Pipe joints or couplings – End to side or plate – Countersunk packed
Patent
1994-04-25
1996-07-09
Nicholson, Eric K.
Pipe joints or couplings
End to side or plate
Countersunk packed
285190, 2853827, F16L 502
Patent
active
055337643
ABSTRACT:
The present invention relates to an improved hydraulic coupling which forms contact seals to fluidly connect a tapered port with a tube having a threaded connecting portion. The contact seals may be metal-to-metal seals, or alternatively may include a resin polymer element. The invention provides a fluid coupling for a tube which is transverse to the port, allowing for flow redirection in the coupling similar to the flow redirection in prior art "banjo" couplings. The body of the port includes a lip which deforms on the inner tapered surface of the fitting, and the fitting also includes an inner tapered surface on which a rim of the bolt contacts, thereby providing a contact seal at both potential leak points. The lipped port may also be provided by a collar disposed between the port and the fitting. Optionally, o-rings may be added to provide additional seals. The present invention may be designed not to seal without the application of tool generated torques.
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Nicholson Eric K.
NWD International Inc.
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