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US 4,398,732 AGranted
Sealing ring
AssigneeSchionning & Arve' A/S
InventorJorn Christensen
Life of this patent
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AssigneeSchionning & Arve' A/S
InventorJorn Christensen
Estimating the term…
A sealing ring of an elastic material is adapted to be applied to the spigot end of a pipe under expansion of the diameter of the ring. To obtain a particularly effective seal without any risk of overloading of the elastic material, neither during insertion into a pipe socket, assembling of the pipes nor later on as a consequence of oblique loads on the pipes, the sealing ring has a sealing member which consists of a hose (1) with a solid compression member (2) which is disposed inside the hose and is connected to the hose (1) through a flap (3). The flap has moreover an elongation (4) which can serve as a finger grip for the application of the sealing ring to the spigot end and counteract twisting of the sealing ring when the pipes are assembled.
A sealing ring of an elastic material, intended to be applied to the spigot end of a pipe under expansion of the ring diameter and subsequent insertion into a pipe socket of an adjoining pipe, said sealing ring consisting of a ring-shaped hose in whose cavity there is provided a solid compression member which is connected to the hose, characterized in that the compression member is connected to the hose through a flap which is short in cross-section so that the compression member is disposed as excentrically as possible with respect to the hose which has a thin collapsible wall, said flap having an elongation that extends beyond the hose.
Dependencies are inferred from the claim text.