Patent ID: 11904796
Assignee: JOYSON SAFETY SYSTEMS ACQUISITION LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A seatbelt pretensioner for a seat belt system of a vehicle, the pretensioner comprising:
a cable connected to the seatbelt at a first end of the cable;
an outer cylinder, wherein a second end of the cable is located within the outer cylinder;
an inner cylinder contained inside the outer cylinder configured to house a gas generator and the second end of the cable;
wherein the inner cylinder includes radial holes configured to allow gases produced by the gas generator to exit the inner cylinder and provide pressure for driving the inner cylinder in a pretensioning direction;
a sealing ring located between the outer cylinder and the inner cylinder, wherein the sealing ring is configured to provide a seal to prevent the gases from passing; and
a deflector shield located adjacent to the radial holes, wherein the deflector shield is located radially outward of the inner cylinder and is configured to deflect the gases away from the sealing ring as the gas exits the inner cylinder.