Patents by Inventor Albert W. Smith

Albert W. Smith 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).

  • Cylinder displaceable power swivel for a portable drilling apparatus _and a process therefor
    Patent number: 4496006
    Abstract: A cylinder displaceable slide gate and power swivel for well drilling rigs and the like comprising a longitudinally extending frame having an upper end and a lower end and including a ground supported base connected to said lower end; cylinder means secured to said base and including piston means adapted for reciprocating displacement between said base and said upper end; a plurality of longitudinally extending guide means connected to said frame and substantially spanning said frame from said lower end to said upper end; said slide gate and said power swivel connected to said piston means and displaceable therewith; and, said slide gate and said power swivel associated with said guide means is disclosed herewith.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: January 29, 1985
    Inventor: Albert W. Smith
  • 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