US 12,291,917 B2
Door management
John Robert Wittmaak, Jr., Newark, TX (US); and Michael Rinehart, Euless, TX (US)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Jul. 26, 2023, as Appl. No. 18/226,431.
Prior Publication US 2025/0034930 A1, Jan. 30, 2025
Int. Cl. E05F 15/643 (2015.01); B64C 1/14 (2006.01); B64C 29/00 (2006.01); E05F 11/04 (2006.01)
CPC E05F 15/643 (2015.01) [B64C 1/1438 (2013.01); B64C 29/0033 (2013.01); E05F 11/04 (2013.01); E05Y 2201/21 (2013.01); E05Y 2201/254 (2013.01); E05Y 2201/26 (2013.01); E05Y 2201/408 (2013.01); E05Y 2900/502 (2013.01); E05Y 2900/531 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A door management system on an aircraft comprising:
a fuselage extending along a longitudinal axis in a fore-aft direction parallel to forward flight;
an opening in a sidewall of the fuselage;
a door mounted on the sidewall to slide in the fore-aft direction between a closed position covering the opening and an open position revealing the opening;
a cable attached to the fuselage via a plurality of pulleys and the door via a connector; and
a speed governor attached to the door, wherein the speed governor is operatively coupled to the cable to limit a velocity of the door as it moves between the open position and the closed position.