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Dispenser for a viscous fluid product operated by manual pressure on a bottom end thereof, in particular for cosmetic or pharmaceutical use

  • US 5,513,778 A
  • Filed: 07/20/1994
  • Issued: 05/07/1996
  • Est. Priority Date: 07/22/1993
  • Status: Expired due to Fees
First Claim
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1. A dispenser of viscous fluid product having a dispensing action produced by a manual pressure on a bottom surface thereof, for cosmetic and pharmaceutical use, comprising,a tubular outer body having an open top end and a partially closed bottom end with a centrally located wide aperture, said outer body externally exhibits a first annular shoulder dividing the outer body into a top portion and a bottom portion, the top portion being thinner in breadth than the bottom portion;

  • a tubular hollow recipient removably housed in the outer body, exhibiting an external wall and a tubular internal surface and being superiorly closed by a top wall affording a dispensing aperture for dispensing the product, and being open at a bottom end;

    a tubular piston, housed internally in the bottom end of the tubular recipient and provided with a lateral seal;

    said piston being mobile in a direction along the tubular internal surface when the manual pressure is applied thereupon in proximity of the aperture in the outer body at a central portion of the piston and coaxial to an axis of the aperture;

    a lid;

    first means for reciprocal and releasable engagement between the tubular recipient and the tubular outer body; and

    second means for reciprocal gripping between the tubular outer body and the lid.

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