Cylindrical tube for a working cylinder, and method for producing the same
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United States of America Patent
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Issued Date -
Jun 8, 2006
app pub date -
Mar 12, 2004
filing date -
Mar 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cylinder barrel for a fluid power cylinder comprising an inner tube (12) of thermoplastic synthetic resin and an outer tube (14) of fiber reinforced synthetic thermoplastic resin radially surrounding the inner tube (12) and being coaxially arranged, an intermediate layer (16) being placed between the inner tube (12) and the outer tube (14) to provide a firm join between the two tubes (12 and 14). There is a provision such that between the inner tube (12) and the outer tube (14) an intermediate layer (16) is arranged to ensure a firm join between the two tubes (12 and 14). The invention also relates to a method for the production of a cylinder barrel for a fluid power cylinder, in which in sequence an inner tube (12) of thermoplastic synthetic resin and a coaxially arranged outer tube (14) radially surrounding the inner tube and manufactured of fiber reinforced thermoplastic synthetic resin is extruded. An intermediate layer (16) is applied between the inner tube (12) and the outer tube (14) to provide a firm connection between the two tubes (12 and 14).
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