Recovery Engineering, Inc.

Brian F Sullivan

Richard D Hembree

David E Carmein

Richard D Hembre

A faucet-mounted water treatment device including a flow totalizer and an end-of-life indicator cooperating with the totalizer to tell the user when it is necessary to replace the filter cartridge. End-of-life indication is provided by a valve which stops flow after a predetermined volume has been filtered and by a rotating screen which shows the amount of useful life remaining in the filter cartridge.

Faucet-mounted water treatment device

A water treatment device including an arrangement having mechanisms for mechanically totaling the volume of water filtered and for indicating when the replaceable filter cartridge has reached the end of its useful life. End-of-life indication is provided by a valve mechanism for stopping flow after a predetermined volume has been filtered. The arrangement includes a novel mechanism for resetting the flow totalization mechanism. The preferred water treatment device is faucet mounted and also includes a novel flow bypass design.

Water treatment device with volume totalization valve

A manually operable water purification system which includes (i) a first container having an open end and an outlet orifice, (ii) a filter operably positioned within the first container for filtering contaminated water placed within the first container as the contaminated water is forced toward the outlet orifice in the first container, (iii) a porous body of biocidally effective material operably positioned within the first container for disinfecting the filtered water as the filtered water is forced toward the outlet orifice in the first container, (iv) a plunger sealably receivable within the first container through the open end for forcing contaminated water retained within the first container through the filter and the porous body of biocidally effective material, and (v) a passageway through the plunger provided with a check valve for abating formation of a vacuum within the first container as the plunger is withdrawn from the first container.

Portable water purification system

A water purification system including both a filter and a body of biocidally active material for microbiologically purifying biologically contaminated water. The system provides for the production of microbiologically purified water during both upstroke and downstroke of the plunger and includes a brush which can be reciprocated within the system for cleaning the filter.

Growing community of inventors

Minneapolis, MN, United States of America

Brian F Sullivan