Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-07-12
1997-05-13
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 2, 277 50, 277 75, 277 79, 277123, 277205, 415175, 415230, F16J 1518, F01D 1100
Patent
active
056285167
ABSTRACT:
An assembly for restraining oil leakage in a rotary oil well pump includes a stationary member and a rotary member. The rotary member is secured to the rotating rod and is sealed against the rod by conventional compressed packing. The rotary member has a cylindrical portion rotating within a cylindrical recess of the stationary member, with an annular recess defined between them. The recess contains two or more annular seal cartridges stacked one after the other in the annular space. The cartridges are designed to individually resist the ingress of the pressurized oil, so that leakage takes place sequentially past the individual cartridges. Leak passages are provided in the stationary member and are in communication with each of the cartridges respectively. When oil appears at any given leak passage, this signifies that the oil has bridged the defences of that cartridge and any cartridge or cartridges which are upstream of the leaking cartridge.
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Beres John L.
Cuchlinski Jr. William A.
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