Patents by Inventor Karl-Oskar FINNMAN

Karl-Oskar FINNMAN 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).

  • By-pass fluid passageway for drill tool
    Patent number: 10626677
    Abstract: A rotary drill tool for cutting rock includes a set of journal legs that rotatably mount rotating cone shaped cutters via respective bearing assemblies. A fluid supply passageway extends through the journal legs to provide a cooling and cleaning fluid to the bearings during use. A by-pass passageway extends through a base region of the spindle that mounts each cone cutter and is provided in direct fluid communication with the supply passageway to divert the fluid to a base region of the bearing assembly.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 21, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Karl-Oskar Finnman
  • Semi-sealed rotary drill tool
    Patent number: 10605006
    Abstract: A rotary drill tool for cutting rock includes at least one journal leg mounting a spindle and a respective rotary cone cutter. The spindle includes a plurality of fluid distribution passageways arranged to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: March 31, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Karl-Oskar Finnman
  • SEMI-SEALED ROTARY DRILL TOOL
    Publication number: 20170254151
    Abstract: A rotary drill tool for cutting rock includes at least one journal leg mounting a spindle and a respective rotary cone cutter. The spindle includes a plurality of fluid distribution passageways arrnaged to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.
    Type: Application
    Filed: August 24, 2015
    Publication date: September 7, 2017
    Inventor: Karl-Oskar FINNMAN
  • BY-PASS FLUID PASSAGEWAY FOR DRILL TOOL
    Publication number: 20170254152
    Abstract: A rotary drill tool for cutting rock includes a set of journal legs that rotatably mount rotating cone shaped cutters via respective bearing assemblies. A fluid supply passageway extends through the journal legs to provide a cooling and cleaning fluid to the bearings during use. A by-pass passageway extends through a base region of the spindle that mounts each cone cutter and is provided in direct fluid communication with the supply passageway to divert the fluid to a base region of the bearing assembly.
    Type: Application
    Filed: August 24, 2015
    Publication date: September 7, 2017
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Karl-Oskar FINNMAN
  • ROCK BIT TIP AND ROCK BIT
    Publication number: 20150308199
    Abstract: A rock bit tip includes a mounting portion, an end portion converging from a top end of the mounting portion to form a work surface and at least one recess in a bottom of the mounting portion, the recess extending towards the end portion. Particularly, there are more than one recess. The disclosure further relates to a rock bit.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 29, 2015
    Inventor: Karl-Oskar FINNMAN