Patents by Inventor Sergio Santini

Sergio Santini 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).

  • Ball-point pen with means of preventing inclination of the straight portion of the ball-pressing spring
    Publication number: 20060115318
    Abstract: A ball-point pen (1) includes a reservoir (2) communicating with a hole (10) connected to a capillary channel (3) of a tip (4) which is provided with a cavity (9) which seats the ball (5) for writing, this ball (5) being kept pressed against a retaining edge (9t) of the cavity (9) as a result of the thrust of a compression resilient spring (6) terminating in a straight portion (6r) which is aligned with the longitudinal axis (N-N) of the ball-point pen (1) and the free end (6p) of which is in contact with the ball (5). In the ball-point pen (1), the capillary channel (3) has, inside it, elements (7) which, coming into contact with the straight portion (6r) of the spring (6), prevent it from becoming inclined with respect to the longitudinal axis (N-N) of the ball-point pen (1).
    Type: Application
    Filed: December 16, 2004
    Publication date: June 1, 2006
    Applicant: PREMEC S.A.
    Inventors: Sergio Santini, Donato Marotta
  • Writing instrument
    Patent number: D711470
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: August 19, 2014
    Assignee: Premec, S.A.
    Inventor: Sergio Santini