A pipestring () wherein the leading coupling portion () of a first pipe segment () and the trailing coupling portion () of a second pipe segment () are coupled together. A leading seal part () is installed in the leading coupling portion () of the first pipe segment () and a trailing seal part () is installed in the trailing coupling portion () of the second pipe segment (). The seal parts () interface to form a fluid seal between the composite pipe segments (), and also to provide an electrically conductive path between their electrical lines ().
Daniel D. Labrenz - Chula Vista CA, US Daniel J. Funke - San Diego CA, US Donald J. Peterson - Chula Vista CA, US Douglas C. Schenk - Chula Vista CA, US
International Classification:
F16J 15/02 B23P 11/00
US Classification:
277630, 277650, 29428
Abstract:
A gasket () has a retainer () comprising a plurality of balls encapsulated within a matrix of polymeric material (e.g., rubber). The balls are made of hard material (e.g., metal, hard plastic, ceramic, etc.) and prevent over-compression during gasket installation. The polymeric matrix provides the gasket () with a two-dimensional grid of joints or elbows, allowing it to conform to an almost infinite number of different flange surfaces. The matrix can be made of the same material as, and molded at the same time as, the gasket's sealing elements ().