Stuffing box assembly

Details Stuffing box assembly Stuffing box assembly

1988-07-05

1990-01-09

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

251214, 277105, 277187, 277188R, 277204, 277213, 277235R, 277DIG6, F16J 1528, F16J 1530, F16K 4102

Patent

active

048923206

ABSTRACT:
A stuffing box especially for a high pressure steam valve has a plurality of packing rings including at least one laminate ring flanking a coiled graphite pressed ring, the laminate ring consisting of a stack of pressed expanded graphite foil annular disks between which and flanking which stainless steel metal foil layers can be provided.

REFERENCES:
patent: 1543963 (1925-06-01), Walton
patent: 2188664 (1940-01-01), Mochel
patent: 2251211 (1941-07-01), Armstrong
patent: 3761055 (1973-09-01), Ebuchi et al.
patent: 4068853 (1978-01-01), Schnitzler
patent: 4090719 (1978-05-01), Simanskis et al.
patent: 4214761 (1980-07-01), Pippert
patent: 4280709 (1981-07-01), Heikes, Jr. et al.
patent: 4305567 (1981-12-01), Lunt
patent: 4394023 (1983-07-01), Hinojosa

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