Patents by Inventor Paul J. Kragh

Paul J. Kragh 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).

  • Modular internal combustion engines
    Patent number: 6904883
    Abstract: A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankcase. A number of different crankcases are provided for various types of single and two cylinder engines, the crankcases having common mounting structure to which the cylinder members may be attached. Thus, the manner in which the cylinder members are attached to the crankcases is the same for each of the different types of crankcases. Two different types of cylinder members are provided, one having a side valve or “L-head” valve train, and the other having an overhead cam (“OHV”) valve train. The cylinder members are therefore modular components which may be selectively used in a variety of different types of engines.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: June 14, 2005
    Assignee: Tecumseh Products Company
    Inventors: Dale D. Snyder, Thomas A. Immel, Scot A. Koehler, Gary Stanelle, Karl W. Monis, Mark J. Glodowski, Russell J. Dopke, Paul J. Kragh
  • Modular internal combustion engines
    Publication number: 20040031458
    Abstract: A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankcase. A number of different crankcases are provided for various types of single and two cylinder engines, the crankcases having common mounting structure to which the cylinder members may be attached. Thus, the manner in which the cylinder members are attached to the crankcases is the same for each of the different types of crankcases. Two different types of cylinder members are provided, one having a side valve or “L-head” valve train, and the other having an overhead cam (“OHV”) valve train. The cylinder members are therefore modular components which may be selectively used in a variety of different types of engines.
    Type: Application
    Filed: June 2, 2003
    Publication date: February 19, 2004
    Inventors: Dale D. Snyder, Thomas A. Immel, Scot A. Koehler, Gary Stanelle, Karl W. Monis, Mark J. Glodowski, Russell J. Dopke, Paul J. Kragh