US 12,312,070 B2
Hydraulic energy retention
John Robert Wittmaak, Jr., Newark, TX (US); Joseph Lee Spaeth, Fort Worth, TX (US); and Marc Wayne Kinard, Corinth, TX (US)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Jun. 14, 2023, as Appl. No. 18/334,846.
Prior Publication US 2024/0417067 A1, Dec. 19, 2024
Int. Cl. B64C 13/40 (2006.01); F15B 21/14 (2006.01); B64C 29/00 (2006.01)
CPC B64C 13/40 (2013.01) [F15B 21/14 (2013.01); B64C 29/0033 (2013.01); F15B 2201/205 (2013.01); F15B 2211/625 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hydraulic energy retention system, the system comprising:
a body with a piston separating a hydraulic fluid from a pressurized gas;
a discharge port in fluid communication with the hydraulic fluid; and
a stop operable to an engaged position to block movement of the piston past the stop and toward the discharge port;
wherein the stop, in the engaged position, allows the piston to move away from the discharge port.