| Clearwater Systems Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20120138517 | USE OF ELECTROMAGNETIC PULSES IN CROSS-FLOW FILTRATION SYSTEMS - A cross-flow filtration system includes a first filter element having a first conduit for receiving a flow of a first aqueous feed stream, a second conduit operable to discharge a flow of first permeate water and a third conduit operable to discharge a flow of first retentate water. The cross-flow filtration system includes a coil assembly disposed about the first conduit. The first coil assembly is operable to subject the first aqueous feed stream to electromagnetic pulses. A second filter element is in fluid communication with the first filter element via the third conduit. The second filter element is operable to receive the first retentate water via the third conduit. A second coil assembly is disposed about the third conduit and is operable to subject the first retentate water to electromagnet pulses. | 06-07-2012 |
| 20090236294 | METHOD AND APPARATUS FOR TREATING FLUIDS - A method and apparatus for treating a fluid to destroy, remove, or reduce undesirable agents, such as microorganisms, particles or ions, contained in the fluid and/or to inhibit the formation of scale are disclosed. | 09-24-2009 |
| 20090229982 | SYSTEM AND METHOD OF GENERATING A RINGING MAGNETIC PULSE FOR THE TREATMENT OF FLOWING LIQUIDS - A method and system of generating a ringing magnetic pulse for the treatment of flowing liquids includes a coil and an SCR coupled in series with the coil to form a first loop. An electronic switch is coupled in series with the coil to form a second loop. An AC voltage signal is applied to the coil having first and second half-cycles. Current is conducted through the first loop during the first half-cycle when the SCR is forward biased while preventing current from conducting through the second loop. Current is conducted through the second loop during a portion of the second half-cycle while current is prevented from conducting through the first loop. Current is interrupted through the second loop during another portion of the second half-cycle upon the coil current reaching a predetermined value to interrupt current flowing through the coil, thereby generating a ringing magnetic pulse. | 09-17-2009 |
| 20090095352 | LARGE SCALE PULSED ENERGY WATER TREATMENT SYSTEM - A flow of fluid such as water is subjected to pulsed energy by dividing the flow into a plurality of divided flows; subjecting each divided flow to pulses of electromagnetic energy; and coalescing the plurality of divided flows into an output flow. A treatment apparatus includes a flow divider apparatus that has a inflow coupler and a plurality of conduits in fluid communication with the inflow coupler. Each conduit has a coil assembly thereon. The apparatus has a outflow coupler that is in fluid communication with each conduit. Coil assemblies on adjacent conduits may be staggered between the inflow coupler and the outflow coupler. The apparatus may include a control circuit for each coil assembly, for generating ringing pulses in the coil assembly. | 04-16-2009 |
| 20090065444 | Use of electromagnetic pulses in cross-flow filtration systems - A fluid feed stream is flowed, subject to electromagnetic pulses, to a filter element via an input feed conduit for the filter element. A coil assembly is disposed about the input feed conduit and an AC power source is connected with the coil assembly. The AC power source has a period including first and second half-cycles of opposing polarities. A switch in series with the coil assembly forms a series connected circuit. A second switch connected with the coil assembly forms a second circuit. A control means closes the first switch and opens the second switch during a first half-cycle of the AC power source. During a second half-cycle, the control means closes and then opens the second switch to produce a first large ringing pulse in the coil assembly. A subsequent pulse may be produced either before or after the first pulse substantially decays. | 03-12-2009 |
