Pipe union
AssigneeDeutsches Brennstoffinstitut Freiberg
InventorsWolfgang Hubner, Wilhelm Fasshauer
Life of this patent
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Abstract
A pair of pipes have respective end portions one of which is received within the other and defines therewith an annular clearance. Two axially spaced sealing elements are sealingly accommodated in the clearance, and an opening in the outer one of the end portions communicates with the clearance intermediate these sealing elements. A body of hardened material, which was admitted in flowable state via the passage, is accommodated in and fills the clearance intermediate the sealing elements to thereby unite the pipes in stress-transmitting contact with the end portions.
Claims13
A rigid pipe union, particularly for large-diameter pipes which are subject to high interior pressures, comprising a pair of pipes having respective male and female end portions, the male end portion being of a substantially smaller outer diameter than the inner diameter of said female portion and being received within said female portion and defining therewith a relatively large annular clearance;
- a pair of sealing elements sealingly accommodated in said clearance and being spaced from one another in axial direction of said clearance;
- passage means communicating with said clearance intermediate said sealing elements;
- and a rigid body of hardened material admitted in flowable state via said passage means, accommodated in and filling said clearance intermediate said sealing elements and thereby rigidly uniting said pipes in stress-transmitting contact with said end portions thereof.
Dependencies are inferred from the claim text.