Patents by Inventor Roelof Koster

Roelof Koster 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: 6523355
    Abstract: Ice cube apparatus for the production of ice cubes, comprising a water reservoir with a filling opening, which can be filled with a desired amount of water, an ice cube tray, which is separate from the water reservoir and has at least one mold cavity, water-metering means for supplying a metered amount of water from the water reservoir to the mold cavity, at least one thermoelectric element for freezing the amount of water in the mold cavity, control means with a timer unit for providing current to the thermoelectric element for a defined freezing time, in such a manner that this element extracts heat on the side of the ice cube tray, release means for releasing a frozen ice cube from the ice cube tray after the freezing time, and discharge means for collecting and dicharging the ice cube which has been released from the ice cube tray.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: February 25, 2003
    Assignee: Wiltoe Innovatie B.V.
    Inventor: Roelof Koster
  • Publication number: 20020053210
    Abstract: Ice cube apparatus for the production of ice cubes, comprising a water reservoir with a filling opening, which can be filled with a desired amount of water, an ice cube tray, which is separate from the water reservoir and has at least one mould cavity, water-metering means for supplying a metered amount of water from the water reservoir to the mould cavity, at least one thermoelectric element for freezing the amount of water in the mould cavity, control means with a timer unit for providing current to the thermoelectric element for a defined freezing time, in such a manner that this element extracts heat on the side of the ice cube tray, release means for releasing a frozen ice cube from the ice cube tray after the freezing time, and discharge means for collecting and dicharging the ice cube which has been released from the ice cube tray.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 9, 2002
    Inventor: Roelof Koster