Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1979-04-30
1981-06-09
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 17, 277 22, 277 23, 277 93R, 277 96, 277 15, 277 3, 277 41, F16J 1554, F16J 1556
Patent
active
042720842
ABSTRACT:
A multiple stage mechanical end face seal assembly which has been developed to improve seal reliability and performance during both steady-state and transient operation. The seal assembly features a rotating seal ring mounting system which utilizes a rigid support ring loaded thru narrow annular projections in combination with centering non-sealing O-rings which effectively isolate the rotating seal ring from temperature and pressure transients while securely positioning the ring to adjacent parts, and a stationary seal ring mounting configuration which allows the stationary seal ring freedom of motion to follow shaft axial movement up to 3/4 of an inch and shaft tilt about the pump axis without any change in the hydraulic or pressure loading on the stationary seal ring or its carrier. An internal filter arrangement prevents plugging of the pressure staging coils in a multi-stage seal assembly.
REFERENCES:
patent: 2418194 (1947-04-01), Piccardo
patent: 2586739 (1952-02-01), Summers
patent: 2824759 (1958-02-01), Tracy
patent: 3275330 (1966-09-01), Rein et al.
patent: 3356377 (1967-12-01), Voitik
patent: 3360272 (1967-12-01), Blom et al.
patent: 3941395 (1976-03-01), Ball et al.
patent: 4094513 (1978-06-01), Kime et al.
patent: 4095806 (1978-06-01), Dempsey
patent: 4099728 (1978-07-01), Wiese
Martinson Arthur R.
Rogers Victor D.
Guy F. Atkinson Company
Schermerhorn Lee R.
Ward, Jr. Robert S.
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