Patents by Inventor Helge Lindroos

Helge Lindroos 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).

  • Patent number: 4965409
    Abstract: A cable (1) entering a submersible machine, such as an electrically driven pump, a turbine etc., is surrounded by a collar (3) of a rigid material, and the collar (3) is secured to the machine shell (2) by bolts (4). Two sockets (5) and (6) of an elastic material surround the cable (1), one of them mounted in the shell (2) and the other in the collar (3). A ring (8) of a rigid material is arranged between the two sockets (5) and (6). The collar (3), during mounting, is moved towards and into contact with the shell (2), thereby causing the sockets (5) and (6) to be compressed axially and expanded radially so that the cable (1) is secured and sealed.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: October 23, 1990
    Assignee: Flygt AB
    Inventor: Helge Lindroos