Patents Assigned to Consolidated Technologies Corp.
  • Patent number: 4745981
    Abstract: A hydraulic impact tool having a housing, a working tool, a ram, an energy storage device, and a valve slide. The tool also has a high pressure hydraulic fluid inlet port, an intermediate pressure hydraulic fluid inlet port, and two return lines. One of the return lines is for exhausting fluid from an upper annular chamber, and the other return line is for exhausting fluid from an intermediate annular chamber.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: May 24, 1988
    Assignee: Consolidated Technologies Corp.
    Inventor: Robert J. Buske