Patents by Inventor Rolf Wikstrom

Rolf Wikstrom 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).

  • Publication number: 20110129335
    Abstract: A caseless rotor assembly is provided. The caseless rotor assembly includes a rotor shaft, a high pressure portion with a high pressure rotor blade, a low pressure portion with a low pressure rotor blade, and a common wall between the high pressure portion and the low pressure portion. The common wall extends radially from the rotor shaft. The common wall itself includes a shaft end oriented towards the rotor shaft and an outer end on the other side of the common wall, oriented radially outwards. Additionally, the common wall surrounds circularly the rotor shaft.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 2, 2011
    Inventors: Göran Axelsson, Jari Nyqvist, Rickard Ortsaeter, Jan Persson, Rolf Wikström
  • Patent number: 4924066
    Abstract: The present invention relates to a device for cooling an electrode holder (1) for manual arc welding with coated electrodes, as well as the electrode (4) and the electric supply cable (5), said cable (5) being surrounded by a tube (10), and said electrode holder (1) comprising a handle (2) provided with a projecting electrode pin (11) having threads (12) and a conical tip (13), and a top part (3) having a bore (16) provided with threads (17) and arranged to receive the electrode pin (11), and a fixing hole (7) extending away from and at right angles to the bore (16) to the periphery of the top part (3), the conical tip (13) of the electrode pin (11) being adapted to urge an electrode (4) inserted in the fixing hole (7), into line or point contact with the wall of the fixing hole.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: May 8, 1990
    Inventors: Rolf Wikstrom, Erik Sjolund
  • Patent number: 4218180
    Abstract: A novel turbo-machine of the axial type including a rotor assembly rotatably supported within a stator housing, wherein the stator housing includes a plurality of partition wall sections, with each section supported within a separate ring member along a limited contact surface, and with each of the ring members attached to each other and to the stator housing in a manner ensuring proper alignment of the turbine assembly.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: August 19, 1980
    Assignee: Stal-Laval Turbin AB
    Inventor: Rolf Wikstrom
  • Patent number: 4208165
    Abstract: A novel turbo-machine of the axial type including a rotor assembly supported within a stator housing which includes a plurality of partition wall sections positioned adjacent one another, with each pair of sections extending on opposite sides of a rotor blade attached to the rotor assembly. Each of the partition sections is formed of a pair of similarly-shaped members, with adjacent pairs of members being rotated a specific angle prior to joining all of the pairs of each other via fasteners extending therethrough, with the plurality of joined sections then attached to the stator housing in a manner which compensates for both axial and radial thermal expansion during operation.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: June 17, 1980
    Assignee: Stal-Laval Turbin AB
    Inventor: Rolf Wikstrom