US 11,851,195 B2
Shape memory alloy based spring activated ball lock and actuator pin release systems and methods
Vinod Kumar Shivalinga, Bangalore (IN); and Vasantha Kumara Jnanegowda, Bangalore (IN)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by GOODRICH CORPORATION, Charlotte, NC (US)
Filed on Jul. 5, 2022, as Appl. No. 17/857,943.
Claims priority of application No. 202241012188 (IN), filed on Mar. 7, 2022.
Prior Publication US 2023/0278712 A1, Sep. 7, 2023
Int. Cl. B64D 25/14 (2006.01); F03G 7/06 (2006.01)
CPC B64D 25/14 (2013.01) [F03G 7/064 (2021.08); F03G 7/0631 (2021.08); F03G 7/06145 (2021.08)] 20 Claims
OG exemplary drawing
 
1. A release system for an evacuation slide assembly of an aircraft, the release system comprising:
a blowout panel; and
a first actuator comprising a first housing, a first shape memory alloy spring, a first compression spring, and a first spindle;
wherein the first shape memory alloy spring is configured to bias the first spindle to retract into the first housing in response to being electrically energized to deploy the blowout panel.