Textiles: fluid treating apparatus – Machines – Combined
Patent
1988-12-12
1989-11-14
Stinson, Frankie L.
Textiles: fluid treating apparatus
Machines
Combined
68 18F, 210167, 202170, D06F 4308
Patent
active
048798886
ABSTRACT:
An improved dry cleaning machine is disclosed, which comprises a rotating drum, at least one storage tank for a cleaning solvent used in the drum, a pump for circulating the solvent from the tank to the drum through a feed line including a lint collector, a solvent filtration unit including at least one filter through which the solvent may be passed downstream the lint collector, a solvent decoloration unit including a bed of activated carbon through which the solvent may also be passed whenever necessary, and a solvent distillation unit comprising a still, a condenser and a separator. The improvement consists of a regeneration unit incorporated into the machine and comprising a regeneration chamber in which the carbon used in the decoloration unit may be introduced, preheated and reactivated with live steam, whenever desired. Such a regeneration unit permits to substantially reduce the operation cost of the machine, as it avoids the repeated purchase and installation of costly refill power filters and/or carbon cartridges to keep the decoloration unit active. The improvement also consists in the use of a new kind of micro-filtration filter made of fabric in the solvent filtration unit.
REFERENCES:
patent: 3295689 (1967-01-01), Arvanitakis
patent: 3429148 (1969-02-01), Worthington
patent: 3497452 (1970-02-01), Arvanitakis
patent: 3522718 (1970-08-01), Gillespie
patent: 4091643 (1978-05-01), Zucchini
patent: 4601181 (1986-07-01), Privat
patent: 4712392 (1987-12-01), Hagiwara et al.
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