Patents by Inventor Luca Lenzi

Luca Lenzi 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: 10035525
    Abstract: An energy-absorbing device, in particular for a rail-car, extends along an axis and has an attachment member, which can be connected to a fixed structure, an impact member, designed to withstand an impact, and an energy-absorbing member, constituted by a first tube and a second tube, which are coaxial and are made of composite material in order to collapse and hence absorb energy in the event of impact; the first tube is fixed to the attachment member, whereas the second tube is fixed to the impact member and is axially slidable, during impact, guided by the first tube; the radial thickness of the two tubes decreases along the axis, towards their free ends; in a non-collapsed resting condition, the axial gaps present between the two free ends and the attachment and impact members are substantially the same so that the two tubes start to collapse simultaneously in the event of impact.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 31, 2018
    Assignee: HITACHI RAIL ITALY S.P.A.
    Inventors: Luca Lenzi, Angelo Surini, Samuele Pacini
  • Publication number: 20160347333
    Abstract: An energy-absorbing device, in particular for a rail-car, extends along an axis and has an attachment member, which can be connected to a fixed structure, an impact member, designed to withstand an impact, and an energy-absorbing member, constituted by a first tube and a second tube, which are coaxial and are made of composite material in order to collapse and hence absorb energy in the event of impact; the first tube is fixed to the attachment member, whereas the second tube is fixed to the impact member and is axially slidable, during impact, guided by the first tube; the radial thickness of the two tubes decreases along the axis, towards their free ends; in a non-collapsed resting condition, the axial gaps present between the two free ends and the attachment and impact members are substantially the same so that the two tubes start to collapse simultaneously in the event of impact.
    Type: Application
    Filed: February 27, 2015
    Publication date: December 1, 2016
    Inventors: Luca Lenzi, Angelo Surini, Samuele Pacini
  • Patent number: 8376101
    Abstract: A brake caliper comprising a piston seat (10) wherein a piston (2) slides with its side surface (11) in contact with a radial surface (13) of an elastic member (12). The member further comprising two axial surfaces (15,16) adapted to be affected by a pressurized fluid and being arranged at the piston coming out side facing the pads respectively. The latter surface facing with a portion (17) thereof, a first chamber (18) arranged in the proximity of the piston side surfaces, with another portion (24) thereof, an abutment surface (19) adapted to support said elastic member when it is urged by the pressurized fluid, said abutment surface being radially retracted so as to be farther from the piston side surface than said first chamber and with a further portion (25) thereof, at least one second chamber (20) arranged radially farther from said piston side surface than said abutment surface.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 19, 2013
    Assignee: Freni Brembo S.p.A.
    Inventors: Cristian Crippa, Paolo Cesani, Luca Lenzi
  • Publication number: 20110233008
    Abstract: A brake caliper comprising a piston seat (10) wherein a piston (2) slides with its side surface (11) in contact with a radial surface (13) of an elastic member (12). The member further comprising two axial surfaces (15,16) adapted to be affected by a pressurized fluid and being arranged at the piston coming out side facing the pads respectively. The latter surface facing with a portion (17) thereof, a first chamber (18) arranged in the proximity of the piston side surfaces, with another portion (24) thereof, an abutment surface (19) adapted to support said elastic member when it is urged by the pressurized fluid, said abutment surface being radially retracted so as to be farther from the piston side surface than said first chamber and with a further portion (25) thereof, at least one second chamber (20) arranged radially farther from said piston side surface than said abutment surface.
    Type: Application
    Filed: December 2, 2008
    Publication date: September 29, 2011
    Applicant: FRENI BREMBO S.P.A.
    Inventors: Cristian Crippa, Paolo Cesani, Luca Lenzi