Patent ID: 7165772

Claim:
A self-locking seal ring comprising: a ring body having first and second ends, said ring body having first and second side edges, inner and outer annular surfaces, and each of said first and second ends terminating in an end surface; a tab end segment provided on said first end of said ring body comprising a stepped down portion from said first side edge; a lock tab provided on said stepped down portion of said tab end segment, said stepped down portion of said tab end segment extending to said first side edge and said lock tab having a surface flush with the end surface of said first end; and a channel end segment having a lock channel provided on said second end of said ring body for receiving said lock tab, said second end having a step down portion from said second side edge and said lock channel formed in said step down portion, said lock channel being L-shaped with a first leg parallel with and spaced from said inner and outer annular surfaces terminating before said second end surface and a second leg extending from an end of said first leg adjacent a shoulder from which the stepped down portion begins on said second end at right angles to said first leg and exiting through said outer annular surface, said first leg of said lock channel having side walls substantially parallel to the inner and outer annular surfaces.