CONNECTOR ASSEMBLY AND METHOD

• US 20170325502A1
• Filed: 05/13/2016
• Published: 11/16/2017
• Est. Priority Date: 05/13/2016
• Status: Abandoned Application

• Current Assignee: Altria Client Services LLC (Altria Group, Inc.)
• Original Assignee: Altria Client Services LLC (Altria Group, Inc.)
• Inventors: NELSON, Greg, PATIL, Bipin, SUNDAR, Rangaraj, CROW, Jimmy, CRUMP, Clark
• Application Number:
  US15/154,439
• Publication Number:
  US 20170325502A1
• Time in Patent Office: Days
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/40 Constructional details, e.g. connection of cartridges and battery parts
• CPC Class Codes: A24F 40/70 Manufacture
• CPC Class Codes: B21D 22/24 involving two drawing operations having effects in opposite directions with respect to the blank
• CPC Class Codes: H05B 3/0014 Devices wherein the heating current flows through particular resistances

Abstract

A method of forming a post of a cartridge of an electronic vaping device includes cutting a blank from a sheet of metal, drawing the blank to a desired diameter and length to form an elongate body, reverse drawing a portion of the elongate body to form a first end having an opening therein, the first end being generally cylindrical and having a generally beveled edge at an edge thereof, forming a bulged portion between the first end and a second end of the elongate body, and forming a flared section at the second end.

Claims

1. A method of forming a post of a cartridge of an electronic vaping device, the method comprising:

cutting a blank from a sheet of metal;

drawing the blank to a desired diameter and length to form an elongate body;

drawing a portion of the elongate body to form a first end having an opening therein, the first end being generally cylindrical and having an edge;

forming a first portion between the first end and a second end of the elongate body; and

forming a second portion at the second end.

2. The method of claim 1, further comprising:

trimming a portion of the second portion to form the post.

3. The method of claim 2, further comprising:

debarring the post.

4. The method of claim 3, further comprising:

cleaning the post.

5. The method of claim 4, further comprising:

passivating the post.

6. The method of claim 5, wherein the passivating comprises:

treating the post with at least one of nitric acid and citric acid.

7. The method of claim 6, wherein the treating includes placing the post in a solution containing at least one of nitric acid and citric acid for about 1 minute to about 60 minutes at a temperature ranging from about 50°

F. to about 200°

F.

8. The method of claim 7, further comprising:

removing the post from the solution; and

rinsing the post with water until the water has a pH of about 6 to about 8.

9. The method of claim 1, wherein the blank is formed of stainless steel.

10. The method of claim 1, wherein the blank has a diameter ranging from about 0.500 inch to about 0.700 inch and a thickness ranging from about 0.010 inch to about 0.040 inch.

27. The cartridge of claim 1 therein an outer diameter of the first post end is about the same as an inner diameter of the inner tube.

11. A method of forming a connector piece of a cartridge of an electronic vaping device, the method comprising:

forming a metal blank from a sheet of metal;

drawing the metal blank to a desired depth and diameter to form a connector piece body;

punching a hole in a first end of the connector piece body; and

forming a threaded portion on an inner surface of a second end of the connector piece body to form the connector piece.

12. The method of claim 11, further comprising:

deburring the connector piece.

13. The method of claim 12, further comprising:

cleaning the connector piece.

14. The method of claim 11, wherein the forming a threaded portion comprises:

using a tap to form the threaded portion.

15. The method of claim 11, wherein the forming a threaded portion comprises:

thread rolling to form the threaded portion.

16. The method of claim 11, wherein the blank has a diameter ranging from about 0.750 inch to about 1.000 inch and a thickness ranging from about 0.010 inch to about 0.060 inch.

17. A cartridge of an electronic vaping device comprising:

an outer housing extending in a longitudinal direction, the outer housing having a first end and a second end;

an inner tube extending in the longitudinal direction, the inner tube within the outer housing;

a reservoir between the outer housing and the inner tube;

a heating element in the inner tube;

a first connector body in the second end of the outer housing, the first connector body being generally cylindrical, the first connector body including,

an orifice extending through the first connector body, the orifice extending in the longitudinal direction;

a connector gasket extending through a portion of the orifice in the first connector body, the connector gasket including a second orifice extending in the longitudinal direction through the connector gasket; and

a post extending through the second orifice in the connector gasket, the post including,

a first post end, and

a second post end, the first post end sized and configured to fit within the inner tube, the first post end in direct contact with an inner wall of the inner tube, the second post end in contact with a portion of the first connector body, and the cartridge excluding a gasket in contact with the reservoir.

18. The cartridge of claim 17, wherein the heating element includes opposing end portions extending into the reservoir.

19. The cartridge of claim 18, further comprising:

a first electrical lead and a second electrical lead, the first and second electrical leads connected to respective ones of the opposing end portions of the heating element.

20. The cartridge of claim 19, wherein the first electrical lead is attached to the first connector body and the second electrical lead is attached to the post.

21. The cartridge of claim 17, wherein the post includes an air flow passage extending therethrough, the air flow passage establishing an air flow channel between the connector and the inner tube.

22. The cartridge of claim 21, wherein the air flow passage has an inner diameter ranging from about 1.50 mm to about 1.70 mm.

23. The cartridge of claim 21, wherein the post includes a first portion between a first end and a second end thereof, the first portion sized and configured to maintain the post within the second orifice of the connector gasket.

24. The cartridge of claim 23, wherein the post includes a second portion at the second end thereof, the second portion configured to contact an inner surface of the first connector body.

25. The cartridge of claim 24, wherein the first end of the post has about a same diameter as an outer diameter of the second portion of the post.

26. The cartridge of claim 17, wherein the first connector body and the post are formed of stainless steel.

28. The cartridge of claim 17, wherein the first end of the post has a larger diameter than a central portion of the post.

29. The cartridge of claim 17, therein the first end of the post is generally cylindrical.

30. The cartridge of claim 29, wherein the first end of the post includes a beveled edge.