Patents by Inventor Michael J. Ohannesian

Michael J. Ohannesian 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: 4619027
    Abstract: A tool is provided for installing and aligning camshaft bushings in internal combustion engines. The tool includes a guide which fits into the bushing bore of the number one bushing in the engine block. The guide includes a spring-loaded engaging ball and depth shoulder for positioning the guide and orienting it with respect to the oil delivery passage in the engine block. The guide includes a central opening with a keyway, through which a shaft extends. The shaft is slidable with respect to the guide and includes protruding pins which engage the key way to orient the shaft. A working head holds a camshaft bushing, and a spring-loaded ball on the head engages the oil supply opening in the wall of the bushing to angularly orient the bushing on the head. With the shaft pins in the key way, a bushing on the head is exactly aligned with the oil delivery passages in the engine block. The bushings may then be installed by striking the other end of the shaft with a hammer. Depth gauge indicators are also provided.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: October 28, 1986
    Inventor: Michael J. Ohannesian
  • Patent number: 4110886
    Abstract: A tool for removing injectors from diesel engines having a working head proportioned to fit closely within the outer end of the central passage of a diesel injector and provided with a shoulder for limiting penetration thereinto. A transverse passage in the working head contains a spring-loaded pin having a stop to limit the distance by which the outer end of the pin projects beyond the cylindrical surface of the working head when the tool is not in use. In use, the spring-loaded pin is depressed to permit the outer end of the working head to be inserted into the central passage of the diesel injector until the shoulder bears against the diesel injector. The working head is replaceably carried on an elongated shaft, and a massive cylindrical driving member is slideable on the same shaft between a stop at the outer end of the shaft and the working head.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: September 5, 1978
    Inventors: Gunter K. Wendler, Enrique Corpus, Michael J. Ohannesian