Device, provided with a puncher and a dripper, for the hermetic sealing of containers

• US 3,968,872 A
• Filed: 08/02/1974
• Issued: 07/13/1976
• Est. Priority Date: 08/03/1973
• Status: Expired due to Term

• Current Assignee: Sigma-Tau Industrie Farmaceutiche Riunite SPA (Alfasigma S.p.A.)
• Original Assignee: Sigma-Tau Industrie Farmaceutiche Riunite SPA (Alfasigma S.p.A.)
• Inventors: Cavazza, Claudio
• Primary Examiner(s): Lipman, Steven E.
• Application Number:
  US05/494,375
• Time in Patent Office: 711 Days
• Field of Search: 128/218 M, 206/219, 206/222, 215/6, 215/307, 215/309, 215/DIG. 8, 222/80, 222/83
• US Class Current: 206/222
• CPC Class Codes: B65D 47/18 for discharging drops; Droppers droppers in general B01L3/00; pipettes connected to container closures B01L3/0282
• CPC Class Codes: B65D 51/285 ruptured by a sharp element, e.g. a cutter or a piercer

Abstract

A dispenser and dispenser closure for storing two products separately in and on a necked container for eventual mixing thereof and dispensing them as a mixture. A sealed cup-shaped plug closes the container and has a bottom that is punchable or pierceable. The container contains a first material that is to be mixed with a second material contained in the cup-shaped plug externally of the container interior. A dispensing element which is a tubular punching piston is disposed slidable axially in the cup and is provided with a leading edge at an inner open end for punching or piercing the plug'"'"'s bottom for introducing the second material into the container upon being depressed. The punching piston fixed therein coaxially therewith a dispensing tube open at both ends. A removable cover closes an outer end of the tube and removed therefrom automatically upon the punching piston being displaced. The mixtue contents are dispensed through the dispensing tube by first depressing the punching piston and then inverting the container once the mixture has been effected.

Claims

1. A dispensing closure for necked containers comprising a cup-shaped plug insertable and sealable into the neck of a necked container for closing it for containing therein a material to be introduced into the container for mixing with the contents of the container, said cup-shaped plug having a punchable and pierceable bottom, a dispensing element comprising a tubular punching piston inserted in use fluid-tightly axially into said cup-shaped plug and having an inner leading edge at an open inner end adjacent the bottom of the plug bottom for punching and piercing the bottom, said piston being depressable to effect punching and piercing of said bottom for introducing the material contained in the cupshaped plug into the container, a dispensing tube of lesser diameter than said tubular punching piston fixed in the tubular punching piston extending axially therein and having open ends for dispensing mixture contents of said container after depressing of said tubular punching piston and upon inverting of said container, a removable cover mounted in use on said tubular punching piston closing the outer open end of said dispensing tube, and said cover and said plug having surfaces disposed relative to each other for engaging and removing said cover when said tubular punching piston is depressed.

2. A dispensing closure for necked containers comprising a cup-shaped plug insertable and sealable into the neck of a necked container for closing it for containing therein a material to be introduced into the container for mixing with the contents of the container, said cup-shaped plug having a punchable and pierceable bottom, a dispensing element comprising a tubular punching piston inserted in use fluid-tightly axially into said cup-shaped plug and having an inner leading edge at an open inner end adjacent the bottom of the plug bottom for punching and piercing the bottom, said piston being depressable to effect punching and piercing of said bottom for introducing the material contained in the cup-shaped plug into the container, a dispensing tube of lesser diameter than said tubular punching piston fixed in the tubular punching piston extending axially therein and having open ends for dispensing mixture contents of said container after depressing of said tubular punching piston and upon inverting of said container, and said inner leading edge of said tubular punching piston being disposed and extending axially for engaging said bottom only along a marginal edge portion and punching and deflecting the bottom downwardly while a remainder marginal edge portion thereof remains fixed on said cup-shaped plug.