Packing materials for shaft seals

Details Packing materials for shaft seals Packing materials for shaft seals

1986-07-30

1987-05-26

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277233, 277DIG6, F16J 1522

Patent

active

046679693

ABSTRACT:
A packing material for shaft seals includes a resilient and flexible core of longitudinally braided yarns of discrete filaments, the core having been compressed into the form of a cylinder of substantially rectangular cross-section and in which the yarns are free of bonding agents in order to provide for relative movement of the filaments relative to each other within the core, the core having at least one winding on its outer surface of a graphite foil tape having its edges arranged in overlapping relationship to provide a continuous covering on the core, the outer covering on the core being secured thereto by a layer of adhesive.

REFERENCES:
patent: 1161213 (1915-11-01), Headson
patent: 2157867 (1939-05-01), Robertson et al.
patent: 2667684 (1954-02-01), Boyer et al.
patent: 2716034 (1955-08-01), Main
patent: 3404061 (1968-10-01), Shane et al.
patent: 3791658 (1974-02-01), Zumeta et al.

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