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1. WO2002040909 - SEALING RING FOR CONNECTING TWO TELESCOPICALLY INSERTABLE CONCRETE COMPONENTS

Publication Number WO/2002/040909
Publication Date 23.05.2002
International Application No. PCT/SE2001/002466
International Filing Date 08.11.2001
Chapter 2 Demand Filed 08.05.2002
IPC
F16L 21/03 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
21Joints with sleeve or socket
02with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
03placed in the socket before connection
CPC
B28B 21/563
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
21Methods or machines specially adapted for the production of tubular articles
56incorporating reinforcements ; or inserts
563Gaskets
F16L 21/03
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
21Joints with sleeve or socket
02with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
03placed in the socket before connection
Applicants
  • FORSHEDA AB [SE]/[SE] (AllExceptUS)
  • CAVKA, Elvir [SE]/[SE] (UsOnly)
Inventors
  • CAVKA, Elvir
Agents
  • AWAPATENT AB
Priority Data
0004110-310.11.2000SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) SEALING RING FOR CONNECTING TWO TELESCOPICALLY INSERTABLE CONCRETE COMPONENTS
(FR) JOINT D'ETANCHEITE SERVANT A ACCOUPLER DEUX ELEMENTS EN BETON A EMBOITEMENT TELESCOPIQUE
Abstract
(EN)
A sealing ring (1) for sealing an annular gap between a concrete pipe socket and a concrete pipe spigot end is adapted to be mounted on a mould ring intended for casting of a concrete pipe comprising a socket so as to be fixed in the socket by said casting. The sealing ring is made in one piece by means of co-extrusion of a soft rubber material and a hard rubber material. The soft rubber material has a hardness of 30-40 IRHD and forms a radially inner sealing layer (6), which is intended to abut against the mould ring during said casting and to abut sealingly against the spigot end during use of the sealing ring (1). The hard rubber material forms a second layer (7) located radially outside the radially inner sealing layer.
(FR)
Joint d'étanchéité (1) servant à remplir un espace annulaire entre les parties d'extrémité mâle et femelle de canalisations en béton et conçu pour être monté sur le moule de coulage de la canalisation en béton présentant la partie femelle, de manière à être fixé dans ladite partie femelle par ce coulage. Ce joint d'étanchéité est fabriqué monobloc par co-extrusion d'un matériau de caoutchouc mou et d'un matériau de caoutchouc dur. Le caoutchouc mou possède une dureté de 30-40 IRHD et forme une couche d'étanchéité intérieure radiale (6) devant venir en butée contre le moule pendant le coulage et contre l'extrémité mâle pendant la mise en application de ce joint d'étanchéité (1). Le caoutchouc dur forme une deuxième couche (7) placée en position radiale à l'extérieur de la couche d'étanchéité intérieure radiale (6).
Also published as
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