Patents by Inventor Jason Drost
Jason Drost 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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Publication number: 20140260202Abstract: In one non-limiting embodiment, an apparatus for treating exhaust includes a reductant injector, an aftertreatment component including a NOx reduction catalyst, and a pathway for directing exhaust to the aftertreatment component. The pathway includes a constriction zone within which is positioned a mixing member. The constriction zone begins downstream of the reductant injector and upstream from the aftertreatment component. However, other embodiments, forms and applications are also envisioned.Type: ApplicationFiled: January 9, 2014Publication date: September 18, 2014Applicant: Cummins Inc.Inventors: Mark Bays, Ian A. Package, Upendra Deshmukh, Douglas Mitchell, Jason Drost, Mihai Chiruta, Joseph Brault
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Publication number: 20140245719Abstract: An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor may be positioned in or near the flow of reductant and exhaust to measure the temperature of the reductant and exhaust. A change in temperature over time, such as an increase, decrease, or change in variation amplitude, may indicate the presence of a reductant deposit in the system. Detection of the deposit may initiate a regeneration cycle in which the operating characteristics of the system change to eliminate the reductant deposit to prevent it from hindering the performance of the exhaust aftertreatment system.Type: ApplicationFiled: March 1, 2013Publication date: September 4, 2014Applicant: CUMMINS IP, INC.Inventors: Douglas A. Mitchell, Andrew W. Osburn, Jason Drost, Jim F. Burke, Joseph M. Brault
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Patent number: 8756913Abstract: According to one embodiment, a sensor module includes a sensor probe that has at least two arms coupled together at a central location with each of the at least two arms extending radially outwardly away from the central location. Each of the at least two arms includes one of a plurality of openings and an elongate opening extending radially along the arm. The at least two arms define fluid flow channels therein. The sensor module also includes at least one extractor coupled to the probe. The at least one extractor includes a fluid flow channel that is communicable in fluid receiving communication with fluid flowing through the fluid flow channel of at least one of the at least two arms. Further, the sensor module includes at least one sensor that is communicable in fluid sensing communication with fluid flowing through the at least one extractor.Type: GrantFiled: January 14, 2011Date of Patent: June 24, 2014Assignee: Cummins Filtration IP, Inc.Inventors: Z. Gerald Liu, Achuth Munnannur, Andrew Osburn, Shashidhar Srinivas, Jason Drost, Michael Welp, Robert Nowicki
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Patent number: 8240137Abstract: According to one embodiment, a reductant injection apparatus includes an injector attachment portion to which a reductant injector is coupleable. The apparatus also includes a perforated tubular portion coupled to the injector attachment portion. The perforated tubular portion includes an inlet, an outlet, and a diverging sidewall extending from the inlet to the outlet. Additionally, a plurality of perforations is formed in the sidewall. A reductant spray can be injected into the perforated tubular portion via the inlet. Further, a portion of a bulk exhaust gas stream can be diverted into the perforated tubular portion through the plurality of perforations, through the perforated tubular element, and out of the perforated tubular portion through the plurality of perforations. The portion of exhaust gas stream can then be rejoined with the bulk exhaust gas stream downstream of the perforated tubular portion.Type: GrantFiled: October 27, 2009Date of Patent: August 14, 2012Assignee: Cummins Filtration IP, Inc.Inventors: Z. Gerald Liu, Jim Clerc, Jason Drost, Jim Burke, Mihai Chiruta, Achuth Munnannur
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Publication number: 20120180457Abstract: According to one embodiment, a sensor module includes a sensor probe that has at least two arms coupled together at a central location with each of the at least two arms extending radially outwardly away from the central location. Each of the at least two arms includes one of a plurality of openings and an elongate opening extending radially along the arm. The at least two arms define fluid flow channels therein. The sensor module also includes at least one extractor coupled to the probe. The at least one extractor includes a fluid flow channel that is communicable in fluid receiving communication with fluid flowing through the fluid flow channel of at least one of the at least two arms. Further, the sensor module includes at least one sensor that is communicable in fluid sensing communication with fluid flowing through the at least one extractor.Type: ApplicationFiled: January 14, 2011Publication date: July 19, 2012Applicant: CUMMINS IP, INCInventors: Z. Gerald Liu, Achuth Munnannur, Andrew Osburn, Shashidhar Srinivas, Jason Drost, Michael Welp, Robert Nowicki
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Patent number: 8066792Abstract: According to one representative embodiment, an exhaust aftertreatment component that includes a housing that defines an interior cavity through which exhaust gas is flowable. The housing includes an inner body, an outer body, and a space defined between the inner and outer bodies. The component also includes an insulation pack that is positioned within the space. The insulation pack includes insulation media encapsulated by a flexible fabric. The insulation pack further includes an at least partially rigid member that has a rigidity greater than a rigidity of the insulation media and flexible fabric.Type: GrantFiled: December 3, 2008Date of Patent: November 29, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Aashish Wadke, Scott Lubenow, Chris Cremeens, Jason Drost, Daniel W. Woods
