Way cover improvements
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United States of America Patent
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Mar 11, 2008
Grant Date -
Oct 12, 2006
app pub date -
Apr 8, 2004
filing date -
Apr 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A way cover section is shaped with a continuous lateral arc by pre-stressing so that its top panel has a radius in its top panel from one side panel of the cover section to the other. A wiper at the leading edge of the cover sections that may also serve as a bumper. The wiper has an elastomeric wiper section at one end and an elastomeric bumper section at the other end, with an intermediate section of a harder and more lubricious material that fits on a rolled over edge of the cover section to which the wiper is attached.
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