Patents by Inventor John E. Bedford

John E. Bedford 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).

  • Method for protecting an internal combustion engine by determining the change point of the lubrication oil
    Patent number: 4082511
    Abstract: A new and improved on-site method for protecting an internal combustion engine in the field for maximizing service time by determining the change point of the lubrication oil when the TBN declines to a predetermined level. The on-site method utilizes a new field system fitted in a portable carrying case or a small cabinet and containing all the equipment necessary for analyzing lubrication oil including predetermined indicator marks on equipment for simplicity of application and for facilitating use by unskilled operators. The method includes two steps of titrating samples of lubrication oil for obtaining the TBN and TAN to indicate the change point of the lubricating oil when the TBN declines to a predetermined minimum. The method also can indicate a predicted change point so downtime for engine servicing can be scheduled. The TAN serves as an indicator of the amount of acid build-up in the lubrication oil.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: April 4, 1978
    Assignee: Pricon, Inc.
    Inventor: John E. Bedford