Patents by Inventor Stephen L. Armell

Stephen L. Armell 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).

  • Well bore reamer and method
    Patent number: 6561286
    Abstract: Disclosed are an expandable well bore reamer and method utilizing a pair of reaming blades pivotally mounted on a central support member, each blade having an inner and an outer mounting arm positioned on opposite sides of such central support member with a movable cam with cam members to push against the inner mounting arm of each blade to pivot the reaming blades outward to an open position.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: May 13, 2003
    Inventors: Richard A. Armell, Stephen L. Armell
  • Reaming tool with radially extending blades
    Publication number: 20020070052
    Abstract: A downhole reaming tool is disclosed having radially extendible cutting blades extended by hydraulic pressure directed into the tool to force an inner tubular body having protrusions thereon with tapered sides forward against the walls of mating recesses defined in such radially extendible cutting blades to extend the blades.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 13, 2002
    Inventors: Richard A. Armell, Stephen L. Armell
  • Down-hole tool hydraulic force intensifier
    Publication number: 20020070015
    Abstract: A down-hole tool hydraulic force intensifier is disclosed utilizing an intensifier piston having an enlarged fluid facing top surface for receipt of hydraulic pressure thereon to force such intensifier piston against the activating structure of the down-hole tool to effectively increase the hydraulic force thereon.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 13, 2002
    Inventors: Richard A. Armell, Stephen L. Armell
  • Well bore reamer and method
    Publication number: 20020070051
    Abstract: Disclosed are an expandable well bore reamer and method utilizing a pair of reaming blades pivotally mounted on a central support member, each blade having an inner and an outer mounting arm positioned on opposite sides of such central support member with a movable cam with cam members to push against the inner mounting arm of each blade to pivot the reaming blades outward to an open position.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 13, 2002
    Inventors: Richard A. Armell, Stephen L. Armell