US 11,754,185 B1
Metal O-ring seal
Mark S. Whitlow, Columbia, SC (US); James S. Hicks, Clinton, SC (US); Florent Ledrappier, St. Paul Trois Chateaux (FR); Jean-Francois Juliaa, Montelimar (FR); and Christophe Darles, Venejan (FR)
Assigned to Technetics Group LLC, Charlotte, NC (US)
Filed by Technetics Group LLC, Charlotte, NC (US)
Filed on Aug. 18, 2021, as Appl. No. 17/405,630.
Claims priority of provisional application 63/069,520, filed on Aug. 24, 2020.
Int. Cl. F16J 15/3284 (2016.01)
CPC F16J 15/3284 (2013.01) 19 Claims
OG exemplary drawing
 
1. A metal O-ring comprising,
a metal tube formed by a sidewall;
the sidewall comprising:
an inner surface having a constant inner diameter;
an outer surface having a plurality of outer diameters between a maximum outer diameter and a minimum outer diameter, wherein the outer surface of the sidewall is machined to form a plurality of opposed pairs of facets to increase a resiliency of the metal O-ring such that the sidewall along the plurality of opposed pairs of facets has a plurality of thicknesses between a maximum thickness and a minimum thickness, wherein the outer surface comprises at least the plurality of facets and a pair of opposed seal interfaces.