Patents Assigned to Eltech Innovations Inc.
  • Perforating, seal-greasing apparatus and method
    Patent number: 4534449
    Abstract: An improved method and apparatus for perforating and applying grease through a resilient seal using a solid or hollow needle, said solid needle puncturing the seal with a sufficiently small perforation that, as the device is maintained in contact with the seal and pressurized lubricant is applied, the perforation is hydraulically opened by the grease, and wherein, upon removal of the device, the perforation will self-seal due to the resilient character of the seal material.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: August 13, 1985
    Assignee: Eltech Innovations Inc.
    Inventor: Eldon E. Larson