Pressurized can

Abstract

The invention relates to a pressurized can, such as an aerosol can, having a bottom comprising a panel connected via a countersink and a foot to the can body wall, which bottom has a panel with a substantially non-concave form.

Claims

1. A pressurized metal can having a bottom comprising a panel connected with a panel radius (R4) to a countersink having a panel wall angle (A2), a foot wall angle (A1), and a countersink radius (R3), which countersink is connected to a foot having a foot radius (R2) and the foot is connected to a can body wall, which panel has a substantially non-concave form, wherein the foot wall angle (A1) is in the range of about 0 to 45; a panel wall angle (A2) is in the range of about 0-45; the foot radius (R2) is in the range of about 0.5 to 1.5 mm; the countersink radius (R3) is in the range of about 0.5 to 1.5 mm; the panel radius (R4) is in the range of about 1 to 1.5 mm; a unit depth (H1) is in the range of about 5-15 mm; a panel depth (H2) is in the range of about 2-10 mm; and a center panel radius (R5) is larger than about 20 mm, wherein the can has a diameter in the range of about 20-80 mm, a bottom thickness in the range of 0.2-0.7 mm, and a pressure resistance up to about 15 bar.

2. The pressurized metal can according to claim 1, wherein the pressurized can is an aerosol can.

3. The pressurized metal can according to claim 1, wherein a panel wall angle (A2) is in the range of about 2-35.

4. The pressurized metal can according to claim 1, wherein a panel outer ring slope (A3) is in the range of about 0-35.

5. The pressurized metal can according to claim 1, wherein a panel outer ring width (L1) is within the range of about 0-15 mm.

6. The pressurized metal can according to claim 1, wherein a foot outer radius (R13) is less than about 5 mm.

7. The pressurized metal can according to claim 1, wherein a foot height (H11) is in the range of about 1-7 mm.

8. The pressurized metal can according to claim 1 made of at least one of the following: steel, aluminum, 3000 series aluminum, or any combination thereof.

9. The pressurized metal can according to claim 1, wherein a panel outer ring slope (A3) is in the range of about 2-20.

10. The pressurized metal can according to claim 1, wherein a panel outer ring width (L1) is within the range of about 1-5 mm.

11. The pressurized metal can according to claim 1, wherein a foot outer radius (R13) is less than about 0.5-1.5 mm.

12. The pressurized metal can according to claim 1, wherein a foot height (H11) is in the range of about 2-5 mm.

13. The pressurized metal can according to claim 1, having a diameter in the range of 30-70 mm.

14. The pressurized metal can according to claim 1, having a pressure resistance of up to about 18 bar.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a cross section of a part of the bottom of a pressurized can according to the invention;

(2) FIG. 2 is a detail from FIG. 1 in relation to the foot of the pressurized can according to the invention; and

(3) FIGS. 3-5 are other profiles of bottoms for a pressurized can.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(4) FIG. 1 shows a part of the bottom of a pressurized can according to the invention. The pressurized can has a cylindrical form of which the body can wall is substantially vertical and connected to a preferably necked opening for filling and emptying the content for the pressurized can.

(5) In the given example the bottom has the following dimensions:

(6) A1 food wall angle 1

(7) A2 panel wall angle 1

(8) A3 panel outer ring slope 0

(9) L1 panel outer ring width 0 mm

(10) R2 foot radius 1 mm

(11) R3 countersink radius 1 mm

(12) R4 panel radius 1 mm

(13) R5 center panel radius 40 mm.

(14) The bottom has a thickness of 0.4 mm and was made of aluminum 3140.

(15) The can had a foot radius R1 of 17.5 mm. The diameter of the pressurized can according to the invention was 45 mm.

(16) At a unit depth H1 of 10.0 to 10.4 mm and at a panel depth H2 of 4.0 to 4.4 mm the pressurized can could withstand a pressure up to about 19 bars prior to the formation of buckles.

(17) The FIGS. 3, 4 and 5 show other profiles for a bottom of a pressurized can.

(18) For aerosol cans having a diameter of 30 mm, 45 mm and 60 mm the main parameters for the bottom shown in FIG. 3 are as follows:

(19) TABLE-US-00001 Main parameters Parameter Range Preferred range Importance 1 20-45 35-40 High H2 3-25 5-15 High R2 0.5-3 0.7-2 High R4 0.5-3 0.7-2 High R5 15-100 25-50 Minor R6 0.5-10 0.7-5 Minor H1 2-20 4-10 Minor

(20) In relation to the bottom profiles shown in FIG. 4 the following main parameters are relevant:

(21) TABLE-US-00002 Main parameters Parameter Range Preferred range Importance 1 20-45 35-40 High H2 3-25 5-15 High R2 0.5-3 0.7-2 High R4 0.5-3 0.7-2 High A1 .sup.0-30 .sup.0-15 High R5 15-100 25-50 Minor R6 0.5-10 0.7-5 Minor H1 2-20 4-10 Minor

(22) Finally, the main parameters of the bottom profile shown in FIG. 5 are as follows:

(23) TABLE-US-00003 Main parameters Parameter Range Preferred range Importance H2 3-25 5-15 High R2 0.5-3 0.7-2 High R4 0.5-3 0.7-2 High A1 .sup.0-30 .sup.0-15 High R5 15-100 25-50 Minor R6 0.5-10 0.7-5 Minor