Apparatus and method for recirculating machine tool coolant...

Details Apparatus and method for recirculating machine tool coolant... Apparatus and method for recirculating machine tool coolant...

2006-07-18

2006-07-18

Reifsnyder, David A. (Department: 1723)

Liquid purification or separation

Magnetic

With additional separator

C210S167050, C210S167150, C210S222000, C210S257100, C210S258000, C210S298000, C210S416100

Reexamination Certificate

active

07077954

ABSTRACT:
An apparatus and method for recirculating machine tool coolant in which coolant and entrained debris flowing in a shallow stream trough are raised to a higher level by rotation of a bladed wheel in a housing arranged to receive the liquid flow stream. Coolant and debris is then directed down at a magnetized body in a plunging discharge to bring ferrous debris into contact with an upwardly facing surface of the magnetized body. The coolant and nonferrous remaining entrained debris is collected in a tank and pumped back to the filter apparatus by a chopper pump which has a hardened impeller having cutting edges cutting up the remaining debris as it is pumped by the impeller.

REFERENCES:
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patent: 5980735 (1999-11-01), Bratten
patent: 6406635 (2002-06-01), Smith et al.
patent: 6705555 (2004-03-01), Bratten
patent: 1 034 306 (1953-09-01), None
patent: 0 536 973 (1993-04-01), None
patent: 1 122 024 (2001-08-01), None

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