Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 21, 2023
Patent Application Number
16965345
Date Filed
January 22, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
There is proposed an annular seal for a pipe coupling, comprising, a lower portion beatable within an upwardly open annular groove in the pipe coupling, an upper portion having an upwardly facing abutment surface, a depending skirt and a stiffening ring. The depending skirt is configured for engagement over a circular upstand of the pipe coupling, which is located inwardly of the annular groove. The stiffening ring is located within the upper portion of the annular seal, and includes an annular portion that is generally parallel with and spaced apart from the abutment surface and at least one circumferential leg depending from the annular portion that provides reinforcement for the depending leg.
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