Devices and methods for water purification are provided. An improved demister(70) for removing liquid or other particles from steam is disclosed. The demister can have adjustable outlets. In other embodiments, a demister apparatus is placed, at least partially, inside a boiler apparatus(310). Additionally, a filter flow indicator(401) that provides an optical indication of the efficiency of a water filter is also provided. The filter flow indicator has a viewable side passage that connects the input and output sides of a filter unit. A weighted object, such as a ball(440), can move up and down the side passage in response to the pressure differential in the filter system. The user can determine the status of the filter by viewing the location of the weighted object in the side passage. Additionally , a device and method of adding various minerals back to purified water in order to improve the flavor of the water is described. The device and method involve the use of a ground mineral mixture, typically chosen from minerals(230,240,250) that are common in natural springs. Pure water that runs through the mineral filter apparatus can take up some of the minerals, thus creating water that, although free from unhealthy contamiants, tastes like natural spring water.

Water purification system

A diaphragm metering pump suitable for metering an effervescent gas The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve A displaceable diaphragm member defines a boundary of the product chamber The diaphragm member is capable of being reciprocated to cause pumping displacements A discharge side is disposed downstream from the outlet valve A passageway is disposed in fluid communication between the discharge side and the product chamber A valve is disposed in the passageway The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime

Effervescent gas bleeder apparatus

A technique is provided for pumping fluids in a subterranean wellbore. A submersible pumping system can be deployed in a wellbore for moving desired fluids within the wellbore. The pumping system energizes the desired fluid movement by reciprocating a working fluid between expandable members.

Submersible pumping system

Systems and methods are provided for heating and manipulating a fluid to heat the fluid, evaporate water from the fluid, concentrate the fluid, separate the fluid into fractions; and/or pasteurize the fluid, comprising a closed-loop heating subsystem coupled to a primary fluid-to-fluid heat exchanger, and one or more fluid manipulation subsystems also coupled to the primary fluid-to-fluid heat exchanger.

Methods and systems for heating and manipulating fluids

Embodiments of the invention provide systems and methods for water purification. The unit can include a boiler chamber, a degasser, and a demister.

Water processing apparatus

A compact distilled water system for home, marine, and laboratory use which includes a closed circuit that provides high pressure water for dispensing water to remote locations and that also creates, in conjunction with an eductor, a partial vacuum in the evaporator tank to permit boiling and steam generation therein below atmospheric pressure

A pump, for moving a pumped fluid using a pumping fluid, comprising an outer housing defining an interior volume. A compressible main tube, having an interior space, is located within the outer housing. Inlet and exit valves, both having internal check valves, are in communication with the interior space of the compressible main tube. The outer housing is selectively filled with pressurized pumping fluid through a drive intake to compress the main tube and force pumped fluid contained therein out through the exit valve. The pressurized pumping fluid is then released through a bleeder valve to relieve pressure upon the main tube, allowing it to expand, and causing it to draw pumped fluid into its interior space through the inlet valve. Reiteration of these steps is controlled by a solenoid valve which selectively allows or prevents flow of the pumping fluid through the drive intake into the internal volume of the outer housing.

Douglas E. Sutter

Papers

Water purification system

Fluid operated pump