Patent ID: 9534715
Date: 2017-01-03
CPC Classifications: F16J,F16L

Claim:
1. An annular gasket comprising: an annular body; a pair of sealing ribs each extending substantially radially inwardly from the annular body and having a sealing ridge at a radially inward end of each of the pair of sealing ribs, each sealing ridge of the pair of sealing ribs including a cylindrical sealing surface at an innermost radial extent in an uncompressed state, each sealing ridge of the pair of sealing ribs including an axially outer drafted edge and an axially inner drafted edge, each sealing surface extending from the axially outer drafted edge to the axially inner drafted edge, each axially outer drafted edge extending axially outward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction, each axially inner drafted edge of the pair of sealing ribs extending axially inward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction, each sealing rib including an axially outer surface, each axially outer drafted edge of the pair of sealing ribs extending from the cylindrical sealing surface to the axially outer surface, each sealing rib increasing in axial thickness from radially outside to radially inside; and at least one center rib extending substantially radially inwardly from the annular body, the at least one center rib having an innermost radial extent closer to the annular body than the innermost radial extent of each of the pair of sealing ribs and having a diameter at the innermost radial extent that is larger than a diameter of the innermost radial extent of each of the pair of sealing ribs.