Patents Assigned to SISMA S.P.A.
  • Patent number: 11673327
    Abstract: The present invention concerns an apparatus for 3D printing of bottom-up photo-curing type, comprising a light source (26) above which a tank (10) containing a photo-curing liquid material (24) is placed inside which it is immersed an extraction plate (25), which is equipped with moving means with alternating rectilinear motion, along a direction perpendicular to the bottom of said tank (10) from a position at a distance from the bottom of said tank (10) equal to the thickness of a layer obtainable by photo-curing of said photo-curing liquid material (24), the bottom (14) of said tank (10) being constituted by an elastic membrane (23) transparent to the radiation of said light source (26), said tank (10) being positioned in correspondence with a hole (13) of a support plate (12), said hole being provided with a rigid support (11), transparent to the radiation of said light source (26), wherein said rigid support (11) is provided with means for displacing with respect to said hole (13), from a position in whic
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 13, 2023
    Assignee: Sisma S.p.A.
    Inventors: Gianni Zitelli, Federico Iacovella, Vittorio Gaudino, Massimo Petrilli
  • Patent number: 11485076
    Abstract: A modelling head for a three-dimensional printing machine, comprising a base body having a work surface suitable for enabling the formation and adhesion of an object, a support device connected to said base body and a movement member for moving said base body, wherein the support device is adjustable so as to change the orientation of the base body and in particular of the work surface relative to the movement member and is configured to switch, in an automated manner, from an unlocked configuration, in which it allows a change in the orientation of the base body relative to the movement member, and a locked configuration in which it locks the configuration assumed by the base body relative to the movement member.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 1, 2022
    Assignee: SISMA S.p.A.
    Inventors: Gianni Zitelli, Federico Iacovella
  • Publication number: 20210023784
    Abstract: The present invention concerns an apparatus for 3D printing of bottom-up photo-curing type, comprising a light source (26) above which a tank (10) containing a photo-curing liquid material (24) is placed inside which it is immersed an extraction plate (25), which is equipped with moving means with alternating rectilinear motion, along a direction perpendicular to the bottom of said tank (10) from a position at a distance from the bottom of said tank (10) equal to the thickness of a layer obtainable by photo-curing of said photo-curing liquid material (24), the bottom (14) of said tank (10) being constituted by an elastic membrane (23) transparent to the radiation of said light source (26), said tank (10) being positioned in correspondence with a hole (13) of a support plate (12), said hole being provided with a rigid support (11), transparent to the radiation of said light source (26), wherein said rigid support (11) is provided with means for displacing with respect to said hole (13), from a position in whic
    Type: Application
    Filed: March 27, 2019
    Publication date: January 28, 2021
    Applicant: Sisma S.p.A.
    Inventors: Gianni ZITELLI, Federico IACOVELLA, Vittorio GAUDINO, Massimo PETRILLI
  • Patent number: 10464166
    Abstract: A system (1) for viewing an area (2) for processing materials using laser apparatuses, including acquisition apparatus (6) configured for acquiring one image at a time of the processing area (2) and for generating an acquisition signal (8) containing the data relating to each image acquired. The system (1) includes a screen (9) for viewing the images acquired connected to the acquisition apparatus (6) and configured to receive the acquisition signal (8) and to make visible to the users the images contained therein. More specifically, the system (1) is configured for displaying on the display screen (9) the last image acquired in a pause period (TP) from the laser emission and to keep displayed on the screen the last image acquired during the subsequent obscuring period (TSTOP).
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: November 5, 2019
    Assignee: SISMA S.P.A.
    Inventors: Franco Beber, Federico Cumerlato
  • Patent number: D915477
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 6, 2021
    Assignee: SISMA S.P.A.
    Inventor: Alessandro Sbabo
  • Patent number: D916147
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 13, 2021
    Assignee: SISMA S.P.A.
    Inventor: Alessandro Sbabo
  • Patent number: D916148
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 13, 2021
    Assignee: SISMA S.P.A.
    Inventor: Alessandro Sbabo