Riser tube with slotted ratchet gear for pop-up irrigation sprinklers
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United States of America Patent
Stats
-
Mar 11, 2003
Grant Date -
Jun 6, 2002
app pub date -
Aug 12, 2001
filing date -
Aug 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pop-up sprinkler of the type that includes a riser that moves upwardly out of a sprinkler housing when water pressure is applied and that allows manual adjustment of the angular orientation of the riser with respect to the housing to adjust angular orientation of the spray from the sprinkler, and provides for such angular adjustment by having a toothed flange associated with the riser in the housing which engages tabs associated with the housing, provides for longer life of the toothed flange and/or the tabs by providing slots extending radially inwardly in the toothed flange to reduce its rigidity to the extent that the teeth and/or tabs do not wear as quickly.
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Cited Art Landscape
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