William A Watkins

US Patent:

7135023, Nov 14, 2006

Filed:

Jul 2, 2004

Appl. No.:

10/884207

Inventors:

William T. Watkins - Davisburg MI, US
Gary Wade - Linden MI, US

International Classification:

A61B 17/58

US Classification:

606 65

Abstract:

A compression bone screw device for fixating a fractured bone. The device includes a constant compression lag screw, a side plate having a moveable rollerball for receipt of the lag screw and a compression member engageable with the lag screw and rollerball to impart a constant compressive force across the bone fracture.

US Patent:

7137249, Nov 21, 2006

Filed:

Aug 12, 2004

Appl. No.:

10/710922

Inventors:

John Li - Canton MI, US
William Watkins - Toledo OH, US
Christian Goralski, Jr. - St. Paul MN, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/10

US Classification:

60301, 60274, 60285, 60297, 4232132, 4232135, 422171, 422177, 502252, 502261, 502324, 502325

Abstract:

The present invention provides a method of removing harmful gases from an automobile exhaust. The method of the invention comprises contacting a thermally stable NOtrap composition with a first exhaust gas mixture at a temperature of at least 200 C. The first exhaust gas mixture includes exhaust gases from an internal combustion engine operating in a fuel-lean condition. After, NOhas been absorbed onto the NOabsorber material, the NOtrap composition is then contacted with a second exhaust gas composition. In this step, the second exhaust gas mixture includes exhaust gases from an internal combustion engine operating in a fuel-rich condition. The present invention also provides the NOtrap composition used in the method. The NOtrap of the invention includes a precious metal, a NOabsorber material, an oxide that inhibits the decrease in NOstoring ability of the NOtrap composition, and a support material.

US Patent:

7622095, Nov 24, 2009

Filed:

Jun 20, 2005

Appl. No.:

11/156898

Inventors:

John Li - Canton MI, US
Christian Goralski, Jr. - St. Paul MN, US
William Watkins - Toledo OH, US
George Graham - Ann Arbor MI, US
Harendra Gandhi - West Bloomfield MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

B01D 53/94
B01J 23/02
B01J 23/46

US Classification:

4232132, 4232135, 4232391, 4232453, 423247, 502325, 502328, 502340, 60274, 60282, 60299, 60302

Abstract:

A lean NOtrap composition. The lean NOtrap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NOtrap composition provides high NOstorage efficiency and high NOconversion efficiency when incorporated in a lean NOtrap. A method of removing harmful gases using the lean NOtrap composition is also described.

US Patent:

7749474, Jul 6, 2010

Filed:

Jun 20, 2005

Appl. No.:

11/157192

Inventors:

John Li - Canton MI, US
William Watkins - Toledo OH, US
Christian Goralski, Jr. - St. Paul MN, US
Harendra Gandhi - West Bloomfield MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

B01D 53/65
B01J 23/00
B01J 23/58

US Classification:

4232135, 502328, 502325

Abstract:

A lean NOtrap composition. The lean NOtrap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NOtrap composition provides high NOstorage efficiency and high NOconversion efficiency when incorporated in a lean NOtrap. A method of removing harmful gases using the lean NOtrap composition is also described.

US Patent:

20030159435, Aug 28, 2003

Filed:

Nov 22, 2002

Appl. No.:

10/301939

Inventors:

Amy Berris - Royal Oak MI, US
Jun Li - Canton MI, US
Mohinder Chattha - Northville MI, US
William Watkins - Toledo OH, US

International Classification:

B01J023/02
F01N003/10
F01N003/00
B01J038/38
B01J023/06
B01J020/34

US Classification:

060/295000, 502/340000, 060/285000, 060/301000

Abstract:

The present invention disclose a sulfur oxide trap that may be used to improve efficiency of a nitrogen oxide trap. Sulfur oxide has a deleterious effect on the performance of nitrogen oxide traps. The sulfur oxide trap of the present invention, comprises a monolithic substrate which is over-coated with an aluminum oxide layer and a mixed oxide layer of calcium oxide and magnesium oxide. In another embodiment of the invention, the sulfur oxide trap is integrated with a nitrogen oxide trap by coating the catalyst contained within a nitrogen oxide trap with a mixed oxide layer of calcium oxide and magnesium oxide. In each embodiment of the invention, the sulfur oxide trap can be regenerated by heating at elevated temperature for a short time period.

