One-piece mounting ring for seal insert

Details One-piece mounting ring for seal insert One-piece mounting ring for seal insert

1983-08-30

1985-04-16

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 85, F16J 1538

Patent

active

045111510

ABSTRACT:
A mechanical seal construction employing a one-piece plastics packing ring of relatively rigid material for creating a sealed relationship between the nonrotatable seal ring and the stuffing box or gland. The packing ring has a main substantially rectangular body portion which defines an inner annular surface of substantial axial extent, which inner surface has a light interference fit with an opposed surface on the nonrotatable seal ring. A thin ringlike rib is integral with and externally surrounds the main body portion and projects radially outwardly therefrom, which rib is disposed in the axially central plane of the main body portion. This rib has the radially outer end or edge surface thereof maintained in a light interference fit with an opposed surrounding surface as defined on the gland or stuffing box. The seal areas are defined adjacent the axial end surfaces of the main body portion, one of which engages an opposed surface on the nonrotatable seal ring, and the other of which engages an opposed surface on either the gland or stuffing box.

REFERENCES:
patent: 2167669 (1939-08-01), Moltneux
patent: 2463695 (1949-03-01), Jensen
patent: 2590759 (1952-03-01), Dale et al.
patent: 2729478 (1956-01-01), Chambers et al.
patent: 2995391 (1961-08-01), Snyder
patent: 3220741 (1965-11-01), Mueller
patent: 3926443 (1975-12-01), Fenerty et al.
patent: 4067708 (1978-01-01), Sakaki
patent: 4239241 (1980-12-01), Menager

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