Elevator load bearing assembly having a jacket with multiple polymer compositions
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United States of America Patent
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Jan 17, 2017
Grant Date -
Dec 4, 2008
app pub date -
Oct 27, 2005
filing date -
Oct 27, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An elevator load bearing assembly (30) includes a jacket (34) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members (32) are at least partially surrounded by a first portion (36) comprising a first polymer composition. A second portion (38) establishes at least one exterior surface (40) of the jacket (34) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket (34). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket (34).
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