Patents by Inventor Tomas Sh Jansson

Tomas Sh Jansson 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).

  • Shank adaptor with reinforced flushing slot
    Patent number: 10745972
    Abstract: A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The adaptor wall at the region of the entry hole is reinforced such that an internal diameter of the flushing bore at the reinforced region is less than an internal diameter of the bore at a position axially beyond the reinforced region.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: August 18, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Susanne Lejon, Magnus Persson, Tomas Sh Jansson
  • Drill string with bend resistant coupling
    Patent number: 10584545
    Abstract: A drill string rod forms part of a drill string having one end configured with a male spigot portion to be received within a corresponding rod female sleeve end. To minimize stress concentrations within the threaded male and female coupling, the male spigot is configured with a large diameter or cross-sectional area being at least equal to the cross sectional area or diameter of the main length section.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: March 10, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Tomas Sh Jansson
  • Energy transmission efficient drill string coupling
    Patent number: 10190372
    Abstract: A drill string and a threaded coupling region for a drill string include threaded male and female ends that are optimized to maximize energy transmission efficiency for percussion drilling. The coupling includes a male spigot to be received within a female sleeve, such that an axial length of the overlap of the spigot within the sleeve is less than an outside diameter of the sleeve.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: January 29, 2019
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Jonas Rosen, Tomas Sh Jansson
  • Drill bit for a percussive hammer and shank therefore
    Patent number: 9719306
    Abstract: A bit for a percussive hammer includes an elongated shank, a head at a first end of the shank, and an array of lengthwise extending spline portions defining outwardly extending retention lugs at or toward a further end of the shank. At least a side face of at least one lug is blended into the shank of the bit.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 1, 2017
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Conny Seppala, Tomas Sh Jansson
  • SHANK ADAPTOR WITH REINFORCED FLUSHING SLOT
    Publication number: 20170145756
    Abstract: A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The adaptor wall at the region of the entry hole is reinforced such that an internal diameter of the flushing bore at the reinforced region is less than an internal diameter of the bore at a position axially beyond the reinforced region.
    Type: Application
    Filed: May 4, 2015
    Publication date: May 25, 2017
    Inventors: Susanne LEJON, Magnus PERSSON, Tomas Sh JANSSON
  • Shock wave modification in percussion drilling apparatus and method
    Patent number: 9637982
    Abstract: A percussion drilling apparatus is arranged to affect at least one characteristic of a shock wave produced in a drill string. The apparatus includes an elongate energy transmission adaptor having a shock wave modification sleeve configured with a free end and an attachment end projecting radially from an outer surface of the adaptor.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: May 2, 2017
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Tomas Sh Jansson, Andreas Rindeskar
  • Shank adaptor with fracture resistant flushing hole
    Patent number: 9523245
    Abstract: A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The flushing hole is optimized to reduce the likelihood of fracture at the wall of the adaptor and in particular includes straight sections at axially forward and rearwardmost regions of the hole.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: December 20, 2016
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Rasmus Hemph, Tomas Sh Jansson
  • ENERGY TRANSMISSION EFFICIENT DRILL STRING COUPLING
    Publication number: 20160222737
    Abstract: A drill string and a threaded coupling region for a drill string in which a threaded male and female end are optimised to maximise energy transmission efficiency for percussion drilling. The present coupling includes a male spigot to be received within a female sleeve such that an axial length of the overlap of the spigot within the sleeve is less than an outside diameter of the sleeve.
    Type: Application
    Filed: August 25, 2014
    Publication date: August 4, 2016
    Inventors: Jonas ROSEN, Tomas Sh JANSSON
  • SHOCK WAVE MODIFICATION IN PERCUSSION DRILLING APPARATUS AND METHOD
    Publication number: 20160215573
    Abstract: A percussion drilling apparatus is arranged to affect at least one characteristic of a shock wave produced in a drill string. The apparatus includes an elongate energy transmission adaptor having a shock wave modification sleeve configured with a free end and an attachment end projecting radially from an outer surface of the adaptor.
    Type: Application
    Filed: August 27, 2014
    Publication date: July 28, 2016
    Applicant: SANDVIK INTELLECTUAL PROERTY AB
    Inventors: Tomas Sh JANSSON, Andreas RINDESKAR
  • DRILL STRING WITH BEND RESISTANT COUPLING
    Publication number: 20160215572
    Abstract: A drill string rod forms part of a drill string having one end configured with a male spigot portion to be received within a corresponding rod female sleeve end. To minimize stress concentrations within the threaded male and female coupling, the male spigot is configured with a large diameter or cross-sectional area being at least equal to the cross sectional area or diameter of the main length section.
    Type: Application
    Filed: August 27, 2014
    Publication date: July 28, 2016
    Inventor: Tomas Sh JANSSON
  • SHANK ADAPTOR WITH FRACTURE RESISTANT FLUSHING HOLE
    Publication number: 20160215569
    Abstract: A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The flushing hole is optimised to reduce the likelihood of fracture at the wall of the adaptor and in particular includes straight sections at axially forward and rearwardmost regions of the hole.
    Type: Application
    Filed: September 1, 2014
    Publication date: July 28, 2016
    Inventors: Rasmus HEMPH, Tomas Sh JANSSON
  • A DRILL BIT FOR A PERCUSSIVE HAMMER AND SHANK THEREFORE
    Publication number: 20140345953
    Abstract: A bit for a percussive hammer includes an elongated shank, a head at a first end of the shank, and an array of lengthwise extending spline portions defining outwardly extending retention lugs at or toward a further end of the shank. At least a side face of at least one lug is blended into the shank of the bit.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 27, 2014
    Applicant: Sandvik Intellectual Property AB
    Inventors: Conny Seppala, Tomas Sh Jansson