Cotton pad dispenser and a method for its production

• US 9,283,128 B2
• Filed: 09/09/2011
• Issued: 03/15/2016
• Est. Priority Date: 09/10/2010
• Status: Active Grant

• Current Assignee: Eazy-Pac Danmark A/S
• Original Assignee: Eazy-Pac Danmark A/S
• Inventors: Ulrich, Hans
• Primary Examiner(s): WAGGONER, TIMOTHY R
• Application Number:
  US13/821,510
• Publication Number:
  US 20130277387A1
• Time in Patent Office: 1,649 Days
• Field of Search: 221/309
• US Class Current: 1/1
• CPC Class Codes: A61F 15/001 Packages or dispensers for bandages, cotton balls, drapes, dressings, gauze, gowns, sheets, sponges, swabsticks or towels A61F15/007 takes precedence
• CPC Class Codes: B65D 83/0847 through an aperture at the junction of two walls

Abstract

The cotton pad dispenser (1) comprises a side wall (2) extending between a top and a bottom end of the dispenser (1), and an end wall (7) near the bottom end, a plurality of disc-shaped cotton pads (9) being stacked within the dispenser. A first cut-out (3) provided in said side wall (2) extends upwards from the bottom end of the dispenser (1) so as to form an entrance into said volume through the side wall (2), and a second cut-out (4) provided in said end wall (7) extends from the first cut-out (3) such that the cut-outs (3, 4) comprise a mutual transition to form one combined withdrawal aperture (1a). The withdrawal aperture (1a) is arranged such as to enable withdrawal of a bottommost cotton pad by gripping a peripheral portion (9b) of the cotton pad (9) with an indexing finger and a thumb, and pulling the cotton pad out of the withdrawal aperture (1a) by means of deformation of the cotton pad (9).

Claims

1. A dispenser for dispensing cotton pads the dispenser comprising

a top end and a bottom end,

a side wall extending between the top and the bottom ends, and

an end wall near the bottom end,

the side wall and the end wall defining a volume adapted to accommodate a plurality of disc-shaped cotton pads stacked with mutual flat surfaces contacting each other,

wherein

the side wall is moulded in a frusto-conical shape tapering towards the top end of the dispenser, wherein opposite parts of the side wall are inclined with respect to each other with an angle (θ

) between 0.6° and

2°

.

2. A dispenser according to claim 1, wherein the side wall is moulded of a plastics material with a melt flow index (230°

/2.16 kg) of between 50 g/10 min and 120 g/10 min.

3. A method for producing a dispenser according to claim 1, the method comprising the steps of:

providing a mandrel with a frusto-conical shape tapering towards a top end of the mandrel, wherein opposite parts of the mandrel'"'"'s sides are inclined with respect to each other with an angle between 0.6° and

2°

,

moulding the side wall on the mandrel,

removing the side wall from the mandrel in a direction in which the mandrel tapers, and

providing the end wall and inserting it from the bottom end of the dispenser into the volume defined by the side wall, and securing it to the side wall.

4. A method according to claim 3, wherein the side wall is moulded from a plastics material with a tensile modulus of between 1000 MPa and 3000 MPa.

5. A method according to claim 3, wherein the dispenser further comprises:

a top end and a bottom end,

a side wall extending between the top and the bottom ends,

an end wall near the bottom end, and

a bottom part formed separately from the side wall, the bottom part comprising the end wall and a circumferential collar wall, the collar wall extending from a periphery of the end wall along at least part of an inner circumference of the supporting structure towards the bottom end of the dispenser and being attached to an inner surface of said inner circumference,

wherein the side wall and the end wall define a volume adapted to accommodate a plurality of disc-shaped cotton pads stacked with mutual flat surfaces contacting each other,

wherein a first cut-out provided in said side wall extends upwards from the bottom end of the dispenser so as to form an entrance into said volume through the side wall,

wherein a second cut-out provided in said end wall extends from the first cut-out such that the cut-outs comprise a mutual transition to form one combined withdrawal aperture,

wherein the withdrawal aperture is arranged such as to enable withdrawal of a bottommost cotton pad in said volume by gripping a peripheral portion of the cotton pad with an indexing finger of a hand, the indexing finger being inserted at the second cut-out, and a thumb of the hand, the thumb being inserted at the first cut-out, and pulling the cotton pad out of the withdrawal aperture by means of deformation of the cotton pad,

wherein the first cut-out extends from said bottom end of the dispenser in a general arc shape,

wherein the side wall at the bottom end extends beyond the end wall such as to form a supporting structure for supporting the dispenser in an upright position, the end wall being placed at a distance from the bottom end of the dispenser between 0.2 cm and 5 cm, and

wherein the cut-outs of the side wall and the end wall and provided before securing the end wall to the side wall.

