Transfer unit

Details Transfer unit Transfer unit

2011-04-19

2011-04-19

Schneider, Craig M (Department: 3753)

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

C244S129100

Reexamination Certificate

active

07926505

ABSTRACT:
In present-day aircraft a drain mast is used on the underside of the fuselage in order to discharge grey water to the external environment. According to an exemplary embodiment of the present invention there is no need to provide such a drain mast in that a transfer unit is used as a connection unit, and buffer storage spaces are used between the wash basins and the vacuum waste-water system. The transfer unit comprises a self-opening valve with a floating body for automatic discharge. This purely mechanical function and the simple design result in low susceptibility to malfunction and in a long service life.

REFERENCES:
patent: 3766933 (1973-10-01), Nicholson, Jr.
patent: 4275470 (1981-06-01), Badger et al.
patent: 4715561 (1987-12-01), Spinosa et al.
patent: 5062441 (1991-11-01), Glukhov
patent: 6152160 (2000-11-01), Bowden Wilcox et al.
patent: 6776183 (2004-08-01), Brooker et al.
patent: 3026763 (1981-02-01), None
patent: 2121079 (1983-12-01), None
Office Action from corresponding German Application 10 2005 045 343.0-22, dated Apr. 6, 2009.

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