Enhanced sprinkler valving apparatus and method
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United States of America Patent
Stats
-
Jun 15, 2004
Grant Date -
N/A
app pub date -
Nov 26, 2002
filing date -
Nov 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sprinkler valving apparatus and method are provided. An irrigation system has a plurality of valves designed to be electrically activated by a control unit. Each valve may have a first diaphragm that is flexible to control irrigation water flow through the valve. Each of the valves may have a solenoid isolated from irrigation water within the valve by a second diaphragm. The first and second diaphragms are separated by an interior divider with an orifice that can be blocked or unblocked via flexure of the second diaphragm to trigger motion of the first diaphragm. The second diaphragm is actuated by a magnetically actuatable plunger of the solenoid, which extends through an aperture of an interior retainer to reach the second diaphragm. The second diaphragm has a peripheral ring to ensure that it is movable even when negative outlet pressure is applied to the valve.
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Cited Art Landscape
Patent Citation Ranking
- 37 Citation Count
- F16K Class
- 94.70 % this patent is cited more than
- 21 Age