Patents by Inventor Jasper Newton Warren

Jasper Newton Warren 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).

  • Weight control system for a rotary drill assembly
    Patent number: 6230821
    Abstract: A system for controlling the weight on a rotary drill bit includes an hydraulic cylinder and piston assembly. Pressurized hydraulic fluid acting on the bottom of the piston provides an upward force on the drill string which is connected to the rotary drill bit. A profiled central drive shaft running through the piston conveys the rotary motion from a power swivel to a piston rod attached to the bottom of the piston which in turn is connected to the drill string.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: May 15, 2001
    Assignee: Goldrus Producing Company
    Inventors: Jasper Newton Warren, Larry R. Forney