Gas-operated cylinder

Details Gas-operated cylinder Gas-operated cylinder

B - Operations, Transporting

30

B

138/66

B30B 1/38 (2006.01) B21D 24/02 (2006.01) B21J 13/00 (2006.01) F16F 9/02 (2006.01) F16J 10/02 (2006.01)

Patent

CA 1139187

GAS-OPERATED CYLINDER Abstract of the Disclosure A gas-operated piston cylinder assembly arranged between upper and lower die members of a press. The lower end of the cylinder communicates with a source of high pressure gas and also communicates through a passageway with the upper rod end of the cylinder which is sealed from the surrounding atmosphere. The piston rod has a cross sectional area only slightly smaller than the piston. The passageway between the lower and the upper ends of the cylinder contains a lubricant impregnated member and a by pass controlled by a check valve which allows gas flowing from the rod end of the cylinder to the lower end thereof to bypass the lubri- cant impregnated member. ----------- o ----------- i.

372036

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