Claims
- 1. An overpack for packing a cylinder containing a compressed gas, the overpack comprising:
a first container having an outer surface, a first end, and a second end and being sized to be capable of receiving the cylinder; a first end cap spacer disposed at the first end of the first container; a second end cap spacer at the second end of the first container; and, a second container having an inner surface, the second container sized to receive the first container with the first end cap spacer and the second end cap spacer disposed thereon such that the outer surface of the first container is disposed in spaced apart relation to the inner surface of the second container; a thermal barrier disposed between the first container and the second container.
- 2. The overpack of claim 1, wherein the thermal barrier is a thermal barrier sheet wrapped around at least a portion of the outer surface of the first container.
- 3. The overpack of claim 1, wherein the thermal barrier is a thermal barrier sheet disposed on the inner surface of the second container.
- 4. The overpack of claim 1, wherein the second container has an outer surface with a flame retardant coating.
- 5. The overpack of claim 1, further comprising a bottom ring disposed adjacent to the cylinder.
- 6. The overpack of claim 5, further comprising a head ring disposed at the end of the cylinder opposite from the bottom ring.
- 7. The overpack of claim 1, wherein the first container has a plurality of side walls extending into flaps, the flaps capable of being folded over each other to form end walls at opposite ends of the first container.
- 8. The overpack of claim 7, wherein the thermal barrier substantially covers the plurality of side walls of the first container.
- 9. The overpack of claim 1, wherein the first end cap spacer is disposed over the thermal barrier.
- 10. The overpack of claim 1, wherein the second end cap spacer is disposed over the thermal barrier.
- 11. The overpack of claim 1, wherein the second container has a flame retardant coating on the inner surface.
- 12. The overpack of claim 1, wherein the first end cap spacer is unitary.
- 13. The overpack of claim 1, wherein the first end cap spacer is formed by a pair of elements that overlie each other.
- 14. An overpack for packing a cylinder containing a compressed gas, the overpack comprising:
a first container having an outer surface, a first end, and a second end and being sized to be capable of receiving the cylinder; a first end cap spacer disposed at the first end of the first container; a second end cap spacer at the second end of the first container; and, a second container having an inner surface, the second container sized to receive the first container with the first end cap spacer and the second end cap spacer disposed thereon such that the outer surface of the first container is disposed in spaced apart relation to the inner surface of the second container; a thermal barrier disposed between the first container and the second container; a third end cap spacer disposed at the first end of the second container; a fourth end cap spacer at the second end of the second container; and, a third container having an inner surface, the third container sized to receive the second container with the third end cap spacer, and the fourth end cap spacer disposed thereon such that the outer surface of the second container is disposed in spaced apart relation to the inner surface of the third container.
- 15. The overpack of claim 14, wherein the thermal barrier is a thermal barrier sheet wrapped around at least a portion of the outer surface of the first container.
- 16. The overpack of claim 14, wherein the thermal barrier is a thermal barrier sheet disposed on the inner surface of the second container.
- 17. The overpack of claim 14, wherein the third container has an outer surface with a flame retardant coating.
- 18. The overpack of claim 14, further comprising a bottom ring disposed adjacent to the cylinder.
- 19. The overpack of claim 18, further comprising a head ring disposed at the end of the cylinder opposite from the bottom ring.
- 20. The overpack of claim 14, wherein the first container has a plurality of side walls extending into flaps, the flaps capable of being folded over each other to form end walls at opposite ends of the first container.
- 21. The overpack of claim 20, wherein the thermal barrier substantially covers the plurality of side walls of the first container.
- 22. The overpack of claim 14, wherein the first end cap spacer is disposed over the thermal barrier.
- 23. The overpack of claim 14, wherein the second end cap spacer is disposed over the thermal barrier.
- 24. The overpack of claim 14, wherein the third container has a flame retardant coating on the inner surface.
- 25. The overpack of claim 14, wherein the first end cap spacer is unitary.
- 26. The overpack of claim 14, wherein the first end cap spacer is formed by a pair of elements that overlie each other.
- 27. A method of packing a cylinder containing a compressed gas, comprising:
placing a head ring at a first end of the cylinder; placing a bottom ring at a second end of the cylinder; inserting the cylinder into a first container; closing and sealing the first container; placing end cap spacers at each end of the first container to form a first container assembly; inserting the first container assembly into a second container such that an outer surface of the first container is disposed in spaced apart relation to an inner surface of the second container; providing a thermal barrier between the first and second container.
- 28. The method of claim 27, wherein the thermal barrier is a thermal barrier sheet wrapped around at least a portion of the outer surface of the first container.
- 29. The method of claim 27, wherein the thermal barrier is a thermal barrier sheet disposed on the inner surface of the second container.
- 30. The method of claim 27, wherein the second container has a flame retardant coating on an outer surface.
- 31. The method of claim 30, wherein the second container has a flame retardant coating on an inner surface.
- 32. The method of claim 27, further comprising:
placing end cap spacers at opposite ends of the second container.
- 33. The method of claim 32, further comprising:
inserting the second container into a third container such that an outer surface of the second container is disposed in spaced apart relation to an inner surface of the third container.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] Applicant hereby claims priority based on U.S. Provisional Application No. 60/184,125 filed Feb. 22, 2000, entitled “Packaging for Shipping Compressed Gas Cylinders” which is incorporated herein by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60184125 |
Feb 2000 |
US |