Packing assembly for a movable shaft

Details Packing assembly for a movable shaft Packing assembly for a movable shaft

1980-01-14

1981-09-01

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277102, 277110, F16J 1506, F16J 1518

Patent

active

042867916

ABSTRACT:
A gland body is coupled at its proximal end to a supporting housing by means of a union. A first packing chamber, for a static shutdown packing, is formed at the proximal end of the gland body, with a wedge ring forming the base of the chamber. The wedge ring has a beveled surface diverging outwardly from the base; and a packing body has a complementary beveled surface confronting the wedge ring. A mandrel having a reduced diameter proximal end is received within the gland body for urging the first packing toward the wedge ring. A second packing chamber is formed at the distal end of the gland body confronting the mandrel; and a packing cap threaded onto the distal end of the body compresses the second packing body to seal the mandrel and gland body. The distal end of the mandrel is enlarged to form a third packing chamber confronting the shaft for receiving a third packing body being a dynamic packing for the reciprocating shaft. A gland cap threaded onto the distal end of the mandrel compresses the third packing body.

REFERENCES:
patent: 2110098 (1938-03-01), Strecker
patent: 2322679 (1943-06-01), Williamson
patent: 3831676 (1974-08-01), Brown

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