Patents Assigned to NICHOLS-IP PLLC
  • Water hammer prevention valve and method
    Patent number: 9163388
    Abstract: A valve for preventing water hammer includes a speed reduction device for reducing a speed at which the valve may be closed. A method of preventing water hammer includes closing a valve at a fire hydrant after extracting water from the fire hydrant, in which the valve comprising a speed reduction device that increases an amount of time needed for closing the valve, and operating the valve to close the valve comprises operating the speed reduction device.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: October 20, 2015
    Assignee: NICHOLS-IP PLLC
    Inventors: Dale S. Cheney, Steven L. Nichols