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US 6,554,325 B1Granted
Pipe fitting and method for the production thereof
AssigneeHobas Engineering AG
InventorJosef Knauder
Life of this patent
Estimating the term…
Abstract
The invention relates to a pipe fitting, in particular for connecting waste pipes, especially pipes consisting of glass fiber-reinforced plastic.
Claims11
Tube coupling with:
- a) a tube-like manchette (10) of glass-fiber-reinforced plastic,
- b) a seal (12) made of a rubber elastic material covering the manchette (10) on the inside wherein
- c) the seal (12) has at least one sealing lip (14.1, 14.2) at each axial end projecting radiaily inwardly to the manchette, characterized in that
- d) the corresponding surface sections (10i, 12a) of the seal (12) and the manchette (10) are connected to each other with material-fit by chemical crosslinking, wherein the seal (12) is thermally heated on its outer surface to a temperature that will break up the carbon chains of the sealing material.
1 more element
Dependencies are inferred from the claim text.