Patents by Inventor Kenneth Pawson
Kenneth Pawson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9849424Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.Type: GrantFiled: March 6, 2014Date of Patent: December 26, 2017Assignee: Cummins Emission Solutions Inc.Inventors: Debbie Davidson, Duncan Engeham, Piotr Uban, David Elsey, Z. Gerald Liu, Kenneth Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James Goss
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Patent number: 7614215Abstract: An exhaust treatment packaging apparatus, system, and method includes an elongate exhaust gas passage comprising an inlet for the entrance of flowing exhaust gases and an outlet for the exit of the gases. A catalytic device comprising an inlet and an outlet completely or partially overlaps the passage to reduce the length required for the system. The passage outlet is disposed adjacent the catalytic device inlet, and a flow connector connects the passage outlet to the catalytic device inlet. A particulate filter or other treatment device may be substituted for or added to the catalytic device. A doser disposed upstream of the passage doses an additive which evaporates, mixes, or otherwise undergoes change in the passage before reaching the catalytic device.Type: GrantFiled: September 18, 2006Date of Patent: November 10, 2009Assignee: Cummins Filtration IP, Inc.Inventors: Jay Warner, Kenneth Pawson, Jean-Marc Vasnier
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Patent number: 7550024Abstract: An exhaust aftertreatment assembly and method enables lateral removal of an aftertreatment component from between first and second assembly components for servicing.Type: GrantFiled: September 7, 2006Date of Patent: June 23, 2009Assignee: Cummins Filtration IP, Inc.Inventors: Kenneth Pawson, Jay V. Warner, Patrick M. Pierz, Randolph G. Zoran
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Publication number: 20090056319Abstract: An exhaust aftertreatment system includes an exhaust tube or housing having a catalyzed inner wall catalytically reacting with engine exhaust prior to reaching an aftertreatment element.Type: ApplicationFiled: September 4, 2007Publication date: March 5, 2009Inventors: Jay V. Warner, Kenneth Pawson
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Publication number: 20080066451Abstract: An exhaust treatment packaging apparatus, system, and method includes an elongate exhaust gas passage comprising an inlet for the entrance of flowing exhaust gases and an outlet for the exit of the gases. A catalytic device comprising an inlet and an outlet completely or partially overlaps the passage to reduce the length required for the system. The passage outlet is disposed adjacent the catalytic device inlet, and a flow connector connects the passage outlet to the catalytic device inlet. A particulate filter or other treatment device may be substituted for or added to the catalytic device. A doser disposed upstream of the passage doses an additive which evaporates, mixes, or otherwise undergoes change in the passage before reaching the catalytic device.Type: ApplicationFiled: September 18, 2006Publication date: March 20, 2008Inventors: Jay Warner, Kenneth Pawson, Jean-Marc Vasnier
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Publication number: 20080060351Abstract: An exhaust aftertreatment assembly and method enables lateral removal of an aftertreatment component from between first and second assembly components for servicing.Type: ApplicationFiled: September 7, 2006Publication date: March 13, 2008Inventors: Kenneth Pawson, Jay V. Warner, Patrick M. Pierz, Randolph G. Zoran
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Patent number: 6824743Abstract: An exhaust aftertreatment filter (20) includes a housing (22) extending axially along an axis (28) between distally opposite first and second ends (30 and 32), a first port (34) at the first end of the housing, a second port (36) also at the first end of the housing, one of the first and second ports being an inlet, and the other being an outlet, the housing having an intermediate section (38) between the distally opposite ends, the intermediate section having a given cross sectional area A1 along a sectional plane transverse to the axis, a catalytic exhaust filter element (24) in the intermediate section and entirely filling the cross sectional area A1 except for a smaller cut-out (40) in the exhaust filter element of cross sectional area A2, the exhaust filter element having a cross sectional area A3=A1−A2, a transfer tube (26) extending through the cut-out and communicating with the second port.Type: GrantFiled: May 24, 2000Date of Patent: November 30, 2004Assignee: Fleet Guard, Inc.Inventors: Kenneth Pawson, William C. Haberkamp
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Patent number: 6722124Abstract: A catalytic converter assembly comprises a housing having an exhaust gas inlet and an exhaust gas outlet. A first chamber enclosed by the housing receives incoming exhaust gas and a second chamber contains a catalyst bed. Gas flows from the first chamber to the second chamber through an exhaust gas passage. A perforated enclosure surrounds the gas passage within said first chamber to induce a region of turbulence in the exhaust gas flow within the enclosure immediately upstream of the passage; An injector extends into the enclosure for injecting a reducing agent into the region of turbulence so that the reducing agent is rapidly dispersed and mixed within the exhaust gas flow before reaching the catalyst bed.Type: GrantFiled: May 30, 2002Date of Patent: April 20, 2004Assignee: Nelson Burgess LimitedInventors: Kenneth Pawson, Robert David Godrich
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Publication number: 20030110763Abstract: A catalytic converter assembly comprises a housing having an exhaust gas inlet and an exhaust gas outlet. A first chamber enclosed by the housing receives incoming exhaust gas and a second chamber contains a catalyst bed. Gas flows from the first chamber to the second chamber through an exhaust gas passage. A perforated enclosure surrounds the gas passage within said first chamber to induce a region of turbulence in the exhaust gas flow within the enclosure immediately upstream of the passage; An injector extends into the enclosure for injecting a reducing agent into the region of turbulence so that the reducing agent rapidly dispersed and mixed within the exhaust gas flow before reaching the catalyst bed.Type: ApplicationFiled: May 30, 2002Publication date: June 19, 2003Inventors: Kenneth Pawson, Robert David Godrich
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Patent number: 4961721Abstract: A vehicle in which a prime mover drives a drive shaft via a torque converter and a multi-ratio transmission and in which a drive line independent of the torque converter and multi-ratio transmission is also provided from the prime mover to the drive shaft. The independent drive line provides an overdrive or underdrive function to extend the drive ratio range provided by the multi-ratio transmission and includes a clutch for the engagement of the additional ratio or ratios, and an interlock arrangement to prevent the simultaneous connection of drive to the drive shaft via the multi-ratio transmission and the independent drive line. When an overdrive function is provided, for example the interlock arrangement prevents engagement of the overdrive ratio unless the multi-ratio transmission is operating in its highest ratio when engagement of the overdrive is selected.Type: GrantFiled: March 13, 1989Date of Patent: October 9, 1990Assignee: Massey-Ferguson Services N.V.Inventors: John D. Sword, Kenneth Pawson