Stuffing-box packing

Details Stuffing-box packing Stuffing-box packing

1993-01-29

1995-09-26

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277227, 277234, 277105, F16J 1516

Patent

active

054529042

ABSTRACT:
A stuffing-box packing for establishing a seal between a housing bore and a rotatable shaft which has at least one packing ring comprising expanded graphite and a pair of disc-shaped stripper elements which are comprised of a suitable plastic or metal. To ensure high tightness over a long service life, the packing ring is inclined relative to the radial plane of the shaft, is covered on both sides by a stripper element having an edge which makes coaxial and circumferential contact with the shaft, the laminate of packing ring and stripper elements is arranged between two support rings-which have oblique support surfaces inclined corresponding to the angle of inclination of the packing ring, and the thickness of the packing ring is such that the area of the shaft swept by the packing ring is at least almost completely subjected to the stripping action of the stripper elements.

REFERENCES:
patent: 3039780 (1962-06-01), Nordel
patent: 3331609 (1967-07-01), Moran
patent: 4256317 (1981-03-01), Havens
patent: 4381868 (1983-05-01), Croy et al.
patent: 4451047 (1984-05-01), Herd et al.
patent: 4762189 (1988-08-01), Tatum

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