Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2001-08-15
2003-09-02
Drodge, Joseph (Department: 1723)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S805000, C210S167050, C210S167150, C210S188000, C210S258000, C134S010000, C134S109000
Reexamination Certificate
active
06613233
ABSTRACT:
FIELD OF THE INVENTION
This invention relates generally to industrial process units that utilize pressurized working fluids.
BACKGROUND
Industrial process units typically include pumps to drive an industrial process fluid that the industrial process units employ to perform their function. For instance, aqueous parts washers often use alkaline detergents to remove contaminants (e.g., oils, grease, particulate matter, etc.) from the surfaces of work pieces. Likewise, machining operations employ cutting fluids to cool and lubricate a cutting tool and wash away contaminants (e.g., waste chips, oils, particulate matter, bacteria, etc.).
After a period of use, however, contaminants begin to accumulate in the industrial process fluid and thereby degrade the performance of the industrial process fluid. Therefore, it is desirable to employ a purification system to remove the contaminants from the industrial process fluid to extend the useful life of the fluids. It may also be desirable to remove the contaminants as a precursor to discharge of the industrial process fluid into a sewer system.
Known purification systems require the utilization of one or more pumps, in addition to the pump or pumps that an industrial process unit employs to pressurize and propel the industrial process fluid while performing their functions. The additional pump or pumps are used to transfer contaminated fluids into the purification system and to remove the contaminants from the industrial process fluid. Adding one or more pumps to an industrial process unit, however, is not cost effective given the cost of the additional pumps.
Therefore, a need exists for a cost effective approach to promote the removal of contaminants from an industrial process fluid in an industrial process unit.
REFERENCES:
patent: 3970560 (1976-07-01), Metzger
patent: 4876015 (1989-10-01), McKibben
patent: 4929351 (1990-05-01), Sanborn
patent: 4986918 (1991-01-01), Breslau et al.
patent: 5207917 (1993-05-01), Weaver
patent: 5324425 (1994-06-01), Ellison
patent: 5456842 (1995-10-01), Kibblehouse et al.
patent: 5622627 (1997-04-01), Fanning et al.
patent: 5720874 (1998-02-01), Siegler
patent: 5725758 (1998-03-01), Chace et al.
Lindsey Timothy
Pickowitz Joseph
Rajagopalan Kishore
Rusk Todd
Drodge Joseph
Gillen Gary R.
Wildman Harrold Allen & Dixon
LandOfFree
Multiple mode industrial process system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple mode industrial process system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple mode industrial process system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3025460