US 12,216,066 B2
Flexible and/or deformable mechanical elements with radiographic markers
Theodore W. Eastes, Monterey Park, CA (US)
Assigned to Science Applications International Corporation, Reston, VA (US)
Filed by Science Applications International Corporation, Reston, VA (US)
Filed on Sep. 28, 2023, as Appl. No. 18/374,024.
Application 18/374,024 is a continuation of application No. 17/402,339, filed on Aug. 13, 2021, granted, now 11,808,716.
Prior Publication US 2024/0288384 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 23/04 (2018.01); F16J 15/3284 (2016.01); G01N 23/083 (2018.01)
CPC G01N 23/04 (2013.01) [F16J 15/3284 (2013.01); G01N 23/083 (2013.01); G01N 2223/629 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An O-ring comprising:
a cord comprising a polymeric first material, wherein the cord has a circular cross section and is formed into a continuous loop; and
one or more radiographic markers, comprising one or more second materials having one or more radiopacities greater than a radiopacity of the first material, on a surface of the cord.