Patents by Inventor Frederic Evrard

Frederic Evrard 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: 11415003
    Abstract: A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 16, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Bruno Marc-Etienne Loisel, Guillaume Sylvain Frédéric Evrard, Alexandre Thanh Nhan Nguyen, Carine Thuy-Huong Pragassam
  • Publication number: 20190309638
    Abstract: A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Bruno Marc-Etienne Loisel, Guillaume Sylvain Frédéric Evrard, Alexandre Thanh Nhan Nguyen, Carine Thuy-Huong Pragassam
  • Patent number: 8968419
    Abstract: The present invention relates to a prosthesis comprising at least two pieces of knitted fabric and to the method of manufacturing it using a sonotrode to perform ultrasonic welding. The prosthesis comprises at least one first piece of knitted fabric and at least one second piece of knitted fabric, which are welded together by means of a plurality of welds situated in a joining region in which at least a portion of the said first and second pieces of knitted fabric are superposed, the said first and second pieces of knitted fabric each comprising a group of yarns extending respectively in first and second directions A and B, characterized in that the said directions A and B are substantially aligned with one another in the said joining region, and each said weld in the joining region is of elongate shape with its longitudinal axis being aligned with the said directions A and B.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: March 3, 2015
    Assignee: Sofradim Production
    Inventors: Xavier Calvez, Frèdèric Evrard
  • Publication number: 20110166494
    Abstract: The present invention relates to a prosthesis comprising at least two pieces of knitted fabric and to the method of manufacturing it using a sonotrode to perform ultrasonic welding. The prosthesis comprises at least one first piece of knitted fabric and at least one second piece of knitted fabric, which are welded together by means of a plurality of welds situated in a joining region in which at least a portion of the said first and second pieces of knitted fabric are superposed, the said first and second pieces of knitted fabric each comprising a group of yarns extending respectively in first and second directions A and B, characterized in that the said directions A and B are substantially aligned with one another in the said joining region, and each said weld in the joining region is of elongate shape with its longitudinal axis being aligned with the said directions A and B.
    Type: Application
    Filed: September 10, 2009
    Publication date: July 7, 2011
    Applicant: SOFRADIM PRODUCTION
    Inventors: Xavier Calvez, Frèdèric Evrard
  • Patent number: 6779701
    Abstract: This appliance comprises, in a tubular body (20), a magazine slide (22) secured to a needle (50) and the magazine slide (22) containing fasteners (A), an element for distributing the fasteners one by one, and an ejection plunger (42) able to push the anchoring bar (2) of the awaiting first fastener (A) into the needle. According to the invention, the magazine slide (22) comprises below the needle (50) a transverse finger (59) able, as the fastener is distributed by movement of its anchoring bar (2) by the plunger (42), to have the downstream end (3a) of this catching bar bear against it to force it to pivot by raising its upstream end (3b), beside the needle (50), a downwardly projecting rib (51) able to guide the pivoting of the upstream end (3b) of the catching bar (3) so that the latter does not butt against the needle, and, on the transverse finger (59), a sloping face (59a) driving the downstream end (3a) of the catching bar (3) transversely away from this finger.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: August 24, 2004
    Assignee: Sofradim Production
    Inventors: Pierre Bailly, Frederic Evrard, Michel Therin, Salomon Benchetrit
  • Publication number: 20030187465
    Abstract: This appliance comprises, in a tubular body (20), a magazine slide (22) secured to a needle (50) and itself containing fasteners (A), means for distributing the fasteners one by one, and an ejection plunger (42) able to push the anchoring bar (2) of the awaiting first fastener (A) into the needle.
    Type: Application
    Filed: March 3, 2003
    Publication date: October 2, 2003
    Applicant: SOFRADIM PRODUCTION
    Inventors: Pierre Bailly, Frederic Evrard, Michel Therin, Salomon Benchetrit