Daniel John Duarte

US Patent:

7056419, Jun 6, 2006

Filed:

Sep 6, 2003

Appl. No.:

10/656857

Inventors:

V. S. Meenakshi Sundaram - Burr Ridge IL, US
Daniel Duarte - Clarendon Hills IL, US
Steven Fisher - Lyons IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

D21H 21/06
D21H 23/08

US Classification:

162158, 1621811, 1621812, 162183, 162198

Abstract:

Carbon dioxide may be used to adjust the electrical properties of papermaking compositions. Such papermaking compositions may contain a colloid phase, an aqueous phase, and optionally, pulp fibers. Examples of electrical properties whose values may be adjusted include zeta potential, electrical charge demand, conductivity, and streaming potential. The carbon dioxide may be introduced at many different points in a papermaking process, including calcium carbonate slurry feeds, pulp fiber slurries, diluted pulp fibers slurries, broke, and whitewater. When a value or range of values based upon an electrical property is predetermined, such as an optimal value or range, introduction of carbon dioxide may be used to adjust the value such that it is closer to the predetermined value.

US Patent:

20030157017, Aug 21, 2003

Filed:

Mar 22, 2002

Appl. No.:

10/104760

Inventors:

Daniel Duarte - Clarendon Hills IL, US
Malik Haouchine - Chicago IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

C01B017/22

US Classification:

423/562000

Abstract:

Methods of converting a sulfide in a composition to polysulfide are described, one method comprising the steps of exposing the composition to conditions and for a time sufficient to cause conversion of at least a portion of the sulfide, to polysulfide to form a modified composition; and controlling the conversion to polysulfide by measuring a color parameter of the modified composition.

US Patent:

20040134794, Jul 15, 2004

Filed:

Oct 16, 2003

Appl. No.:

10/686527

Inventors:

Daniel Duarte - Clarendon Hills IL, US
Michel Epiney - Duvernay (Laval), CA

International Classification:

C25D017/00
C25C007/00

US Classification:

205/688000, 204/242000

Abstract:

A system and method for generating polysulfide includes at least one vessel for containing the pulping liquor, and at least one oxidation promoter element including an oxidation promoter adhered by a coating material to a substrate. The oxidation promoter element may be affixed within the vessel or, alternatively, movable between two or more vessels to facilitate polysulfide generation and/or recovery of the oxidation promoter in at least two vessels.

US Patent:

20170079372, Mar 23, 2017

Filed:

Sep 17, 2015

Appl. No.:

14/857622

Inventors:

Daniel Thomas Duarte - Torrance CA, US

International Classification:

A43B 7/14
A43C 11/00
A43C 1/04
A43B 5/06

Abstract:

A shoe that simulates barefoot running having an outer sole having a forefoot portion, a heel portion, and a flexible bridge portion, wherein the flexible bridge portion is curved inwards to be narrower than a foot on both the lateral and medial sides, wherein the flexible bridge conforms to the foot's arch and is lifted off the ground when the shoe is tied onto the foot; a wrap overlay associated with the flexible bridge and having at least a first strap and at least a second strap, which are tied atop a metatarsal area of the foot, such that to suspend the flexible bridge therefrom and provide a 360 degrees wrap of the foot in the arch section of the foot, resulting in both, arch support and the shoe's anchoring to the foot; and, a roomy toe box providing toe splay and facilitating forefoot-striking