Pipe joints or couplings – Having plural independent paths – Allowing relative motion of pipes
Patent
1999-03-08
2000-10-03
Browne, Lynne H.
Pipe joints or couplings
Having plural independent paths
Allowing relative motion of pipes
285 95, 285276, 285 61, F16L 3904
Patent
active
061262072
ABSTRACT:
A self-supported rotary joint for introducing a heating or cooling medium, such as steam or water, into a rotating drying or cooling drum. The rotary joint is supported upon the drum structure by a rotating bearing housing whose bearings support the stationary nipple. The nipple supports the stationary rotary joint body head, and the stationary syphon support tube which supports the stationary syphon structure inside the drum. To prevent damage to the hoses supplying steam or water to the joint body head, and removing condensate or water from the joint, in the event of bearing seizure causing rotating of the nipple, the joint body head is mounted upon the nipple outer end by frangible connectors in the form of shear pins which prevent excessive torque being imposed on the joint body head. The support tube serves as a thermal steam sleeve which is interposed between the steam and bearings to reduce bearing temperatures, and the bearings are axially located by spring means maintaining the bearings' position within the bearing housing regardless of thermal expansion.
REFERENCES:
patent: 4262940 (1981-04-01), Wiedenbeck et al.
patent: 4295484 (1981-10-01), Meisenheimer
patent: 4635969 (1987-01-01), Jackson
patent: 5169181 (1992-12-01), Timm et al.
Browne Lynne H.
Dunwoody Aaron M
The Johnson Corporation
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