Nitrogen die cylinder

Details Nitrogen die cylinder Nitrogen die cylinder

1984-05-25

1985-07-16

Husar, Francis S.

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

267124, B21J 918

Patent

active

045288380

ABSTRACT:
A nitrogen die cylinder is disclosed having an upright post threaded at its lower end into the wall of a manifold containing nitrogen at high pressure. The post has a central vertical passageway extending therethrough and communicating with the manifold. A cylindrical sleeve having a top wall is telescoped over the post. A seal at the upper end of the post engages the bore of the sleeve to form a chamber between the seal and the top wall of the sleeve which, when pressurized, urges the sleeve upwardly on the post. The top wall of the post has a noncircular socket therein which is accessible through an opening in the top wall of the sleeve which is normally closed and sealed by means of a threaded plug.

REFERENCES:
patent: 3162159 (1964-12-01), Krauss et al.

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