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Pump dispenser and method for making same

  • US 6,053,371 A
  • Filed: 05/15/1998
  • Issued: 04/25/2000
  • Est. Priority Date: 05/15/1998
  • Status: Expired due to Term
First Claim
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1. A pump dispenser comprising:

  • a. a resilient molded hollow body having a side wall and adjacent the upper end of the sidewall an inwardly directed integral annular flap inclined downwardly, the flap meeting the side wall at an annular juncture, the flap thinning in cross-section as the juncture is approached,b. a resilient molded plunger in the body having at its lower end a piston head sealingly engaging the inside of the hollow body and having an inward upwardly facing annular shoulder and an elongated stem reduced in diameter above the head, the stem being engaged by the flap.

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