Nitrogen die cylinder

Details Nitrogen die cylinder Nitrogen die cylinder

1984-06-14

1986-12-16

Garrett, Robert E.

Expansible chamber devices

Moving cylinder

92128, 92134, 92165PR, 267119, 267130, F01B 1500

Patent

active

046287965

ABSTRACT:
A nitrogen die piston-cylinder unit has a central post threaded at one end into a nitrogen manifold. The piston has an axial bore therethrough. A sleeve closed at one end is telescoped over the free end of the post and is vertically slideable thereon. The upper end of the post has an annular seal thereon in sliding sealed engagement with the bore of the sleeve. A key and keyway formed on the inside of the sleeve and the outside of the post are arranged to interengage when the sleeve is fully telescoped over the post to prevent relative rotation therebetween. The exposed end face of the sleeve is formed with recesses adapted to be engaged by a spanner wrench to enable the unit to be removed from the threaded port of the manifold when the key is engaged with the keyway.

REFERENCES:
patent: 2223915 (1939-08-01), Lambert
patent: 2549689 (1951-04-01), Jurs, Jr.
patent: 4005763 (1977-02-01), Wallis

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