Patents by Inventor Niilo Jaasko

Niilo Jaasko 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: 4989837
    Abstract: The present invention concerns a procedure for producing an envelope structure for a storage battery having a housing, a cover, and partitions separating cells therein. The battery in particular comprises one or several cells enclosed within the housing, with each cell containing electrolyte and monopolar plates and/or bipolar plates separated from one another by separator plates, and being coated with positive and/or negative active mass, in addition to the requisite electrical connectors interconnecting the cells and/or plates. The envelope structure of the storage battery is produced by casting with electrically-insulating an electrolyte-impermeable material, using in the casting the cells of the storage battery at an inner mold, and separately-constructed mold structure as an outer mold. Wall thickness of the housing of the storage battery is defined with the aid of a spacer structure remaining inside the cast.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: February 5, 1991
    Assignee: Neste Oy
    Inventors: Toivo Karna, Ahti Kemppi, Esko Savolainen, Kalevi Lind, Niilo Jaasko, Olli Walden
  • Patent number: 4973533
    Abstract: The present invention concerns a gas vault structure for a storage battery having one or several cells enclosed in a housing, each cell containing electrolyte and monopolar plates and/or bipolar plates separated from one another by separator plates and coated with positive and/or negative mass, along with requisite electrical connectors interconnecting cells and/or plates. The gas vault structure is arranged to serve as an inner core for producing a gas space during casting of the housing of the storage battery, and/or of the cover, and/or of the partitions separating the cells.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: November 27, 1990
    Assignee: Neste Oy
    Inventors: Jukka-Pekka Nieminen, Asko Maisti, Toivo Karna, Ahti Kemppi, Esko Savolainen, Niilo Jaasko