Patents by Inventor Mark W. Craig

Mark W. Craig 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: 7132087
    Abstract: An embodiment includes an apparatus and method of distributing gases within a catalytic converter assembly. Gases flow through at least one inlet into a housing and out of the housing through at least one outlet. A substrate is disposed at least partially between at least one of the at least one inlet and at least one of the at least one outlet. The mass flow rate of the gases across at least one surface of a deflector are substantially equalized as the gases flow through at least one of the at least one inlet into the housing and out of the housing through at least one of the at least one outlet.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: November 7, 2006
    Assignee: Caterpillar Inc
    Inventors: Mark W. Craig, Stephan D. Roozenboom
  • Publication number: 20030113241
    Abstract: An embodiment includes an apparatus and method of distributing gases within a catalytic converter assembly. Gases flow through at least one inlet into a housing and out of the housing through at least one outlet. A substrate is disposed at least partially between at least one of the at least one inlet and at least one of the at least one outlet. The mass flow rate of the gases across at least one surface of a deflector are substantially equalized as the gases flow through at least one of the at least one inlet into the housing and out of the housing through at least one of the at least one outlet.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Inventors: Mark W. Craig, Stephan D. Roozenboom
  • Patent number: 6408831
    Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, an intake air temperature is controlled. One of an ambient air flow restriction system or an intake air flow restriction system is used to vary the flow of a recipient ambient air flow through an air to air or the flow of a donor intake air flow through the aftercooler respectively. A plurality of louvers are operatively moved between a closed position and an open position with the ambient air flow restriction system. And, a flapper valve is operatively moved between a closed position and an open position with the intake air flow restriction system. A controller interprets a respective signal from a plurality of sensors to define the position of the plurality of louvers or to define the position of the flapper valve.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: June 25, 2002
    Assignee: Caterpillar Inc.
    Inventors: Mark W. Craig, Eric D. Hardin, Tony G. Kertz
  • Publication number: 20020073977
    Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, an intake air temperature is controlled. One of an ambient air flow restriction system or an intake air flow restriction system is used to vary the flow of a recipient ambient air flow through an air to air or the flow of a donor intake air flow through the aftercooler respectively. A plurality of louvers are operatively moved between a closed position and an open position with the ambient air flow restriction system. And, a flapper valve is operatively moved between a closed position and an open position with the intake air flow restriction system. A controller interprets a respective signal from a plurality of sensors to define the position of the plurality of louvers or to define the position of the flapper valve.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Inventors: Mark W. Craig, Eric D. Hardin, Tony G. Kertz
  • Patent number: 6293262
    Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, a donor intake air temperature is controlled. A donor intake air flow restriction system is used to vary the flow of the donor intake air through an air to air aftercooler. A valve is operatively moved between a closed position and an open position. A controller interprets a respective signal from a plurality of sensors to define the position of the valve.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: September 25, 2001
    Assignee: Caterpillar Inc.
    Inventors: Mark W. Craig, Tony G. Kertz
  • Patent number: 5310197
    Abstract: A head gasket assembly (18) is used for sealing a joint between a cylinder block (12) and a cylinder head (14). At least portions of the head gasket assembly (18) must withstand high temperatures, high pressures and be flexible for sealing fluid passages such as lubricating oil and cooling water mixtures. The present head gasket assembly (18) is comprised of a main gasket body (40) constructed of a sealing material (46) having a plurality of apertures (48,50,52) positioned therein. A portion of the plurality of apertures (48,50,52) includes a combustion opening (52) having a first ring (54) positioned in the periphery of the combustion opening (52). A plurality of tape strips (60) having an end portion (62) attached to a side of the sealing material (46), partially surrounding the fire ring (54) and another end portion (64) attached to the other side of the sealing material (46).
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: May 10, 1994
    Assignee: Caterpillar Inc.
    Inventors: Cynthia F. Bruch, Mark W. Craig, Dale E. Geyer, Lynette M. Lipski, Roger A. McHugh, Tana L. Utley