US 12,145,338 B2
Tube/mandrel assemblies
Edward H. Rast, III, Cameron, SC (US); Daniel Green, Orangeburg, SC (US); Dana Barringer, Orangeburg, SC (US); Denise Browne, Orangeburg, SC (US); and Patrick Cooper, Orangeburg, SC (US)
Assigned to Zeus Company LLC, Orangeburg, SC (US)
Filed by Zeus Company Inc., Orangeburg, SC (US)
Filed on Mar. 9, 2022, as Appl. No. 17/690,328.
Claims priority of provisional application 63/160,396, filed on Mar. 12, 2021.
Prior Publication US 2022/0288879 A1, Sep. 15, 2022
Int. Cl. B29D 23/18 (2006.01); B29C 53/38 (2006.01); B29C 53/58 (2006.01); B29C 70/20 (2006.01); B29C 70/30 (2006.01); B29D 23/00 (2006.01); B29C 63/10 (2006.01)
CPC B29D 23/18 (2013.01) [B29C 53/38 (2013.01); B29C 53/58 (2013.01); B29C 70/207 (2013.01); B29C 70/302 (2021.05); B29D 23/001 (2013.01); B29C 63/10 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A tube having an inner surface, an outer surface, and an inner lumen, the tube comprising PTFE with a wall thickness less than 0.0040 inches, wherein the tube has a stress at break above 10,000 psi; and
wherein the inner surface has a COF below 0.07 measured using a tribological test with sliding speeds against a stainless steel plate of 0.030 inches/s to 0.30 inches/s under an axial load of 0.225 lbf; and
wherein the inner surface comprises patterning.