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Pressure canister

  • US 5,979,694 A
  • Filed: 04/09/1997
  • Issued: 11/09/1999
  • Est. Priority Date: 04/09/1997
  • Status: Expired due to Fees
First Claim
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1. A pressure vessel, comprising a pressurizable canister, said canister including a hollow, thin-walled, light weight cylindrical, metal shell, said metal shell being formed about two distally disposed end caps comprising a top end cap and a bottom end cap, respectively, said metal shell being mechanically sealed to each respective end cap by a process of electromagnetic pulse forming, said respective end caps comprising a high strength, ductile thermoplastic that will withstand the electromagnetic deforming forces induced in the mechanical sealing, whereby a mechanical bond is established between said metal shell and of said end caps wherein the material of said tube and said end caps become integrally and directly bonded one to the other with no intervening material therebetween.

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