Capsule having a liquid transporting element for uses with an electronic smoking device

• US 10,440,997 B2
• Filed: 10/12/2015
• Issued: 10/15/2019
• Est. Priority Date: 10/17/2014
• Status: Active Grant

• Current Assignee: Fontem Ventures BV (Imperial Tobacco Group PLC)
• Original Assignee: Fontem Holdings 1 BV (Imperial Tobacco Group PLC)
• Inventors: Borkovec, Vaclav, Collins, Fiona, Davidson, Shona, Rowbotham, Andrew
• Primary Examiner(s): Hyeon, Hae Moon
• Application Number:
  US15/519,475
• Publication Number:
  US 20170231286A1
• Time in Patent Office: 1,464 Days
• Field of Search: 131329, 131328
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/42 Cartridges or containers for inhalable precursors
• CPC Class Codes: A61M 15/0028 using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
• CPC Class Codes: A61M 15/0033 Details of the piercing or cutting means
• CPC Class Codes: A61M 15/06 Inhaling appliances shaped like cigars, cigarettes or pipes
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: B65B 3/04 Methods of, or means for, filling the material into the containers or receptacles
• CPC Class Codes: B65B 7/28 by applying separate preformed closures, e.g. lids, covers
• CPC Class Codes: B65D 47/36 Closures with frangible parts adapted to be pierced, torn, or removed, to provide discharge openings B65D51/18 takes precedence; caps with piercable membranes B65D41/20, B65D41/50

Abstract

A capsule for use with an electronic smoking device includes a shell (105) having a lateral wall (101, 102) and an end wall (103), wherein the lateral wall (101, 102) and the end wall (103) defines a cavity (110) open at one end (111). A puncturable membrane (104) seals the open end (111) of the cavity (110). A liquid is contained within the cavity (110) by the shell (105) and the puncturable membrane (104), wherein a liquid transporting element (120) is arranged within the cavity (110) enclosed by the puncturable membrane (104) and immersed in the liquid.

Claims

1. A capsule for use with an electronic smoking device, the capsule comprising:

a shell having a lateral wall and an end wall, the lateral wall and the end wall defining a cavity open at one end;

a puncturable membrane sealing the open end of the cavity defined by the end wall and the lateral wall;

a liquid contained within the cavity by the shell and the puncturable membrane; and

a liquid transporting element arranged within the cavity enclosed by the puncturable membrane and immersed in the liquid, the liquid transporting element comprising fibres of an inorganic material defining passages between the fibres for transporting the liquid.

2. The capsule according to claim 1, wherein the liquid transporting element comprises fibres of different thickness.

3. The capsule according to claim 1, wherein the fibres are provided in groups and the groups of fibres are braided to form a rope.

4. The capsule according to claim 1, wherein the cavity has a longitudinal axis and the fibres are substantially oriented in a direction parallel to the longitudinal axis.

5. The capsule according to claim 1, wherein the fibres of the liquid transporting element comprise an inorganic material based on silicon oxide.

6. The capsule according to claim 1, wherein the fibres of the liquid transporting element comprise a glass material.

7. The capsule according to claim 1, wherein a length of the liquid transporting element in a direction from the end wall of the shell to the puncturable membrane enclosing the open end of the cavity is shorter than the distance from the end wall of the shell to the puncturable membrane.

8. The capsule of claim 1 with the liquid transporting element having a center portion with first pores having a first pore size, the center portion being surrounded by an outer portion with second pores having a second pore size different from the first pore size.

9. The capsule of claim 1 with the liquid transporting element having an axially inhomogeneous pore size distribution.

10. The capsule of claim 1 with the liquid transporting element having a radially inhomogeneous pore size distribution.

11. A capsule for use with an electronic smoking device, the capsule comprising:

a shell having a lateral wall and an end wall, the lateral wall and the end wall defining a cavity open at one end;

a puncturable membrane sealing the open of the cavity defined by the end wall and the lateral wall;

a liquid contained within the cavity by the shell and the puncturable membrane; and

a self-supporting liquid transporting element arranged within the cavity enclosed by the puncturable membrane and immersed in the liquid.

12. An electronic smoking device, comprising:

an elongated housing comprising a first hollow part and a second hollow part releasably connected to the first hollow part, the first hollow part and the second hollow part defining an internal space of the housing;

a replaceable capsule removably inserted into the internal space of the housing, the replaceable capsule including a shell having a lateral wall and an end wall, the lateral wall and the end wall defining a cavity open at one end, a puncturable membrane sealing the open end of the cavity, a liquid contained within the cavity by the shell and the puncturable membrane, and a liquid transporting element immersed in the liquid, the liquid transporting element comprising fibres of an inorganic material defining passages between the fibres for transporting the liquid;

an electrically heatable atomizer within the internal space of the housing, the atomizer comprising a rupture element extending into the open end of the cavity of the capsule through a rupture of the puncturable membrane of the capsule when the capsule is inserted into the internal space, wherein the rupture element comes into fluid contact with the liquid transporting element of the capsule.

13. The electronic smoking device according to claim 12, wherein the first hollow part has a closed first end and an open second end, and the second hollow part has a first end and a second end, with the open second end of the first hollow part engaged with the first end of the second hollow part, and the second end of the second hollow part forms a mouth piece wherein the capsule is insertable into the first hollow part with the puncturable membrane adjacent to the atomizer.

14. The electronic smoking device according to claim 13, wherein an air passage is formed between an outer surface of the capsule and an inner surface of the first hollow part to allow an air stream from the atomizer to the mouth piece.

15. A method for filling a capsule, comprising:

feeding an empty capsule from a stock to an insertion apparatus wherein the capsule comprises a shell having a lateral wall and an end wall, the lateral wall and the end wall defining a cavity open at one end;

feeding a liquid transporting element to the insertion apparatus;

inserting the liquid transporting element into the cavity of the capsule from the one end of the capsule;

filling the cavity of the capsule with a liquid; and

sealing the one end of the cavity with a puncturable membrane.