Patents by Inventor Alberto Randi

Alberto Randi 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).

  • Positive displacement machine with a gland for double packing seals
    Patent number: 9765771
    Abstract: A positive displacement machine comprises a cylinder inside which there are a mobile piston, at least one first and one second insulation chamber containing a respective set of gaskets, at least one first and one second gland each of which is suitable for operating on one of the sets of gaskets, each gland comprising a tubular threaded portion and a ring nut fixedly attached to the tubular threaded portion. A sleeve able to slide with respect to said cylinder has a first end in contact with the first set of gaskets and a second threaded end for receiving in engagement the tubular threaded portion of the second gland, the sleeve being slidingly engaged by the first gland, and at least one of the ring nuts being a cylindrical gear wheel with straight teeth.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: September 19, 2017
    Assignee: PERONI POMPE S.P.A.
    Inventors: Luciano Manara, Alberto Randi, Giorgio Vinciguerra
  • POSITIVE DISPLACEMENT MACHINE WITH A GLAND FOR DOUBLE PACKING SEALS
    Publication number: 20150219094
    Abstract: A positive displacement machine comprises a cylinder inside which there are a mobile piston, at least one first and one second insulation chamber containing a respective set of gaskets, at least one first and one second gland each of which is suitable for operating on one of the sets of gaskets, each gland comprising a tubular threaded portion and a ring nut fixedly attached to the tubular threaded portion. A sleeve able to slide with respect to said cylinder has a first end in contact with the first set of gaskets and a second threaded end for receiving in engagement the tubular threaded portion of the second gland, the sleeve being slidingly engaged by the first gland, and at least one of the ring nuts being a cylindrical gear wheel with straight teeth.
    Type: Application
    Filed: June 19, 2013
    Publication date: August 6, 2015
    Inventors: Luciano Manara, Alberto Randi, Giorgio Vinciguerra