Patents Assigned to PIETRO ROSA T.B.M. S.R.L.
  • Patent number: 10066492
    Abstract: A turbomachine blade having a metal coupling root, and a metal airfoil-shaped oblong member cantilevered projecting from the coupling root; the airfoil-shaped oblong member being divided into: a lower connecting fin cantilevered projecting from and formed in one piece with the coupling root; an upper connecting fin cantilevered projecting from a coupling head towards the coupling root and formed in one piece with the coupling head; and a main plate-like body which is shaped and positioned between the two connecting fins to form an extension of the fins, and is butt-welded to the same connecting fins to form one piece with the fins.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: September 4, 2018
    Assignee: Pietro Rosa T.B.M. S.r.l.
    Inventor: Andrea Maurizio
  • Patent number: 9915272
    Abstract: A turbomachine blade of the type having a metal lower coupling root, a metal upper coupling head, and a metal airfoil-shaped oblong member designed to connect the coupling root rigidly to the coupling head; the airfoil-shaped oblong member having a substantially airfoil-shaped main plate-like element connected to the coupling root and to the coupling head, and which is divided into: a lower connecting fin cantilevered from and formed in one piece with the coupling root; an upper connecting fin cantilevered from and formed in one piece with the coupling head; and a center plate-like body, which is located between the lower and upper connecting fins, is shaped/designed to form an extension of the lower and upper connecting fins, and is butt-welded to, to form one piece with, the lower and upper connecting fins.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 13, 2018
    Assignee: PIETRO ROSA T.B.M. S.R.L.
    Inventor: Andrea Maurizio
  • Patent number: 9816382
    Abstract: A turbomachine blade having a metal coupling root, and a metal airfoil-shaped oblong member cantilevered from the coupling root; the airfoil-shaped oblong member being divided into: a lower connecting fin cantilevered from and formed in one piece with the coupling root; an upper connecting fin cantilevered from a coupling head towards the coupling root and formed in one piece with the coupling head; and a main plate-like body which is shaped and positioned between the two connecting fins to form an extension of the fins, and is butt-welded to the same connecting fins to form one piece with the fins.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 14, 2017
    Assignee: Pietro Rosa T.B.M. S.r.l.
    Inventor: Andrea Maurizio
  • Patent number: 9624783
    Abstract: A turbomachine blade of the type having a metal lower coupling root, a metal upper coupling head, and a metal airfoil-shaped oblong member designed to connect the coupling root rigidly to the coupling head; the airfoil-shaped oblong member having a substantially airfoil-shaped main plate-like element connected to the coupling root and to the coupling head, and which is divided into: a lower connecting fin cantilevered from and formed in one piece with the coupling root; an upper connecting fin cantilevered from and formed in one piece with the coupling head; and a center plate-like body, which is located between the lower and upper connecting fins, is shaped/designed to form an extension of the lower and upper connecting fins, and is butt-welded to, to form one piece with, the lower and upper connecting fins.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 18, 2017
    Assignee: PIETRO ROSA T.B.M. S.R.L.
    Inventor: Andrea Maurizio