Patents by Inventor Stiv Kolega

Stiv Kolega 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: 7181865
    Abstract: A device for drying sludge originating in a waste water treatment plant is enclosed in a greenhouse having a floor for receiving a bed of sludge to be dried. The greenhouse employs solar energy. A spreader located in the greenhouse ensures the the sludge is spread over the floor and turned as it progresses along the drying device. Fans are positioned over the spreader to provide for the renewal of air present in said greenhouse. A controller controls start up and shut down of a drying cycle as well as automatic control of all motorized components in response to measurement of the temperature of the surface of the bed of sludge. The controller also takes into account the difference in temperature between the surface of the bed of sludge to be dried and the atmosphere present in the drying plant, equipment in the greenhouse only being started up when this temperature difference reaches a predetermined set point.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: February 27, 2007
    Assignee: Degremont
    Inventors: Stiv Kolega, Ulrich Luboschik
  • Publication number: 20050241174
    Abstract: The invention concerns a device for drying sludge derived from urban or industrial wastewater purifying stations using solar energy, produced in the form of a greenhouse (1) comprising a slab or floor (2) whereon is deposited the bed (3) of sludge to be dried, means (4) being provided for turning over the sludge spread on said floor and driving it forward along the drying device, the latter further comprising ventilators to renew the air contained in said greenhouse. The invention is characterized in that said ventilators (6) are positioned on the means (4) turning over and driving forward the sludge bed.
    Type: Application
    Filed: August 26, 2003
    Publication date: November 3, 2005
    Applicant: Degremont
    Inventors: Stiv Kolega, Ulrich Luboschik