Patents by Inventor Christian GAC

Christian GAC 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: 10074897
    Abstract: The present invention relates to an underwater radio frequency antenna able to radiate in an underwater or equivalent propagation medium. It comprises a hollow conducting tube forming a resonant cavity, said conducting tube having an open end and a closed end, means of excitation of said resonant cavity which area able to be fed with signals and are arranged in such a way that the resonant cavity emits an electromagnetic radiation through said open end, at least one layer of dielectric material filling at least partially said resonant cavity so as to close the open end of the resonant cavity and render said cavity leaktight in relation to the underwater medium and to allow said electromagnetic radiation to pass through.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: September 11, 2018
    Assignee: INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER—IFREMER
    Inventors: François Le Pennec, Christian Gac, Hector Fabian Guarnizo Mendez, Christian Person, Ronan Apprioual, Raymond Jezequel, Serge Pinel
  • Publication number: 20160365626
    Abstract: The present invention relates to an underwater radio frequency antenna able to radiate in an underwater or equivalent propagation medium. It comprises—a hollow conducting tube (1) forming a resonant cavity, said conducting tube having an open end and a closed end,—means of excitation (2) of said resonant cavity which are able to be fed with signals and are arranged in such a way that the resonant cavity emits an electromagnetic radiation through said open end,—at least one layer (4) of di-electric material filling at least partially said resonant cavity so as to close the open end of the resonant cavity and render said cavity leaktight in relation to the underwater medium, said layer being able to resist the pressure in the underwater medium and to allow said electromagnetic radiation to pass through.
    Type: Application
    Filed: October 24, 2014
    Publication date: December 15, 2016
    Inventors: François LE PENNEC, Christian GAC, Hector Fabian GUARNIZO MENDEZ, Christian PERSON, Ronan APPRIOUAL, Raymond JEZEQUEL, Serge PINEL