SEALING OVERCAP FOR A CONTAINER.

摘要

An overcap (28) is provided for use in sealing a container (10) of the type having an outer rim (20), an inside wall surface, and an inner rim spaced inwardly from the inside wall surface, with the inner rim (24) forming a container opening (26). The overcap (28) includes a body portion (32) for covering the area inward of the outer rim of the container. A peripheral skirt (30) extends from the body portion and is dimensioned to surround the outer rim. A flexing portion (36) is formed within the body portion and is moveable between a first sealing position and a second sealing position. The flexing portion includes a downwardly depending wall member (46) positioned adjacent the inside wall surface of the container in the first sealing position. A sealing surface (60) is formed outwardly from the wall member and is dimensioned for engagement with the inside wall surface in the first sealing position. A sealing plug (38) is provided and is moveable between the first sealing position and the second scaling position. The sealing plug includes a peripheral surface dimension for frictional engagement with the inner rim, releasably closing of the opening in the second sealing position. The sealing plug (38) is separated from the inner rim (24) in the first sealing position. The sealing surface engages the inside wall surface in the first sealing position and movement of the sealing plug to the second sealing position causes inward movement of the wall member, separating the sealing surface from the inside wall surface.