Stopper-cum-metering device for the screw closure of bottles for liquids, with syringe device for drawing up metered amounts

• US 6,250,504 B1
• Filed: 10/29/1999
• Issued: 06/26/2001
• Est. Priority Date: 05/02/1997
• Status: Expired due to Fees

• Current Assignee: Project S.A.S. Di Massimo
• Original Assignee: Project SAS Di Massimo Memichelli & C
• Inventors: Maffei, Camilla
• Primary Examiner(s): JACYNA, J CASIMER
• Application Number:
  US09/423,055
• Time in Patent Office: 606 Days
• Field of Search: 141/22-24, 141/379-387, 222/41, 222/43, 222/44, 222/47-50
• US Class Current: 222/49
• CPC Class Codes: A61J 1/2065 having aligning and guiding means
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61J 1/22 with means for metering the amount of fluid
• CPC Class Codes: B01L 3/0282 mounted within a receptacle wash bottles B01L3/10

Abstract

A stopper is provided which is intended to replace the lid fitted at the production stage, for the screw closure of bottles for liquids, with a device for drawing up metered amounts of the product. A stopper includes a capsule (9) with internal thread for screwing onto the threaded neck (1A) of the bottle. The capsule (9) forms coaxially and in one piece a cylinder (12) of a syringe metering device (10). The syringe metering device(10) has a control rod (16) which is graduated to allow measurement of the suction stroke of the plunger and hence to allow measurement of the amount of liquid drawn up.

Claims

1. A stopper, intended to replace the lid fitted at the production stage, for the screw closure of bottles for liquids, with a device for drawing up metered amounts of said product, said stopper comprising a capsule (9) provided with an internal thread and forming coaxially and in one piece a cylinder (12) of a syringe metering device (10) with a graduated control rod (16) to allow measurement of the suction stroke of a plunger (14) and hence of the amount of liquid drawn up in the metering device (10), and in which there is formed, on the inside of the cylinder (12), a ridge (12X), and level with this, around the cylinder, is a cavity (18) to enable demolding of the cylinder (12);

said rod (16) having a collar (16X) cooperating with said ridge (12X).

2. Stopper as claimed in claim 1, in which a component (20) internal to the capsule (9) and positioned around the cylinder forms an annular seal (20A) that can be clamped onto the rim (1B) of the neck (1A) of the bottle by the screwing on of the capsule (9).

3. Stopper as claimed in claim 2, in which said internal component (20) forms not only the annular seal (20A) but also, around the cylinder (12), an annular lip (20C) directed toward the center of the bottle for wiping the outer surface of the cylinder (12) during withdrawal of the capsule (9);

said internal component (20) being so shaped as to engage with the neck of the bottle when the stopper is first screwed onto the neck of the bottle.

4. Stopper as claimed in claim 3, in which said internal component (20) includes a section (20B) capable of being forced into the neck (1A) of the bottle.

5. Stopper as claimed in claim 3, in which said internal component (20) includes at least one hole (24) in said lip (20C) so that differential pressures do not occur between the outside and inside of the bottle.

6. Stopper as claimed in claim 5, in which said lip (20C) essentially fits an intermediate structure (18A) between the capsule (9) and the cylinder (12) of the syringe device, so that the or each hole (24) is essentially closed when the stopper-cum-metering device (7) is in the fitted position.

7. Stopper as claimed in claim 1, in which the rod (16) comprises a plunger (14) which may either be attached or formed in one piece with the rod itself.