Patents by Inventor Ivan P. Nikolov

Ivan P. Nikolov 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: 4925746
    Abstract: A device for recombining hydrogen and oxygen released in maintenance-free ad-acid storage batteries as well as their electrochemical conversion is composed of electrodes employed in a stack enveloped in a sheath of microporous material with the individual electrodes also being separated by such material. The device may be employed in sealed storage batteries when connected through a diode to the negative pole of a cell of the battery. A stack of electrodes may be divided in two parts, one part connected through a diode to the negative pole and the other part connected through a diode and a resistor to the positive pole, at which time the device is immersed partially in the electrolyte of the cell. The electrodes contains a catalyst from a combination of tungsten carbide and the active or activate carbon and a polymeric binder on a support grid of lead or lead alloy, the catalyst/binder mixture having been pressed onto the support grid or forming two layers situated at the surfaces of the electrode.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: May 15, 1990
    Assignee: Zentralna la Boratoria Po Elektrochimicheski Iztochnici Na Tok
    Inventors: Dechko Pavlov, Todor V. Donchev, Ivan P. Nikolov, Veneta I. Nikolova, Geno P. Papazov, Konstantin M. Petrov