DISPENSER ASSEMBLY WITH PLUNGER HAVING BEADED PORTION
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United States of America Patent
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Issued Date -
Aug 25, 2011
app pub date -
Feb 24, 2010
filing date -
Feb 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A dispenser assembly for liquid products is disclosed. Such a dispenser assembly may include an elongated barrel, and an elongated plunger positioned therein with the elongated plunger having a flexible sealing lip disposed at an end thereof. The sealing lip may have a beaded portion providing for easier movement of the plunger within the barrel while creating an effective seal between the plunger and the barrel. In an embodiment, the cross-section of the beaded portion is oval and the thickness of the flexible sealing lip tapers inwardly towards it distal end. The flexible sealing lip may be curved in the shape of an arc of a circle.
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