Patent ID: 9714713
Date: 2017-07-25
CPC Classifications: F16J

Claim:
1. A seal ring, comprising: one or more exterior surfaces extending between a first outer axial end of the seal ring to a seal flange, the seal flange positioned adjacent to a second outer axial end of the seal ring and extending radially outward from the one or more exterior surfaces to an outer diameter of the seal ring; an outer surface of the seal flange forming an annular sealing band, the annular sealing band extending radially along the second outer axial end of the seal ring and positioned adjacent to the outer diameter of the seal ring; an inclined seal ramp formed by one or more of the one or more exterior surfaces of the seal ring, the seal ramp extending outwardly from a first end of the seal ramp proximate to the first outer axial end of the seal ring to a second end of the seal ramp positioned adjacent to the seal flange; the seal ramp including a first frictional load surface positioned adjacent to the first end of the seal ramp, the first frictional load surface configured to form a frictional, sealing contact interface between the first frictional load surface and an elastomeric seal compressed into contact with the inclined seal ramp when the elastomeric seal is in a loaded state; wherein the seal ramp includes a second surface positioned between the first frictional load surface of the seal ramp and the seal flange, wherein the second surface is a smooth surface having a surface roughness which is lower than a surface roughness of the first frictional load surface; and wherein the first frictional load surface includes a first end and a second end, a plurality of raised ridges between the first end and the second end, and a substantially flat surface between two adjacent raised ridges of the plurality of raised ridges, and the second end of the first frictional load surface includes a raised annular ridge that is part of the first frictional load surface, and wherein the raised annular ridge forms a barrier at an interface between the first frictional load surface and the second surface, and increases friction at the interface as well as resistance to slippage and loss of sealing contact between the first frictional load surface and the elastomeric seal.