Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-12-04
1980-08-05
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
F16J 1534
Patent
active
042158702
ABSTRACT:
A sealing assembly is disclosed for effecting a sealing joint between relatively rotatable elements which include a stationary element and a rotatable shaft passing through the stationary element. The sealing assembly includes a stationary seal integral with or secured to the stationary element, the stationary seal having an annular sealing surface surrounding the rotatable shaft. A rotatable seal ring surrounds the shaft and has an annular sealing surface for engaging and cooperating with the annular sealing surface of the stationary seal to establish a seal therebetween. A rotatable collar is secured to the shaft for rotation therewith, and at least one selectively adjustable spring assembly is mounted on the collar for biasing the seal ring against the stationary seal to effect the sealing joint. The spring assembly includes a plunger, a pair of coil springs of different spring coefficients for biasing the plunger toward the seal ring, and an adjusting nut on the collar for selectively adjusting the biasing force of the coil springs.
REFERENCES:
patent: 1062438 (1913-05-01), Clark
patent: 1167210 (1916-01-01), Orr
patent: 2252526 (1941-08-01), Shenton
patent: 2354478 (1944-07-01), Reinhardt et al.
patent: 2455539 (1948-12-01), Wahl
patent: 2996319 (1961-08-01), Copes
patent: 3072414 (1963-01-01), Porges
patent: 3313550 (1967-04-01), Culman
patent: 3391942 (1968-07-01), Wilson
patent: 3529839 (1970-12-01), Greiner et al.
patent: 3589738 (1971-06-01), Tracy
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