Cleaning and liquid contact with solids – Apparatus – Sequential work treating receptacles or stations with means...
Patent
1991-10-10
1993-06-15
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
Sequential work treating receptacles or stations with means...
134 1, 134 74, 134111, 134184, 310317, A47L 1524, A47L 1542
Patent
active
052189805
ABSTRACT:
An improved dishwasher system utilizes ultrasonic signals to clean a wide range of kitchen and/or dining ware items. The system includes one or more ultrasonic signal generators submerged within a water bath and regulated by a controller to generate an ultrasonic signal, resulting in the production of a large quantity of cavitation bubbles which implode with a vigorous cleaning action against submerged kitchen ware items. The controller rapidly varies the specific frequency of the generated ultrasonic signal, preferably in conjunction with a rapid on-off pulse cycling of the signal, to prevent damage to or breakage of fragile ware items.
REFERENCES:
patent: 2985003 (1961-05-01), Gelfand et al.
patent: 3371233 (1968-02-01), Cook
patent: 3963984 (1976-06-01), Coulter
patent: 4170241 (1979-10-01), Clapp
patent: 4498934 (1985-02-01), Potts
patent: 5076854 (1991-12-01), Honda et al.
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