Patents by Inventor Michael A. Purdy

Michael A. Purdy 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).

  • Publication number: 20250121678
    Abstract: A utility vehicle includes an exhaust assembly fluidly coupled to an engine. Depending on various parameters, such as the size and/or performance of the vehicle, the exhaust assembly is required to meet certain emissions regulations. Such emissions regulations may be met by increasing the temperature within the exhaust assembly, however, at particularly high temperatures, a catalyst of the exhaust assembly may be damaged. Therefore, the exhaust assembly includes various options for cooling portions thereof to remove heat from the assembly.
    Type: Application
    Filed: December 26, 2024
    Publication date: April 17, 2025
    Applicant: Polaris Industries Inc.
    Inventors: Michael A. Purdy, Ryan D. Carlson, Ralph W. Lauzze, III, Ryan M. Lacanne, Jake A. Stafford, Stephen Martin
  • Patent number: 12214654
    Abstract: A utility vehicle includes an exhaust assembly fluidly coupled to an engine. Depending on various parameters, such as the size and/or performance of the vehicle, the exhaust assembly is required to meet certain emissions regulations. Such emissions regulations may be met by increasing the temperature within the exhaust assembly, however, at particularly high temperatures, a catalyst of the exhaust assembly may be damaged. Therefore, the exhaust assembly includes various options for cooling portions thereof to remove heat from the assembly.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: February 4, 2025
    Assignee: Polaris Industries Inc.
    Inventors: Michael A. Purdy, Ryan D. Carlson, Ralph W. Lauzze, III, Ryan M. Lacanne, Jake A. Stafford, Stephen Martin
  • Publication number: 20220355659
    Abstract: A utility vehicle includes an exhaust assembly fluidly coupled to an engine. Depending on various parameters, such as the size and/or performance of the vehicle, the exhaust assembly is required to meet certain emissions regulations. Such emissions regulations may be met by increasing the temperature within the exhaust assembly, however, at particularly high temperatures, a catalyst of the exhaust assembly may be damaged. Therefore, the exhaust assembly includes various options for cooling portions thereof to remove heat from the assembly.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 10, 2022
    Inventors: Michael A. Purdy, Ryan D. Carlson, Ralph W. Lauzze, III, Ryan M. Lacanne, Jake A. Stafford, Stephen Martin
  • Patent number: 10018136
    Abstract: A method for controlling a marine engine for propelling a marine vessel includes receiving user input as a user input device to control acceleration of a marine vessel, detecting a rapid acceleration command based on the user input, and determining an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset. A fuel increase is then determined based on the spark advance offset, and then an increased fuel injection amount is determined by increasing a base fuel injection amount by the fuel increase. Spark and fuel delivery are then controlled for one or more cylinders of the marine engine based on the advanced spark timing and the increased fuel injection amount.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: July 10, 2018
    Assignee: Brunswick Corporation
    Inventors: Steven M. Anschuetz, Michael A. Purdy, Robert Raymond Osthelder, David J. Hilbert
  • Publication number: 20160363061
    Abstract: Systems and methods are for controlling internal combustion engines having a plurality of piston-cylinders that cause rotation of a crankshaft. A crankshaft sensor is configured to sense rotational speed of the crankshaft. A controller is configured to calculate an acceleration for each piston-cylinder based upon the rotational speed of the crankshaft and then balance the accelerations of the respective piston-cylinders by modifying a combustion input to one or more of the piston-cylinders in order to reduce engine vibration.
    Type: Application
    Filed: September 17, 2014
    Publication date: December 15, 2016
    Applicant: BRUNSWICK CORPORATION
    Inventors: Andrew S. Waisanen, Michael A. Purdy, Jeffrey J. Broman
  • Publication number: 20090130929
    Abstract: A water cooled fuel reservoir is provided for a carbureted engine. Water is drawn by a pump from a body of water and caused to flow to a water jacket surrounding a fuel reservoir of the carburetor. The fuel reservoir, or float bowl, stores a quantity of liquid fuel which is cooled by thermal contact with the water in a water jacket of the water reservoir.
