Patents by Inventor Alfredo Berti

Alfredo Berti 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).

  • Thermally insulated pipe for the construction of underwater pipelines
    Patent number: 4560188
    Abstract: The present invention relates to a thermally insulated pipe for the construction of underwater pipelines, characterized by being formed from prefabricated pipe portions welded together, each portion being constituted by two concentric tubes of different diameter which are connected together at their ends by means of special cylindrical pieces having a double T section which are welded to the two tubes in such a manner as to form between them an annular interspace which is filled with thermally insulating material.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: December 24, 1985
    Assignee: Snamprogetti S.p.A.
    Inventors: Alfredo Berti, Werther Mussati, Roberto Bruschi
  • Device for laying underground or digging up subsea conduits
    Patent number: 4479741
    Abstract: A self-propelling device for burying and digging up subsea conduits laid on beds of an incoherent material. The device has:disintegrating members using high pressure water jets to create a slurry of material,digging members having suction members which draw the suspension prepared by the disintegrating members, thus leaving a trench behind, anddisplacement members for moving the device on the seabed astride the conduit.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: October 30, 1984
    Assignee: Snamprogetti S.p.A.
    Inventors: Alfredo Berti, Attilio Ilari
  • Adjustable apparatus for supporting a pipe, laid on a deep sea bed, at a depression in the sea bed
    Patent number: 4252466
    Abstract: This invention relates to an adjustable apparatus for supporting a pipe, laid on a deep sea bed, at a depression in the sea bed. The apparatus according to the invention comprises an upper floating caisson provided with support legs and a lower support structure comprising guide tubes for said legs. The guide tubes are rigidly connected by cross members, which can be rotated from a rest position to a work position, in which they support the pipe.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: February 24, 1981
    Assignee: Snamprogetti, S.p.A.
    Inventors: Alfredo Berti, Antonio Rognoni