Tile flood pump

Details Tile flood pump Tile flood pump

2011-08-30

2011-08-30

Freay, Charles (Department: 3746)

Pumps

Operated by art device

Vehicle mounted or attached

C417S300000

Reexamination Certificate

active

08007249

ABSTRACT:
A tile flood pump for attachment to a tile or drain pipe and pumping water from a field. The pump includes a pump housing, a flange bolted to the tile and an impeller housing enclosing one or more, lower rotating impellers, and extending into the pump housing for pumping water from the field through the impeller housing and the tile. A flapper valve can be provided on the intake end of the pump housing to facilitate flow of water through the pump housing and the tile. A shaft housing extends into the pump housing for enclosing a drive shaft that mounts the lower impeller(s) and connects to an external drive system. A shaft housing extension is removably fitted into the shaft housing for enclosing an upper impeller to flood and cool the upper marine and load bearings which carry the impeller shaft, upon which the upper impeller is mounted.

REFERENCES:
patent: 2799229 (1957-07-01), Ogles et al.
patent: 2962866 (1960-12-01), Muehlfeld
patent: 3008422 (1961-11-01), Crisafulli
patent: 3832093 (1974-08-01), Shirek et al.
patent: 3905725 (1975-09-01), Johnson
patent: 4175916 (1979-11-01), Crisafulli
patent: 4594006 (1986-06-01), Depeault
patent: 5364233 (1994-11-01), Benoit
patent: 5624241 (1997-04-01), Nesseth
patent: 6988874 (2006-01-01), Spargo
patent: 2002/0187054 (2002-12-01), Eller et al.

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