One Piece Dispensing Lid
First Claim
Patent Images
1. A one piece dispensing lid comprising:
- an external section with a central top depression housing a diaphragm or flexible membrane, the central top depression surrounded by a perimeter flat ring limited by a rounded edge;
a round side skirt housing inside a stem and cylinder structure, the round side skirt joined by frangible elements to a security band;
an internal section with an inside skirt face having thread ribs;
a housing or container cylinder extending from the inside of the perimeter flat ring and beyond a lower edge of the security band;
a flexible diaphragm comprising three continuous concentric flat rings located in different planes, therefrom is located a tearing structure formed by a cutting cylinder with tearing spikes and a central stem, by pressing the diaphragm a seal or membrane is torn to allow free flow of an additive held in the housing or container cylinder;
a metallic sheet membrane or seal tightly closing the lower edge of the container or housing cylinder and not being integral part of the cap.
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Abstract
One-piece dispensing closure or lid molded in a single mold not requiring assembly of independent pieces, except for a seal after filling the closure with the additive. The closure has a round side skirt and security or tamper evident band, provided inside with threaded ribs, a flexible diaphragm with a tearing structure made up of a central stem and a tearing cylinder having a plurality of tearing tips to break the seal and release the additive.
39 Citations
8 Claims
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1. A one piece dispensing lid comprising:
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an external section with a central top depression housing a diaphragm or flexible membrane, the central top depression surrounded by a perimeter flat ring limited by a rounded edge; a round side skirt housing inside a stem and cylinder structure, the round side skirt joined by frangible elements to a security band; an internal section with an inside skirt face having thread ribs; a housing or container cylinder extending from the inside of the perimeter flat ring and beyond a lower edge of the security band; a flexible diaphragm comprising three continuous concentric flat rings located in different planes, therefrom is located a tearing structure formed by a cutting cylinder with tearing spikes and a central stem, by pressing the diaphragm a seal or membrane is torn to allow free flow of an additive held in the housing or container cylinder; a metallic sheet membrane or seal tightly closing the lower edge of the container or housing cylinder and not being integral part of the cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification