Patents by Inventor Didio Allegretti

Didio Allegretti 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).

  • Front mechanical seal for pumps
    Patent number: 8220801
    Abstract: A front mechanical seal for pumps with frictional rings and fluid lubrication includes a rotary seal mounted on a support collar, which is formed of a first collar, and a second collar prismatically coupled by means of one or more tongues which are formed on the second collar and contained in corresponding housings on the first collar.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: July 17, 2012
    Assignee: Meccanotecnica Umbra S.p.A.
    Inventors: Didio Allegretti, Daniele Ficorilli
  • FRONT MECHANICAL SEAL FOR PUMPS
    Publication number: 20100259012
    Abstract: The present invention relates to a front mechanical seal for pumps with frictional rings and fluid lubrication, of the type comprising a ‘rotary seal’ (B) mounted on a support collar, formed of a first collar (1) and a second collar (2) prismatically coupled by means of one or more tongues (3) obtained on the second collar (2) and contained in corresponding housings (4) obtained on the first collar (1).
    Type: Application
    Filed: December 11, 2008
    Publication date: October 14, 2010
    Inventors: Didio Allegretti, Ficorilli Daniele