Patent ID: 9561775
Date: 2017-02-07
CPC Classifications: B60R

Claim:
1. An air bag having a tri-state vent, in an initial state the vent is configured to be closed, the vent in a medial state configured to be at least partially open or fully open as the air bag is starting to inflate, permitting some inflation gas to exit through the vent and the vent in a final state configured to be at least partially closed or fully closed as the air bag continues to inflate, and wherein the vent includes a first vent opening which is located in a portion of the air bag, the vent includes a flap secured onto the air bag on one side of the first vent opening, in the initial state, the flap is configured to lie across the first vent opening to close the vent, the air bag being configured to permit pressurized gas to press upon the flap and the flap being configured to move through the first vent opening in response to this pressure to partially open or fully open the vent.