6. A method according to claim 3, the method comprising the step of stacking a plurality of cotton pads within a volume defined by the side wall with mutual flat surfaces contacting each other, the side wall at the top and extending integrally into a top end wall so as to form a closed top end.

7. A method according to claim 3, wherein the side wall is mounded from a plastics material with a melt flow index (230°

/2.16 kg) of between 50 g/10 min and 120 g/10 min.

8. A dispenser according to claim 1, wherein the side wall at the bottom end extends beyond the end wall such as to form a supporting structure for supporting the dispenser in an upright position.

9. A dispenser for dispensing cotton pads, the dispenser comprising

a top end and a bottom end,

a side wall extending between the top and the bottom ends, and

an end wall near the bottom end,

the side wall and the end wall defining a volume adapted to accommodate a plurality of disc-shaped cotton pads stacked with mutual flat surfaces contacting each other, wherein

a first cut-out provided in said side wall extends upwards from the bottom end of the dispenser so as to form an entrance into said volume through the side wall, and

a second cut-out provided in said end wall extends from the first cut-out such that the cut-outs comprise a mutual transition to form one combined withdrawal aperture,

the withdrawal aperture being arranged such as to enable withdrawal of a bottommost cotton pad in said volume by gripping a peripheral portion of the cotton pad with an indexing finger of a hand, the indexing finger being inserted at the second cut-out, and a thumb of the hand, the thumb being inserted at the first cut-out, and pulling the cotton pad out of the withdrawal aperture by means of deformation of the cotton pad,

the first cut-out extending from said bottom end of the dispenser in a general arc shape,

the side wall at the bottom end extending beyond the end wall such as to form a supporting structure for supporting the dispenser in an upright position.

10. A dispenser according to claim 9, further comprising a plurality of disc-shaped cotton pads stacked within the volume with mutual flat surfaces contacting each other, the side wall and the cotton pads being provided such that when the dispenser is placed in the upright position, the remaining stack of cotton pads will move downwards by means of gravity when the bottommost cotton pad is withdrawn through the withdrawal aperture.

11. A dispenser according to claim 10, wherein

a width of the second cut-out at said mutual transition is larger or substantially equal to a corresponding width of the first cut-out at said mutual transition, such that the second cut-out at said mutual transition flushes with or extends to a distance from an edge of the first cut-out.

12. A dispenser according to claim 10, wherein the second cut-out extends from the side wall in a tapering shape to a substantially circular and centrally placed shape such as to form a keyhole-like shape.

13. A dispenser according to claim 10, wherein the side wall is made of a plastic material with a tensile modulus of between 1000 MPa and 3000 MPa.

14. A dispenser for dispensing cotton pads according to claim 9, wherein the dispenser

further comprises a bottom part formed separately from the side wall, the bottom part comprising the end wall and a circumferential collar wall, the collar wall extending from a periphery of the end wall along at least part of an inner circumference of the supporting structure towards the bottom end of the dispenser and being attached to an inner surface of said inner circumference.

15. A dispenser according to claim 14, wherein the collar wall is attached to the side wall by thermal joining such as plumbing or welding.

16. A dispenser according to claim 9, wherein

a width of the second cut-out at said mutual transition is larger or substantially equal to a corresponding width of the first cut-out at said mutual transition, such that the second cut-out at said mutual transition flushes with or extends to a distance from an edge of the first cut-out.

17. A dispenser according to claim 9, wherein the second cut-out extends from the side wall in a tapering shape to a substantially circular and centrally placed shape such as to form a keyhole-like shape.

18. A dispenser according to claim 9, wherein the side wall is made of a plastics material with a tensile modulus of between 1000 MPa and 3000 MPa.