Patents by Inventor Antti Leino

Antti Leino 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).

  • Drill bit for percussive drilling, a drill bit assembly, and a method for manufacturing such a drill bit
    Patent number: 11008812
    Abstract: A drill bit, drill bit assembly and related methods of manufacture as disclosed involve a head portion having a circumference and a face surface, and a shank portion extending longitudinally from a side of the head portion opposite to the face surface. A central flushing channel extends longitudinally through the shank portion and a distance within the head portion, and a lateral flushing channel extends from the central flushing channel to the circumference of the head portion. A first portion of the lateral flushing channel is inclined, in a flushing fluid flowing direction, towards the face surface with respect to said second portion, and correspondingly, a second portion is inclined, in a flushing fluid flowing direction, towards the shank portion.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 18, 2021
    Assignee: ROBIT OYJ
    Inventors: Pasi Korte, Antti Leino
  • A DRILL BIT FOR PERCUSSIVE DRILLING, A DRILL BIT ASSEMBLY, AND A METHOD FOR MANUFACTURING SUCH A DRILL BIT
    Publication number: 20200011136
    Abstract: A drill bit, drill bit assembly and related methods of manufacture as disclosed involve a head portion having a circumference and a face surface, and a shank portion extending longitudinally from a side of the head portion opposite to the face surface. A central flushing channel extends longitudinally through the shank portion and a distance within the head portion, and a lateral flushing channel extends from the central flushing channel to the circumference of the head portion. A first portion of the lateral flushing channel is inclined, in a flushing fluid flowing direction, towards the face surface with respect to said second portion, and correspondingly, a second portion is inclined, in a flushing fluid flowing direction, towards the shank portion.
    Type: Application
    Filed: February 28, 2018
    Publication date: January 9, 2020
    Applicant: ROBIT OYJ
    Inventors: Pasi KORTE, Antti LEINO
  • Ring bit
    Patent number: D802637
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 14, 2017
    Assignee: ROBIT OYJ
    Inventors: Pasi Korte, Sami Eskelin, Mikko Mattila, Antti Leino
  • Ring bit
    Patent number: D802638
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 14, 2017
    Assignee: ROBIT OYJ
    Inventors: Pasi Korte, Sami Eskelin, Mikko Mattila, Antti Leino
  • Ring bit
    Patent number: D807417
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: January 9, 2018
    Assignee: ROBIT OYJ
    Inventors: Pasi Korte, Sami Eskelin, Mikko Mattila, Antti Leino
  • Ring bit
    Patent number: D807418
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: January 9, 2018
    Assignee: ROBIT OYJ
    Inventors: Pasi Korte, Sami Eskelin, Mikko Mattila, Antti Leino