Rotating shaft seal assembly

Details Rotating shaft seal assembly Rotating shaft seal assembly

1981-04-24

1982-08-03

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 35, 277 88, F16J 1516, F16J 1554

Patent

active

043424619

ABSTRACT:
A seal assembly for sealing a rotary shaft including a rotary sealing cartridge and a stationary sealing cartridge and a flexible metal diaphragm secured to the face of the stuffing box. The stationary sealing cartridge is secured onto the flexible diaphragm and thus becomes self-aligning with the sealing surface of the rotary sealing cartridge eliminating a common source of leakage caused by misalignment of the surfaces. The use of the diaphragm permits elimination of the usual multitude of springs and O-rings used to achieve self-alignment, and permits the seal assembly to accommodate fluids at higher temperatures, as well as caustic fluids.

REFERENCES:
patent: 2000341 (1935-05-01), Larsh
patent: 3020052 (1962-02-01), Gits
patent: 3582091 (1971-06-01), Smith
patent: 3972536 (1976-08-01), Warner et al.

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