Multi-linked seal assembly having friction-reducing layer
AssigneeThe Metraflex Company
InventorJames R. Richter
Life of this patent
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Abstract
A annular seal assembly having a friction-reducing layer, such as wire mesh, on the inner surface that is in contact with a pipe, whereby the friction-reducing layer decreases the coefficient of friction between the pipe and the seal assembly is decreased so that the seal is not dislodged from the wall when the pipe is pushed through the seal assembly.
Claims7
A method of reducing the friction between an elastomeric seal member and a pipe extending through an annular space opening in a wall comprising:
- placing a wire mesh between said seal assembly and the pipe;
- and
- introducing the seal member between the pipe and the wall opening;
- compress said seal member such that it extrudes through said wire mesh into contact with said pipe.
A method of reducing the friction between an elastomeric seal member and a pipe extending through an annular space opening in a wall comprising:
- placing a friction reducing layer having openings therethrough between said seal member and the pipe;
- and
- introducing the seal member between the pipe and the wall opening;
- compressing said seal member such that it extrudes through said openings of said friction reducing layer into contact with said pipe.
Dependencies are inferred from the claim text.