Pump shaft closure

Details Pump shaft closure Pump shaft closure

1979-07-25

1981-09-15

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 9, 277115, 277117, 251330, 251334, 251340, F16J 1518, F16K 100

Patent

active

042893178

ABSTRACT:
An improved stuffing box can effect an auxilliary static seal with a moveable shaft to allow replacement of packing elements. The stuffing box includes a sealing ring concentrically disposed around the shaft and means for mounting the sealing ring radially spaced apart from the shaft to permit lubricating fluid to flow between the sealing ring and the shaft during movement of the shaft. The stuffing box also includes a seal container axially moveable along the shaft for pressing the sealing ring radially against the shaft to form the static seal.

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patent: 2340016 (1944-01-01), Pruiett
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patent: 2655391 (1953-10-01), Atkins
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patent: 2876708 (1959-03-01), Frost
patent: 3119624 (1964-01-01), Freed
patent: 3578342 (1971-05-01), Satterthwaite et al.
patent: 3675933 (1972-07-01), Nappe

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