Patents by Inventor John R. England

John R. England 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).

  • Dry pneumatic system for hard rock shaft drilling
    Patent number: 5199515
    Abstract: A dry, vertical shaft drilling system including an inverted raiseboring cutterhead fitted with air nozzles and vacuum pickups. Weights are detachably stacked above the cutterhead. Cuttings are extracted through the weights into a swivel circumscribing the drill string. The swivel is a transition from the rotating cutterhead to the stationary extraction riser pipes disposed above the swivel. Non-rotating stabilizers stabilize the drill string.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: April 6, 1993
    Assignee: Inco Limited
    Inventors: Kirk M. Sinclair, John R. England
  • Dry pneumatic system for hard rock shaft drilling
    Patent number: 5125692
    Abstract: A dry, vertical shaft drilling system including an inverted raiseboring cutterhead fitted with air nozzles and vacuum pickups. Weights are detachably stacked above the cutterhead. Cuttings are extracted through the weights into a swivel circumscribing the drill string. The swivel is a transition from the rotating cutterhead to the stationary extraction riser pipes disposed above the swivel. Non-rotating stabilizers stabilize the drill string.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: June 30, 1992
    Assignee: Inco Limited
    Inventors: Kirk M. Sinclair, John R. England
  • In-the-hole drill
    Patent number: 4637475
    Abstract: A compact, easily disassembled, minimum headroom drilling unit is disclosed. The drill, especially useful for newly developed vertical retreat mining methods, drills at compound angles from the vertical and horizontal directions. Low headroom is achieved by the employment of a double acting hydraulic cylinder.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: January 20, 1987
    Assignee: Inco Limited
    Inventors: John R. England, Richard L. Riach
  • Spherical bit
    Patent number: 4610317
    Abstract: A rotary bit having a pair of semi-spheres rotating about a shaft extending from a center tongue. The semi-spheres include a plurality of cutters arranged in a predetermined fashion to maximize cutting efficiency. The semi-spheres may be disposed slightly off-center from the bit's axis of symmetry to bias the bit in a particular direction.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: September 9, 1986
    Assignee: Inco Limited
    Inventors: John R. England, Donald A. Desjardins
  • Non-rotating spring loaded stabilizer
    Patent number: 4284154
    Abstract: There is provided a non-rotating, self-centering stabilizer (10). The stabilizer (10) includes a cylindrical sleeve (12) disposed about a rotating mandrel (34). A plurality of wear-resistant pads (18A, 18B and 18C) partially extend from a similar number of longitudinal channels (14A, 14B and 14C) to form a stabilizing relationship with the wall of a hole being drilled.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: August 18, 1981
    Assignee: Inco Limited
    Inventor: John R. England