US 11,746,904 B2
Reinforced sealing rings
Matt Svrcek, Redwood City, CA (US); Jodie Prudhomme, San Francisco, CA (US); Jerry DeJong, Union City, CA (US); and Tom Hasler, Woodside, CA (US)
Assigned to Mainspring Energy, Inc., Menlo Park, CA (US)
Filed by Mainspring Energy, Inc., Menlo Park, CA (US)
Filed on Nov. 17, 2021, as Appl. No. 17/528,886.
Application 17/528,886 is a continuation of application No. 16/945,580, filed on Jul. 31, 2020, granted, now 11,193,588.
Application 16/945,580 is a continuation in part of application No. 16/059,933, filed on Aug. 9, 2018, granted, now 10,731,759, issued on Aug. 4, 2020.
Claims priority of provisional application 62/543,282, filed on Aug. 9, 2017.
Claims priority of provisional application 62/543,285, filed on Aug. 9, 2017.
Prior Publication US 2022/0074493 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16J 9/28 (2006.01); F16J 9/16 (2006.01); F16J 15/44 (2006.01); F16J 15/16 (2006.01); F02G 1/053 (2006.01); F16J 15/34 (2006.01)
CPC F16J 9/28 (2013.01) [F02G 1/0535 (2013.01); F16J 9/16 (2013.01); F16J 15/164 (2013.01); F16J 15/34 (2013.01); F16J 15/442 (2013.01); F02G 2253/02 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A piston assembly, comprising:
a piston comprising a circumferential groove that extends around an outer surface of the piston; and
a sealing ring assembly arranged in the circumferential groove, the sealing ring assembly comprising:
at least one ring segment;
a feature reinforcing the at least one ring segment; and
a bonding layer attached to the feature and to the at least one ring segment, the bonding layer pre-fabricated based on a geometry of the feature.