Invention Grant
US08905440B2 Grooved-ended resilient expansion joint and method of resiliently joining together a pair of grooved-ended pipes 有权
沟槽弹性膨胀接头和弹性接合在一起的一对带槽端管道的方法

Grooved-ended resilient expansion joint and method of resiliently joining together a pair of grooved-ended pipes
Abstract:
A grooved-ended resilient expansion joint is disclosed. The expansion joint has a resilient expansion member with a central resilient portion and two resilient axially disposed cylindrical ends. Each cylindrical end has a radially outwardly raised distal cylindrical gasket portion with at least one inside shoulder having an inner diameter sized substantially the same as an outer diameter of a pipe to be joined. Each cylindrical end also has a neck portion between the central portion and the gasket portion that is sized to receive a grooved-ended pipe nipple.
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