Patents by Inventor Michel Vandromme

Michel Vandromme 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: 5752627
    Abstract: A pump-type device for distributing or spraying a product has first and second chambers which receive the product and a distribution fluid (gas), respectively. First and second pistons pressurize the product and the distribution fluid in the chambers as the movable member of the pump assembly begins moving in a first (downward) direction, then distribution passageways are opened to allow discharge of the product and the distribution fluid. Reverse movement of the movable member allows a subsequent dose of the product and distribution fluid to refill the chambers. The device is particularly well suited for spraying of relatively viscous products.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: May 19, 1998
    Assignee: Sanofi (societe anonyme)
    Inventors: Michel Vandromme, Charles Pileur
  • Patent number: 5722436
    Abstract: An assembly for the storage and application of a cosmetic product. The assembly includes: a body which is provided with an opening and includes a reservoir capable of containing the product; an applicator capable of coming into contact with the product and of being charged with a given amount thereof and retaining structure for ridding the applicator of excess product. The applicator has a rod carrying a product-application structure which is to apply the product, the structure for retaining the product being connected to the body and/or to the rod. The field of use of the invention is that of cosmetics, more especially that of "mascaras" to be applied to eyelashes.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: March 3, 1998
    Assignee: Sanofi
    Inventors: Michel Vandromme, Charles Pileur
  • Patent number: 5518375
    Abstract: The device concerned is for pumping a fluid, and it comprises a piston (206) movable in a metering chamber (208). This piston is driven by a motor through coupling means which include a rotating head (236), provided with a guide path (238) at least locally slanting relative to the axis of the device, as well as a driving part (240) connected with the piston and moving along the guide path.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: May 21, 1996
    Assignee: Yves Saint Laurent Parfums
    Inventors: Michel Vandromme, Charles Pileur
  • Patent number: 5483981
    Abstract: The invention relates to a casing including an enclosure with its cover having a hinge a spring for controlling the opening of the cover and a mechanism for cushioning the opening movement of the cover. The mechanism for cushioning the open movement includes at least one substantially resilient foam block and/or flexion spring disposed in the casing so as to act during the substantial portion of the opening travel of the cover whilst absorbing the energy imparted thereto for its opening.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: January 16, 1996
    Assignee: Yves Saint Laurent Parfums (Societe Anonyme)
    Inventors: Michel Vandromme, Charles Pileur
  • Patent number: 5253788
    Abstract: Device for dispensing and dosing a product, comprising a first valve disposed across the aperture of the receptable; a slide system comprising a fixed part and a movable part including a piston sliding into a zone of said fixed part delimiting externally a dosing chamber, said piston having therethrough a passage for the communication of said dosing chamber with the outside; and a second valve associated with said piston for opening the communication between said dosing chamber and the outside when said piston slides down for compressing the product contained in said chamber and closing off said communication when the piston is slides up.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: October 19, 1993
    Assignee: Yves Saint Laurent Parfums
    Inventors: Michel Vandromme, Charles Pileur