    Type: Application
    Filed: May 24, 2007
    Publication date: May 21, 2009
    Inventors: Michael A. Purdy, Eric S. Mueller
  • Patent number: 7066130
    Abstract: A recoil starter has a guide surface with limited polar symmetry about the axis of the pull-rope limiting rotational orientation of the pull-handle in the at-rest position to less than three angular positions.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: June 27, 2006
    Assignees: Tohatsu Corporation, Brunswick Corporation
    Inventors: Michael A. Purdy, Mark T. Lokken, Koichiro Takahashi
  • Patent number: 7056169
    Abstract: A connection device for a marine propulsion system is provided in which a selective locking mechanism automatically connects or disconnects two components of the marine propulsion system together in response to rotation of a tube and a rod. This relative rotation of the tube and rod is caused automatically when one of the components of the marine propulsion system is rotated relative to the other component.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: June 6, 2006
    Assignee: Brunswick Corporation
    Inventors: Mark T. Lokken, Michael A. Purdy, Mark R. Hanson, Ronald L. Bates
  • Publication number: 20030143241
    Abstract: Antigen and antibody vaccine composition effective in preventing hepatitis E virus (HEV) infection are disclosed. The antigen composition includes a peptide corresponding to a carboxyl terminal end region of the capsid protein encoded by the second open reading frame 2 of the HEV genome. The composition is effective in preventing HEV infection after vaccination. The antibody composition contains an antibody effective to block HEV infection of human primary hepatocytes in culture.
    Type: Application
    Filed: June 6, 2002
    Publication date: July 31, 2003
    Applicant: GeneLabs Technologies, Inc.
    Inventors: Gregory R. Reyes, Daniel W. Bradley, Jr-Shin Twu, Michael A. Purdy, Albert W. Tam, Krzysztof Z. Krawczynski, Patrice O. Yarbough
  • Patent number: 6455492
    Abstract: Antigen and antibody vaccine composition effective in preventing hepatitis E virus (HEV) infection are disclosed. The antigen composition includes peptides corresponding to carboxyl terminal end regions of the second and third open reasing frames of the HEV genome. The composition is effective in preventing HEV infection after vaccination. The antibody composition contains an antibody effective to block HEV infection of human primary hepatocytes in culture.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: September 24, 2002
    Assignee: Genelabs Technologies, Inc.
    Inventors: Gregory R. Reyes, Daniel W. Bradley, Jr-Shin Twu, Michael A. Purdy, Albert W. Tam, Krzysztof Z. Krawczynski, Patrice O. Yarbough
  • Patent number: 5770689
    Abstract: An antigen composition hepatitis E virus (HEV) infection are disclosed. The antigen composition includes peptides corresponding to carboxyl terminal end regions of the second and third open reading frames of the HEV genome.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 23, 1998
    Assignees: Genelabs Technologies, Inc., The United States of America as represented by the Department of Health and Human Services
    Inventors: Gregory R. Reyes, Daniel W. Bradley, Jr-Shin Twu, Michael A. Purdy, Albert W. Tam, Krzysztof Z. Krawczynski, Patrice O. Yarbough
  • Patent number: 5741490
    Abstract: Antigen and antibody vaccine composition effective in preventing hepatitis E virus (HEV) infection are disclosed. The antigen composition includes a peptide corresponding to a carboxyl terminal end region of the capsid protein encoded by the second open reading frame 2 of the HEV genome. The composition is effective in preventing HEV infection after vaccination. The antibody composition contains an antibody effective to block HEV infection of human primary hepatocytes in culture.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: April 21, 1998
    Assignee: Genelabs Technologies, Inc.
    Inventors: Gregory R. Reyes, Daniel W. Bradley, Jr-Shin Twu, Michael A. Purdy, Albert W. Tam, Krzysztof Z. Krawczynski, Patrice D. Yarbough