Patent ID: 9605672
Date: 2017-03-28
CPC Classifications: B29C,B29K,B29L,F04B,F16J

Claim:
1. A reciprocating-rod seal comprising a one-piece rigid support and a one-piece elastomeric body bonded thereto; wherein: the rigid support comprises a cylindrical retaining wall forming an OD surface of the seal, the cylindrical retaining wall having a hinged fluidside end section; the elastomeric body comprises: the notch separates an ID fluidside portion of the elastomeric body from an OD fluidside portion of the elastomeric body, and the ID fluidside portion forms a sealing lip; the groove separates an ID airside portion of the elastomeric body from an OD airside portion of the elastomeric body, and the ID airside portion forms a wiping lip; and the hinged fluidside end section abuts the OD fluidside portion of the elastomeric body to bound the OD fluidside portion opposite the notch, the hinged fluidside end section having a thickness that is less than a thickness of the retaining wall, the hinged fluidside end section being bent radially inwardly from an outermost portion of the cylindrical retaining wall, wherein the hinged fluidside end section includes a straight outermost edge that extends radially inwardly from the outermost portion of the cylindrical retaining wall and forms a sharp corner that is exposed relative to the elastomeric body.