Patents by Inventor Nils E. Edeblom

Nils E. Edeblom 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 working steeply dipping vein ores with vertically downwards propagating pillars
    Patent number: 5137337
    Abstract: The invention relates to a cut-and fill method of a mine, where the working is done by pillar working, which propagates vertically downwards. The working is done by placing the stope and the pillars interlaced with each other when propagating downwards. The pillars are made by the hardening fill-method and likewise, at the bottom of the excavated stope, in the lower corners, a bed of hardening fill is made.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: August 11, 1992
    Assignee: Outokumpu Oy
    Inventors: Pentti Seppanen, Lars-Erik Aaro, David R. Lindqvist, Karl E. Marttala, Nils E. Edeblom