Patents by Inventor Pierre Koukjian

Pierre Koukjian 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: 7420883
    Abstract: A timepiece movement is disclosed which may comprise a going train, and a mechanism having a first cinematic connection with the going train and arranged to drive an indicator member in a stealthy rotational movement, the latter being activated periodically with a predefined period. The mechanism may also comprise a first wheel-and-pinion unit comprising a first wheel at least indirectly in engagement with the going train, a second wheel-and-pinion unit, mounted coaxially with the first wheel-and-pinion unit and, having at least one stop region and a second wheel, these being integral in rotation. A second cinematic connection connects the second wheel to the indicator member, an elastic member connecting the first wheel-and-pinion unit to the second wheel-and-pinion unit in such a way that its degree of tension is a function of respective angular positions of the first and second wheel-and-pinion units.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: September 2, 2008
    Assignee: Christophe Claret S.A.
    Inventors: Christophe Claret, Jan Dubois, Pierre Koukjian
  • Publication number: 20080106978
    Abstract: A timepiece movement is disclosed which may comprise a going train, and a mechanism having a first cinematic connection with the going train and arranged to drive an indicator member in a stealthy rotational movement, the latter being activated periodically with a predefined period. The mechanism may also comprise a first wheel-and-pinion unit comprising a first wheel at least indirectly in engagement with the going train, a second wheel-and-pinion unit, mounted coaxially with the first wheel-and-pinion unit and, having at least one stop region and a second wheel, these being integral in rotation. A second cinematic connection connects the second wheel to the indicator member, an elastic member connecting the first wheel-and-pinion unit to the second wheel-and-pinion unit in such a way that its degree of tension is a function of respective angular positions of the first and second wheel-and-pinion units.
    Type: Application
    Filed: December 5, 2005
    Publication date: May 8, 2008
    Applicant: CHRISTOPHE CLARET S.A.
    Inventors: Christophe Claret, Jan Dubois, Pierre Koukjian