various vehicle electrical components to prevent short-circuits in the wi...