Patents by Inventor Pertti Saarelainen

Pertti Saarelainen 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).

  • Method for aligning a feeding beam in a rock drilling equipment and a rock drilling equipment and a measuring device
    Patent number: 5348105
    Abstract: A method, a rock drilling equipment (1) a measuring device (10) for aligning a feeding beam (5) in the rock drilling equipment (1) with a drilling direction. In the method, an angle Sg(g) between the drilling direction (S.sub.p) and a direction (S.sub.t) defined by a fixed point selected as a point of sight (T) is measured and stored in a memory, and the feeding beam (5) is adjusted at the following holes so that it is positioned at an angle .beta. corresponding to the drilling direction (S.sub.p) measured with respect to a direction (S.sub.a) of a carrier (1a) by means of the point of sight (T). The measuring device (10) comprises two mutually turntable discs (11, 12) of which one is positioned to indicate the drilling direction (S.sub.p) and the other is turned in such a way that its measuring line points towards a fixed point serving as a point of sight (T), thus defining a reference line (S.sub.t).
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: September 20, 1994
    Assignee: Tamrock Oy
    Inventors: Juhani Lappalainen, Heikki Rinnemaa, Ari Tuunanen, Pertti Saarelainen