Closure for monodose bottles and the like, comprising a reservoir provided with a breakable bottom

• US 5,038,951 A
• Filed: 04/18/1989
• Issued: 08/13/1991
• Est. Priority Date: 04/18/1988
• Status: Expired due to Fees

• Current Assignee: Napoleone Rizzardi
• Original Assignee: Napoleone Rizzardi
• Inventors: Rizzardi, Napoleone
• Primary Examiner(s): Marcus, Stephen
• Assistant Examiner(s): STUCKER, NOVA E
• Application Number:
  US07/340,560
• Time in Patent Office: 847 Days
• Field of Search: 206/222, 215/DIG. 8, 215/251, 215/252, 215/256
• US Class Current: 215/256
• CPC Class Codes: B65D 51/285 ruptured by a sharp element, e.g. a cutter or a piercer
• CPC Class Codes: Y10S 215/08 Mixing

Abstract

A closure of plastic material for monodose bottles and the like, provided with a reservoir (2) with a breakable bottom (3) housed in the neck (4) of the bottle (5) and showing an annular upper edge (6) superimposed to the annular edge (7) of the bottle opening; with a cylindrical element (8) with its lower end (9) sideways cut inserted into the reservoir (2) and including further a sealing cap (10) positioned around the bottle neck (4) and covering said cylindrical element (8), a weakening line apt to allow the tearing removal being provided in said cap.

Claims

1. A closure of a plastic material for monodose bottles and the like provided with a reservoir located in a bottle neck and having an upper annular edge superimposed onto an annular edge of a bottle opening, and a breakable bottom, and a cylindrical element inserted in the reservoir and having a sideways cut lower end, said closure comprising a sealing cap positioned around the bottle neck and covering the cylindrical element, said sealing cap having a flat wall, an upright extending cover, a tubular projection extending inwardly of said flat wall and having an inner end engaging the upper annular edge of the reservoir, a first weakening circular line separating said flat wall from said cover for enabling opening of said sealing cap, and a second weakening line extending substantially upright along a whole height of said cover and connected with said first weakening line.

2. A closure as set forth in claim 1, wherein said sealing cap comprises a gripping tongue arranged adjacent to the second weakening line and having a free end and a bridge connecting said free end with said cover.

3. A closure as set forth in claim 1, wherein said cover is provided on an inside thereof with one of a continuous annular raising and a discontinuous annuular raising for engaging the bottle annular edge and having a chamfered portion that engages the bottle annular edge upon placing the cap over the bottle.

4. A closure as set forth in claim 3, wherein said raising comprises a solid portion.

5. A closure as set forth in claim 1, wherein said cover has a lower edge extending beyond the bottle annular edge.

6. A closure as set forth in claim 5, wherein said lower edge of said cover engages a shoulder of the bottle.