Closure device for a container
AssigneeBielsteiner Verschlusstechnik GmbH
InventorKarl-Heinz Rosenthal
Life of this patent
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Abstract
A closure device for a container is described consisting of a cap for a container and a cap lid which is pivotably mounted on the cap. The cap lid has an encircling circumferential border which projects downwardly from the upper surface of the lid. The border is a curved spherical surface segment and the cap defines a cup-shaped recess which is complementary in shape to facilitate sealing. The center of curvature of the spherical surface segment is located on the pivot axis of the cap lid. A pair of supporting plates are formed on a base portion of the cap and are guided in the pivot plane of the cap lid by parallel guide ribs so that the cap is non-rotatably mounted and pivotably mounted reliably in the recess and is sealed in every operating position relative to the container cap.
Claims19
A closure device made of plastic for a container for free-flowing substance, said closure device comprising a cap having a cover plate with a port, and a cap wall extending upwardly from said cover plate, said cap defining an upwardly open recess above said cover plate, and an upper edge at the upper edge of said cap wall, and a closure part, said closure part being pivotably supported about a pivot axis for movement between a closed position and an open position, and wherein one side of the closure part acts as an actuating member and the other side is provided with a laterally disposed outlet opening which, in the closed position of the closure part, is closed by the cap wall, with the closure part side which acts as an actuating member being located in the closed position at a distance above said upper edge,
- and wherein the closure part comprises a cap lid, said cap lid, at its periphery, having an encircling circumferential border which projects downwardly from said cap lid and into said open recess, the outer surface of said border of said cap lid being a curved spherical surface segment, the center of curvature of which spherical surface segment is located on the pivot axis of said cap lid intermediate the height of said spherical surface segment, and
- said lateral outlet opening being located beneath the underside of the cap lid and in the upper portion of the height of said encircling lid border,
- said encircling lid border being sufficiently expansive around said outlet opening to seal against said cap wall below said upper edge,
- said cap wall, below said upper edge, being provided with an encircling, undercut recess portion formed in a cup-shape complementary to said cap lid border, wherein when the cap lid is inserted into said recess, said cap lid border seats against said cup-shaped recess and is pivotably guided in said cup-shaped recess,
- and further comprising support and pivot means at the underside of the closure part, by means of which support and pivot means the cap lid is non-rotatably and pivotably suported relative to the recess base, and stop means provided in said recess against which said cap lid rests in its closed and opened positions.
Dependencies are inferred from the claim text.