Guide and seal assembly for a piston of a drowned piston type pu

Details Guide and seal assembly for a piston of a drowned piston type pu Guide and seal assembly for a piston of a drowned piston type pu

1981-07-20

1983-06-07

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 72R, 277 73, 92168, F16J 1518, F04B 3900

Patent

active

043867820

ABSTRACT:
A guide and seal assembly for a piston of a drowned piston type pump comprising at least a chamber within which the said piston reciprocates to suck into and supply from the said chamber a liquid. The assembly comprises a ring having a first frontal seat for a first annular seal element having a substantially C-shaped cross-section and an annular groove formed in the inner cylindrical surface of the ring and arranged to accommodate a second annular seal element of substantially U-shaped cross-section; a first and a second annular cavities formed in the ring communicate with each other by means of at least a radial hole, and the first annular cavity communicates with at least a discharge hole for the liquid which gathers in the first cavity.

REFERENCES:
patent: 2386898 (1945-10-01), Karassik
patent: 3100648 (1963-08-01), Lee et al.
patent: 3559540 (1971-02-01), Sheldon
patent: 4055107 (1977-10-01), Bartley

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