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Push-up dispenser suitable for dilatant materials

  • US 5,833,382 A
  • Filed: 08/19/1996
  • Issued: 11/10/1998
  • Est. Priority Date: 08/19/1996
  • Status: Expired due to Term
First Claim
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1. A dispensing container with a highly viscous antiperspirant formulated material stored therein, the container comprising:

  • a generally tubular housing having an upper end and an inner surface;

    a top secured to said upper end of said housing and having multiple restricted dispensing openings;

    a platform having a peripheral edge sealingly engaging said inner surface of said housing and configured with a wiper and a bead projecting from said peripheral edge for reciprocal axial movement within said housing, said peripheral edge slidingly guided by said inner surface of said housing for supporting said platform at a desired position within said housing, said platform configured for being slidably advanced toward said dispensing openings by exertion of force by a user, said force compressing the material against the top, and upon release of said force, said platform configured to slidably move in a reverse direction to relieve residual stress in the material;

    a replaceable cap engaging said upper end of said housing, said cap having a tight friction fit with said housing to trap a volume of air when engaging said housing, said trapped volume of air being sufficient to retract said platform axially away from said top to further relieve residual stress in the material; and

    a dilatant soft-solid which is the antiperspirant formulated material contained in said housing upon said platform.

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