Title: Resilient sealing ring

Abstract: An improved sealing ring for forming socket-type pipe joints. The ring according to the present invention has an elongate cross-section having a bulbous leading end portion and a trailing end portion having a pair of fins extending towards the respective sealing surfaces. The sealing ring provides a seal which is effective to seal a joint against internal and infiltration pressures.

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Inventors: Wilson, Ralph

Application Number: 927293
Filing Date: 1978-07-24
Publication_date: 1980-01-08
Assignee:
Primary Class(es): 277/616 277/626, 285/110, 285/230, 285/231, 285/345, 285/369
Other Classes:
US Patent Ref:

2565923	Aug, 1951	Hrdlicka	285/110.
2914345	Nov, 1959	Osborn	285/110.
3135519	Jun, 1964	Ligon et al.	285/231.
3684317	Aug, 1972	Kazienko et al.	285/345.

Other Refs: 564484654454Ad.70704

Feb, 1958	BE
Feb, 1965	BE
Jan, 1959	FR

Primary Examiner: Ward, Jr., Robert S.
Assistant Examiner:
Attorney: Nissen; J. Harold