Patents by Inventor Gian M. Sigismondi

Gian M. Sigismondi 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).

  • Process for lubricating accessories of cassettes containing magnetic tapes
    Patent number: 4746575
    Abstract: Process for protecting magnetic tapes, during their operation, from the friction and wear caused by the contact with accessories, either or not metallic, forming the cassette which contains said tapes, characterized in that said accessories are lubricated with a neutral perfluoropolyethereal fluid or with a perfluoropolyethereal fluid having functional groups at one or both ends of the polymeric chain.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: May 24, 1988
    Assignee: Ausimont S.p.A.
    Inventors: Mario A. Scarati, Carlo Tognoni, Piero Giunti, Luigi Salvioli, Gian M. Sigismondi