Patents by Inventor Daniel Casthelain

Daniel Casthelain 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).

  • Method of performing arc welding between optical fibers
    Patent number: 5648007
    Abstract: The method of arc welding optical fibers includes a fusion and inter-penetration first step during which the ends subjected to the arc are fused and caused to inter-penetrate, and an alignment second step so as to continue the fusion under the control of the offset that is calculated on the basis of an image of the ends, which are not externally illuminated. The first step is an arc current control step performed in successive current increments, under the control of the brightness taken on by the ends after each increment.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: July 15, 1997
    Assignee: Alcatel Cable Interface
    Inventors: Michel Reslinger, Daniel Casthelain, Roland Hakoun