Elastic roll ring

Details Elastic roll ring Elastic roll ring

1973-10-23

1976-04-20

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG2, 277211, 285344, F16L 1900, F16L 2102

Patent

active

039514200

ABSTRACT:
A roll ring for sealing socket-type joints is provided with a circumferentially extending lip having an abutment surface which is positioned to lie in a plane extending through the circumferential axis of the roll ring. The abutment surface tightly engages the outer circumferential surface of the insertion end of a first pipe subsequent to rotation of the ring against its natural bias about its circumferentially extending axis to position the roll ring on the insertion end. A groove is formed in the roll ring less than 180.degree. distant from a back surface of the lip for the reception of the end of a socket of another pipe so as to position the insertion end for insertion into the socket. A circumferentially extending contact surface is disposed perpendicular to the abutment surface to engage the end of the insertion end and, with the natural bias of the roll ring, aids in rolling the roll ring into the space between the insertion end and socket end as the pipes are joined. The roll ring is constructed such that the lip and groove are disposed in a single plane extending parallel to the outer circumferential surface of the insertion end when the pipes are joined to provide a full width contact of the roll ring with the adjacent surfaces of the socket and insertion ends.

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