Reciprocating pump packing

Details Reciprocating pump packing Reciprocating pump packing

1978-03-31

1979-08-21

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277149, 277164, 277165, 92241, F16J 106, F16J 1516

Patent

active

041650840

ABSTRACT:
A packing for a reciprocating pump comprises a resilient body of elastomeric material with a cup-like shape and includes a plurality of flat cantilevered spring members embedded within the annular wall of the body. The spring members provide support for the flexible wall and are essentially fixed in position at their ends disposed at the base of the cup-shaped body while being free to flex at their opposite ends adjacent the open end of the resilient body. A peripheral annular lip defines the open end of the cup-shaped body and has a profile in the axial direction which imposes a predetermined deflection curve on the spring members when the packing is surrounded and compressed by the cylindrical wall of a pump cylinder. A predetermined pressure profile results between the peripheral lip and the cylinder wall as the cantilevered spring members urge the peripheral lip to resume its uncompressed shape.

REFERENCES:
patent: 2036038 (1936-03-01), Gottlieb
patent: 2549706 (1951-04-01), Page
patent: 3092427 (1963-06-01), Sadler et al.
patent: 3094904 (1963-06-01), Healy
patent: 3103787 (1963-09-01), Reynolds
patent: 3450412 (1969-06-01), Collett

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