Shaft-sealing device having an inner modular structure for...

Details Shaft-sealing device having an inner modular structure for... Shaft-sealing device having an inner modular structure for...

2007-04-17

2007-04-17

Patel, Vishal (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

C277S373000, C277S390000

Reexamination Certificate

active

10907867

ABSTRACT:
A shaft-sealing device includes a shaft tube, a retaining ring member, a rotary ring member, a resilient ring member and a sealing ring member. The shaft tube provides with an annular end flange and engaging notches thereon. The rotary ring member also provides with engaging recessions. Correspondingly, the retaining ring member provides with engaging teeth. In assembling, the resilient ring member is retained between the annular end flange of the shaft tube and the retaining ring member by the engaging teeth engaging with the engaging notches. The sealing ring member is disposed between the retaining ring member and the rotary ring member by the engaging teeth engaging with the engaging recessions. Consequently, the resilient ring member, the retaining ring member, the sealing ring member and the rotary ring member are successively mounted on the shaft tube in a longitudinal direction to constitute an inner modular structure.

REFERENCES:
patent: 3025070 (1962-03-01), Copes
patent: 3472522 (1969-10-01), Winfrey
patent: 3655206 (1972-04-01), Adams
patent: 5370403 (1994-12-01), Sedy
patent: 5560622 (1996-10-01), Sedy
Taiwan Patent Publication No. 454,827, Sep. 11, 2001, 6 pages.
Taiwan Patent Publication No. 454,839, Sep. 11, 2001, 5 pages.
Taiwan Patent Publication No. 459,938, Oct. 11, 2001, 6 pages.

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