Rotary pipe joint

Details Rotary pipe joint Rotary pipe joint

1978-06-05

1980-11-18

Callaghan, Thomas F.

Pipe joints or couplings

With heating or cooling

285 47, 285190, F16L 5300

Patent

active

042342155

ABSTRACT:
A pressure-tight, rotary pipe coupling joins rotating, high temperature fluid transmission lines. Pressure seals of the coupling are maintained at a temperature lower than that of the high temperature or primary transmitted fluid by thermally insulating the seals from the high temperature fluid and by pumping a fluid coolant through annular cavities located adjacent the seals. A balanced pressure structure substantially eliminates thrust forces between the coupling members and reduces rotating friction.

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patent: 3167332 (1965-01-01), Simmers
patent: 3411526 (1968-11-01), Schaefer
patent: 3514127 (1970-05-01), Brooker
patent: 3694008 (1972-09-01), Slator et al.
patent: 4017102 (1977-04-01), Henderson
patent: 4154446 (1979-05-01), Usry

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