Patents by Inventor Claude Grondin

Claude Grondin 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).

  • Method of manufacturing honeycomb structures
    Patent number: 6830718
    Abstract: A method of manufacturing a honeycomb structure, the method comprising the steps of forming staggered cells through the entire thickness of a fiber fabric, causing loosely held pegs to penetrate into respective ones of the cells, each peg having a cross-section of size smaller than that of the corresponding cell and being made of a material that is suitable for expanding; expanding the pegs so that they fill the cells and exert pressure on the inside faces of the cells; and shrinking the pegs and then withdrawing them.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: December 14, 2004
    Assignee: Snecma Moteurs
    Inventors: Jean Pierre Maumus, Claude Grondin
  • Method of manufacturing honeycomb structures, and tooling for such manufacture
    Publication number: 20020092150
    Abstract: A method of manufacturing a honeycomb structure, the method comprising the steps of:
    Type: Application
    Filed: December 21, 2001
    Publication date: July 18, 2002
    Inventors: Jean Pierre Maumus, Claude Grondin
  • Multicaliber torpedo tube
    Patent number: 6382123
    Abstract: The invention relates in particular, to a torpedo tube having supporting devices able to support the torpedo and limit its friction when launched, such as slides. These supporting devices may be variable-geometry devices able to assume at least two positions, namely one through which there passes a circle whose diameter is equal to the maximum permissible diameter of the torpedo, and a second through which there passes a circle with a smaller diameter than the permissible diameter. These supporting devices may include inflatable bladders.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 7, 2002
    Assignee: Delegation Generale pour l'Armement
    Inventor: Claude Grondin
  • Device for controlling pivoting elements
    Patent number: 5809927
    Abstract: The invention relates to a device for controlling the kinematics of pivoting elements designed to open substantially simultaneously to allow a clear passage of a weapon in a weapon launch tube equipped with a weapon launch circuit via an air distributor on board a submarine. The invention includes on the axis of rotation of each pivoting element and on the axis of rotation of a rotary element connected to the air distributor, a mechanism for converting a rotation into a translation, a mechanism for converting a translation into a rotation, and an associated mechanism for quantifying these conversions. The mechanism for converting a translation into a rotation on the axis of rotation of the rotary element is activated by the mechanism for converting a rotation into a translation on the axis of rotation of each pivoting element in association with the quantification mechanisms.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 22, 1998
    Assignee: Etat Francais Represente Par Le Delegue General Pour L'Armement
    Inventor: Claude Grondin