US 12,135,108 B2
Electrostatic discharge mitigation tubing
John Leys, Chaska, MN (US); and Barry L. Gregerson, Excelsior, MN (US)
Assigned to ENTEGRIS, INC., Billerica, MA (US)
Appl. No. 17/613,359
Filed by ENTEGRIS, INC., Billerica, MA (US)
PCT Filed May 12, 2020, PCT No. PCT/US2020/032417
§ 371(c)(1), (2) Date Nov. 22, 2021,
PCT Pub. No. WO2020/236454, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/851,962, filed on May 23, 2019.
Prior Publication US 2022/0221086 A1, Jul. 14, 2022
Int. Cl. F16L 9/14 (2006.01); B32B 1/08 (2006.01); B32B 3/26 (2006.01); B32B 5/18 (2006.01); B32B 15/085 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); F16L 41/02 (2006.01); H05F 1/00 (2006.01)
CPC F16L 9/14 (2013.01) [B32B 1/08 (2013.01); B32B 3/266 (2013.01); B32B 5/18 (2013.01); B32B 15/085 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/322 (2013.01); F16L 41/02 (2013.01); H05F 1/00 (2013.01); B32B 2307/202 (2013.01); B32B 2597/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrostatic discharge mitigation tubing segment comprising a porous non-conductive interior surface and a conductive portion, wherein adjacent conductive portion is configured to transfer electrostatic charge generated by a charged fluid passing through the tubing segment to ground such that electrostatic discharge can be mitigated,
wherein the porous, non-conductive interior surface is defined by a non-conductive polymer portion and the conductive portion comprises one or more stripes of conductive polymer embedded within the non-conductive portion between an interior surface and an exterior surface of the tubing segment, and
further comprising an outer conductive polymer layer in charge transfer contact with the one or more stripes of conductive polymer.