Patent ID: 6125883
Filing Date: 2000-10-03
Classification: B23Q,F04D,Y10T

Abstract:
A floor mounted sump pump assembly for pumping particulate laden dirty coolant discharged by a floor mounted machine tool station, the sump pump assembly comprising:a sump tank having a generally cylindrical wall spaced around a central axis and an inclined bottom portion with a central lower region;a sump pump positioned within the sump tank offset from the central axis of the sump tank, the sump pump having a pump inlet oriented above and adjacent to the central lower region of the sump tank;a conduit having an inlet coupled to a floor mounted machine tool station for receiving particulate laden dirty coolant from the machine tool station and an outlet coupled to the sump tank for discharging the dirty coolant into the sump tank, the outlet being oriented generally tangential to the cylindrical wall of the sump tank such that the dirty coolant discharged into the sump tank swirls down around the inclined bottom portion to the central lower region for the pump inlet to draw and pump the dirty coolant out of the sump tank;an overflow tank adjacent to the sump tank so that in the event that the sump tank overflows with dirty coolant the overflow tank collects such overflow coolant; anda return pump operable with the overflow tank to dump the overflow coolant back into the sump tank;wherein the sump pump assembly is further provided with support portions for orienting the sump pump assembly on the floor adjacent to the machine tool station.