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Patent number: 7976788Abstract: A reductant decomposition reactor for use in exhaust systems is provided that includes a middle tube portion formed with a reductant injector mount, an inlet tube, an outlet tube and a mixer. The inlet tube is formed at a first end of the middle tube portion and the outlet tube is formed at a second end of the middle tube portion and both are configured to create a sealed connection to different portions of the exhaust system. The mixer fits between the middle tube portion and the outlet tube and is configured to decompose the reductant in an exhaust stream. The injector mount comprises a tube like section that connects at a first end to the middle tube portion and at a second end to an injector port of the injector mount, and is configured to reduce recirculation flow patterns in the reactor, create a high velocity flow at an inner surface of the injector mount and thereby reduce the formation of reductant deposits.Type: GrantFiled: October 16, 2008Date of Patent: July 12, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Jason Drost, Diane Boose, Robert Schellin, Achuth Munnannur, Mihai Chiruta
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Publication number: 20110094206Abstract: According to one embodiment, a reductant injection apparatus includes an injector attachment portion to which a reductant injector is coupleable. The apparatus also includes a perforated tubular portion coupled to the injector attachment portion. The perforated tubular portion includes an inlet, an outlet, and a diverging sidewall extending from the inlet to the outlet. Additionally, a plurality of perforations is formed in the sidewall. A reductant spray can be injected into the perforated tubular portion via the inlet. Further, a portion of a bulk exhaust gas stream can be diverted into the perforated tubular portion through the plurality of perforations, through the perforated tubular element, and out of the perforated tubular portion through the plurality of perforations. The portion of exhaust gas stream can then be rejoined with the bulk exhaust gas stream downstream of the perforated tubular portion.Type: ApplicationFiled: October 27, 2009Publication date: April 28, 2011Applicant: CUMMINS FILTRATION IP, INCInventors: Z. Gerald Liu, Jim Clerc, Jason Drost, Jim Burke, Mihai Chiruta, Achuth Munnannur
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Publication number: 20110074150Abstract: According to one embodiment, a flange joint for joining a first pipe to a second pipe includes an adapter coupled to the first pipe. The adapter includes a convex surface. The flange joint also includes a gasket with a first concave surface and a second convex surface. The first concave surface of the gasket is matingly engageable with the convex surface of the adapter. The second convex surface is matingly engageable with the second pipe. The gasket is supported on the first pipe. The flange joint further includes a clamp that includes a concave surface that is matingly engageable with the second pipe to secure the gasket to the adapter.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: CUMMINS IP, INC.Inventors: Jason Drost, Robert Schellin
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Publication number: 20100132322Abstract: According to one representative embodiment, an exhaust aftertreatment component that includes a housing that defines an interior cavity through which exhaust gas is flowable. The housing includes an inner body, an outer body, and a space defined between the inner and outer bodies. The component also includes an insulation pack that is positioned within the space. The insulation pack includes insulation media encapsulated by a flexible fabric. The insulation pack further includes an at least partially rigid member that has a rigidity greater than a rigidity of the insulation media and flexible fabric.Type: ApplicationFiled: December 3, 2008Publication date: June 3, 2010Applicant: Cummins Filtration IP, Inc.Inventors: Aashish Wadke, Scott Lubenow, Chris Cremeens, Jason Drost, Daniel W. Woods
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Publication number: 20100098604Abstract: A reductant decomposition reactor for use in exhaust systems is provided that includes a middle tube portion formed with a reductant injector mount, an inlet tube, an outlet tube and a mixer. The inlet tube is formed at a first end of the middle tube portion and the outlet tube is formed at a second end of the middle tube portion and both are configured to create a sealed connection to different portions of the exhaust system. The mixer fits between the middle tube portion and the outlet tube and is configured to decompose the reductant in an exhaust stream. The injector mount comprises a tube like section that connects at a first end to the middle tube portion and at a second end to an injector port of the injector mount, and is configured to reduce recirculation flow patterns in the reactor, create a high velocity flow at an inner surface of the injector mount and thereby reduce the formation of reductant deposits.Type: ApplicationFiled: October 16, 2008Publication date: April 22, 2010Applicant: CUMMINS FILTRATION IP INC.Inventors: Jason Drost, Diane Boose, Robert Schellin, Achuth Munnannur, Mihai Chiruta
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Publication number: 20100074814Abstract: A reductant decomposition mixer for use in exhaust systems is provided The mixer includes a plurality of mixer bars, a plurality of cross bars and an outer ring. The mixer bars have a plurality of blades and are arranged in parallel to extend in a single direction. The cross bars interlock with the mixer bars from opposing directions and are arranged in parallel to extend in a single direction that is perpendicular to the direction of the mixer bars. The outer ring is connected to the ends of each of the mixer bars and the ends of each of the cross bars.Type: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Applicant: CUMMINS FILTRATION IP INC.Inventor: Jason Drost
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Patent number: 6945333Abstract: A rear-tine roto-tiller with a chassis having a forward end and a rearward end; a set of rotating tines at the rearward end; a set of ground-engaging wheels between the forward end and the tines; and a tine transmission mounted on a substantially vertical shaft at the rearward end with a substantially horizontal shaft holding the tines. The tine transmission is rotatable about the vertical shaft between a first position in which the tines rotate in the same direction as the wheels and a second position in which the tines rotate in a direction opposite the direction of rotation of the wheels, thus allowing easy conversion between SRT mode and CRT mode.Type: GrantFiled: April 14, 2004Date of Patent: September 20, 2005Assignee: Ardisam, Inc.Inventors: Jason A. Drost, Jonathan J. Chartraw