CONTAINER CAP FORMING A RESERVOIR FOR ADDITIVE

• US 20100301002A1
• Filed: 04/30/2008
• Published: 12/02/2010
• Est. Priority Date: 05/14/2007
• Status: Abandoned Application

• Current Assignee: DELO
• Original Assignee: DELO
• Inventors: Deperrois, Marguerite, Deperrois, Vincent
• Application Number:
  US12/600,210
• Publication Number:
  US 20100301002A1
• Time in Patent Office: Days
• US Class Current: 215/228
• CPC Class Codes: B65D 51/2842 said element being provided with a preformed weakened line B65D51/2821 takes precedence

Abstract

A dose cap for an additive for adding to a liquid contained in a container having a neck suitable for receiving a screw cap that includes a first part in the form of a cover possessing an end wall and a side skirt having its end remote from the end wall provided with an inside thread, and a second part in the form of a cup with an end wall and a side skirt, the cup and the cover possessing first snap-fastener device that co-operates to hold the cup in the cover in a first relative axial position with leaktight peripheral contact between them, a spacer extending inside the skirt of the cup from the end wall thereof towards the end wall of the cover to form an abutment limiting penetration of the cup into the cover beyond said first position, and said spacer including a device for breaking the end wall of the cup when the cap is forced to penetrate into the cover beyond said first position by thrust from the rim of the neck.

Claims

1. A dose cap for an additive for adding to a liquid contained in a container having a neck suitable for receiving and retaining a cap via an external portion in relief, wherein the cap comprises

a first part in the form of a cover possessing an end wall and a side skirt with the end thereof remote from the end wall being provided internally with fastener means for co-operating with the outside portion in relief on the neck and a second part in the form of a cup with an end wall and a side skirt, the cup and the cover possessing first snap-fastener means that co-operate to hold the cup in the cover in a first relative axial position with leaktight peripheral contact between them, a spacer extending inside the skirt of the cup from the end wall thereof towards the end wall of the cover to form an abutment limiting penetration of the cup into the cover beyond said first position, said spacer constituting means for breaking the end wall of the cup when the cap is forced to penetrate into the cover beyond said first position by thrust from the rim of the neck.

2. A cap according to claim 1, wherein the outside portion in relief on the neck and the fastener means of the skirt of the cover are formed by screw threads.

3. A cap according to claim 1, wherein the spacer is adjacent to the skirt of the cup, the end wall having a line of weakness in the vicinity of said location, the line of weakness extending along the junction between the end wall and the skirt.

4. A cap according to claim 2, wherein the outside diameter of the skirt of the cup is substantially identical to the diameter at the crest of the thread at the end of the skirt of the cover.

5. A cap according to claim 1, wherein when the cup is in its above-mentioned first position, the periphery of the outside surface of the end wall of the cup is surrounded by the end edge of the skirt of the cover and furthermore it is level therewith.

6. A cap according to claim 1 wherein the cover and the cup possess corresponding second snap-fastener means that co-operate to hold the cup in the cover in the second relative axial position thereof when the end wall of the cup has been broken.

7. A cap according to claim 6, wherein the second snap-fastener means are constituted by a groove formed at the end of the skirt of the cover close to its end wall and by an outside bead bordering the free end of the skirt of the cup.

8. A cap according to claim 1, wherein the skirt of the cup possesses a first axial section extending from its end wall, having a first outside diameter that is less than the outside diameter of a second axial section that surmounts the first section up to the free end of said skirt.

9. A cap according to claim 8, wherein the difference between the diameters of the two sections of the skirt of the cup is substantially equal to twice the thickness of the wall that forms the skirt, with the smaller diameter being substantially equal to the inside diameter of the above-mentioned neck of the container.

10. A cap according to claim 9, wherein the outside portion in relief on the neck and the fastener means of the skirt of the cover are formed by screw threads, and wherein the length of the first above-mentioned section is sufficient to enable the thread of the skirt of the cover to engage with the thread of the above-mentioned neck of the container.