Plastic container for a roll-on deodorant

Patent metadata

Field	Value
Publication number	US-9456677-B2
Application number	US-201414329103-A
Country	US
Kind code	B2
Filing date	Jul 11, 2014
Priority date	Jan 11, 2012
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A plastic container for a roll-on deodorant is described, which roll-on deodorant has a receptacle and a roll cage for the captive, rotatable holding of an applicator ball. The roll cage can be made integral with the receptacle. The plastic container can be produced in an extrusion-blow-molding method from a tube that is for example extruded continuously.

First claim

The invention claimed is:

1. A plastic container, comprising:
a receptacle wherein the receptacle includes a base on a bottom of the receptacle and configured to allow the container to rest in an upright position; and
a roll cage configured for captive, rotatable holding of an applicator ball, the roll cage being integral with the receptacle and produced as an extrusion-blow-molded plastic tube, and an annular circumferential sealing area on a transition to the receptacle, wherein the roll cage at least in this sealing area has an inside layer that is softer than an outside layer of the roll cage.

2. The plastic container according to claim 1 , wherein the receptacle and the roll cage are produced as one piece from a continuously extruded plastic tube.

3. The plastic container according to claim 2 , wherein the receptacle and the roll cage molded in one piece include a cut edge due to separation of an excess plastic section in a vicinity of the roll cage by cutting after extrusion-blow-molding.

4. The plastic container according to claim 1 , wherein the sealing area is a circumferential annular collar, or facet.

5. The plastic container according to claim 1 , wherein the roll cage comprises:
at least two layers, whereby an inside layer of the roll cage is softer than an outside layer of the same.

6. The plastic container according to claim 5 , wherein the inside layer is a coextrusion layer.

7. The plastic container according to claim 6 , wherein the inside layer has a hardness that is approximately 35 Shore to 90 Shore.

8. The plastic container according to claim 7 , wherein the inside layer comprises:
plastics that are extrudable and expandable in a blow-molding process, and selected from a group consisting of polyolefins, thermoelastic elastomers, HDPE, LDPE, polyamides, copolymers as well as material mixtures containing these materials, whose hardness properties can be set to a desired extent by adding softeners.

9. The plastic container according to claim 5 , comprising:
multiple layers, whereby an outer layer includes a plastic material that is extrudable and expandable in a blow-molding process, whose hardness properties can be set by addition of softeners.

10. The plastic container according to claim 9 , wherein the outer layer is harder than the inside layer of the roll cage.

11. A roll-on deodorant applicator comprising:
the plastic container with the roll cage that is integral with a receptacle and produced as an extrusion blow-molded plastic according to claim 1 , in combination with:
an applicator ball, which is held in a rotatable and captive manner within the roll cage; and a sealing cap, whose height is sized such that an extension projecting from an interior of a cover of the sealing cap presses against the applicator ball upon fastening to the plastic container and the applicator ball seals the receptacle.

12. The roll-on deodorant applicator according to claim 11 , wherein the sealing cap is a rotary closure, configured such that when the sealing cap is screwed onto the plastic container, an increased resistance must be overcome before an end position is reached.

13. The roll-on deodorant applicator according to claim 11 , wherein the sealing cap and/or the plastic container is/are configured such that to tightly close the plastic container, a minimum torque of 30 Nm to 250 Nm must be applied.

14. The roll-on deodorant applicator according to claims 11 containing:
a deodorant.

15. The plastic container according to claim 1 , wherein the inside layer is a coextrusion layer.

16. The plastic container according to claim 5 , comprising:
multiple layers, whereby an outer layer includes a plastic material that is extrudable and expandable in a blow-molding process, whose hardness properties can be set by addition of softeners.

17. The roll-on deodorant applicator according to claim 11 , wherein the sealing cap and/or the plastic container is/are configured such that to tightly close the plastic container, a minimum torque of 60 Nm to 140 Nm must be applied.

Assignees

• Alpla Werke Alwin Lehner Gmbh & Co Kg

Inventors

• Künz Johann

Classifications

• A45D33/12

  with rollers · CPC title

• A45D40/261

  using a ball, a roller or the like · CPC title

• A45D34/041 Primary

  using a roller, a disc or a ball · CPC title

• A45D34/04

  Appliances specially adapted for applying liquid, e.g. using roller or ball · CPC title