David A Emmons

US Patent:

6360032, Mar 19, 2002

Filed:

Feb 18, 2000

Appl. No.:

09/507520

Inventors:

John G. Berger - St. Paul MN 55108
David J. Emmons - Plymouth MN 55441

International Classification:

G02B 626

US Classification:

385 16, 385 20, 385 24, 385140

Abstract:

An optical switch and attenuator in which any waveguide in an input waveguide bundle may be selectively optically aligned or misaligned with any waveguide in an output waveguide bundle. The waveguide bundles are attached to beams that translate the bundles through non-parallel arcs. The device provides high-performance switching and attenuation of any number of input and output waveguides.

US Patent:

6423224, Jul 23, 2002

Filed:

Mar 15, 1999

Appl. No.:

09/268223

Inventors:

John D. Tanner - Plymouth MN
David J. Emmons - Plymouth MN
Erik G. Orwoll - Minnetonka MN

Assignee:

The Procter Gamble Company - Cincinnati OH

International Classification:

B01D 2412

US Classification:

210247, 210269, 210273, 210274

Abstract:

A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.

US Patent:

6602410, Aug 5, 2003

Filed:

Nov 14, 2000

Appl. No.:

09/712464

Inventors:

John D. Tanner - Plymouth MN
David J. Emmons - Plymouth MN
Ward William Ostendorf - West Chester OH
Kathleen Grieshop Baier - Cincinnati OH
Jesus Velazquez - West Chester OH
Christy Ann Olson - Little Rock AR
Philip Frank Souter - Northumberland, GB
Colin Ure - Tyne Wear, GB

Assignee:

The Procter Gamble Comapny - Cincinnati OH

International Classification:

C02F 156

US Classification:

210201, 210266, 210282, 210474, 210489, 210728, 210730, 210734, 210738

Abstract:

A kit for purifying water comprises a first container for receiving untreated water, and a second container for receiving purified water and having a dispensing spigot. A water purification composition, when mixed with water in the first container, produces partially purified water having solid matter. A first filter held in a filter holder at an upper end of the second container removes the solid matter when the partially purified water is poured from the first container. A second filter in the second container comprises carbon.

US Patent:

6649045, Nov 18, 2003

Filed:

May 21, 2002

Appl. No.:

10/153299

Inventors:

John D. Tanner - Plymouth MN
David J. Emmons - Plymouth MN
Erik G. Orwoll - Minnetonka MN

Assignee:

PUR Water Purification Products, Inc. - Cincinnati OH

International Classification:

B01D 2412

US Classification:

210 85, 210 94, 210121, 210464, 210473, 222 36, 116273

Abstract:

A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.

US Patent:

6881327, Apr 19, 2005

Filed:

Nov 18, 2003

Appl. No.:

10/717190

Inventors:

John D. Tanner - Plymouth MN, US
David J. Emmons - Plymouth MN, US
Erik G. Orwoll - Minnetonka MN, US

Assignee:

Pur Water Purification Products - Cincinnati OH

International Classification:

B01D035/143

US Classification:

210 85, 210 87, 210121, 210247, 210282, 210474, 210 94, 222 36, 116228, 116273

Abstract:

A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.

US Patent:

7000894, Feb 21, 2006

Filed:

Apr 25, 2003

Appl. No.:

10/424200

Inventors:

Judd Dylan Olson - Minnetonka MN, US
David James Emmons - Plymouth MN, US
John Paul Boros - Maple Lake MN, US
Donald Stephen Bretl - West Chester OH, US
Alan Joseph Mitchell - Evansville IN, US
Todd L. Rose - Evansville IN, US

Assignee:

Pur Water Purification Products, Inc. - Cincinnati OH

International Classification:

F16L 29/02

US Classification:

2511491, 137594

Abstract:

In the treatment of water, an end piece is connected to a treatment cartridge housing and inserted into an appliance having bypass, inlet, and outlet valves. The end piece has an end piece wall from which an inlet fitting, outlet fitting, and protrusion extend. The inlet fittings, outlet fittings, protrusion, and cartridge housing each have a longitudinal axis. The inlet and outlet fittings have a cam surface for actuating the inlet and outlet valves, respectively. Further, the cam surfaces of the inlet and outlet fittings are angled and vectored in relation to their respective longitudinal axis. The protrusion is shaped for actuating the bypass valve.

US Patent:

7441664, Oct 28, 2008

Filed:

Sep 18, 2003

Appl. No.:

10/665948

Inventors:

John D. Tanner - Plymouth MN, US
David James Emmons - Plymouth MN, US

Assignee:

PUR Water Purification Products Inc. - Cincinnati OH

International Classification:

B01D 35/00
B01D 35/28
B01D 27/00

US Classification:

210436, 210437, 210444, 210472, 2105101

Abstract:

A cartridge for treating water, the cartridge capable of releasably engaging a water treatment device. The cartridge includes a housing, an inlet for introducing untreated water into the cartridge, an outlet port for egress of treated water from the cartridge, and a treatment media for treating untreated water The treatment media is in fluid communication with the inlet and the outlet port. The cartridge further includes a first tube having an inside surface, an outside surface, a proximal end, and a distal end, where the inside surface and/or the outside surface is a sealing surface. The cartridge further includes a second tube having an inside surface, an outside surface, a proximal end, and a distal end, where the inside surface and/or the outside surface is a sealing surface. The first tube extends from the housing and surrounds the outlet part. At least a portion of the first tube or the second tube surrounds the other such that a gap is formed between the first tube and the second tube.

US Patent:

7610932, Nov 3, 2009

Filed:

Dec 1, 2005

Appl. No.:

11/291385

Inventors:

Judd Dylan Olson - Minnetonka MN, US
David James Emmons - Plymouth MN, US
John Paul Boros - Maple Lake MN, US
Donald Stephen Bretl - West Chester OH, US
Alan Joseph Mitchell - Evansville IN, US
Todd L Rose - Evansville IN, US

Assignee:

Whirlpool Corporation - Benton Harbor MI

International Classification:

F16L 29/02

US Classification:

137594, 2511491, 251251

Abstract:

In the treatment of water, an end piece is connected to a treatment cartridge housing and inserted into an appliance having bypass, inlet, and outlet valves. The end piece has an end piece wall from which an inlet fitting, outlet fitting, and protrusion extend. The inlet fittings, outlet fittings, protrusion, and cartridge housing each have a longitudinal axis. The inlet and outlet fittings have a cam surface for actuating the inlet and outlet valves, respectively. Further, the cam surfaces of the inlet and outlet fittings are angled and vectored in relation to their respective longitudinal axis. The protrusion is shaped for actuating the bypass valve.