Expansion joints
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United States of America Patent
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-
Mar 22, 1988
Issued Date -
N/A
app pub date -
Aug 18, 1986
filing date -
Sep 9, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The proximate ends of spaced apart sections of duct systems for fluid media are interconnected by expansion joints having a sleeve of flexible material surrounding and isolating the flow path in the area between the sections. The flexible material consists of at least one reinforcing substrate to which surface layers of a media resisting material having a degree of elasticity are fused and bonded. Each substrate in one embodiment consists of two series of strands oriented to present a criss-cross pattern with the strands of both series diagonally disposed with with respect to the flow path when the material is formed into a sleeve. In another embodiment, there is an additional series of strands which are longitudinal.
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