Patents by Inventor Eddie Zon Tsu Chen

Eddie Zon Tsu Chen 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: 5745440
    Abstract: A time equipment with time zone mechanism includes a 24-hour dial, an hour hand and a minute hand mounted for rotating above said dial, a movement for driving said hour hand and minute hand to rotate one revolution per 24 hours, a time zone mechanism, and a setting mechanism for said time zone mechanism. The time zone mechanism comprises a time zone disc coaxially mounted under the dial and a driving device for driving the time zone disc to rotate one revolution per 24 hours. The time zone disc has an outer time zone ring portion disposed around the periphery of the dial and provided until a plurality of time zone city indicators arranged in the same order as the time zones.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: April 28, 1998
    Inventor: Eddie Zon Tsu Chen
  • Patent number: 5708628
    Abstract: An universal time equipment enables the user to ascertain the times of 24 time zones around the world easily, precisely and simultaneously, including a stationary dial mounted above a 24-hour movement which projects at least an hour shaft and a minute shaft therefrom, a transparent time zone disc being secured to rotate above the dial, and a minute hand mounted to said minute shaft to rotate above the time zone disc. The dial provides an outer hour indicating ring portion, an inner minute indicating ring portion adjacent to the outer hour indicating ring portion, and a central time condition indicating portion which is divided into four time conditions for facilitating the user to ascertain the time condition of the time observed. The time zone disc has 24 time zone indicators provided in the outer periphery thereof, a transparent central portion for revealing the dial underneath, and a sun mark positioned adjacent to the hour indicating ring portion and aligned with one of the time zone.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: January 13, 1998
    Inventor: Eddie Zon Tsu Chen