Cuno, Inc.

Mark R O'Brien

Raymond M Petrucci

Edward C Giordano

Bruce G Taylor

Mark S Barre

Michael S Newton

A filter device for use in a residential water supply system, or the like. The device includes a container having an enclosed cavity, and includes a filter unit disposed in the cavity. The device includes a two-stage filter having a first radial flow filter subassembly and a second axial flow filter subassembly.

Radial and axial flow stage filter device

A filter device for use in a domestic or office water supply system is provided. The device includes a container having an enclosed cavity, and includes a filter unit disposed in the cavity. The device is a two-stage device having a first radial flow filter subassembly and a second axial flow filter subassembly. The radial flow subassembly includes a radially inner perforated tube, a carbon block cylinder over the tube, prefilter cylinders over the carbon block cylinder, and a screen-like wrap layer over the radially outer second prefilter cylinder. The axial flow subassembly has a plurality of axial filter fiber tubes which have a support header wall. The header wall is mounted in a cup-shaped member. The cup-shaped member has a plurality of outlet passage slots at the closed end thereof and supports the header wall at the other end thereof.

Radial and axial flow filter device

The present invention relates, generally, to an apparatus and method for water testing and, more particularly, to a simple dipstick type method for use in comparison with a color chart and suggested courses of action to correct deficiencies in water quality. Briefly stated, a detailed color chart is attached to the side of a container having a plurality of dipsticks contained therein. Each dipstick has disposed thereon a plurality of pads, the total number corresponding to the number of characteristics of the water to be tested. Additionally disclosed is a course of corrective action which may be undertaken by the unskilled user thereby greatly simplifying the process by reducing it to its simplest factors.

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Glastonbury, CT, United States of America

Mark R O'Brien