US Patent:

20030211020, Nov 13, 2003

Filed:

Jun 17, 2003

Appl. No.:

10/463658

Inventors:

V. Rao - Bloomfield Twp. MI, US
Harry Cikanek - Northville MI, US
William Watkins - Toledo OH, US

International Classification:

F01N003/28
B01D053/88
B01D053/94

US Classification:

422/180000, 422/177000

Abstract:

An automotive exhaust gas noise attenuating device which treats exhaust gas emissions, the device having (a) a ceramic substrate for passing an automotive exhaust stream therethrough, the substrate having (i) an inlet face and an outlet face with a plurality of aligned thin porous channel walls defining channels extending between the faces, and (ii) a three dimensional aspect relationship where depth of the substrate between said faces is generally the same as either the height of width of a face, the substrate having first alternates of the channels blocked at the outlet face and second alternates of the channels blocked at the inlet face to promote lateral flow through the porous walls between each first channel and a multiple of second alternate channels while permitting laminar flow within such channels; (b) hollow shell pellets packed into and trapped in at least some of the first alternate channels which cooperate to define porous Darcy flow surfaces therein; and (c) dolomitic carbonate and catalyzing material on or in the surfaces of the channel walls and Darcy flow surfaces.

US Patent:

20040082470, Apr 29, 2004

Filed:

Oct 24, 2002

Appl. No.:

10/065497

Inventors:

Haren Gandhi - West Bloomfield MI, US
Jun Li - Canton MI, US
Joseph Theis - Rockwood MI, US
Ronald Hurley - Plymouth MI, US
William Watkins - Toledo OH, US

International Classification:

B01J023/00

US Classification:

502/325000

Abstract:

A catalyst system to provide emission reductions under lean and stoichiometric conditions. The catalyst system comprises a forward catalyst having a first cerium-free zone including oxides of aluminum, alkali metals and alkaline earth metals and precious metals and a second zone with a lower loading of precious metals, oxides of aluminum, alkali metals or alkaline earth metals. This forward catalyst stores NOx emissions under lean conditions for subsequent reduction and converts HC, CO and NOx during stoichiometric operation. The second downstream catalyst includes precious metals, reduces emissions under stoichiometric conditions, and stores any residual NOx emitted from the first catalyst for subsequent reduction. In another embodiment, a forward catalyst has top and bottom layers designed to reduce emissions under lean conditions. In this embodiment, a second downstream catalyst is used to reduce emissions under stoichiometric conditions. In yet another catalyst, multiple zones are created within a single catalyst.

US Patent:

20060105909, May 18, 2006

Filed:

Jan 24, 2006

Appl. No.:

11/275686

Inventors:

Amy Berris - Royal Oak MI, US
Jun Li - Canton MI, US
Mohinder Chattha - Northville MI, US
William Watkins - Toledo OH, US

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC - Dearborn MI

International Classification:

B01J 23/58

US Classification:

502328000

Abstract:

The present invention disclose a sulfur oxide trap that may be used to improve efficiency of a nitrogen oxide trap. Sulfur oxide has a deleterious effect on the performance of nitrogen oxide traps. The sulfur oxide trap of the present invention, comprises a monolithic substrate which is over-coated with an aluminum oxide layer and a mixed oxide layer of calcium oxide and magnesium oxide. In another embodiment of the invention, the sulfur oxide trap is integrated with a nitrogen oxide trap by coating the catalyst contained within a nitrogen oxide trap with a mixed oxide layer of calcium oxide and magnesium oxide. In each embodiment of the invention, the sulfur oxide trap can be regenerated by heating at elevated temperature for a short time period.

Address:

5301 Trousdale Dr, Nashville, TN 37220

VIN:

1N4AL21E67C110079

Make:

NISSAN

Model:

ALTIMA

Year:

2007