Pump dispenser

  • US 7,841,494 B2
  • Filed: 03/16/2007
  • Issued: 11/30/2010
  • Est. Priority Date: 03/16/2007
  • Status: Active Grant
First Claim
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1. A pump cap for dispensing a cosmetic media from a receptacle, the receptacle having a base and an outer upright peripheral wall extending from the base to define a receptacle chamber for the cosmetic media, the upright peripheral wall terminating in an open end, said pump cap comprising:

  • a closure including a top wall which terminates in a downward depending peripheral wall, said top wall having top and bottom sides, said closure receiving the open end of the receptacle adjacent said bottom side of said top wall of the closure and within the depending peripheral wall;

    a deformable dome secured to said top wall of the closure to provide an air-tight dome chamber between said deformable dome and said top wall of said closure;

    an air pump tube for providing airflow from said dome chamber to the open top end of the receptacle when said deformable dome is compressed, said air pump tube having a top end located in the dome chamber and a bottom end located in the receptacle chamber, said top end being flared out;

    an air intake tube comprising a first air intake chamber running in a direction substantially parallel to the top wall of the closure and communicating with said peripheral wall of said closure, and a second air intake chamber communicating with said first air intake chamber and with said dome chamber, said second air inlet chamber being disposed perpendicularly to said first air inlet chamber, and being in communication with said first inlet chamber and said dome chamber, said air intake tube providing airflow from outside the dispenser to said dome chamber when deformable dome is released from a compressed to a non-compressed state; and

    an outlet chamber for dispensing cosmetic media from the receptacle, said outlet chamber communicating between a media outlet opening on the peripheral wall of said closure, and a receptacle chamber media opening located on the bottom side of the top wall of said closure, said receptacle chamber media opening being flush against the bottom side of the top wall of the closure;

    such that the dispenser can be held in one hand and cosmetic media may be dispensed by successively compressing and releasing said deforming dome.

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