Patents by Inventor Heimo H. Kuvaja

Heimo H. Kuvaja 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: 4389814
    Abstract: A reusable seedling transplant unit for elevated growing, by germinating several seedlings simultaneously in a growth medium, contains a plurality of pot-shaped cells all joined together; each cell has an open top and bottom and is structured with a plurality of ribs extending downwardly from the open cell top to converge to the bottom. The ribs are closely spaced forming narrow slits therebetween so as to retain the growth medium in the cell during elevated growing and during transportation to a site, e.g., for reforestation. The ribs can be resiliently deformed to release each seedling for replanting in soil along with its root lump and associated growth medium, without detrimentally affecting the root lump.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: June 28, 1983
    Assignee: Stora Kopparbergs Bergslags Aktiebolag
    Inventors: Gustav O. Andreason, Ulf R. Friberg, Heimo H. Kuvaja, Bengt G. L. Qvarnstrom
  • Patent number: D273482
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: April 17, 1984
    Assignee: Stora Kopparbergs Bergslags AB
    Inventors: Gustav O. Andreason, Ulf R. Friberg, Heimo H. Kuvaja, Bengt G. L. Qvarnstrom