US 11,912,221 B2
Actuator devices and assemblies for automotive safety devices
Francois Peremarty, Salt Lake City, UT (US); Jeff Kida, Layton, UT (US); Brent Alan Parks, Castle Rock, CO (US); Alan Ralph Larsen, Layton, UT (US); Lutz Staack, Dachau (DE); and Sven Hoffmann, Dachau (DE)
Assigned to Autoliv ASP, Inc., Ogden, UT (US)
Filed by Autoliv ASP, Inc., Ogden, UT (US)
Filed on Dec. 5, 2019, as Appl. No. 16/705,026.
Prior Publication US 2021/0170970 A1, Jun. 10, 2021
Int. Cl. B60R 21/017 (2006.01); B60R 21/16 (2006.01); B60R 21/01 (2006.01)
CPC B60R 21/017 (2013.01) [B60R 21/16 (2013.01); B60R 2021/01211 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An actuator device comprising:
an actuator cup comprising a first end and a second end, the actuator cup defining a single storage chamber containing a pyrotechnic material to produce gas; and
at least one electrical connection coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material;
a coolant disposed within the single storage chamber of the actuator cup,
wherein the second end of the actuator cup comprises a concave surface before actuation of the pyrotechnic material and during the actuation of the pyrotechnic material the second end transitions from the concave surface to a convex surface, and wherein the gas is contained within the single storage chamber after actuation of the pyrotechnic material and the actuator cup maintains its integrity during the actuation.