HIGH-PRESSURE BOTTLE AND METHOD OF ITS MANUFACTURE Russian patent published in 2003 - IPC

FIELD: protracted storage and transportation of compressed and liquefied gases, mainly fire extinguishers. SUBSTANCE: proposed bottle has housing made in form of pipe with narrowing lower neck and profiled bottom welded to it and upper narrowing neck with bush located inside it; it is secured with neck by means of tube whose one end is screwed into bush and second end is welded to bottom. Method of manufacture of bottle includes forming of lower neck of housing, securing tube to bottom by means of circumferential weld seam followed by welding bottom with tube to lower neck of housing. Then, bush is secured in neck by screwing it on tube and sealing-up the joint by means of circumferential weld seam. EFFECT: enhanced reliability and durability; facilitated procedure. 3 cl, 11 dwg