Patents by Inventor Donald L. Carpenter

Donald L. Carpenter 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: 5784783
    Abstract: An improved method and tool kit for removing injector sleeves from the cylinder head of engines includes inserting a pull plate below the upper rim of the injector sleeve. A post projects upwardly from the pull plate and extends from the bore hole in the cylinder head. The upper rim of the injector sleeve is then curled inwardly to relax the injector sleeve in the bore. Additionally, the curled upper rim of the injector sleeve provides a surface against which the pull plate can be pulled to thereby dislodge the injector sleeve from the bore for quick and efficient removal of the injector sleeve.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: July 28, 1998
    Inventor: Donald L. Carpenter
  • Patent number: 5414941
    Abstract: A service tool kit to perform synchronizing, fuel setting and fuel timing on a diesel truck engine. These adjustments are done without removing the rocker arm assemblies through the use of the access positioning tool included in the kit. All three calibrations can be made by inserting a holding fixture and other associated tools into the injector area without engine bolt removal or separate dial indicator setup.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: May 16, 1995
    Inventor: Donald L. Carpenter
  • Patent number: D370861
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: June 18, 1996
    Inventor: Donald L. Carpenter