Patent ID: 8517997
Filing Date: 2013-08-27
Classification: A61J,A61M,B29C,B29L

Abstract:
1. A dispenser assembly, comprising: an elongated barrel having an internal cross-sectional diameter, and an elongated plunger having a hollow tip portion positioned within the barrel and a body portion extending from the tip portion and terminating at an upper end positioned externally from the barrel, wherein a flexible sealing lip is formed on the hollow tip portion, the body portion comprises a hollow, circular cylinder that extends from the hollow tip portion and is outwardly flared at the upper end to form a flange that is operable as a finger grip, the hollow tip portion and the hollow cylinder define a closed interior volume that opens through the flared upper end of the body portion, the sealing lip has an outer diameter in a relaxed state that is greater than the internal cross-sectional diameter of the barrel, and when the plunger and barrel are actuated axially relative to one another, the sealing lip flexes inwardly and provides the sole contact between the plunger and the barrel.