Patents Assigned to Jack M. Mitchell
  • Boot for sealing ruptured gas or water mains and tool for application
    Patent number: 4342338
    Abstract: A sealing boot that may be secured about a gas or water main over a ruptured portion thereof to seal off the leak and permit continuity of customer service while the main is repaired. An application tool and the method or procedure by which the repairs are made without interruption of service are also disclosed.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: August 3, 1982
    Assignee: Jack M. Mitchell
    Inventor: William L. Glennie