Positive drive cover system
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United States of America Patent
Stats
-
Aug 3, 2004
Grant Date -
Jun 24, 2004
app pub date -
Sep 9, 2002
filing date -
Sep 9, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A swimming pool cover fabric has beads attached to its opposite edges. Each bead is positioned to essentially abut the bead in front to form in effect a segmented rod. A drive mechanism has a sprocket to engage each bead and urge it into and out of the race or slot in a track sized to receive the beads. A reversible motor is connected to drive the sprocket to urge the beads and, in turn, the pool cover fabric between open and closed positions.
First Claim
Family
International Classification(s)
Cited Art Landscape
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