Patents by Inventor Markku Haukioja

Markku Haukioja 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).

  • Arrangement and Method for Dehumidifying Greenhouse Air and a Greenhouse
    Publication number: 20090308087
    Abstract: A system for drying and cooling greenhouse air, the system comprising water distribution means (1), by means of which water cooler than the dewpoint temperature of the greenhouse can be sprayed directly into its the air space without separate condenser chambers, structures and fans.
    Type: Application
    Filed: March 6, 2007
    Publication date: December 17, 2009
    Inventors: Markku Haukioja, Jukka Huttunen, Esko Huhta-Koivisto
  • Apparatus for turning and/or mixing a flat bed compost
    Patent number: 6382828
    Abstract: An apparatus for turning and mixing a flat bed composting mass includes an even number of mixing worms that each rotate about a vertical shaft. The end of each vertical shaft may include a wear-resistant element on its end which serves to protect the shaft during operation. The vertical shafts may also be hollow and include an air hole for transmitting air into the composting mass. The pair of mixing worms preferably rotate in opposite directions to lift the composting mass upwardly from the bottom of the mass.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: May 7, 2002
    Assignee: Biolan Oy
    Inventors: Markku Haukioja, Paavo Malkiainen, Osmo Haaslahti, Mikko Haaslahti