Pipe joints or couplings – End to side or plate – Flexible or yielding plate
Patent
1978-06-21
1980-07-15
Callaghan, Thomas F.
Pipe joints or couplings
End to side or plate
Flexible or yielding plate
F16L 4100
Patent
active
042124883
ABSTRACT:
This fitting is designed to be applied to a flexible walled tank, of the type employed in aircraft to hold fuel or other liquids, to provide a reinforced opening for receiving attachments, such as, connectors, gauges, pumps, conduits, and the like. The fitting is composed of a plurality of layers or plies of fabric reinforced elastic material, certain layers being mechanically connected to each other and all of the layers being adhesively joined at contacting overlapped portions into an integral unit. The layers are sized and shaped to give the unit inner and outer ring portions, the former being substantially solid and the latter having spaced flexible layers. Parts of the layers forming the inner ring portion of the unit have openings which are aligned to receive internally threaded elements for screws used to fasten the attachments to the fitting and hence to the tank. In installing the fitting in the tank wall, portions of the layers of such wall are disposed between the spaced flexible layers of the outer ring portion of the unit and the assembly is vulcanized. A rubber fuel barrier is molded over the inner ends of the fastening elements and inner edges of the inner ring portion to preclude leakage. The mechanical connection between the layers of the inner and outer ring portions transfers loads from the flexible tank wall to the substantially rigid inner ring portion and effectively resists separation or other failures.
REFERENCES:
patent: 2326263 (1943-08-01), Steiner
patent: 2366442 (1945-01-01), Cunningham
patent: 2404766 (1946-07-01), Hanson et al.
patent: 2441009 (1948-05-01), Cunningham
patent: 2459747 (1949-01-01), Kolbe
patent: 2675252 (1954-04-01), Haines
patent: 3537732 (1970-11-01), Cook
Callaghan Thomas F.
Omohundro Herschel C.
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