|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||22/0582 ; 22/058.6|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 16 인용 특허 : 3|
A seamless steel-body cylinder, suitable for storing ultra-high purity gases, has an inert metal lining. The cylinder lining is preferably nickel and completely covers the interior surface of the steel cylinder body, preventing the stored gas from making any contact and reacting with the steel cylinder body. The surface of the inert metal lining is conditioned to be smooth, preferably to 15 R.sub.a or better. The cylinder body is preferably externally threaded to secure end closure devices to the cylinder body. A process for making the cylinder comprises...
[ What is claimed is:] [1.] A seamless steel-body gas storage cylinder comprising:(a) a seamless steel cylinder body having an exterior surface, an interior surface, an interior region, first and second ends, and at least one end face, said exterior surface having threads proximate to said first and second ends;(b) an inert metal layer entirely covering said interior surface, said inert metal layer having an exposed surface;(c) at least one end closure device having a gas transfer means;(d) at least one securing device threadably engaging the exterior su...