Title: Socket connection for pipes and pipe elements

Abstract: The invention relates to a connector for joining pipes, particularly of metal, which comprises a socket and a pipe having a smooth end for insertion into the socket. A seal and friction ring inside the socket seals the pipe into the socket and prevents accidental withdrawal. In the present invention retaining elements are embedded in the elastomeric sealing material of which the ring is composed and are axially slidably guided as well as being freely tiltable about an annular bead on the socket.

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Inventors: Seiler, Georg (Munich, DE, US)

Application Number: 017565
Filing Date: 1979-03-05
Publication_date: 1980-10-21
Assignee: Eisenwerke Friedr. Wilh. Duker GmbH & Co. (DE)
Primary Class(es): 285/105 277/615, 277/625, 285/231
Other Classes:
US Patent Ref:

2953398	Sep, 1960	Haugen et al.	285/231.
3384392	May, 1968	Gilchrist	285/105.
3724880	Apr, 1973	Seiler	285/105.
3963298	Jun, 1976	Seiler	285/231.

Other Refs: 223539126066432628727

Jan, 1974	DE
Aug, 1977	DE
Jan, 1978	DE

Primary Examiner: Callaghan, Thomas F.
Assistant Examiner:
Attorney: Whittemore, Hulbert & Belknap