US Patent 9434339 Inflatable seat belt with a tethered gas delivery fill tube

A restraint device for restraining an occupant in a vehicle includes a belt, an inflator, a gas guide, and a flexible tether. The belt includes a first layer, a second layer, and a seal between the first and second layers. The first and second layers extend from a first end of the belt to a second end of the belt. The seal cooperates with the first and second layers to form an inflatable portion of the belt. The inflator is operable to provide pressurized gas. The gas guide has a first end placed over an outlet of the inflator and a second end extending into the inflatable portion of the belt. The flexible tether secures the gas guide to the belt.