Patents by Inventor Zdenek Dolezal

Zdenek Dolezal 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).

  • Thermoelectrically-powered wrist watch
    Patent number: 4213292
    Abstract: A thermoelectrically-powered wrist watch in which thermal energy picked up by the metal back of the watch casing is transferred to the hot pole of an electrothermal generator housed within the casing. To avoid thermal shunts which cause heat losses and reduce the efficiency of the generator, the metal carrier for the watch movement is thermally insulated from the upper component of the casing which, in turn, is thermally insulated from the back thereof. In addition or alternatively, the casing back is partially constituted by thermal insulation material.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: July 22, 1980
    Assignee: Bulova Watch Company, Inc.
    Inventors: Zdenek Dolezal, Urs J. Hof