Patents by Inventor Jean-Francois Lescure

Jean-Francois Lescure 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: 9366490
    Abstract: In the field of feeding ammunition to a firearm there is disclosed a flexible chute including successive sections (2) linked by portions of walls (111, 112, 131) at the transverse faces thereof and including at least one tubular section (2) of axis G with a first portion of wall (111, 112) integral with one of the two transverse faces thereof and a second portion (131) of wall integral with the other transverse face, characterized in that the projections of these portions of wall, perpendicular to a transverse plane of the section, are at least partially separate.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: June 14, 2016
    Assignee: ETAT FRANCAIS REPRESENTE PAR LE DELEGUE GENERAL POUR L'ARMEMENT
    Inventor: Jean-Francois Lescure
  • Publication number: 20150233658
    Abstract: In the field of feeding ammunition to a firearm there is disclosed a flexible chute including successive sections (2) linked by portions of walls (111, 112, 131) at the transverse faces thereof and including at least one tubular section (2) of axis G with a first portion of wall (111, 112) integral with one of the two transverse faces thereof and a second portion (131) of wall integral with the other transverse face, characterized in that the projections of these portions of wall, perpendicular to a transverse plane of the section, are at least partially separate.
    Type: Application
    Filed: September 19, 2013
    Publication date: August 20, 2015
    Applicant: ETAT FRANCAIS REPRESENTE PAR LE DELEGUE GENERAL POUR L'ARMEMENT
    Inventor: Jean-Francois Lescure
  • Patent number: 5604326
    Abstract: A striker device for a firearm of the type having a loading chamber for a munition includes a detonator cap provided with a percussion cap and a translationally movable assembly comprised of a striker equipped with a striker tip and associated with a part or valve in which the striker is axially guided and that is itself guided in axial displacement in a passage of a striker body located to the rear of the loading chamber. The striker and valve are respectively mounted by the front and rear faces of striker body and joined to each other by a removable connector of the bayonet type.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: February 18, 1997
    Assignee: Giat Industries
    Inventor: Jean-Francois Lescure
  • Patent number: 5535661
    Abstract: A mechanism for transmitting torque between a drive shaft and an output shaft including a mechanical control element which causes an angular phase offset between the shafts. The mechanism includes a coupling element joining the shafts together. The coupling element includes a member capable of angular travel relative to a first of the shafts which, when mechanically controlled, provides the angular phase offset and control of the travel causing mutual drive of the shafts.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: July 16, 1996
    Assignee: Giat Industries
    Inventors: Jean-Francois Lescure, Julien Jimenez
  • Patent number: 5353678
    Abstract: An automatic gun for firing telescoped cylindrical ammunition, the gun comprising a sleeve for supporting a barrel, a breech, and a rear box which are all rigidly connected together by beams, the gun including a chamber disposed between the breech and the barrel and mounted to swing by pivoting about an eccentric shaft, and further including means carried by the breech and the rear box to feed ammunition to the chamber.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: October 11, 1994
    Assignee: Giat Industries
    Inventors: Marc Rochelle, Jean-Francois Lescure, Julien Jimenez
  • Patent number: 5231243
    Abstract: Control and safety device for an externally powered automatic weapon include at least one rotor driven by a motor and have a stop cooperating with a locking part. The device has both a detent lever to control firing and a second lever subjected to the action of a rotating finger driven by the recoil of the weapon. The detent lever and the second lever are connected to the locking part by a system of slides and links which automatically stop the rotor by way of the locking part if ammunition should malfunction.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: July 27, 1993
    Assignee: Giat Industries
    Inventor: Jean-Francois Lescure