Patents by Inventor Donald P. Leclerc

Donald P. Leclerc 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).

  • Pressure controlled dynamic seal with captured fluid transfer tubes
    Patent number: 10526998
    Abstract: A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a cylinder head sealing surface and a second surface to abut an engine block sealing surface. The perimeter seal is configured to prevent fluid from an external environment from entering the cylinder head interface and to allow fluid within the cylinder head interface to vent to the external environment when the fluid is above a predetermined pressure. A first fluid transfer tube seal fluidly seals a first fluid transfer orifice extending between the engine block and the cylinder head. The perimeter seal and the first fluid transfer tube seal are formed as a unitary structure.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 7, 2020
    Assignee: Cummins Inc.
    Inventors: David P. Genter, Terrence M. Shaw, Timothy A. Solzak, Stephen Cox, Donald P. Leclerc
  • PRESSURE CONTROLLED DYNAMIC SEAL WITH CAPTURED FLUID TRANSFER TUBES
    Publication number: 20190170083
    Abstract: A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a cylinder head sealing surface and a second surface to abut an engine block sealing surface. The perimeter seal is configured to prevent fluid from an external environment from entering the cylinder head interface and to allow fluid within the cylinder head interface to vent to the external environment when the fluid is above a predetermined pressure. A first fluid transfer tube seal fluidly seals a first fluid transfer orifice extending between the engine block and the cylinder head. The perimeter seal and the first fluid transfer tube seal are formed as a unitary structure.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: CUMMINS INC.
    Inventors: David P. Genter, Terrence M. Shaw, Timothy A. Solzak, Stephen Cox, Donald P. Leclerc
  • Pressure controlled dynamic seal with captured fluid transfer tubes
    Patent number: 10233863
    Abstract: A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a cylinder head sealing surface and a second surface to abut an engine block sealing surface. The perimeter seal is configured to prevent fluid from an external environment from entering the cylinder head interface and to allow fluid within the cylinder head interface to vent to the external environment when the fluid is above a predetermined pressure. A first fluid transfer tube seal fluidly seals a first fluid transfer orifice extending between the engine block and the cylinder head. The perimeter seal and the first fluid transfer tube seal are formed as a unitary structure.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: March 19, 2019
    Assignee: Cummins Inc.
    Inventors: David P. Genter, Terrence M. Shaw, Timothy A. Solzak, Stephen Cox, Donald P. Leclerc
  • PRESSURE CONTROLLED DYNAMIC SEAL WITH CAPTURED FLUID TRANSFER TUBES
    Publication number: 20170037809
    Abstract: A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a cylinder head sealing surface and a second surface to abut an engine block sealing surface. The perimeter seal is configured to prevent fluid from an external environment from entering the cylinder head interface and to allow fluid within the cylinder head interface to vent to the external environment when the fluid is above a predetermined pressure. A first fluid transfer tube seal fluidly seals a first fluid transfer orifice extending between the engine block and the cylinder head. The perimeter seal and the first fluid transfer tube seal are formed as a unitary structure.
    Type: Application
    Filed: April 29, 2014
    Publication date: February 9, 2017
    Applicant: Cummins, Inc.
    Inventors: David P. Genter, Terrence M. Shaw, Timothy A. Solzak, Stephen Cox, Donald P. Leclerc