Tight vial assembly with one-piece cap

Details Tight vial assembly with one-piece cap Tight vial assembly with one-piece cap

B - Operations, Transporting

65

D

206/46

B65D 41/04 (2006.01) B65D 41/06 (2006.01)

Patent

CA 1247559

TIGHT VIAL ASSEMBLY WITH ONE-PIECE CAP ABSTRACT A safety container and closure assembly including an integrally-molded, one-piece plastic cap having a sealing portion which provides an "oil-can" effect during axial and rotative motion of the cap relative to the container. The seal- ing portion comprises a relatively thin, radi- ally outwardly curved wall which is integrally joined to a relatively stiff annular base por- tion from which a peripheral skirt portion axi- ally projects for receiving the mouth of the container. Integrally formed with the sealing portion is a relatively thin, annular biasing portion which, in turn, is integrally formed with a relatively stiff, inner, disc-like base portion. The biasing portion biases the sealing portion to axially spaced positions such that when the cap is placed on the container, the biasing portion biases the cap in a fixed axial sealing position relative to the container and simultaneously applies pressure to the sealing portion. Preferably, a rib comprising an O-ring seal projects inwardly on the inner surface of the mouth portion of a container and simultaneously engages the sealing portion during the axial and rotative motion of the cap rela- tive to the container.

446216

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