Patents by Inventor Stephane Gravier

Stephane Gravier 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 for producing a mechanical part provided with a plastic moulded lining and mechanical part obtained with said method
    Publication number: 20070187200
    Abstract: The method for manufacturing a mechanical part comprising a body fitted with at least one lining in plastic material, is characterized in that it consists in particular of: making the body of the part so that it comprises at least one detachable member defining, at least in part, an impression for over-moulding the lining, placing the body in a mould (25) as central core, closing the mould, injecting plastic material to mould the lining onto the body, opening the mould, removing from the mould the mechanical part comprising the body and its lining, detaching the detachable member from the body.
    Type: Application
    Filed: September 24, 2003
    Publication date: August 16, 2007
    Inventor: Stephane Gravier
  • Sealing and replenishment gasket
    Patent number: 7198275
    Abstract: The annular sealing cup with axis ?, a so-called replenishment cup, which is intended to be positioned between a hydraulic cylinder and piston and which has a <<U>> axial section and has application to braking circuits comprises: a static branch (10) defining a static sealing annular lip, a dynamic branch (12) defining a dynamic sealing annular lip, and a core (14) connecting the static (10) and dynamic (12) branches and defining a annular bead (15) opposite the lips. According to the invention, the cup is characterized in that the connecting surface (24) between the static branch (10) and the core (14), located opposite the bead (15), has a concave shape corresponding to a local reduction in the thicknesses of the static branch (10) and of the core (14) at the connecting region between the static lip and the core (14), so as to define a rotation area (21).
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: April 3, 2007
    Assignee: Freudenberg
    Inventor: Stephane Gravier
  • Seal unit with integrated connection means and mechanical assembly using said seal unit
    Publication number: 20060038352
    Abstract: The seal unit is intended to be interposed between two mechanical parts one mobile with respect to the other, the seal unit comprising a rigid body and at least one seal packing insert-moulded on the rigid body, so that the seal unit comprises at least one first sealing surface intended to cooperate with a first mechanical part and at least one second sealing surface intended to cooperate with the second mechanical part. According to the invention, the seal unit comprises connection means with at least one of the mechanical parts.
    Type: Application
    Filed: July 12, 2005
    Publication date: February 23, 2006
    Inventor: Stephane Gravier
  • Sealing and replenishment gasket
    Publication number: 20040245726
    Abstract: The annular sealing cup with axis &Dgr;, a so-called replenishment cup, which is intended to be positioned between a hydraulic cylinder and piston and which has a <<U>> axial section comprises
    Type: Application
    Filed: March 23, 2004
    Publication date: December 9, 2004
    Inventor: Stephane Gravier