Patents by Inventor Yoke L. Yam

Yoke L. Yam 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: 4653761
    Abstract: A head gasket, for sealing a junction between a top face of a cylinder block of an engine and a bottom face of a cylinder head thereof, of the type having a row of relatively large circular cut-outs, that, in use, correspond in size, number and position to that of cylinder spaces formed in the cylinder block and a plurality of apertures that are relatively small in comparison to the circular cut-outs that, in use, correspond in number and position to coolant passages formed in the faces of the cylinder block and cylinder head, as well as holes sized and positioned, in use, in accordance with holes in the cylinder block and head for connecting bolts and holes for lubricant circulation. In addition to a first row of apertures extending along a first lateral side of the circular cylinder cut-outs, the gasket is provided with a second row of apertures that are used to orifice outlet coolant passages from the cylinder head to the cylinder block.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: March 31, 1987
    Assignee: Cummins Engine Company, Inc.
    Inventors: J. Dan Baugh, Kent Shields, Yoke L. Yam, Larry Wells