Forgiving profile pipe gasket
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 12, 1987
Grant Date -
N/A
app pub date -
Aug 29, 1986
filing date -
Aug 29, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A gasket particularly suited for providing a leak resistant, deflection tolerant seal for a bell and spigot type of pipe coupling is provided. The gasket comprises a rubber web having a plurality of identical sealing ribs projecting radially inward in axially spaced relation. Each rib has an enlarged tapered base portion and a narrow finger portion which inclines inwardly and axially therefrom in cantilever fashion and which terminates in a tip spaced radially from the base of an axially adjacent rib. The finger portions are deflected into engagement with their adjacent sealing ribs when the spigot portion of one pipe is inserted axially into the bell portion of the other in which the gasket is mounted. The sealing ring prevent leakage even when the coupled pipes are misaligned slightly.
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Family
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Cited Art Landscape
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