Patents by Inventor Giancarlo Parma

Giancarlo Parma 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: 4574603
    Abstract: The invention relates to the technical field of combination locks, and in particular to a combination lock of the type having a plurality of combination dials which, once angularly positioned, enable a manually turnable driver element to cause translation of a bolt element by a means of a stud engageable with said combination dials.Provision is made for said stud to be rotatable coaxially with said dials and oscillably movable radially thereto. Further, said dials are defined by a ring which is split by a cut and clamped, by elastic deformation, onto a smooth surface of a hub.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: March 11, 1986
    Assignee: SERCAS s.r.l.
    Inventor: Giancarlo Parma