Drilling, Mining, Or Soil Treatment (includes Element) Patents (Class D15/21)
  • Well drilling vehicle
    Patent number: D244190
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: May 3, 1977
    Assignee: Driltech, Inc.
    Inventors: Richard H. Swartz, Richard J. Pearce, James M. Bowe
  • Cutter head for an ice auger
    Patent number: D250388
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: November 28, 1978
    Inventor: Uuno Rantanen
  • Mobile rotary drill rig
    Patent number: D253535
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: November 27, 1979
    Assignee: Chicago Pneumatic Tool Co.
    Inventors: Walter A. Schmidt, Jack D. Smith, Jay R. Cory
  • Panning machine
    Patent number: D262798
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: January 26, 1982
    Assignee: Goldhound International, Inc.
    Inventor: Eric W. Oldendorf
  • Mining vehicle
    Patent number: D262973
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: February 9, 1982
    Assignee: Envirotech Corporation
    Inventors: John Griffin, T. Daryl Hatch
  • Articulated blasthole drilling vehicle
    Patent number: D264590
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: May 25, 1982
    Assignee: Ewbank Mfg. Division, Inc.
    Inventor: G. Richard Thomas
  • Self-propelled trenching machine
    Patent number: D266765
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: November 2, 1982
    Assignee: Midmark Corporation
    Inventor: Charles A. Clune
  • Drilling rig rotary table anti-skid safety pad or similar article
    Patent number: D267069
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: November 30, 1982
    Assignee: Custom Safety Products
    Inventors: Choice R. Kinchen, Roy D. Phillips
  • Vegetation scalping and earth boring tool
    Patent number: D267405
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: December 28, 1982
    Inventor: Alvin K. Wilson
  • Self-propelled drilling machine
    Patent number: D267719
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: January 25, 1983
    Inventor: Stanford E. Case
  • Roller bit
    Patent number: D273680
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: May 1, 1984
    Assignee: Fagersta AB
    Inventor: Karl-Erik Kangas
  • Solar powered valve control unit
    Patent number: D277286
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: January 22, 1985
    Assignee: Otis Engineering Corporation
    Inventor: Mark A. Schnatzmeyer
  • Support for a power mask for drilling wells
    Patent number: D279785
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: July 23, 1985
    Inventor: Michael C. Vaughan
  • Pipeholder or the like
    Patent number: D280697
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: September 24, 1985
    Inventor: Leon D. Ballew
  • Mine carrier vehicle
    Patent number: D281428
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: November 19, 1985
    Assignee: Timberjack Inc.
    Inventor: Godfrey S. Kent
  • Rotating head for drilling
    Patent number: D282073
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: January 7, 1986
    Assignee: Arkoma Machine Shop, Inc.
    Inventors: Robert M. Bearden, W. A. Haynes
  • Combined erectable hydraulic drilling rig and transport trailer
    Patent number: D282368
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: January 28, 1986
    Inventor: Albert W. Smith
  • Shank adaptor for a rock drill
    Patent number: D282666
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: February 18, 1986
    Assignee: Oy Tampella AB
    Inventors: Pekka Salmi, Hannu Paasonen
  • Side door casing spool for an oilwell casing
    Patent number: D287264
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: December 16, 1986
    Inventors: Marion Rinaldo, William J. Crouch
  • Wedge for a drill shank of a percussion drilling machine
    Patent number: D291087
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: July 28, 1987
    Assignee: OY Tampella AB
    Inventors: Pekka Salmi, Timo Muuttonen
  • Heavy wall drill pipe
    Patent number: D297847
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: September 27, 1988
    Assignee: LOR, Inc.
    Inventors: Gregg S. Perkin, Alonzo L. DeCell, Peter Patarini
  • Reamer for drilling water wells and the like
    Patent number: D300143
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 7, 1989
    Inventor: William E. Blauvelt
  • Drill bit
    Patent number: D307020
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: April 3, 1990
    Assignee: Lyng Drilling Products A-S
    Inventors: Bjorn Lyng, Hans Tronstad
  • Cutting tooth for a rotating drag bit
    Patent number: D307279
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: April 17, 1990
    Assignee: Eastman Christensen Company
    Inventor: Lloyd Vincent
  • Hydro jet excavation nozzle
    Patent number: D308211
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: May 29, 1990
    Inventor: George J. Magnera
  • Fluid jet tiller
    Patent number: D312464
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: November 27, 1990
    Inventor: Myron L. Peterson
  • Combined placer mining suction nozzle and puddling nozzle
    Patent number: D313025
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: December 18, 1990
    Inventor: Vernon A. East
  • Driving ram adapter block
    Patent number: D313999
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: January 22, 1991
    Inventor: Gerald G. Conti
  • Stud-mounted polycrystalline toothed diamond cutting blank
    Patent number: D317010
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: May 21, 1991
    Assignee: General Electric Company
    Inventor: Friedel S. Knemeyer
  • Trencher
    Patent number: D319063
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: August 13, 1991
    Assignee: Austoft Industries Limited
    Inventor: James R. Warren