Expansion tank with a predictive sensor
AssigneeWessels Company
InventorJames Fuller
Life of this patent
Estimating the term…
Abstract
An expansion tank which comprises a tank having a predetermined volume capacity; an expandable elastomeric bladder in the tank, partitioning tank volume into a liquid-containing portion for holding liquid and a gas-containing portion for holding a gas under a pressure that defines a normal pressurized gas volume when the liquid-containing portion holds a predetermined liquid volume; and a proximity sensor mounted to the tank at the gas-containing portion thereof and adapted to emit an alarm signal when volume of the gas-containing portion is reduced.
Claims6
An expansion tank for a hydronic system which comprises
- a tank having a predetermined volume capacity;
- an expandable elastomeric bladder suspended in the tank, partitioning tank volume into a liquid-containing portion defined by the bladder for holding liquid and a gas-containing portion defined by the tank together with the bladder for holding a gas under a pressure;
- and
- a proximity sensor mounted to the tank in the gas-containing portion thereof and configured to emit an alarm signal when the expanded bladder occupies more than 40 percent of total tank volume.
A hydronics system which includes an expansion tank having an expandable elastomeric bladder suspended therewithin and partitioning tank volume into a liquid-containing portion for holding liquid and a gas-containing portion for holding a gas, and a proximity sensor for said elastomeric bladder mounted in the tank and configured to emit an alarm signal when volume of the gas-containing portion is reduced by a predetermined amount as a result of expansion of the elastomeric bladder.
Dependencies are inferred from the claim text.