Composite pipe coupling sleeve
AssigneePont-A-Mousson S.A.
InventorsPierre Barbe, Vincent Mignet, Serge Renard
Life of this patent
Estimating the term…
Abstract
A composite sleeve A serves as an impermeable coupling between pipes T1 and T2 having smooth, uniform ends. The sleeve comprises a rigid binding ring B acting as a jacket for a flexible, elastic and reversible collar C, which is attached to the binding ring by a pair of toric retaining rings D which press the collar C internally against the binding ring at zones of contact 13 in proximity to the ends of the binding ring, while creating, between the contact zones, an annular space 14 between the collar and the binding ring. The coupling connects collection pipes used for gravitational sanitary drainage, and is impervious to internal and external pressures.
Claims12
A composite coupling sleeve (A), comprising:
- a) a rigid outer ring (B),
- b) a flexible, elastic, evertable sealing collar (C) coaxially disposed inside said ring, enclosed thereby, and having a circular median projection (5) designed to act as a stop between smooth ends of two pipes (T1, T2) to be joined, and
- c) a pair of toric retaining rings (D) individually pressing said collar internally against said ring at contact zones (13) in proximity to opposite ends of said outer ring to thereby secure said collar to said ring,
- d) wherein, intermediate said contact zones, an annular space (14) is defined between the collar and the outer ring to enable the coupling of pipes over a wide range of diameters.
A composite coupling sleeve (A) comprising:
- a rigid outer ring (B), and a flexible, elastic, evertable sealing collar (C) coaxially disposed inside said ring, enclosed thereby, and having a circular median projection (5) designed to act as a stop between smooth ends of two pipes (T1, T2) to be joined, wherein said collar (C) is attached to said ring by a pair of toric retaining rings (D) pressing said collar internally against said ring in contact zones (13) in proximity to opposite ends of said outer ring, wherein, intermediate said contact zones, an annular space (14 is defined between the collar and the outer ring, and wherein the outer ring comprises a tubular body (1) having end extensions (2) whose inner diameters are greater than the diameter of said tubular body (1), said extensions (2) flaring to the outside so as to form flanges or mouth pieces (3).
A composite coupling sleeve (A) comprising:
- a rigid outer ring (B), and a flexible, elastic, evertable sealing collar (C) coaxially disposed inside said ring, enclosed thereby, and having a circular median projection (5) designed to act as a stop between smooth ends of two pipes (T1, T2) to be joined, wherein said collar (C) is attached to said ring by a pair of toric retaining rings (D) pressing said collar internally against said ring in contact zones (13) in proximity to opposite ends of said outer ring, wherein, intermediate said contact zones, an annular space (14) is defined between the collar and the outer ring, and wherein said sleeve includes channelling means (16, 17) for allowing exterior fluids to penetrate into the annular space (14).
Dependencies are inferred from the claim text.