Patents by Inventor John Hiemstra

John Hiemstra 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).

  • Patent number: 9273585
    Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: March 1, 2016
    Assignee: Donaldson Company, Inc.
    Inventors: John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert, Wayne M. Wagner, Todd R. Taubert, Derek Hiemstra, Scott Peters
  • Publication number: 20150107231
    Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.
    Type: Application
    Filed: June 24, 2014
    Publication date: April 23, 2015
    Inventors: John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert, Wayne M. Wagner, Todd R. Taubert
  • Patent number: 8776502
    Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: July 15, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert, Wayne M. Wagner, Todd R. Taubert
  • Patent number: 8061129
    Abstract: An exhaust system for use with a diesel engine includes a diesel particulate filter configured to capture particulate matter exhausted from the diesel engine, a first sensor operable to detect a particulate matter accumulation level within the diesel particulate filter, and a second sensor operable to detect an ambient temperature of an environment surrounding the diesel particulate filter. The exhaust system also includes a control module electrically coupled to the first sensor, the second sensor, and the diesel particulate filter. The control module is operable to adjust a first regeneration threshold based on the detected ambient temperature. The control module is also operable to initiate regeneration of the diesel particulate filter when the detected particulate matter accumulation level reaches the first regeneration threshold.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: November 22, 2011
    Assignee: Thermo King Corporation and Donaldson Company, Inc.
    Inventors: Jill N. Irlbeck, Erich Albert Lucht, John Hiemstra, Allan T. Hovda, John Jacob Shaw, Gary Reeves, Greg Truckenbrod, Wenzhong Zhang, John Wiese, Eivind Stenersen, Scott Peters, Derek Hiemstra, Josh Kundert
  • Publication number: 20100192548
    Abstract: An exhaust system for use with a diesel engine includes a diesel particulate filter configured to capture particulate matter exhausted from the diesel engine, a first sensor operable to detect a particulate matter accumulation level within the diesel particulate filter, and a second sensor operable to detect an ambient temperature of an environment surrounding the diesel particulate filter. The exhaust system also includes a control module electrically coupled to the first sensor, the second sensor, and the diesel particulate filter. The control module is operable to adjust a first regeneration threshold based on the detected ambient temperature. The control module is also operable to initiate regeneration of the diesel particulate filter when the detected particulate matter accumulation level reaches the first regeneration threshold.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Inventors: Jill N. Irlbeck, Erich Albert Lucht, John Hiemstra, Allan T. Hovda, John Jacob Shaw, Gary Reeves, Greg Truckenbrod, Wenzhong Zhang, John Wiese, Eivind Stenersen, Scott Peters, Derek Hiemstra, Josh Kundert
  • Publication number: 20100139247
    Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.
    Type: Application
    Filed: July 1, 2009
    Publication date: June 10, 2010
    Inventors: John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Gary Dale Reeves, Josh Kundert, Wayne M. Wagner, Todd R. Taubert
  • Publication number: 20080245039
    Abstract: An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems.
    Type: Application
    Filed: November 13, 2007
    Publication date: October 9, 2008
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Steve Anderson, Jared Blaisdell, John Belisle, John Herman, John Hiemstra, Gary D. Reeves, Wayne M. Wagner
  • Patent number: 7294162
    Abstract: An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: November 13, 2007
    Assignee: Donaldson Company, Inc.
    Inventors: Steve Anderson, Jared Blaisdell, John Belisle, John Herman, John Hiemstra, Gary D. Reeves, Wayne M. Wagner
  • Publication number: 20050126138
    Abstract: An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems.
    Type: Application
    Filed: November 1, 2004
    Publication date: June 16, 2005
    Inventors: Steve Anderson, Jared Blaisdell, John Belisle, John Herman, John Hiemstra, Gary Reeves, Wayne Wagner
  • Patent number: 6354398
    Abstract: A muffler is described for muffling both positive power and compression brake type engine retarders. The muffler includes an outer shell defining an internal volume. A first, inner, perforated wall is spaced from the outer shell and defines a first, annular, volume therebetween. A first volume of packing material is positioned within the annular volume. An inlet tube is oriented within the internal volume. In certain embodiments, the inner perforated wall circumscribes at least a portion of the inlet tube, and extends a distance of at least 25% of the axial length of the outer wall. Both single and dual muffler systems are described. Methods of use and operation are also provided.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: March 12, 2002
    Assignee: Donaldson Company, Inc.
    Inventors: Theodore G. Angelo, John Hamrin, Eivind Stenersen, John Hiemstra, Wayne M. Wagner, Ted J. Wiegandt
  • Patent number: 6082487
    Abstract: A muffler is described for muffling both positive power and compression brake type engine retarders. The muffler includes an outer shell defining an internal volume. A first, inner, perforated wall is spaced from the outer shell and defines a first, annular, volume therebetween. A first volume of packing material is positioned within the annular volume. An inlet tube is oriented within the internal volume. In certain embodiments, the inner perforated wall circumscribes at least a portion of the inlet tube, and extends a distance of at least 25% of the axial length of the outer wall. Both single and dual muffler systems are described. Methods of use and operation are also provided.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 4, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Theodore G. Angelo, John Hamrin, Eivind Stenersen, John Hiemstra, Wayne M. Wagner, Ted J. Wiegandt