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US 6,192,920 B1Granted
Chain link float valve
OwnerLance W. Hellermaninventor
Life of this patent
Estimating the term…
Abstract
A valve for maintaining a given level of liquid in a tank, reservoir, or other container having a liquid-gas interface. Said valve being actuated by a float that rises and falls along with the liquid in the container. Said valve float actuates a series of valves in sequence wherein the higher the float rises, the more valve ports are opened allowing a higher flow rate through the valve.
Claims2
A regulating valve for maintaining the liquid level in a vessel, tank, or other container comprising;
- a top outer contaimnent bowl portion having an inlet port to allow liquid to flow into said bowl, an attachment port for an inlet flow dispersing deflector, an outlet port to allow liquid to flow out of said bowl, an attachment port for a discharge tube to direct liquid to said outlet port, and a common edge for attachment to a bottom outer containment bowl portion;
- said discharge tube having a plurality of openings to allow communication between said outer containment bowl portions and said outlet port in the top outer containment bowl portion, said discharge tube having a fluid shield means disposed therein to reduce erosion of said discharge tube by inlet fluid flow;
- a float, free to move within said outer containment bowl portions and disposed around said discharge tube, a fleible connector having a pair of ends, one end being attached to said float and the other end attached to said discharge tube, said flexible connector having means for sequentially opening and closing said plurality of openings in said discharge tube as said float moves along said discharge tube in response to changes in the liquid level in said outer containment bowl portions;
- said bottom outer containment bowl portion being joined at a common edge with said top outer containment portion, having a means for sealing said top outer containment portion to said bottom outer containment bowl portion, and a port dispersed in said bottom outer containment portion for draining and relieving internal pressure prior to disassembly of said top outer containment bowl portion and said bottom outer containment portion;
- and wherein,
- said inlet flow deflector preventing flow from impinging directly on said float member.
3 more elements
Dependencies are inferred from the claim text.