Patents by Inventor HaLeo

HaLeo 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).

  • Supporting arrangement for a feed device for a rock drilling machine
    Patent number: 4676322
    Abstract: A supporting arrangement for a feed device for a drilling machine of a rock drilling unit (2) comprising a feed device (3) for a drilling machine (4), a cradle (5) supporting the feed device longitudinally displaceably and a supporting device (10) which is extendable in parallel with the feed device for supporting the feed device against a tunnel wall. The supporting device is supported by the cradle so that it remains stationary with respect to the cradle when the feed device is displaced.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: June 30, 1987
    Assignee: Oy Tampella AB
    Inventors: Pauli Rajakallio, HaLeo