Drip irrigation lines flushing valve
OwnerAbi Zakaiinventor
Life of this patent
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Abstract
A self-closing valve for flushing drip-irrigation lines at the beginning of every irrigation cycle. The valve comprises a housing defining an enclosed space, having an inlet portion mountable to the line end, allowing free communication with the water of the line. The housing comprises an elastic membrane dividing the enclosed space into upstream and downstream compartments with respect to said flow, with a passage communicating between the said compartments. A discharge opening is formed in the upstream compartment. Flow impeding means are associated with said passage for restricting the flow of water from the upstream compartment into the downstream compartment, said flow being effective to flex the membrane in the upstream direction until it closes against the discharge opening.
Claims14
A self-closing valve for flushing drip-irrigation lines comprising a housing defining an enclosed space, and having an inlet portion mountable to the line end, allowing free communication with the water flow through the line, the housing comprising:
- an elastic membrane dividing the enclosed space into upstream and downstream compartments with respect to flow of water from the line;
- passage means comprising an opening formed in the membrane and communicating between the compartments;
- a discharge opening from the upstream compartment;
- flow impeding means associated with the passage means for restricting the flow of water from the upstream compartment into the downstream compartment so that that flow is effective to flex the membrane in the upstream direction;
- and
- means cooperating with the membrane in its upstream flexed state to close against the discharge opening while the passage means continues to communicate between the compartments.
A self-closing valve for flushing drip-irrigation lines comprising a housing defining an enclosed space, and having an inlet portion mountable to the line end, allowing free communication with the water flow through the line, the housing comprising:
- an elastic membrane dividing the enclosed space into upstream and downstream compartments with respect to flow of water from the line;
- a passage means comprising an opening in the membrane and communicating between the compartments;
- a discharge opening from the upstream compartment;
- means directing water flow from the line, through the passage means and into the downstream compartment so that that flow is effective to flex the membrane in the upstream direction;
- and
- means cooperating with the membrane in its upstream flexed state to close against the discharge opening while the passage means continues to communicate between the compartments.
Dependencies are inferred from the claim text.