Patents by Inventor Jean-Pierre Buffard

Jean-Pierre Buffard 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).

  • Publication number: 20080237241
    Abstract: A culinary article formed from a metal support and a non-stick coating deposited at least on the surface of the metal support constituting the interior of the culinary article, where the non-stick coating includes at least two coats based on fluorocarbonated resin, with one of these two coats, which covers at least the worked surface of the interior of the culinary article, being a discontinuous coat forming patterns. Any cross section of the culinary article, at least at its worked surface, has regular interruptions in the plane of the discontinuous coat, and each pattern has an area of at least 1 mm2, in a top view of the interior of the culinary article. The composition of the discontinuous coat formed by the patterns can include at least one fluorocarbonated resin, in addition to fillers.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 2, 2008
    Inventors: Jean-Pierre Buffard, Claudine Gardaz
  • Publication number: 20040261932
    Abstract: The non-stick coating of the invention comprises at least one primer layer comprising a fluorocarbon resin and inorganic particles, the primer layer being applied on a support and covered in one or more finishing layers based on fluorocarbon resin. The inorganic particles are ceramic particles having a mean diameter less than 4 &mgr;m. The coating is particularly suitable for cooking utensils.
    Type: Application
    Filed: August 20, 2004
    Publication date: December 30, 2004
    Inventors: Jean-Pierre Buffard, Claudine Gardaz
  • Patent number: 6596380
    Abstract: A non-stick coating with improved scratch resistance comprises an undercoat applied to a substrate, coated with a primary coat comprising a fluorocarbon resin and one or more fluorocarbon resin-based outer coats. The undercoat comprises at least 50% by weight of the polymer oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene, known as PEEK, and is free of fluorocarbon resin.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Seb SA
    Inventors: Jean-Pierre Buffard, Michel Fontaine, Claudine Gardaz
  • Patent number: 6551693
    Abstract: A heating appliance, such as a cooking container, has an inside surface coating including a decoration which changes color as a function of temperature. A decoration based on a thermostable resin and a chemical substance which changes color as a function of temperature is applied over a fluorocarbon resin coating on the inside of the container.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: April 22, 2003
    Assignee: SEB SA
    Inventors: Jean Pierre Buffard, Laurent Voisin, Claudine Gardaz
  • Patent number: 6382454
    Abstract: A non-stick coating with improved scratch resistance comprises an undercoat applied to a substrate, coated with a primary coat comprising a fluorocarbon resin and one or more fluorocarbon resin-based outer coats, characterized in that the undercoat is exclusively constituted by the polymer oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene, known as PEEK.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: May 7, 2002
    Assignee: SEB SA
    Inventors: Jean-Pierre Buffard, Michel Fontaine, Claudine Gardaz
  • Publication number: 20010019778
    Abstract: A multilayer non-stick coating of improved hardness for aluminum articles includes an alumina-based hard first layer obtained by anodic oxidation of the aluminum article immersed in an alkaline solution. Micro-arcs are applied to the article by means of a high current and a high potential difference. A second polytetrafluoroethylene-based layer constitutes a primer for one or more polytetrafluoroethylene-based finish layers.
    Type: Application
    Filed: January 10, 2001
    Publication date: September 6, 2001
    Applicant: SEB S.A.
    Inventors: Claudine Gardaz, Jean-Pierre Buffard
  • Patent number: 5383264
    Abstract: The process permits applying a fluorocarbonated resin base coating on a flat metallic support (4). According to the invention, this coating is applied in a continuous manner, directly on the support (4) by serigraphy. Use particularly to coat cooking utensils with a layer of fluorocarbonated resin. (See FIG. 2).
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: January 24, 1995
    Assignee: SEB S.A.
    Inventors: Claudine Gardaz, Jean-Pierre Buffard
  • Patent number: 5165184
    Abstract: A smoothing or pressing or steam iron having a metallic sole-plate that comes into contact with articles to be ironed and has a series of substantially parallel ribs (6, 7) whose width and height are within the range of a few tenths of a millimeter to a few millimeters. The sole-plate has an exposed surface having a continuous anti-adhesive coating (8) selected from the group consisting of fluorocarbon resin and enamel. The coating follows the profile of the ribs. The ribs extend in a longitudinal direction of the sole-plate. Each rib has either a rounded crest or a pointed crest.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: November 24, 1992
    Assignee: SEB S.A.
    Inventors: Claudine Gardaz, Jean-Pierre Buffard
  • Patent number: 5165185
    Abstract: The smoothing or pressing or steam iron has a metallic sole-plate (1) provided with an anti-adhesive coating (2). The sole-plate surface overf the anti-adhesive coating has a series of projections (3) formed by an anti-adhesive coating based on fluorocarbon resin, with the result that the iron glides easily over textile fabrics.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: November 24, 1992
    Assignee: Seb S.A.
    Inventors: Claudine Gardaz, Jean-Pierre Buffard
  • Patent number: 4677000
    Abstract: A method for forming a decoration on a coating of polytetrafluoroethylene (PTFE) applied on a metallic substrate as applicable in particular to internal and/or external decoration of culinary utensils, and comprising the following steps:forming an anti-adhesive layer of a composition based on an aqueous dispersion of PTFE, which may or may not be colored, on the metallic substrate,after drying and prior to sintering of the anti-adhesive layer, applying on this layer through a serigraphic screen a colored composition containing an aqueous dispersion or a powder of fluorocarbon resin to which are added a thickening and/or gelling agent and a solvent which is miscible with water and has a vapor pressure below that of water after drying,baking the two layers thus obtained simultaneously in order to sinter all the particles of PTFE and of fluorocarbon resin.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: June 30, 1987
    Assignee: SEB S.A.
    Inventors: Claudine Gardaz, Jean-Pierre Buffard