Liquid purification or separation – With time control
Reexamination Certificate
2011-06-21
2011-06-21
Popovics, Robert James (Department: 1776)
Liquid purification or separation
With time control
C210S142000, C210S143000, C210S167010, C210S167310, C210S172100, C210S195100, C210S248000, C210S251000, C210S255000, C210S262000, C210S297000, C210S331000, C210S332000, C210S345000, C210S359000, C210S391000, C210S407000, C068S0180FA, C134S111000, C008S141000, C008S142000
Reexamination Certificate
active
07964094
ABSTRACT:
A solvent filtration and recovery system for filtration and recovery of a solvent-based liquid used in dry cleaning includes filtration tank having filter chamber with motor-driven spin filters which are selectively operated. A valve and conduit arrangement allows the liquid from dry cleaning to enter the filter chamber for filtering and flows out as filtered liquid while the spin filters are not rotating. The arrangement allows initial at least partial draining of the solvent-based liquid in the filter chamber after such filtration procedure. A recovery tank is in communication with the filtration tank through a main drain. A motor drives the spin filters during a recovery procedure, in which centrifugal force caused by the rotating spin filters for a predetermined amount of time removes by-product from the spin filters, which is drained off from the filtration tank. A reservoir stores the solvent-based liquid and receives the liquid from both the recovery tank and the filtration tank. Operation is microprocessor implemented and controlled.
REFERENCES:
patent: 2593707 (1952-04-01), Walker
patent: 2705221 (1955-03-01), Clark et al.
patent: 3055290 (1962-09-01), Arvanitakis
patent: 3157598 (1964-11-01), Rebiscoul
patent: 3232081 (1966-02-01), Severance et al.
patent: 3316055 (1967-04-01), Moncada et al.
patent: 3438497 (1969-04-01), Maestrelli
patent: 3497452 (1970-02-01), Arvanitakis
patent: 3503878 (1970-03-01), Durr
patent: 3672958 (1972-06-01), McCandlish
patent: 3907681 (1975-09-01), Corrigan et al.
patent: 4279704 (1981-07-01), Noble et al.
patent: 4320002 (1982-03-01), Ihara
patent: 4626351 (1986-12-01), Fuhring
patent: 4879888 (1989-11-01), Suissa
patent: 4885099 (1989-12-01), Kelly
patent: 5047123 (1991-09-01), Arvanitakis
patent: 5205910 (1993-04-01), Arbizzani et al.
patent: 5228987 (1993-07-01), Arvanitakis
patent: 5620598 (1997-04-01), Strid
patent: 6474111 (2002-11-01), Pattee
patent: 7210182 (2007-05-01), Fyvie et al.
patent: 7356865 (2008-04-01), Rawson et al.
patent: 7603878 (2009-10-01), Fyvie
patent: 7681419 (2010-03-01), Naber et al.
patent: 2006/0169624 (2006-08-01), Radomyselski et al.
patent: 2007/0170120 (2007-07-01), Sudholt et al.
Sims Daniel
Sudholt Todd
Gilster Peter S.
Greensfelder Hemker & Gale, P.C.
Jim's Formal Wear Co.
Popovics Robert James
LandOfFree
Filtration and recovery system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filtration and recovery system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtration and recovery system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2637864