Rotary joint with balanced seals

Details Rotary joint with balanced seals Rotary joint with balanced seals

1987-02-17

1988-07-19

Arola, Dave W.

Pipe joints or couplings

U-type

285279, 285281, 285900, F16L 3904

Patent

active

047580267

ABSTRACT:
A rotary joint for establishing communication of a pressurized medium with a rotating heat exchanger drum wherein the joint seals and associated structure are of such configuration to permit internal balancing with respect to fluid pressures imposed thereon. A rotating nipple within the joint body utilizes spherical seal surfaces engaging annular seal rings to achieve self alignment and the nipple includes spring biased collars which automatically compensate for wear and retaining structure limits collar displacement to prevent joint damage.

REFERENCES:
patent: 2352317 (1944-06-01), Goff et al.
patent: 2385421 (1945-09-01), Monroe
patent: 2700558 (1955-01-01), Hieronymus
patent: 2911234 (1959-11-01), Heironymus
patent: 3594019 (1971-07-01), Gotschall
patent: 3874707 (1975-04-01), Calkins
patent: 4051604 (1977-10-01), Fleissner
patent: 4194767 (1980-03-01), McCracken
patent: 4262940 (1981-04-01), Wiedenbeck et al.
patent: 4477107 (1984-10-01), Ferguson et al.
patent: 4635949 (1987-01-01), Jackson

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