Closure for a bottle or the like equipped with a dropper

• US 4,773,551 A
• Filed: 07/08/1987
• Issued: 09/27/1988
• Est. Priority Date: 07/31/1986
• Status: Expired due to Fees

• Current Assignee: Capsult SPA
• Original Assignee: Capsulit S.p.A.
• Inventors: Rizzardi, Napoleone
• Primary Examiner(s): Marcus, Stephen
• Assistant Examiner(s): Stucker, Nova
• Application Number:
  US07/073,693
• Time in Patent Office: 447 Days
• Field of Search: 222/420, 222/421, 222/566, 222/567, 215/228, 215/252, 215/253, 215/274
• US Class Current: 215/253
• CPC Class Codes: B65D 47/18 for discharging drops; Droppers droppers in general B01L3/00; pipettes connected to container closures B01L3/0282

Abstract

A safety closure for a bottle or the like equipped with a dropper, comprising a dropper (4) having near its base an annular projection (5) bearing on the edge of the mouth of the bottle (1), a cap (9) enclosing the dropper and having at its base a collar (11) which lies over said annular projection (5) of dropper (4) and is pressed down onto this latter by the flat top part (14) of a safety strap (13) rolled around the neck (2) of the bottle, wherein said cap (9) and said collar (11) have means (17-19) for engagement of these two elements with one another, which means (17-19) ensure that the cap is kept in place after a first utilization, the collar (11) further having means for engagement with said saftey strap (13).

Claims

1. A safety closure for a bottle or the like equipped with a dropper, comprising:

a dropper (4) having a lower portion with an annular projection for bearing on an edge of a mouth of a bottle (1);

a cap (9) enclosing said dropper and having a base with a collar (11) extending over said annular projection (5) of the dropper (4); and

means for keeping said collar (11) pressed down on said annular projection (5) and including an upper flat portion (14) of a safety strap (13) on said collar, said safety strap extending from said upper flat portion (14) so as to be rollable around a neck (2) of the bottle (1), both said cap (9) and said collar (11) having first engaging means (17-19) provided thereon for engagement with each other so that that said cap can be kept in place after a first utilization, said collar further including second engaging means for engagement with said safety strap (13).

2. The closure according to claim 1, wherein said first engaging means have projections (17) perimetrally extending from a lower part of the cap (9) and fitting as is in a bayonet joint below an annular inner projection (19) on the collar (11) after having been received in associated recesses (18) formed in said projection (19).

3. The closure according to claim 1, wherein said second engaging means includes an upper over-turned edge extending from said collar (11) and overlapping said flat top portion (14) of said strap (13).

4. The closure according to claim 1, wherein the cap (9) and the collar (11) are integrally connected with one another by joining zones (12) which are broken off at the time when a first utilization is effected.

5. The closure according to claim 1, wherein annular raised zones (16) are provided near the base of the dropper (4) and are such as to interfere with the inner surface of the cap (9).

6. The closure according to claim 1, wherein a stake (10) is provided on the bottom of the cap (9) and is arranged to fit into a cavity (7) at the upper end of the dropper (4) so as to provide a tight seal therein.

7. The closure according to claim 2, wherein said second engaging means includes an upper over-turned edge extending from said collar (11) and overlapping said flat top portion (14) of said strap (13).

8. The closure as defined in claim 1, wherein said cap (9) and said collar (11) are composed of plastic material so that said dropper (4) can effectively withstand any squeezing force that could be applied unintentionally thereto.

9. A bottle and a safety closure equipped with a dropper for the bottle, comprising:

a bottle (1) having a neck (2) and a mouth with an edge;

a dropper (4) having a lower portion with an annular projection bearing on said edge of said mouth of said bottle (1);

a cap (9) enclosing said dropper and having a base with a collar (11) extending over said annular projection (5) of the dropper (4); and

means for keeping said collar (11) pressed down on said annular projection and including an upper flat portion (14) of a safety strap (13) on said collar (11), said safety strap (13) further extending from said upper flat portion (14) so as to be rolled around said neck (2) of said bottle (1), both said cap (9) and said collar (11) having first engaging means (17-19) provided thereon for engagement with each other so as to ensure that said cap can be kept in place after a first utilization, said collar (11) further including second engaging means (17-19) for engagement with said safety strap (13).

10. A closure arrangement, comprising:

a dropper (4) having a lower portion with an annular projection;

a cap (9) enclosing said dropper and having a base with a collar (11) extending over said annular projection (5) of the dropper (4);

a safety strap having an upper flat portion (14); and

means for keeping said collar (11) pressed down on said annular projection (5) by said upper flat portion (14) and including an upper over-turned edge (15) extending from said collar (11) and overlapping said upper flat portion (14) of said safety strap (13) so as to retain said cap (9) to said strap (13).

11. The closure arrangement as defined in claim 10;

and further comprising;

means for ensuring that said cap (9) is firmly kept in place after a first utilization and including means (17-19) provided on said cap (9) and said collar (11) for engaging each other after one of said cap (9) and said collar (11) is rotated relative to the other.

12. The closure arrangement as defined in claim 11;

and further comprising;

a bottle having a neck (2) with a neck shoulder (3), said dropper (4) being fitted into said neck (2), said collar (11) being formed integral with said cap (9) by junctions (12) which break apart during the first utilization, and said safety strap (13) being roller against said neck shoulder (3).